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Theorem curf1cl 17076
Description: The partially evaluated curry functor is a functor. (Contributed by Mario Carneiro, 13-Jan-2017.)
Hypotheses
Ref Expression
curfval.g 𝐺 = (⟨𝐶, 𝐷⟩ curryF 𝐹)
curfval.a 𝐴 = (Base‘𝐶)
curfval.c (𝜑𝐶 ∈ Cat)
curfval.d (𝜑𝐷 ∈ Cat)
curfval.f (𝜑𝐹 ∈ ((𝐶 ×c 𝐷) Func 𝐸))
curfval.b 𝐵 = (Base‘𝐷)
curf1.x (𝜑𝑋𝐴)
curf1.k 𝐾 = ((1st𝐺)‘𝑋)
Assertion
Ref Expression
curf1cl (𝜑𝐾 ∈ (𝐷 Func 𝐸))

Proof of Theorem curf1cl
Dummy variables 𝑔 𝑦 𝑧 𝑤 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 curfval.g . . . 4 𝐺 = (⟨𝐶, 𝐷⟩ curryF 𝐹)
2 curfval.a . . . 4 𝐴 = (Base‘𝐶)
3 curfval.c . . . 4 (𝜑𝐶 ∈ Cat)
4 curfval.d . . . 4 (𝜑𝐷 ∈ Cat)
5 curfval.f . . . 4 (𝜑𝐹 ∈ ((𝐶 ×c 𝐷) Func 𝐸))
6 curfval.b . . . 4 𝐵 = (Base‘𝐷)
7 curf1.x . . . 4 (𝜑𝑋𝐴)
8 curf1.k . . . 4 𝐾 = ((1st𝐺)‘𝑋)
9 eqid 2771 . . . 4 (Hom ‘𝐷) = (Hom ‘𝐷)
10 eqid 2771 . . . 4 (Id‘𝐶) = (Id‘𝐶)
111, 2, 3, 4, 5, 6, 7, 8, 9, 10curf1 17073 . . 3 (𝜑𝐾 = ⟨(𝑦𝐵 ↦ (𝑋(1st𝐹)𝑦)), (𝑦𝐵, 𝑧𝐵 ↦ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔)))⟩)
12 fvex 6342 . . . . . . . 8 (Base‘𝐷) ∈ V
136, 12eqeltri 2846 . . . . . . 7 𝐵 ∈ V
1413mptex 6630 . . . . . 6 (𝑦𝐵 ↦ (𝑋(1st𝐹)𝑦)) ∈ V
1513, 13mpt2ex 7397 . . . . . 6 (𝑦𝐵, 𝑧𝐵 ↦ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔))) ∈ V
1614, 15op1std 7325 . . . . 5 (𝐾 = ⟨(𝑦𝐵 ↦ (𝑋(1st𝐹)𝑦)), (𝑦𝐵, 𝑧𝐵 ↦ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔)))⟩ → (1st𝐾) = (𝑦𝐵 ↦ (𝑋(1st𝐹)𝑦)))
1711, 16syl 17 . . . 4 (𝜑 → (1st𝐾) = (𝑦𝐵 ↦ (𝑋(1st𝐹)𝑦)))
1814, 15op2ndd 7326 . . . . 5 (𝐾 = ⟨(𝑦𝐵 ↦ (𝑋(1st𝐹)𝑦)), (𝑦𝐵, 𝑧𝐵 ↦ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔)))⟩ → (2nd𝐾) = (𝑦𝐵, 𝑧𝐵 ↦ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔))))
1911, 18syl 17 . . . 4 (𝜑 → (2nd𝐾) = (𝑦𝐵, 𝑧𝐵 ↦ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔))))
2017, 19opeq12d 4547 . . 3 (𝜑 → ⟨(1st𝐾), (2nd𝐾)⟩ = ⟨(𝑦𝐵 ↦ (𝑋(1st𝐹)𝑦)), (𝑦𝐵, 𝑧𝐵 ↦ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔)))⟩)
2111, 20eqtr4d 2808 . 2 (𝜑𝐾 = ⟨(1st𝐾), (2nd𝐾)⟩)
22 eqid 2771 . . . 4 (Base‘𝐸) = (Base‘𝐸)
23 eqid 2771 . . . 4 (Hom ‘𝐸) = (Hom ‘𝐸)
24 eqid 2771 . . . 4 (Id‘𝐷) = (Id‘𝐷)
25 eqid 2771 . . . 4 (Id‘𝐸) = (Id‘𝐸)
26 eqid 2771 . . . 4 (comp‘𝐷) = (comp‘𝐷)
27 eqid 2771 . . . 4 (comp‘𝐸) = (comp‘𝐸)
28 funcrcl 16730 . . . . . 6 (𝐹 ∈ ((𝐶 ×c 𝐷) Func 𝐸) → ((𝐶 ×c 𝐷) ∈ Cat ∧ 𝐸 ∈ Cat))
295, 28syl 17 . . . . 5 (𝜑 → ((𝐶 ×c 𝐷) ∈ Cat ∧ 𝐸 ∈ Cat))
3029simprd 483 . . . 4 (𝜑𝐸 ∈ Cat)
31 eqid 2771 . . . . . . . . . 10 (𝐶 ×c 𝐷) = (𝐶 ×c 𝐷)
3231, 2, 6xpcbas 17026 . . . . . . . . 9 (𝐴 × 𝐵) = (Base‘(𝐶 ×c 𝐷))
