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Theorem matunitlindflem2 33536
Description: One direction of matunitlindf 33537. (Contributed by Brendan Leahy, 2-Jun-2021.)
Assertion
Ref Expression
matunitlindflem2 ((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝐼 ≠ ∅) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → ((𝐼 maDet 𝑅)‘𝑀) ∈ (Unit‘𝑅))

Proof of Theorem matunitlindflem2
Dummy variables 𝑓 𝑖 𝑗 𝑘 𝑛 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 eqid 2651 . . . . . . 7 (𝐼 Mat 𝑅) = (𝐼 Mat 𝑅)
2 eqid 2651 . . . . . . 7 (Base‘(𝐼 Mat 𝑅)) = (Base‘(𝐼 Mat 𝑅))
31, 2matrcl 20266 . . . . . 6 (𝑀 ∈ (Base‘(𝐼 Mat 𝑅)) → (𝐼 ∈ Fin ∧ 𝑅 ∈ V))
43simpld 474 . . . . 5 (𝑀 ∈ (Base‘(𝐼 Mat 𝑅)) → 𝐼 ∈ Fin)
54ad3antlr 767 . . . 4 ((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝐼 ≠ ∅) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → 𝐼 ∈ Fin)
6 isfld 18804 . . . . . . 7 (𝑅 ∈ Field ↔ (𝑅 ∈ DivRing ∧ 𝑅 ∈ CRing))
76simplbi 475 . . . . . 6 (𝑅 ∈ Field → 𝑅 ∈ DivRing)
87anim1i 591 . . . . 5 ((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → (𝑅 ∈ DivRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))))
94ad2antrl 764 . . . . . . . . . . . 12 ((𝑅 ∈ DivRing ∧ (𝑀 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ 𝐼 ≠ ∅)) → 𝐼 ∈ Fin)
10 simpr 476 . . . . . . . . . . . . . . 15 ((𝑅 ∈ DivRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → 𝑀 ∈ (Base‘(𝐼 Mat 𝑅)))
11 xpfi 8272 . . . . . . . . . . . . . . . . . . . . 21 ((𝐼 ∈ Fin ∧ 𝐼 ∈ Fin) → (𝐼 × 𝐼) ∈ Fin)
1211anidms 678 . . . . . . . . . . . . . . . . . . . 20 (𝐼 ∈ Fin → (𝐼 × 𝐼) ∈ Fin)
13 eqid 2651 . . . . . . . . . . . . . . . . . . . . 21 (𝑅 freeLMod (𝐼 × 𝐼)) = (𝑅 freeLMod (𝐼 × 𝐼))
14 eqid 2651 . . . . . . . . . . . . . . . . . . . . 21 (Base‘𝑅) = (Base‘𝑅)
1513, 14frlmfibas 20153 . . . . . . . . . . . . . . . . . . . 20 ((𝑅 ∈ DivRing ∧ (𝐼 × 𝐼) ∈ Fin) → ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) = (Base‘(𝑅 freeLMod (𝐼 × 𝐼))))
1612, 15sylan2 490 . . . . . . . . . . . . . . . . . . 19 ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) = (Base‘(𝑅 freeLMod (𝐼 × 𝐼))))
171, 13matbas 20267 . . . . . . . . . . . . . . . . . . . 20 ((𝐼 ∈ Fin ∧ 𝑅 ∈ DivRing) → (Base‘(𝑅 freeLMod (𝐼 × 𝐼))) = (Base‘(𝐼 Mat 𝑅)))
1817ancoms 468 . . . . . . . . . . . . . . . . . . 19 ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → (Base‘(𝑅 freeLMod (𝐼 × 𝐼))) = (Base‘(𝐼 Mat 𝑅)))
1916, 18eqtrd 2685 . . . . . . . . . . . . . . . . . 18 ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) = (Base‘(𝐼 Mat 𝑅)))
2019eleq2d 2716 . . . . . . . . . . . . . . . . 17 ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → (𝑀 ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) ↔ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))))
214, 20sylan2 490 . . . . . . . . . . . . . . . 16 ((𝑅 ∈ DivRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → (𝑀 ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) ↔ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))))
22 fvex 6239 . . . . . . . . . . . . . . . . . 18 (Base‘𝑅) ∈ V
234, 4, 11syl2anc 694 . . . . . . . . . . . . . . . . . 18 (𝑀 ∈ (Base‘(𝐼 Mat 𝑅)) → (𝐼 × 𝐼) ∈ Fin)
24 elmapg 7912 . . . . . . . . . . . . . . . . . 18 (((Base‘𝑅) ∈ V ∧ (𝐼 × 𝐼) ∈ Fin) → (𝑀 ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) ↔ 𝑀:(𝐼 × 𝐼)⟶(Base‘𝑅)))
2522, 23, 24sylancr 696 . . . . . . . . . . . . . . . . 17 (𝑀 ∈ (Base‘(𝐼 Mat 𝑅)) → (𝑀 ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) ↔ 𝑀:(𝐼 × 𝐼)⟶(Base‘𝑅)))
2625adantl 481 . . . . . . . . . . . . . . . 16 ((𝑅 ∈ DivRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → (𝑀 ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) ↔ 𝑀:(𝐼 × 𝐼)⟶(Base‘𝑅)))
2721, 26bitr3d 270 . . . . . . . . . . . . . . 15 ((𝑅 ∈ DivRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → (𝑀 ∈ (Base‘(𝐼 Mat 𝑅)) ↔ 𝑀:(𝐼 × 𝐼)⟶(Base‘𝑅)))
2810, 27mpbid 222 . . . . . . . . . . . . . 14 ((𝑅 ∈ DivRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → 𝑀:(𝐼 × 𝐼)⟶(Base‘𝑅))
2928adantrr 753 . . . . . . . . . . . . 13 ((𝑅 ∈ DivRing ∧ (𝑀 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ 𝐼 ≠ ∅)) → 𝑀:(𝐼 × 𝐼)⟶(Base‘𝑅))
30 eldifsn 4350 . . . . . . . . . . . . . . . 16 (𝐼 ∈ (Fin ∖ {∅}) ↔ (𝐼 ∈ Fin ∧ 𝐼 ≠ ∅))
3130biimpri 218 . . . . . . . . . . . . . . 15 ((𝐼 ∈ Fin ∧ 𝐼 ≠ ∅) → 𝐼 ∈ (Fin ∖ {∅}))
324, 31sylan 487 . . . . . . . . . . . . . 14 ((𝑀 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ 𝐼 ≠ ∅) → 𝐼 ∈ (Fin ∖ {∅}))
3332adantl 481 . . . . . . . . . . . . 13 ((𝑅 ∈ DivRing ∧ (𝑀 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ 𝐼 ≠ ∅)) → 𝐼 ∈ (Fin ∖ {∅}))
34 curf 33517 . . . . . . . . . . . . . 14 ((𝑀:(𝐼 × 𝐼)⟶(Base‘𝑅) ∧ 𝐼 ∈ (Fin ∖ {∅}) ∧ (Base‘𝑅) ∈ V) → curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼))
3522, 34mp3an3 1453 . . . . . . . . . . . . 13 ((𝑀:(𝐼 × 𝐼)⟶(Base‘𝑅) ∧ 𝐼 ∈ (Fin ∖ {∅})) → curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼))
3629, 33, 35syl2anc 694 . . . . . . . . . . . 12 ((𝑅 ∈ DivRing ∧ (𝑀 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ 𝐼 ≠ ∅)) → curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼))
379, 36jca 553 . . . . . . . . . . 11 ((𝑅 ∈ DivRing ∧ (𝑀 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ 𝐼 ≠ ∅)) → (𝐼 ∈ Fin ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)))
3837ex 449 . . . . . . . . . 10 (𝑅 ∈ DivRing → ((𝑀 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ 𝐼 ≠ ∅) → (𝐼 ∈ Fin ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼))))
3938imdistani 726 . . . . . . . . 9 ((𝑅 ∈ DivRing ∧ (𝑀 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ 𝐼 ≠ ∅)) → (𝑅 ∈ DivRing ∧ (𝐼 ∈ Fin ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼))))
4039anassrs 681 . . . . . . . 8 (((𝑅 ∈ DivRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝐼 ≠ ∅) → (𝑅 ∈ DivRing ∧ (𝐼 ∈ Fin ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼))))
41 anass 682 . . . . . . . 8 (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ↔ (𝑅 ∈ DivRing ∧ (𝐼 ∈ Fin ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼))))
4240, 41sylibr 224 . . . . . . 7 (((𝑅 ∈ DivRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝐼 ≠ ∅) → ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)))
43 drngring 18802 . . . . . . . . . . . . 13 (𝑅 ∈ DivRing → 𝑅 ∈ Ring)
44 eqid 2651 . . . . . . . . . . . . . 14 (𝑅 unitVec 𝐼) = (𝑅 unitVec 𝐼)
45 eqid 2651 . . . . . . . . . . . . . 14 (𝑅 freeLMod 𝐼) = (𝑅 freeLMod 𝐼)
46 eqid 2651 . . . . . . . . . . . . . 14 (Base‘(𝑅 freeLMod 𝐼)) = (Base‘(𝑅 freeLMod 𝐼))
4744, 45, 46uvcff 20178 . . . . . . . . . . . . 13 ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → (𝑅 unitVec 𝐼):𝐼⟶(Base‘(𝑅 freeLMod 𝐼)))
4843, 47sylan 487 . . . . . . . . . . . 12 ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → (𝑅 unitVec 𝐼):𝐼⟶(Base‘(𝑅 freeLMod 𝐼)))
4948ffvelrnda 6399 . . . . . . . . . . 11 (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ 𝑖𝐼) → ((𝑅 unitVec 𝐼)‘𝑖) ∈ (Base‘(𝑅 freeLMod 𝐼)))
5049ad4ant14 1317 . . . . . . . . . 10 (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) ∧ 𝑖𝐼) → ((𝑅 unitVec 𝐼)‘𝑖) ∈ (Base‘(𝑅 freeLMod 𝐼)))
51 ffn 6083 . . . . . . . . . . . . . . . 16 (curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼) → curry 𝑀 Fn 𝐼)
52 fnima 6048 . . . . . . . . . . . . . . . 16 (curry 𝑀 Fn 𝐼 → (curry 𝑀𝐼) = ran curry 𝑀)
5351, 52syl 17 . . . . . . . . . . . . . . 15 (curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼) → (curry 𝑀𝐼) = ran curry 𝑀)
5453adantl 481 . . . . . . . . . . . . . 14 (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) → (curry 𝑀𝐼) = ran curry 𝑀)
5554fveq2d 6233 . . . . . . . . . . . . 13 (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) → ((LSpan‘(𝑅 freeLMod 𝐼))‘(curry 𝑀𝐼)) = ((LSpan‘(𝑅 freeLMod 𝐼))‘ran curry 𝑀))