33 relfunc 16729 . . . . . . . . . 10 Rel ((𝐶 ×c 𝐷) Func 𝐸)
34 1st2ndbr 7366 . . . . . . . . . 10 ((Rel ((𝐶 ×c 𝐷) Func 𝐸) ∧ 𝐹 ∈ ((𝐶 ×c 𝐷) Func 𝐸)) → (1st𝐹)((𝐶 ×c 𝐷) Func 𝐸)(2nd𝐹))
3533, 5, 34sylancr 575 . . . . . . . . 9 (𝜑 → (1st𝐹)((𝐶 ×c 𝐷) Func 𝐸)(2nd𝐹))
3632, 22, 35funcf1 16733 . . . . . . . 8 (𝜑 → (1st𝐹):(𝐴 × 𝐵)⟶(Base‘𝐸))
3736adantr 466 . . . . . . 7 ((𝜑𝑦𝐵) → (1st𝐹):(𝐴 × 𝐵)⟶(Base‘𝐸))
387adantr 466 . . . . . . 7 ((𝜑𝑦𝐵) → 𝑋𝐴)
39 simpr 471 . . . . . . 7 ((𝜑𝑦𝐵) → 𝑦𝐵)
4037, 38, 39fovrnd 6953 . . . . . 6 ((𝜑𝑦𝐵) → (𝑋(1st𝐹)𝑦) ∈ (Base‘𝐸))
41 eqid 2771 . . . . . 6 (𝑦𝐵 ↦ (𝑋(1st𝐹)𝑦)) = (𝑦𝐵 ↦ (𝑋(1st𝐹)𝑦))
4240, 41fmptd 6527 . . . . 5 (𝜑 → (𝑦𝐵 ↦ (𝑋(1st𝐹)𝑦)):𝐵⟶(Base‘𝐸))
4317feq1d 6170 . . . . 5 (𝜑 → ((1st𝐾):𝐵⟶(Base‘𝐸) ↔ (𝑦𝐵 ↦ (𝑋(1st𝐹)𝑦)):𝐵⟶(Base‘𝐸)))
4442, 43mpbird 247 . . . 4 (𝜑 → (1st𝐾):𝐵⟶(Base‘𝐸))
45 eqid 2771 . . . . . 6 (𝑦𝐵, 𝑧𝐵 ↦ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔))) = (𝑦𝐵, 𝑧𝐵 ↦ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔)))
46 ovex 6823 . . . . . . 7 (𝑦(Hom ‘𝐷)𝑧) ∈ V
4746mptex 6630 . . . . . 6 (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔)) ∈ V
4845, 47fnmpt2i 7389 . . . . 5 (𝑦𝐵, 𝑧𝐵 ↦ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔))) Fn (𝐵 × 𝐵)
4919fneq1d 6121 . . . . 5 (𝜑 → ((2nd𝐾) Fn (𝐵 × 𝐵) ↔ (𝑦𝐵, 𝑧𝐵 ↦ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔))) Fn (𝐵 × 𝐵)))
5048, 49mpbiri 248 . . . 4 (𝜑 → (2nd𝐾) Fn (𝐵 × 𝐵))
51 eqid 2771 . . . . . . . . 9 (Hom ‘(𝐶 ×c 𝐷)) = (Hom ‘(𝐶 ×c 𝐷))
5235ad2antrr 705 . . . . . . . . 9 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → (1st𝐹)((𝐶 ×c 𝐷) Func 𝐸)(2nd𝐹))
537ad2antrr 705 . . . . . . . . . 10 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → 𝑋𝐴)
54 simplrl 762 . . . . . . . . . 10 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → 𝑦𝐵)
55 opelxpi 5288 . . . . . . . . . 10 ((𝑋𝐴𝑦𝐵) → ⟨𝑋, 𝑦⟩ ∈ (𝐴 × 𝐵))
5653, 54, 55syl2anc 573 . . . . . . . . 9 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → ⟨𝑋, 𝑦⟩ ∈ (𝐴 × 𝐵))
57 simplrr 763 . . . . . . . . . 10 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → 𝑧𝐵)
58 opelxpi 5288 . . . . . . . . . 10 ((𝑋𝐴𝑧𝐵) → ⟨𝑋, 𝑧⟩ ∈ (𝐴 × 𝐵))
5953, 57, 58syl2anc 573 . . . . . . . . 9 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → ⟨𝑋, 𝑧⟩ ∈ (𝐴 × 𝐵))
6032, 51, 23, 52, 56, 59funcf2 16735 . . . . . . . 8 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → (⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩):(⟨𝑋, 𝑦⟩(Hom ‘(𝐶 ×c 𝐷))⟨𝑋, 𝑧⟩)⟶(((1st𝐹)‘⟨𝑋, 𝑦⟩)(Hom ‘𝐸)((1st𝐹)‘⟨𝑋, 𝑧⟩)))