5655adantr 480 . . . . . . . . . . . 12 ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → ((LSpan‘(𝑅 freeLMod 𝐼))‘(curry 𝑀𝐼)) = ((LSpan‘(𝑅 freeLMod 𝐼))‘ran curry 𝑀))
57 simplll 813 . . . . . . . . . . . . . 14 ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → 𝑅 ∈ DivRing)
58 simpllr 815 . . . . . . . . . . . . . 14 ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → 𝐼 ∈ Fin)
5945frlmlmod 20141 . . . . . . . . . . . . . . . . 17 ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → (𝑅 freeLMod 𝐼) ∈ LMod)
6043, 59sylan 487 . . . . . . . . . . . . . . . 16 ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → (𝑅 freeLMod 𝐼) ∈ LMod)
6160adantr 480 . . . . . . . . . . . . . . 15 (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) → (𝑅 freeLMod 𝐼) ∈ LMod)
62 lindfrn 20208 . . . . . . . . . . . . . . 15 (((𝑅 freeLMod 𝐼) ∈ LMod ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → ran curry 𝑀 ∈ (LIndS‘(𝑅 freeLMod 𝐼)))
6361, 62sylan 487 . . . . . . . . . . . . . 14 ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → ran curry 𝑀 ∈ (LIndS‘(𝑅 freeLMod 𝐼)))
6445frlmsca 20145 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → 𝑅 = (Scalar‘(𝑅 freeLMod 𝐼)))
65 drngnzr 19310 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑅 ∈ DivRing → 𝑅 ∈ NzRing)
6665adantr 480 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → 𝑅 ∈ NzRing)
6764, 66eqeltrrd 2731 . . . . . . . . . . . . . . . . . . . . 21 ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → (Scalar‘(𝑅 freeLMod 𝐼)) ∈ NzRing)
6860, 67jca 553 . . . . . . . . . . . . . . . . . . . 20 ((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) → ((𝑅 freeLMod 𝐼) ∈ LMod ∧ (Scalar‘(𝑅 freeLMod 𝐼)) ∈ NzRing))
69 eqid 2651 . . . . . . . . . . . . . . . . . . . . . 22 (Scalar‘(𝑅 freeLMod 𝐼)) = (Scalar‘(𝑅 freeLMod 𝐼))
7046, 69lindff1 20207 . . . . . . . . . . . . . . . . . . . . 21 (((𝑅 freeLMod 𝐼) ∈ LMod ∧ (Scalar‘(𝑅 freeLMod 𝐼)) ∈ NzRing ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → curry 𝑀:dom curry 𝑀1-1→(Base‘(𝑅 freeLMod 𝐼)))
71703expa 1284 . . . . . . . . . . . . . . . . . . . 20 ((((𝑅 freeLMod 𝐼) ∈ LMod ∧ (Scalar‘(𝑅 freeLMod 𝐼)) ∈ NzRing) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → curry 𝑀:dom curry 𝑀1-1→(Base‘(𝑅 freeLMod 𝐼)))
7268, 71sylan 487 . . . . . . . . . . . . . . . . . . 19 (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → curry 𝑀:dom curry 𝑀1-1→(Base‘(𝑅 freeLMod 𝐼)))
73 fdm 6089 . . . . . . . . . . . . . . . . . . 19 (curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼) → dom curry 𝑀 = 𝐼)
74 f1eq2 6135 . . . . . . . . . . . . . . . . . . . 20 (dom curry 𝑀 = 𝐼 → (curry 𝑀:dom curry 𝑀1-1→(Base‘(𝑅 freeLMod 𝐼)) ↔ curry 𝑀:𝐼1-1→(Base‘(𝑅 freeLMod 𝐼))))
7574biimpac 502 . . . . . . . . . . . . . . . . . . 19 ((curry 𝑀:dom curry 𝑀1-1→(Base‘(𝑅 freeLMod 𝐼)) ∧ dom curry 𝑀 = 𝐼) → curry 𝑀:𝐼1-1→(Base‘(𝑅 freeLMod 𝐼)))
7672, 73, 75syl2an 493 . . . . . . . . . . . . . . . . . 18 ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) → curry 𝑀:𝐼1-1→(Base‘(𝑅 freeLMod 𝐼)))
7776an32s 863 . . . . . . . . . . . . . . . . 17 ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → curry 𝑀:𝐼1-1→(Base‘(𝑅 freeLMod 𝐼)))
78 f1f1orn 6186 . . . . . . . . . . . . . . . . 17 (curry 𝑀:𝐼1-1→(Base‘(𝑅 freeLMod 𝐼)) → curry 𝑀:𝐼1-1-onto→ran curry 𝑀)
7977, 78syl 17 . . . . . . . . . . . . . . . 16 ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → curry 𝑀:𝐼1-1-onto→ran curry 𝑀)
80 f1oeng 8016 . . . . . . . . . . . . . . . 16 ((𝐼 ∈ Fin ∧ curry 𝑀:𝐼1-1-onto→ran curry 𝑀) → 𝐼 ≈ ran curry 𝑀)
8158, 79, 80syl2anc 694 . . . . . . . . . . . . . . 15 ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → 𝐼 ≈ ran curry 𝑀)
8281ensymd 8048 . . . . . . . . . . . . . 14 ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → ran curry 𝑀𝐼)
83 lindsenlbs 33534 . . . . . . . . . . . . . 14 (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin ∧ ran curry 𝑀 ∈ (LIndS‘(𝑅 freeLMod 𝐼))) ∧ ran curry 𝑀𝐼) → ran curry 𝑀 ∈ (LBasis‘(𝑅 freeLMod 𝐼)))
8457, 58, 63, 82, 83syl31anc 1369 . . . . . . . . . . . . 13 ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → ran curry 𝑀 ∈ (LBasis‘(𝑅 freeLMod 𝐼)))
85 eqid 2651 . . . . . . . . . . . . . 14 (LBasis‘(𝑅 freeLMod 𝐼)) = (LBasis‘(𝑅 freeLMod 𝐼))
86 eqid 2651 . . . . . . . . . . . . . 14 (LSpan‘(𝑅 freeLMod 𝐼)) = (LSpan‘(𝑅 freeLMod 𝐼))
8746, 85, 86lbssp 19127 . . . . . . . . . . . . 13 (ran curry 𝑀 ∈ (LBasis‘(𝑅 freeLMod 𝐼)) → ((LSpan‘(𝑅 freeLMod 𝐼))‘ran curry 𝑀) = (Base‘(𝑅 freeLMod 𝐼)))
8884, 87syl 17 . . . . . . . . . . . 12 ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → ((LSpan‘(𝑅 freeLMod 𝐼))‘ran curry 𝑀) = (Base‘(𝑅 freeLMod 𝐼)))
8956, 88eqtrd 2685 . . . . . . . . . . 11 ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → ((LSpan‘(𝑅 freeLMod 𝐼))‘(curry 𝑀𝐼)) = (Base‘(𝑅 freeLMod 𝐼)))
9089adantr 480 . . . . . . . . . 10 (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) ∧ 𝑖𝐼) → ((LSpan‘(𝑅 freeLMod 𝐼))‘(curry 𝑀𝐼)) = (Base‘(𝑅 freeLMod 𝐼)))
9150, 90eleqtrrd 2733 . . . . . . . . 9 (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) ∧ 𝑖𝐼) → ((𝑅 unitVec 𝐼)‘𝑖) ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(curry 𝑀𝐼)))
92 eqid 2651 . . . . . . . . . . . . 13 (Base‘(Scalar‘(𝑅 freeLMod 𝐼))) = (Base‘(Scalar‘(𝑅 freeLMod 𝐼)))
93 eqid 2651 . . . . . . . . . . . . 13 (0g‘(Scalar‘(𝑅 freeLMod 𝐼))) = (0g‘(Scalar‘(𝑅 freeLMod 𝐼)))
94 eqid 2651 . . . . . . . . . . . . 13 ( ·𝑠 ‘(𝑅 freeLMod 𝐼)) = ( ·𝑠 ‘(𝑅 freeLMod 𝐼))
9545, 14frlmfibas 20153 . . . . . . . . . . . . . . 15 ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → ((Base‘𝑅) ↑𝑚 𝐼) = (Base‘(𝑅 freeLMod 𝐼)))
9695feq3d 6070 . . . . . . . . . . . . . 14 ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → (curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼) ↔ curry 𝑀:𝐼⟶(Base‘(𝑅 freeLMod 𝐼))))
9796biimpa 500 . . . . . . . . . . . . 13 (((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) → curry 𝑀:𝐼⟶(Base‘(𝑅 freeLMod 𝐼)))
9859adantr 480 . . . . . . . . . . . . 13 (((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) → (𝑅 freeLMod 𝐼) ∈ LMod)
99 simplr 807 . . . . . . . . . . . . 13 (((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) → 𝐼 ∈ Fin)
10086, 46, 92, 69, 93, 94, 97, 98, 99elfilspd 20190 . . . . . . . . . . . 12 (((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) → (((𝑅 unitVec 𝐼)‘𝑖) ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(curry 𝑀𝐼)) ↔ ∃𝑛 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = ((𝑅 freeLMod 𝐼) Σg (𝑛𝑓 ( ·𝑠 ‘(𝑅 freeLMod 𝐼))curry 𝑀))))
10145frlmsca 20145 . . . . . . . . . . . . . . . 16 ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → 𝑅 = (Scalar‘(𝑅 freeLMod 𝐼)))
102101fveq2d 6233 . . . . . . . . . . . . . . 15 ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → (Base‘𝑅) = (Base‘(Scalar‘(𝑅 freeLMod 𝐼))))
103102oveq1d 6705 . . . . . . . . . . . . . 14 ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → ((Base‘𝑅) ↑𝑚 𝐼) = ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ↑𝑚 𝐼))
104103adantr 480 . . . . . . . . . . . . 13 (((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) → ((Base‘𝑅) ↑𝑚 𝐼) = ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ↑𝑚 𝐼))
105 elmapi 7921 . . . . . . . . . . . . . . 15 (𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼) → 𝑛:𝐼⟶(Base‘𝑅))
106 ffn 6083 . . . . . . . . . . . . . . . . . . . 20 (𝑛:𝐼⟶(Base‘𝑅) → 𝑛 Fn 𝐼)
107106adantl 481 . . . . . . . . . . . . . . . . . . 19 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) → 𝑛 Fn 𝐼)
10851ad2antlr 763 . . . . . . . . . . . . . . . . . . 19 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) → curry 𝑀 Fn 𝐼)
109 simpllr 815 . . . . . . . . . . . . . . . . . . 19 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) → 𝐼 ∈ Fin)
110 inidm 3855 . . . . . . . . . . . . . . . . . . 19 (𝐼𝐼) = 𝐼
111 eqidd 2652 . . . . . . . . . . . . . . . . . . 19 (((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) → (𝑛𝑘) = (𝑛𝑘))
112 eqidd 2652 . . . . . . . . . . . . . . . . . . 19 (((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) → (curry 𝑀𝑘) = (curry 𝑀𝑘))
113107, 108, 109, 109, 110, 111, 112offval 6946 . . . . . . . . . . . . . . . . . 18 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) → (𝑛𝑓 ( ·𝑠 ‘(𝑅 freeLMod 𝐼))curry 𝑀) = (𝑘𝐼 ↦ ((𝑛𝑘)( ·𝑠 ‘(𝑅 freeLMod 𝐼))(curry 𝑀𝑘))))
114 simp-4r 824 . . . . . . . . . . . . . . . . . . . . 21 (((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) → 𝐼 ∈ Fin)
115 ffvelrn 6397 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑛:𝐼⟶(Base‘𝑅) ∧ 𝑘𝐼) → (𝑛𝑘) ∈ (Base‘𝑅))
116115adantll 750 . . . . . . . . . . . . . . . . . . . . 21 (((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) → (𝑛𝑘) ∈ (Base‘𝑅))
117 ffvelrn 6397 . . . . . . . . . . . . . . . . . . . . . . 23 ((curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼) ∧ 𝑘𝐼) → (curry 𝑀𝑘) ∈ ((Base‘𝑅) ↑𝑚 𝐼))
118117ad4ant24 1327 . . . . . . . . . . . . . . . . . . . . . 22 (((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) → (curry 𝑀𝑘) ∈ ((Base‘𝑅) ↑𝑚 𝐼))
11995ad3antrrr 766 . . . . . . . . . . . . . . . . . . . . . 22 (((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) → ((Base‘𝑅) ↑𝑚 𝐼) = (Base‘(𝑅 freeLMod 𝐼)))
120118, 119eleqtrd 2732 . . . . . . . . . . . . . . . . . . . . 21 (((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) → (curry 𝑀𝑘) ∈ (Base‘(𝑅 freeLMod 𝐼)))
121 eqid 2651 . . . . . . . . . . . . . . . . . . . . 21 (.r𝑅) = (.r𝑅)
12245, 46, 14, 114, 116, 120, 94, 121frlmvscafval 20157 . . . . . . . . . . . . . . . . . . . 20 (((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) → ((𝑛𝑘)( ·𝑠 ‘(𝑅 freeLMod 𝐼))(curry 𝑀𝑘)) = ((𝐼 × {(𝑛𝑘)}) ∘𝑓 (.r𝑅)(curry 𝑀𝑘)))
123 fvex 6239 . . . . . . . . . . . . . . . . . . . . . 22 (𝑛𝑘) ∈ V
124 fnconstg 6131 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑛𝑘) ∈ V → (𝐼 × {(𝑛𝑘)}) Fn 𝐼)
125123, 124mp1i 13 . . . . . . . . . . . . . . . . . . . . 21 (((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) → (𝐼 × {(𝑛𝑘)}) Fn 𝐼)
126 elmapfn 7922 . . . . . . . . . . . . . . . . . . . . . . 23 ((curry 𝑀𝑘) ∈ ((Base‘𝑅) ↑𝑚 𝐼) → (curry 𝑀𝑘) Fn 𝐼)
127117, 126syl 17 . . . . . . . . . . . . . . . . . . . . . 22 ((curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼) ∧ 𝑘𝐼) → (curry 𝑀𝑘) Fn 𝐼)
128127ad4ant24 1327 . . . . . . . . . . . . . . . . . . . . 21 (((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) → (curry 𝑀𝑘) Fn 𝐼)
129123fvconst2 6510 . . . . . . . . . . . . . . . . . . . . . 22 (𝑗𝐼 → ((𝐼 × {(𝑛𝑘)})‘𝑗) = (𝑛𝑘))
130129adantl 481 . . . . . . . . . . . . . . . . . . . . 21 ((((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) ∧ 𝑗𝐼) → ((𝐼 × {(𝑛𝑘)})‘𝑗) = (𝑛𝑘))
131 eqidd 2652 . . . . . . . . . . . . . . . . . . . . 21 ((((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) ∧ 𝑗𝐼) → ((curry 𝑀𝑘)‘𝑗) = ((curry 𝑀𝑘)‘𝑗))
132125, 128, 114, 114, 110, 130, 131offval 6946 . . . . . . . . . . . . . . . . . . . 20 (((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) → ((𝐼 × {(𝑛𝑘)}) ∘𝑓 (.r𝑅)(curry 𝑀𝑘)) = (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))
133122, 132eqtrd 2685 . . . . . . . . . . . . . . . . . . 19 (((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) → ((𝑛𝑘)( ·𝑠 ‘(𝑅 freeLMod 𝐼))(curry 𝑀𝑘)) = (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))
134133mpteq2dva 4777 . . . . . . . . . . . . . . . . . 18 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) → (𝑘𝐼 ↦ ((𝑛𝑘)( ·𝑠 ‘(𝑅 freeLMod 𝐼))(curry 𝑀𝑘))) = (𝑘𝐼 ↦ (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗)))))
135113, 134eqtrd 2685 . . . . . . . . . . . . . . . . 17 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) → (𝑛𝑓 ( ·𝑠 ‘(𝑅 freeLMod 𝐼))curry 𝑀) = (𝑘𝐼 ↦ (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗)))))
136135oveq2d 6706 . . . . . . . . . . . . . . . 16 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) → ((𝑅 freeLMod 𝐼) Σg (𝑛𝑓 ( ·𝑠 ‘(𝑅 freeLMod 𝐼))curry 𝑀)) = ((𝑅 freeLMod 𝐼) Σg (𝑘𝐼 ↦ (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))))
137 eqid 2651 . . . . . . . . . . . . . . . . 17 (0g‘(𝑅 freeLMod 𝐼)) = (0g‘(𝑅 freeLMod 𝐼))
138 simplll 813 . . . . . . . . . . . . . . . . 17 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) → 𝑅 ∈ Ring)
139 simp-5l 825 . . . . . . . . . . . . . . . . . . . 20 ((((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) ∧ 𝑗𝐼) → 𝑅 ∈ Ring)
140115ad4ant23 1325 . . . . . . . . . . . . . . . . . . . 20 ((((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) ∧ 𝑗𝐼) → (𝑛𝑘) ∈ (Base‘𝑅))
141 simplr 807 . . . . . . . . . . . . . . . . . . . . 21 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) → curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼))
142 elmapi 7921 . . . . . . . . . . . . . . . . . . . . . . 23 ((curry 𝑀𝑘) ∈ ((Base‘𝑅) ↑𝑚 𝐼) → (curry 𝑀𝑘):𝐼⟶(Base‘𝑅))
143117, 142syl 17 . . . . . . . . . . . . . . . . . . . . . 22 ((curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼) ∧ 𝑘𝐼) → (curry 𝑀𝑘):𝐼⟶(Base‘𝑅))
144143ffvelrnda 6399 . . . . . . . . . . . . . . . . . . . . 21 (((curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼) ∧ 𝑘𝐼) ∧ 𝑗𝐼) → ((curry 𝑀𝑘)‘𝑗) ∈ (Base‘𝑅))
145141, 144sylanl1 683 . . . . . . . . . . . . . . . . . . . 20 ((((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) ∧ 𝑗𝐼) → ((curry 𝑀𝑘)‘𝑗) ∈ (Base‘𝑅))
14614, 121ringcl 18607 . . . . . . . . . . . . . . . . . . . 20 ((𝑅 ∈ Ring ∧ (𝑛𝑘) ∈ (Base‘𝑅) ∧ ((curry 𝑀𝑘)‘𝑗) ∈ (Base‘𝑅)) → ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗)) ∈ (Base‘𝑅))
147139, 140, 145, 146syl3anc 1366 . . . . . . . . . . . . . . . . . . 19 ((((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) ∧ 𝑗𝐼) → ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗)) ∈ (Base‘𝑅))
148 eqid 2651 . . . . . . . . . . . . . . . . . . 19 (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))) = (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗)))
149147, 148fmptd 6425 . . . . . . . . . . . . . . . . . 18 (((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) → (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))):𝐼⟶(Base‘𝑅))
150 elmapg 7912 . . . . . . . . . . . . . . . . . . . . . 22 (((Base‘𝑅) ∈ V ∧ 𝐼 ∈ Fin) → ((𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))) ∈ ((Base‘𝑅) ↑𝑚 𝐼) ↔ (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))):𝐼⟶(Base‘𝑅)))
15122, 150mpan 706 . . . . . . . . . . . . . . . . . . . . 21 (𝐼 ∈ Fin → ((𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))) ∈ ((Base‘𝑅) ↑𝑚 𝐼) ↔ (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))):𝐼⟶(Base‘𝑅)))
152151adantl 481 . . . . . . . . . . . . . . . . . . . 20 ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → ((𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))) ∈ ((Base‘𝑅) ↑𝑚 𝐼) ↔ (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))):𝐼⟶(Base‘𝑅)))
15395eleq2d 2716 . . . . . . . . . . . . . . . . . . . 20 ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → ((𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))) ∈ ((Base‘𝑅) ↑𝑚 𝐼) ↔ (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))) ∈ (Base‘(𝑅 freeLMod 𝐼))))
154152, 153bitr3d 270 . . . . . . . . . . . . . . . . . . 19 ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → ((𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))):𝐼⟶(Base‘𝑅) ↔ (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))) ∈ (Base‘(𝑅 freeLMod 𝐼))))
155154ad3antrrr 766 . . . . . . . . . . . . . . . . . 18 (((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) → ((𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))):𝐼⟶(Base‘𝑅) ↔ (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))) ∈ (Base‘(𝑅 freeLMod 𝐼))))
156149, 155mpbid 222 . . . . . . . . . . . . . . . . 17 (((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) ∧ 𝑘𝐼) → (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))) ∈ (Base‘(𝑅 freeLMod 𝐼)))
157 mptexg 6525 . . . . . . . . . . . . . . . . . . . . 21 (𝐼 ∈ Fin → (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))) ∈ V)
158157ralrimivw 2996 . . . . . . . . . . . . . . . . . . . 20 (𝐼 ∈ Fin → ∀𝑘𝐼 (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))) ∈ V)
159 eqid 2651 . . . . . . . . . . . . . . . . . . . . 21 (𝑘𝐼 ↦ (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗)))) = (𝑘𝐼 ↦ (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))
160159fnmpt 6058 . . . . . . . . . . . . . . . . . . . 20 (∀𝑘𝐼 (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))) ∈ V → (𝑘𝐼 ↦ (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗)))) Fn 𝐼)
161158, 160syl 17 . . . . . . . . . . . . . . . . . . 19 (𝐼 ∈ Fin → (𝑘𝐼 ↦ (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗)))) Fn 𝐼)
162 id 22 . . . . . . . . . . . . . . . . . . 19 (𝐼 ∈ Fin → 𝐼 ∈ Fin)
163 fvexd 6241 . . . . . . . . . . . . . . . . . . 19 (𝐼 ∈ Fin → (0g‘(𝑅 freeLMod 𝐼)) ∈ V)
164161, 162, 163fndmfifsupp 8329 . . . . . . . . . . . . . . . . . 18 (𝐼 ∈ Fin → (𝑘𝐼 ↦ (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗)))) finSupp (0g‘(𝑅 freeLMod 𝐼)))
165164ad3antlr 767 . . . . . . . . . . . . . . . . 17 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) → (𝑘𝐼 ↦ (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗)))) finSupp (0g‘(𝑅 freeLMod 𝐼)))
16645, 46, 137, 109, 109, 138, 156, 165frlmgsum 20159 . . . . . . . . . . . . . . . 16 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) → ((𝑅 freeLMod 𝐼) Σg (𝑘𝐼 ↦ (𝑗𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))))
167136, 166eqtr2d 2686 . . . . . . . . . . . . . . 15 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛:𝐼⟶(Base‘𝑅)) → (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))) = ((𝑅 freeLMod 𝐼) Σg (𝑛𝑓 ( ·𝑠 ‘(𝑅 freeLMod 𝐼))curry 𝑀)))
168105, 167sylan2 490 . . . . . . . . . . . . . 14 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)) → (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))) = ((𝑅 freeLMod 𝐼) Σg (𝑛𝑓 ( ·𝑠 ‘(𝑅 freeLMod 𝐼))curry 𝑀)))
169168eqeq2d 2661 . . . . . . . . . . . . 13 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ 𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)) → (((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))) ↔ ((𝑅 unitVec 𝐼)‘𝑖) = ((𝑅 freeLMod 𝐼) Σg (𝑛𝑓 ( ·𝑠 ‘(𝑅 freeLMod 𝐼))curry 𝑀))))
170104, 169rexeqbidva 3185 . . . . . . . . . . . 12 (((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) → (∃𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))) ↔ ∃𝑛 ∈ ((Base‘(Scalar‘(𝑅 freeLMod 𝐼))) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = ((𝑅 freeLMod 𝐼) Σg (𝑛𝑓 ( ·𝑠 ‘(𝑅 freeLMod 𝐼))curry 𝑀))))
171100, 170bitr4d 271 . . . . . . . . . . 11 (((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) → (((𝑅 unitVec 𝐼)‘𝑖) ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(curry 𝑀𝐼)) ↔ ∃𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗)))))))
17243, 171sylanl1 683 . . . . . . . . . 10 (((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) → (((𝑅 unitVec 𝐼)‘𝑖) ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(curry 𝑀𝐼)) ↔ ∃𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗)))))))
173172ad2antrr 762 . . . . . . . . 9 (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) ∧ 𝑖𝐼) → (((𝑅 unitVec 𝐼)‘𝑖) ∈ ((LSpan‘(𝑅 freeLMod 𝐼))‘(curry 𝑀𝐼)) ↔ ∃𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗)))))))
17491, 173mpbid 222 . . . . . . . 8 (((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) ∧ 𝑖𝐼) → ∃𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))))
175174ralrimiva 2995 . . . . . . 7 ((((𝑅 ∈ DivRing ∧ 𝐼 ∈ Fin) ∧ curry 𝑀:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼)) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → ∀𝑖𝐼𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))))
17642, 175sylan 487 . . . . . 6 ((((𝑅 ∈ DivRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝐼 ≠ ∅) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → ∀𝑖𝐼𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))))
17710, 21mpbird 247 . . . . . . . . 9 ((𝑅 ∈ DivRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → 𝑀 ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)))
178 elmapfn 7922 . . . . . . . . 9 (𝑀 ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) → 𝑀 Fn (𝐼 × 𝐼))
179177, 178syl 17 . . . . . . . 8 ((𝑅 ∈ DivRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → 𝑀 Fn (𝐼 × 𝐼))
1804adantl 481 . . . . . . . 8 ((𝑅 ∈ DivRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → 𝐼 ∈ Fin)
181 an32 856 . . . . . . . . . . . . . . . . . . 19 (((𝑀 Fn (𝐼 × 𝐼) ∧ 𝑗𝐼) ∧ 𝑘𝐼) ↔ ((𝑀 Fn (𝐼 × 𝐼) ∧ 𝑘𝐼) ∧ 𝑗𝐼))
182 df-3an 1056 . . . . . . . . . . . . . . . . . . 19 ((𝑀 Fn (𝐼 × 𝐼) ∧ 𝑘𝐼𝑗𝐼) ↔ ((𝑀 Fn (𝐼 × 𝐼) ∧ 𝑘𝐼) ∧ 𝑗𝐼))
183181, 182bitr4i 267 . . . . . . . . . . . . . . . . . 18 (((𝑀 Fn (𝐼 × 𝐼) ∧ 𝑗𝐼) ∧ 𝑘𝐼) ↔ (𝑀 Fn (𝐼 × 𝐼) ∧ 𝑘𝐼𝑗𝐼))
184 curfv 33519 . . . . . . . . . . . . . . . . . 18 (((𝑀 Fn (𝐼 × 𝐼) ∧ 𝑘𝐼𝑗𝐼) ∧ 𝐼 ∈ Fin) → ((curry 𝑀𝑘)‘𝑗) = (𝑘𝑀𝑗))
185183, 184sylanb 488 . . . . . . . . . . . . . . . . 17 ((((𝑀 Fn (𝐼 × 𝐼) ∧ 𝑗𝐼) ∧ 𝑘𝐼) ∧ 𝐼 ∈ Fin) → ((curry 𝑀𝑘)‘𝑗) = (𝑘𝑀𝑗))
186185an32s 863 . . . . . . . . . . . . . . . 16 ((((𝑀 Fn (𝐼 × 𝐼) ∧ 𝑗𝐼) ∧ 𝐼 ∈ Fin) ∧ 𝑘𝐼) → ((curry 𝑀𝑘)‘𝑗) = (𝑘𝑀𝑗))
187186oveq2d 6706 . . . . . . . . . . . . . . 15 ((((𝑀 Fn (𝐼 × 𝐼) ∧ 𝑗𝐼) ∧ 𝐼 ∈ Fin) ∧ 𝑘𝐼) → ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗)) = ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗)))
188187mpteq2dva 4777 . . . . . . . . . . . . . 14 (((𝑀 Fn (𝐼 × 𝐼) ∧ 𝑗𝐼) ∧ 𝐼 ∈ Fin) → (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))) = (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗))))
189188an32s 863 . . . . . . . . . . . . 13 (((𝑀 Fn (𝐼 × 𝐼) ∧ 𝐼 ∈ Fin) ∧ 𝑗𝐼) → (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))) = (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗))))
190189oveq2d 6706 . . . . . . . . . . . 12 (((𝑀 Fn (𝐼 × 𝐼) ∧ 𝐼 ∈ Fin) ∧ 𝑗𝐼) → (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗)))) = (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗)))))
191190mpteq2dva 4777 . . . . . . . . . . 11 ((𝑀 Fn (𝐼 × 𝐼) ∧ 𝐼 ∈ Fin) → (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗))))))
192191eqeq2d 2661 . . . . . . . . . 10 ((𝑀 Fn (𝐼 × 𝐼) ∧ 𝐼 ∈ Fin) → (((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))) ↔ ((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗)))))))
193192rexbidv 3081 . . . . . . . . 9 ((𝑀 Fn (𝐼 × 𝐼) ∧ 𝐼 ∈ Fin) → (∃𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))) ↔ ∃𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗)))))))
194193ralbidv 3015 . . . . . . . 8 ((𝑀 Fn (𝐼 × 𝐼) ∧ 𝐼 ∈ Fin) → (∀𝑖𝐼𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))) ↔ ∀𝑖𝐼𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗)))))))
195179, 180, 194syl2anc 694 . . . . . . 7 ((𝑅 ∈ DivRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → (∀𝑖𝐼𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))) ↔ ∀𝑖𝐼𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗)))))))
196195ad2antrr 762 . . . . . 6 ((((𝑅 ∈ DivRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝐼 ≠ ∅) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → (∀𝑖𝐼𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)((curry 𝑀𝑘)‘𝑗))))) ↔ ∀𝑖𝐼𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗)))))))
197176, 196mpbid 222 . . . . 5 ((((𝑅 ∈ DivRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝐼 ≠ ∅) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → ∀𝑖𝐼𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗))))))
1988, 197sylanl1 683 . . . 4 ((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝐼 ≠ ∅) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → ∀𝑖𝐼𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗))))))
199 fveq1 6228 . . . . . . . . . . 11 (𝑛 = (𝑓𝑖) → (𝑛𝑘) = ((𝑓𝑖)‘𝑘))
200 vex 3234 . . . . . . . . . . . 12 𝑖 ∈ V
201 vex 3234 . . . . . . . . . . . 12 𝑘 ∈ V
202 uncov 33520 . . . . . . . . . . . 12 ((𝑖 ∈ V ∧ 𝑘 ∈ V) → (𝑖uncurry 𝑓𝑘) = ((𝑓𝑖)‘𝑘))
203200, 201, 202mp2an 708 . . . . . . . . . . 11 (𝑖uncurry 𝑓𝑘) = ((𝑓𝑖)‘𝑘)
204199, 203syl6eqr 2703 . . . . . . . . . 10 (𝑛 = (𝑓𝑖) → (𝑛𝑘) = (𝑖uncurry 𝑓𝑘))
205204oveq1d 6705 . . . . . . . . 9 (𝑛 = (𝑓𝑖) → ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗)) = ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))
206205mpteq2dv 4778 . . . . . . . 8 (𝑛 = (𝑓𝑖) → (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗))) = (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗))))
207206oveq2d 6706 . . . . . . 7 (𝑛 = (𝑓𝑖) → (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗)))) = (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))
208207mpteq2dv 4778 . . . . . 6 (𝑛 = (𝑓𝑖) → (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗))))) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗))))))
209208eqeq2d 2661 . . . . 5 (𝑛 = (𝑓𝑖) → (((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗))))) ↔ ((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))))
210209ac6sfi 8245 . . . 4 ((𝐼 ∈ Fin ∧ ∀𝑖𝐼𝑛 ∈ ((Base‘𝑅) ↑𝑚 𝐼)((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑛𝑘)(.r𝑅)(𝑘𝑀𝑗)))))) → ∃𝑓(𝑓:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼) ∧ ∀𝑖𝐼 ((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))))
2115, 198, 210syl2anc 694 . . 3 ((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝐼 ≠ ∅) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → ∃𝑓(𝑓:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼) ∧ ∀𝑖𝐼 ((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))))
212 uncf 33518 . . . . . . 7 (𝑓:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼) → uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅))
21313, 14frlmfibas 20153 . . . . . . . . . . . . . . . 16 ((𝑅 ∈ Field ∧ (𝐼 × 𝐼) ∈ Fin) → ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) = (Base‘(𝑅 freeLMod (𝐼 × 𝐼))))
21412, 213sylan2 490 . . . . . . . . . . . . . . 15 ((𝑅 ∈ Field ∧ 𝐼 ∈ Fin) → ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) = (Base‘(𝑅 freeLMod (𝐼 × 𝐼))))
2151, 13matbas 20267 . . . . . . . . . . . . . . . 16 ((𝐼 ∈ Fin ∧ 𝑅 ∈ Field) → (Base‘(𝑅 freeLMod (𝐼 × 𝐼))) = (Base‘(𝐼 Mat 𝑅)))
216215ancoms 468 . . . . . . . . . . . . . . 15 ((𝑅 ∈ Field ∧ 𝐼 ∈ Fin) → (Base‘(𝑅 freeLMod (𝐼 × 𝐼))) = (Base‘(𝐼 Mat 𝑅)))
217214, 216eqtrd 2685 . . . . . . . . . . . . . 14 ((𝑅 ∈ Field ∧ 𝐼 ∈ Fin) → ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) = (Base‘(𝐼 Mat 𝑅)))
2184, 217sylan2 490 . . . . . . . . . . . . 13 ((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) = (Base‘(𝐼 Mat 𝑅)))
219218eleq2d 2716 . . . . . . . . . . . 12 ((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → (uncurry 𝑓 ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) ↔ uncurry 𝑓 ∈ (Base‘(𝐼 Mat 𝑅))))
220 elmapg 7912 . . . . . . . . . . . . . 14 (((Base‘𝑅) ∈ V ∧ (𝐼 × 𝐼) ∈ Fin) → (uncurry 𝑓 ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) ↔ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)))
22122, 23, 220sylancr 696 . . . . . . . . . . . . 13 (𝑀 ∈ (Base‘(𝐼 Mat 𝑅)) → (uncurry 𝑓 ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) ↔ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)))
222221adantl 481 . . . . . . . . . . . 12 ((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → (uncurry 𝑓 ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) ↔ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)))
223219, 222bitr3d 270 . . . . . . . . . . 11 ((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → (uncurry 𝑓 ∈ (Base‘(𝐼 Mat 𝑅)) ↔ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)))
224223biimpar 501 . . . . . . . . . 10 (((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) → uncurry 𝑓 ∈ (Base‘(𝐼 Mat 𝑅)))
225224adantr 480 . . . . . . . . 9 ((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ ∀𝑖𝐼 ((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))) → uncurry 𝑓 ∈ (Base‘(𝐼 Mat 𝑅)))
226 nfv 1883 . . . . . . . . . . . . . 14 𝑗(((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ 𝑖𝐼)
227 nfmpt1 4780 . . . . . . . . . . . . . . 15 𝑗(𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))
228227nfeq2 2809 . . . . . . . . . . . . . 14 𝑗((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))
229 fveq1 6228 . . . . . . . . . . . . . . . . 17 (((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗))))) → (((𝑅 unitVec 𝐼)‘𝑖)‘𝑗) = ((𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))‘𝑗))
2307, 43syl 17 . . . . . . . . . . . . . . . . . . . . 21 (𝑅 ∈ Field → 𝑅 ∈ Ring)
231230, 4anim12i 589 . . . . . . . . . . . . . . . . . . . 20 ((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → (𝑅 ∈ Ring ∧ 𝐼 ∈ Fin))
232231adantr 480 . . . . . . . . . . . . . . . . . . 19 (((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) → (𝑅 ∈ Ring ∧ 𝐼 ∈ Fin))
233 equcom 1991 . . . . . . . . . . . . . . . . . . . . 21 (𝑖 = 𝑗𝑗 = 𝑖)
234 ifbi 4140 . . . . . . . . . . . . . . . . . . . . 21 ((𝑖 = 𝑗𝑗 = 𝑖) → if(𝑖 = 𝑗, (1r𝑅), (0g𝑅)) = if(𝑗 = 𝑖, (1r𝑅), (0g𝑅)))
235233, 234ax-mp 5 . . . . . . . . . . . . . . . . . . . 20 if(𝑖 = 𝑗, (1r𝑅), (0g𝑅)) = if(𝑗 = 𝑖, (1r𝑅), (0g𝑅))
236 eqid 2651 . . . . . . . . . . . . . . . . . . . . 21 (1r𝑅) = (1r𝑅)
237 eqid 2651 . . . . . . . . . . . . . . . . . . . . 21 (0g𝑅) = (0g𝑅)
238 simpllr 815 . . . . . . . . . . . . . . . . . . . . 21 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → 𝐼 ∈ Fin)
239 simplll 813 . . . . . . . . . . . . . . . . . . . . 21 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → 𝑅 ∈ Ring)
240 simplr 807 . . . . . . . . . . . . . . . . . . . . 21 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → 𝑖𝐼)
241 simpr 476 . . . . . . . . . . . . . . . . . . . . 21 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → 𝑗𝐼)
242 eqid 2651 . . . . . . . . . . . . . . . . . . . . 21 (1r‘(𝐼 Mat 𝑅)) = (1r‘(𝐼 Mat 𝑅))
2431, 236, 237, 238, 239, 240, 241, 242mat1ov 20302 . . . . . . . . . . . . . . . . . . . 20 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → (𝑖(1r‘(𝐼 Mat 𝑅))𝑗) = if(𝑖 = 𝑗, (1r𝑅), (0g𝑅)))
244 df-3an 1056 . . . . . . . . . . . . . . . . . . . . 21 ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin ∧ 𝑖𝐼) ↔ ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ 𝑖𝐼))
24544, 236, 237uvcvval 20173 . . . . . . . . . . . . . . . . . . . . 21 (((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin ∧ 𝑖𝐼) ∧ 𝑗𝐼) → (((𝑅 unitVec 𝐼)‘𝑖)‘𝑗) = if(𝑗 = 𝑖, (1r𝑅), (0g𝑅)))
246244, 245sylanbr 489 . . . . . . . . . . . . . . . . . . . 20 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → (((𝑅 unitVec 𝐼)‘𝑖)‘𝑗) = if(𝑗 = 𝑖, (1r𝑅), (0g𝑅)))
247235, 243, 2463eqtr4a 2711 . . . . . . . . . . . . . . . . . . 19 ((((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → (𝑖(1r‘(𝐼 Mat 𝑅))𝑗) = (((𝑅 unitVec 𝐼)‘𝑖)‘𝑗))
248232, 247sylanl1 683 . . . . . . . . . . . . . . . . . 18 (((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → (𝑖(1r‘(𝐼 Mat 𝑅))𝑗) = (((𝑅 unitVec 𝐼)‘𝑖)‘𝑗))
249 ovex 6718 . . . . . . . . . . . . . . . . . . . . 21 (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))) ∈ V
250 eqid 2651 . . . . . . . . . . . . . . . . . . . . . 22 (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗))))) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))
251250fvmpt2 6330 . . . . . . . . . . . . . . . . . . . . 21 ((𝑗𝐼 ∧ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))) ∈ V) → ((𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))‘𝑗) = (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))
252249, 251mpan2 707 . . . . . . . . . . . . . . . . . . . 20 (𝑗𝐼 → ((𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))‘𝑗) = (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))
253252adantl 481 . . . . . . . . . . . . . . . . . . 19 (((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → ((𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))‘𝑗) = (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))
254 eqid 2651 . . . . . . . . . . . . . . . . . . . 20 (𝑅 maMul ⟨𝐼, 𝐼, 𝐼⟩) = (𝑅 maMul ⟨𝐼, 𝐼, 𝐼⟩)
255 simp-4l 823 . . . . . . . . . . . . . . . . . . . 20 (((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → 𝑅 ∈ Field)
2564ad4antlr 771 . . . . . . . . . . . . . . . . . . . 20 (((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → 𝐼 ∈ Fin)
257221biimpar 501 . . . . . . . . . . . . . . . . . . . . 21 ((𝑀 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) → uncurry 𝑓 ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)))
258257ad5ant23 1338 . . . . . . . . . . . . . . . . . . . 20 (((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → uncurry 𝑓 ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)))
259 simpr 476 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → 𝑀 ∈ (Base‘(𝐼 Mat 𝑅)))
260259, 218eleqtrrd 2733 . . . . . . . . . . . . . . . . . . . . 21 ((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → 𝑀 ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)))
261260ad3antrrr 766 . . . . . . . . . . . . . . . . . . . 20 (((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → 𝑀 ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)))
262 simplr 807 . . . . . . . . . . . . . . . . . . . 20 (((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → 𝑖𝐼)
263 simpr 476 . . . . . . . . . . . . . . . . . . . 20 (((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → 𝑗𝐼)
264254, 14, 121, 255, 256, 256, 256, 258, 261, 262, 263mamufv 20241 . . . . . . . . . . . . . . . . . . 19 (((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → (𝑖(uncurry 𝑓(𝑅 maMul ⟨𝐼, 𝐼, 𝐼⟩)𝑀)𝑗) = (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))
2651, 254matmulr 20292 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝐼 ∈ Fin ∧ 𝑅 ∈ Field) → (𝑅 maMul ⟨𝐼, 𝐼, 𝐼⟩) = (.r‘(𝐼 Mat 𝑅)))
266265ancoms 468 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑅 ∈ Field ∧ 𝐼 ∈ Fin) → (𝑅 maMul ⟨𝐼, 𝐼, 𝐼⟩) = (.r‘(𝐼 Mat 𝑅)))
267266oveqd 6707 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑅 ∈ Field ∧ 𝐼 ∈ Fin) → (uncurry 𝑓(𝑅 maMul ⟨𝐼, 𝐼, 𝐼⟩)𝑀) = (uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀))
268267oveqd 6707 . . . . . . . . . . . . . . . . . . . . 21 ((𝑅 ∈ Field ∧ 𝐼 ∈ Fin) → (𝑖(uncurry 𝑓(𝑅 maMul ⟨𝐼, 𝐼, 𝐼⟩)𝑀)𝑗) = (𝑖(uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀)𝑗))
2694, 268sylan2 490 . . . . . . . . . . . . . . . . . . . 20 ((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → (𝑖(uncurry 𝑓(𝑅 maMul ⟨𝐼, 𝐼, 𝐼⟩)𝑀)𝑗) = (𝑖(uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀)𝑗))
270269ad3antrrr 766 . . . . . . . . . . . . . . . . . . 19 (((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → (𝑖(uncurry 𝑓(𝑅 maMul ⟨𝐼, 𝐼, 𝐼⟩)𝑀)𝑗) = (𝑖(uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀)𝑗))
271253, 264, 2703eqtr2rd 2692 . . . . . . . . . . . . . . . . . 18 (((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → (𝑖(uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀)𝑗) = ((𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))‘𝑗))
272248, 271eqeq12d 2666 . . . . . . . . . . . . . . . . 17 (((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → ((𝑖(1r‘(𝐼 Mat 𝑅))𝑗) = (𝑖(uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀)𝑗) ↔ (((𝑅 unitVec 𝐼)‘𝑖)‘𝑗) = ((𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))‘𝑗)))
273229, 272syl5ibr 236 . . . . . . . . . . . . . . . 16 (((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ 𝑖𝐼) ∧ 𝑗𝐼) → (((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗))))) → (𝑖(1r‘(𝐼 Mat 𝑅))𝑗) = (𝑖(uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀)𝑗)))
274273ex 449 . . . . . . . . . . . . . . 15 ((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ 𝑖𝐼) → (𝑗𝐼 → (((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗))))) → (𝑖(1r‘(𝐼 Mat 𝑅))𝑗) = (𝑖(uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀)𝑗))))
275274com23 86 . . . . . . . . . . . . . 14 ((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ 𝑖𝐼) → (((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗))))) → (𝑗𝐼 → (𝑖(1r‘(𝐼 Mat 𝑅))𝑗) = (𝑖(uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀)𝑗))))
276226, 228, 275ralrimd 2988 . . . . . . . . . . . . 13 ((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ 𝑖𝐼) → (((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗))))) → ∀𝑗𝐼 (𝑖(1r‘(𝐼 Mat 𝑅))𝑗) = (𝑖(uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀)𝑗)))
277276ralimdva 2991 . . . . . . . . . . . 12 (((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) → (∀𝑖𝐼 ((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗))))) → ∀𝑖𝐼𝑗𝐼 (𝑖(1r‘(𝐼 Mat 𝑅))𝑗) = (𝑖(uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀)𝑗)))
2781, 2, 242mat1bas 20303 . . . . . . . . . . . . . . . . 17 ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → (1r‘(𝐼 Mat 𝑅)) ∈ (Base‘(𝐼 Mat 𝑅)))
27913, 14frlmfibas 20153 . . . . . . . . . . . . . . . . . . 19 ((𝑅 ∈ Ring ∧ (𝐼 × 𝐼) ∈ Fin) → ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) = (Base‘(𝑅 freeLMod (𝐼 × 𝐼))))
28012, 279sylan2 490 . . . . . . . . . . . . . . . . . 18 ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) = (Base‘(𝑅 freeLMod (𝐼 × 𝐼))))
2811, 13matbas 20267 . . . . . . . . . . . . . . . . . . 19 ((𝐼 ∈ Fin ∧ 𝑅 ∈ Ring) → (Base‘(𝑅 freeLMod (𝐼 × 𝐼))) = (Base‘(𝐼 Mat 𝑅)))
282281ancoms 468 . . . . . . . . . . . . . . . . . 18 ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → (Base‘(𝑅 freeLMod (𝐼 × 𝐼))) = (Base‘(𝐼 Mat 𝑅)))
283280, 282eqtrd 2685 . . . . . . . . . . . . . . . . 17 ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) = (Base‘(𝐼 Mat 𝑅)))
284278, 283eleqtrrd 2733 . . . . . . . . . . . . . . . 16 ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → (1r‘(𝐼 Mat 𝑅)) ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)))
285 elmapfn 7922 . . . . . . . . . . . . . . . 16 ((1r‘(𝐼 Mat 𝑅)) ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) → (1r‘(𝐼 Mat 𝑅)) Fn (𝐼 × 𝐼))
286284, 285syl 17 . . . . . . . . . . . . . . 15 ((𝑅 ∈ Ring ∧ 𝐼 ∈ Fin) → (1r‘(𝐼 Mat 𝑅)) Fn (𝐼 × 𝐼))
287230, 4, 286syl2an 493 . . . . . . . . . . . . . 14 ((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → (1r‘(𝐼 Mat 𝑅)) Fn (𝐼 × 𝐼))
288287adantr 480 . . . . . . . . . . . . 13 (((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) → (1r‘(𝐼 Mat 𝑅)) Fn (𝐼 × 𝐼))
2891matring 20297 . . . . . . . . . . . . . . . . . 18 ((𝐼 ∈ Fin ∧ 𝑅 ∈ Ring) → (𝐼 Mat 𝑅) ∈ Ring)
2904, 230, 289syl2anr 494 . . . . . . . . . . . . . . . . 17 ((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → (𝐼 Mat 𝑅) ∈ Ring)
291290adantr 480 . . . . . . . . . . . . . . . 16 (((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) → (𝐼 Mat 𝑅) ∈ Ring)
292 simplr 807 . . . . . . . . . . . . . . . 16 (((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) → 𝑀 ∈ (Base‘(𝐼 Mat 𝑅)))
293 eqid 2651 . . . . . . . . . . . . . . . . 17 (.r‘(𝐼 Mat 𝑅)) = (.r‘(𝐼 Mat 𝑅))
2942, 293ringcl 18607 . . . . . . . . . . . . . . . 16 (((𝐼 Mat 𝑅) ∈ Ring ∧ uncurry 𝑓 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → (uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀) ∈ (Base‘(𝐼 Mat 𝑅)))
295291, 224, 292, 294syl3anc 1366 . . . . . . . . . . . . . . 15 (((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) → (uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀) ∈ (Base‘(𝐼 Mat 𝑅)))
296218adantr 480 . . . . . . . . . . . . . . 15 (((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) → ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) = (Base‘(𝐼 Mat 𝑅)))
297295, 296eleqtrrd 2733 . . . . . . . . . . . . . 14 (((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) → (uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀) ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)))
298 elmapfn 7922 . . . . . . . . . . . . . 14 ((uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀) ∈ ((Base‘𝑅) ↑𝑚 (𝐼 × 𝐼)) → (uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀) Fn (𝐼 × 𝐼))
299297, 298syl 17 . . . . . . . . . . . . 13 (((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) → (uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀) Fn (𝐼 × 𝐼))
300 eqfnov2 6809 . . . . . . . . . . . . 13 (((1r‘(𝐼 Mat 𝑅)) Fn (𝐼 × 𝐼) ∧ (uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀) Fn (𝐼 × 𝐼)) → ((1r‘(𝐼 Mat 𝑅)) = (uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀) ↔ ∀𝑖𝐼𝑗𝐼 (𝑖(1r‘(𝐼 Mat 𝑅))𝑗) = (𝑖(uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀)𝑗)))
301288, 299, 300syl2anc 694 . . . . . . . . . . . 12 (((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) → ((1r‘(𝐼 Mat 𝑅)) = (uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀) ↔ ∀𝑖𝐼𝑗𝐼 (𝑖(1r‘(𝐼 Mat 𝑅))𝑗) = (𝑖(uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀)𝑗)))
302277, 301sylibrd 249 . . . . . . . . . . 11 (((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) → (∀𝑖𝐼 ((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗))))) → (1r‘(𝐼 Mat 𝑅)) = (uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀)))
303302imp 444 . . . . . . . . . 10 ((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ ∀𝑖𝐼 ((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))) → (1r‘(𝐼 Mat 𝑅)) = (uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀))
304303eqcomd 2657 . . . . . . . . 9 ((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ ∀𝑖𝐼 ((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))) → (uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅)))
305 oveq1 6697 . . . . . . . . . . 11 (𝑛 = uncurry 𝑓 → (𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀))
306305eqeq1d 2653 . . . . . . . . . 10 (𝑛 = uncurry 𝑓 → ((𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅)) ↔ (uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅))))
307306rspcev 3340 . . . . . . . . 9 ((uncurry 𝑓 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ (uncurry 𝑓(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅))) → ∃𝑛 ∈ (Base‘(𝐼 Mat 𝑅))(𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅)))
308225, 304, 307syl2anc 694 . . . . . . . 8 ((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅)) ∧ ∀𝑖𝐼 ((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))) → ∃𝑛 ∈ (Base‘(𝐼 Mat 𝑅))(𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅)))
309308expl 647 . . . . . . 7 ((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → ((uncurry 𝑓:(𝐼 × 𝐼)⟶(Base‘𝑅) ∧ ∀𝑖𝐼 ((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))) → ∃𝑛 ∈ (Base‘(𝐼 Mat 𝑅))(𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅))))
310212, 309sylani 687 . . . . . 6 ((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → ((𝑓:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼) ∧ ∀𝑖𝐼 ((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))) → ∃𝑛 ∈ (Base‘(𝐼 Mat 𝑅))(𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅))))
311310exlimdv 1901 . . . . 5 ((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → (∃𝑓(𝑓:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼) ∧ ∀𝑖𝐼 ((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗)))))) → ∃𝑛 ∈ (Base‘(𝐼 Mat 𝑅))(𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅))))
312311imp 444 . . . 4 (((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ ∃𝑓(𝑓:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼) ∧ ∀𝑖𝐼 ((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗))))))) → ∃𝑛 ∈ (Base‘(𝐼 Mat 𝑅))(𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅)))
313312adantlr 751 . . 3 ((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝐼 ≠ ∅) ∧ ∃𝑓(𝑓:𝐼⟶((Base‘𝑅) ↑𝑚 𝐼) ∧ ∀𝑖𝐼 ((𝑅 unitVec 𝐼)‘𝑖) = (𝑗𝐼 ↦ (𝑅 Σg (𝑘𝐼 ↦ ((𝑖uncurry 𝑓𝑘)(.r𝑅)(𝑘𝑀𝑗))))))) → ∃𝑛 ∈ (Base‘(𝐼 Mat 𝑅))(𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅)))
314211, 313syldan 486 . 2 ((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝐼 ≠ ∅) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → ∃𝑛 ∈ (Base‘(𝐼 Mat 𝑅))(𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅)))
3156simprbi 479 . . . 4 (𝑅 ∈ Field → 𝑅 ∈ CRing)
316 eqid 2651 . . . . . . . . . 10 (𝐼 maDet 𝑅) = (𝐼 maDet 𝑅)
317316, 1, 2, 14mdetcl 20450 . . . . . . . . 9 ((𝑅 ∈ CRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → ((𝐼 maDet 𝑅)‘𝑀) ∈ (Base‘𝑅))
318316, 1, 2, 14mdetcl 20450 . . . . . . . . 9 ((𝑅 ∈ CRing ∧ 𝑛 ∈ (Base‘(𝐼 Mat 𝑅))) → ((𝐼 maDet 𝑅)‘𝑛) ∈ (Base‘𝑅))
319 eqid 2651 . . . . . . . . . 10 (∥r𝑅) = (∥r𝑅)
32014, 319, 121dvdsrmul 18694 . . . . . . . . 9 ((((𝐼 maDet 𝑅)‘𝑀) ∈ (Base‘𝑅) ∧ ((𝐼 maDet 𝑅)‘𝑛) ∈ (Base‘𝑅)) → ((𝐼 maDet 𝑅)‘𝑀)(∥r𝑅)(((𝐼 maDet 𝑅)‘𝑛)(.r𝑅)((𝐼 maDet 𝑅)‘𝑀)))
321317, 318, 320syl2an 493 . . . . . . . 8 (((𝑅 ∈ CRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ (𝑅 ∈ CRing ∧ 𝑛 ∈ (Base‘(𝐼 Mat 𝑅)))) → ((𝐼 maDet 𝑅)‘𝑀)(∥r𝑅)(((𝐼 maDet 𝑅)‘𝑛)(.r𝑅)((𝐼 maDet 𝑅)‘𝑀)))
322321anandis 890 . . . . . . 7 ((𝑅 ∈ CRing ∧ (𝑀 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ 𝑛 ∈ (Base‘(𝐼 Mat 𝑅)))) → ((𝐼 maDet 𝑅)‘𝑀)(∥r𝑅)(((𝐼 maDet 𝑅)‘𝑛)(.r𝑅)((𝐼 maDet 𝑅)‘𝑀)))
323322anassrs 681 . . . . . 6 (((𝑅 ∈ CRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝑛 ∈ (Base‘(𝐼 Mat 𝑅))) → ((𝐼 maDet 𝑅)‘𝑀)(∥r𝑅)(((𝐼 maDet 𝑅)‘𝑛)(.r𝑅)((𝐼 maDet 𝑅)‘𝑀)))
324323adantrr 753 . . . . 5 (((𝑅 ∈ CRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ (𝑛 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ (𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅)))) → ((𝐼 maDet 𝑅)‘𝑀)(∥r𝑅)(((𝐼 maDet 𝑅)‘𝑛)(.r𝑅)((𝐼 maDet 𝑅)‘𝑀)))
325 fveq2 6229 . . . . . . . . 9 ((𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅)) → ((𝐼 maDet 𝑅)‘(𝑛(.r‘(𝐼 Mat 𝑅))𝑀)) = ((𝐼 maDet 𝑅)‘(1r‘(𝐼 Mat 𝑅))))
3261, 2, 316, 121, 293mdetmul 20477 . . . . . . . . . . . 12 ((𝑅 ∈ CRing ∧ 𝑛 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → ((𝐼 maDet 𝑅)‘(𝑛(.r‘(𝐼 Mat 𝑅))𝑀)) = (((𝐼 maDet 𝑅)‘𝑛)(.r𝑅)((𝐼 maDet 𝑅)‘𝑀)))
3273263expa 1284 . . . . . . . . . . 11 (((𝑅 ∈ CRing ∧ 𝑛 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → ((𝐼 maDet 𝑅)‘(𝑛(.r‘(𝐼 Mat 𝑅))𝑀)) = (((𝐼 maDet 𝑅)‘𝑛)(.r𝑅)((𝐼 maDet 𝑅)‘𝑀)))
328327an32s 863 . . . . . . . . . 10 (((𝑅 ∈ CRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝑛 ∈ (Base‘(𝐼 Mat 𝑅))) → ((𝐼 maDet 𝑅)‘(𝑛(.r‘(𝐼 Mat 𝑅))𝑀)) = (((𝐼 maDet 𝑅)‘𝑛)(.r𝑅)((𝐼 maDet 𝑅)‘𝑀)))
329316, 1, 242, 236mdet1 20455 . . . . . . . . . . . 12 ((𝑅 ∈ CRing ∧ 𝐼 ∈ Fin) → ((𝐼 maDet 𝑅)‘(1r‘(𝐼 Mat 𝑅))) = (1r𝑅))
3304, 329sylan2 490 . . . . . . . . . . 11 ((𝑅 ∈ CRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) → ((𝐼 maDet 𝑅)‘(1r‘(𝐼 Mat 𝑅))) = (1r𝑅))
331330adantr 480 . . . . . . . . . 10 (((𝑅 ∈ CRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝑛 ∈ (Base‘(𝐼 Mat 𝑅))) → ((𝐼 maDet 𝑅)‘(1r‘(𝐼 Mat 𝑅))) = (1r𝑅))
332328, 331eqeq12d 2666 . . . . . . . . 9 (((𝑅 ∈ CRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝑛 ∈ (Base‘(𝐼 Mat 𝑅))) → (((𝐼 maDet 𝑅)‘(𝑛(.r‘(𝐼 Mat 𝑅))𝑀)) = ((𝐼 maDet 𝑅)‘(1r‘(𝐼 Mat 𝑅))) ↔ (((𝐼 maDet 𝑅)‘𝑛)(.r𝑅)((𝐼 maDet 𝑅)‘𝑀)) = (1r𝑅)))
333325, 332syl5ib 234 . . . . . . . 8 (((𝑅 ∈ CRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝑛 ∈ (Base‘(𝐼 Mat 𝑅))) → ((𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅)) → (((𝐼 maDet 𝑅)‘𝑛)(.r𝑅)((𝐼 maDet 𝑅)‘𝑀)) = (1r𝑅)))
334333impr 648 . . . . . . 7 (((𝑅 ∈ CRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ (𝑛 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ (𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅)))) → (((𝐼 maDet 𝑅)‘𝑛)(.r𝑅)((𝐼 maDet 𝑅)‘𝑀)) = (1r𝑅))
335334breq2d 4697 . . . . . 6 (((𝑅 ∈ CRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ (𝑛 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ (𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅)))) → (((𝐼 maDet 𝑅)‘𝑀)(∥r𝑅)(((𝐼 maDet 𝑅)‘𝑛)(.r𝑅)((𝐼 maDet 𝑅)‘𝑀)) ↔ ((𝐼 maDet 𝑅)‘𝑀)(∥r𝑅)(1r𝑅)))
336 eqid 2651 . . . . . . . 8 (Unit‘𝑅) = (Unit‘𝑅)
337336, 236, 319crngunit 18708 . . . . . . 7 (𝑅 ∈ CRing → (((𝐼 maDet 𝑅)‘𝑀) ∈ (Unit‘𝑅) ↔ ((𝐼 maDet 𝑅)‘𝑀)(∥r𝑅)(1r𝑅)))
338337ad2antrr 762 . . . . . 6 (((𝑅 ∈ CRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ (𝑛 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ (𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅)))) → (((𝐼 maDet 𝑅)‘𝑀) ∈ (Unit‘𝑅) ↔ ((𝐼 maDet 𝑅)‘𝑀)(∥r𝑅)(1r𝑅)))
339335, 338bitr4d 271 . . . . 5 (((𝑅 ∈ CRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ (𝑛 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ (𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅)))) → (((𝐼 maDet 𝑅)‘𝑀)(∥r𝑅)(((𝐼 maDet 𝑅)‘𝑛)(.r𝑅)((𝐼 maDet 𝑅)‘𝑀)) ↔ ((𝐼 maDet 𝑅)‘𝑀) ∈ (Unit‘𝑅)))
340324, 339mpbid 222 . . . 4 (((𝑅 ∈ CRing ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ (𝑛 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ (𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅)))) → ((𝐼 maDet 𝑅)‘𝑀) ∈ (Unit‘𝑅))
341315, 340sylanl1 683 . . 3 (((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ (𝑛 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ (𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅)))) → ((𝐼 maDet 𝑅)‘𝑀) ∈ (Unit‘𝑅))
342341ad4ant14 1317 . 2 (((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝐼 ≠ ∅) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) ∧ (𝑛 ∈ (Base‘(𝐼 Mat 𝑅)) ∧ (𝑛(.r‘(𝐼 Mat 𝑅))𝑀) = (1r‘(𝐼 Mat 𝑅)))) → ((𝐼 maDet 𝑅)‘𝑀) ∈ (Unit‘𝑅))
343314, 342rexlimddv 3064 1 ((((𝑅 ∈ Field ∧ 𝑀 ∈ (Base‘(𝐼 Mat 𝑅))) ∧ 𝐼 ≠ ∅) ∧ curry 𝑀 LIndF (𝑅 freeLMod 𝐼)) → ((𝐼 maDet 𝑅)‘𝑀) ∈ (Unit‘𝑅))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 196  wa 383  w3a 1054   = wceq 1523  wex 1744  wcel 2030  wne 2823  wral 2941  wrex 2942  Vcvv 3231  cdif 3604  c0 3948  ifcif 4119  {csn 4210  cotp 4218   class class class wbr 4685  cmpt 4762   × cxp 5141  dom cdm 5143  ran crn 5144  cima 5146   Fn wfn 5921  wf 5922  1-1wf1 5923  1-1-ontowf1o 5925  cfv 5926  (class class class)co 6690  𝑓 cof 6937  curry ccur 7436  uncurry cunc 7437  𝑚 cmap 7899  cen 7994  Fincfn 7997   finSupp cfsupp 8316  Basecbs 15904  .rcmulr 15989  Scalarcsca 15991   ·𝑠 cvsca 15992  0gc0g 16147   Σg cgsu 16148  1rcur 18547  Ringcrg 18593  CRingccrg 18594  rcdsr 18684  Unitcui 18685  DivRingcdr 18795  Fieldcfield 18796  LModclmod 18911  LSpanclspn 19019  LBasisclbs 19122  NzRingcnzr 19305   freeLMod cfrlm 20138   unitVec cuvc 20169   LIndF clindf 20191  LIndSclinds 20192   maMul cmmul 20237   Mat cmat 20261   maDet cmdat 20438
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1762  ax-4 1777  ax-5 1879  ax-6 1945  ax-7 1981  ax-8 2032  ax-9 2039  ax-10 2059  ax-11 2074  ax-12 2087  ax-13 2282  ax-ext 2631  ax-rep 4804  ax-sep 4814  ax-nul 4822  ax-pow 4873  ax-pr 4936  ax-un 6991  ax-inf2 8576  ax-cnex 10030  ax-resscn 10031  ax-1cn 10032  ax-icn 10033  ax-addcl 10034  ax-addrcl 10035  ax-mulcl 10036  ax-mulrcl 10037  ax-mulcom 10038  ax-addass 10039  ax-mulass 10040  ax-distr 10041  ax-i2m1 10042  ax-1ne0 10043  ax-1rid 10044  ax-rnegex 10045  ax-rrecex 10046  ax-cnre 10047  ax-pre-lttri 10048  ax-pre-lttrn 10049  ax-pre-ltadd 10050  ax-pre-mulgt0 10051  ax-addf 10053  ax-mulf 10054
This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3or 1055  df-3an 1056  df-xor 1505  df-tru 1526  df-fal 1529  df-ex 1745  df-nf 1750  df-sb 1938  df-eu 2502  df-mo 2503  df-clab 2638  df-cleq 2644  df-clel 2647  df-nfc 2782  df-ne 2824  df-nel 2927  df-ral 2946  df-rex 2947  df-reu 2948  df-rmo 2949  df-rab 2950  df-v 3233  df-sbc 3469  df-csb 3567  df-dif 3610  df-un 3612  df-in 3614  df-ss 3621  df-pss 3623  df-nul 3949  df-if 4120  df-pw 4193  df-sn 4211  df-pr 4213  df-tp 4215  df-op 4217  df-ot 4219  df-uni 4469  df-int 4508  df-iun 4554  df-iin 4555  df-br 4686  df-opab 4746  df-mpt 4763  df-tr 4786  df-id 5053  df-eprel 5058  df-po 5064  df-so 5065  df-fr 5102  df-se 5103  df-we 5104  df-xp 5149  df-rel 5150  df-cnv 5151  df-co 5152  df-dm 5153  df-rn 5154  df-res 5155  df-ima 5156  df-pred 5718  df-ord 5764  df-on 5765  df-lim 5766  df-suc 5767  df-iota 5889  df-fun 5928  df-fn 5929  df-f 5930  df-f1 5931  df-fo 5932  df-f1o 5933  df-fv 5934  df-isom 5935  df-riota 6651  df-ov 6693  df-oprab 6694  df-mpt2 6695  df-of 6939  df-om 7108  df-1st 7210  df-2nd 7211  df-supp 7341  df-tpos 7397  df-cur 7438  df-unc 7439  df-wrecs 7452  df-recs 7513  df-rdg 7551  df-1o 7605  df-2o 7606  df-oadd 7609  df-er 7787  df-map 7901  df-pm 7902  df-ixp 7951  df-en 7998  df-dom 7999  df-sdom 8000  df-fin 8001  df-fsupp 8317  df-sup 8389  df-oi 8456  df-card 8803  df-pnf 10114  df-mnf 10115  df-xr 10116  df-ltxr 10117  df-le 10118  df-sub 10306  df-neg 10307  df-div 10723  df-nn 11059  df-2 11117  df-3 11118  df-4 11119  df-5 11120  df-6 11121  df-7 11122  df-8 11123  df-9 11124  df-n0 11331  df-xnn0 11402  df-z 11416  df-dec 11532  df-uz 11726  df-rp 11871  df-fz 12365  df-fzo 12505  df-seq 12842  df-exp 12901  df-hash 13158  df-word 13331  df-lsw 13332  df-concat 13333  df-s1 13334  df-substr 13335  df-splice 13336  df-reverse 13337  df-s2 13639  df-struct 15906  df-ndx 15907  df-slot 15908  df-base 15910  df-sets 15911  df-ress 15912  df-plusg 16001  df-mulr 16002  df-starv 16003  df-sca 16004  df-vsca 16005  df-ip 16006  df-tset 16007  df-ple 16008  df-ds 16011  df-unif 16012  df-hom 16013  df-cco 16014  df-0g 16149  df-gsum 16150  df-prds 16155  df-pws 16157  df-mre 16293  df-mrc 16294  df-mri 16295  df-acs 16296  df-mgm 17289  df-sgrp 17331  df-mnd 17342  df-mhm 17382  df-submnd 17383  df-grp 17472  df-minusg 17473  df-sbg 17474  df-mulg 17588  df-subg 17638  df-ghm 17705  df-gim 17748  df-cntz 17796  df-oppg 17822  df-symg 17844  df-pmtr 17908  df-psgn 17957  df-evpm 17958  df-cmn 18241  df-abl 18242  df-mgp 18536  df-ur 18548  df-srg 18552  df-ring 18595  df-cring 18596  df-oppr 18669  df-dvdsr 18687  df-unit 18688  df-invr 18718  df-dvr 18729  df-rnghom 18763  df-drng 18797  df-field 18798  df-subrg 18826  df-lmod 18913  df-lss 18981  df-lsp 19020  df-lmhm 19070  df-lbs 19123  df-lvec 19151  df-sra 19220  df-rgmod 19221  df-nzr 19306  df-cnfld 19795  df-zring 19867  df-zrh 19900  df-dsmm 20124  df-frlm 20139  df-uvc 20170  df-lindf 20193  df-linds 20194  df-mamu 20238  df-mat 20262  df-mdet 20439
This theorem is referenced by:  matunitlindf  33537
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