61 eqid 2771 . . . . . . . . . 10 (Hom ‘𝐶) = (Hom ‘𝐶)
6231, 32, 61, 9, 51, 56, 59xpchom 17028 . . . . . . . . 9 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → (⟨𝑋, 𝑦⟩(Hom ‘(𝐶 ×c 𝐷))⟨𝑋, 𝑧⟩) = (((1st ‘⟨𝑋, 𝑦⟩)(Hom ‘𝐶)(1st ‘⟨𝑋, 𝑧⟩)) × ((2nd ‘⟨𝑋, 𝑦⟩)(Hom ‘𝐷)(2nd ‘⟨𝑋, 𝑧⟩))))
633ad2antrr 705 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → 𝐶 ∈ Cat)
644ad2antrr 705 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → 𝐷 ∈ Cat)
655ad2antrr 705 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → 𝐹 ∈ ((𝐶 ×c 𝐷) Func 𝐸))
661, 2, 63, 64, 65, 6, 53, 8, 54curf11 17074 . . . . . . . . . . 11 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → ((1st𝐾)‘𝑦) = (𝑋(1st𝐹)𝑦))
67 df-ov 6796 . . . . . . . . . . 11 (𝑋(1st𝐹)𝑦) = ((1st𝐹)‘⟨𝑋, 𝑦⟩)
6866, 67syl6req 2822 . . . . . . . . . 10 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → ((1st𝐹)‘⟨𝑋, 𝑦⟩) = ((1st𝐾)‘𝑦))
691, 2, 63, 64, 65, 6, 53, 8, 57curf11 17074 . . . . . . . . . . 11 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → ((1st𝐾)‘𝑧) = (𝑋(1st𝐹)𝑧))
70 df-ov 6796 . . . . . . . . . . 11 (𝑋(1st𝐹)𝑧) = ((1st𝐹)‘⟨𝑋, 𝑧⟩)
7169, 70syl6req 2822 . . . . . . . . . 10 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → ((1st𝐹)‘⟨𝑋, 𝑧⟩) = ((1st𝐾)‘𝑧))
7268, 71oveq12d 6811 . . . . . . . . 9 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → (((1st𝐹)‘⟨𝑋, 𝑦⟩)(Hom ‘𝐸)((1st𝐹)‘⟨𝑋, 𝑧⟩)) = (((1st𝐾)‘𝑦)(Hom ‘𝐸)((1st𝐾)‘𝑧)))
7362, 72feq23d 6180 . . . . . . . 8 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → ((⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩):(⟨𝑋, 𝑦⟩(Hom ‘(𝐶 ×c 𝐷))⟨𝑋, 𝑧⟩)⟶(((1st𝐹)‘⟨𝑋, 𝑦⟩)(Hom ‘𝐸)((1st𝐹)‘⟨𝑋, 𝑧⟩)) ↔ (⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩):(((1st ‘⟨𝑋, 𝑦⟩)(Hom ‘𝐶)(1st ‘⟨𝑋, 𝑧⟩)) × ((2nd ‘⟨𝑋, 𝑦⟩)(Hom ‘𝐷)(2nd ‘⟨𝑋, 𝑧⟩)))⟶(((1st𝐾)‘𝑦)(Hom ‘𝐸)((1st𝐾)‘𝑧))))
7460, 73mpbid 222 . . . . . . 7 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → (⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩):(((1st ‘⟨𝑋, 𝑦⟩)(Hom ‘𝐶)(1st ‘⟨𝑋, 𝑧⟩)) × ((2nd ‘⟨𝑋, 𝑦⟩)(Hom ‘𝐷)(2nd ‘⟨𝑋, 𝑧⟩)))⟶(((1st𝐾)‘𝑦)(Hom ‘𝐸)((1st𝐾)‘𝑧)))
752, 61, 10, 63, 53catidcl 16550 . . . . . . . 8 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → ((Id‘𝐶)‘𝑋) ∈ (𝑋(Hom ‘𝐶)𝑋))
76 op1stg 7327 . . . . . . . . . 10 ((𝑋𝐴𝑦𝐵) → (1st ‘⟨𝑋, 𝑦⟩) = 𝑋)
7753, 54, 76syl2anc 573 . . . . . . . . 9 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → (1st ‘⟨𝑋, 𝑦⟩) = 𝑋)
78 op1stg 7327 . . . . . . . . . 10 ((𝑋𝐴𝑧𝐵) → (1st ‘⟨𝑋, 𝑧⟩) = 𝑋)
7953, 57, 78syl2anc 573 . . . . . . . . 9 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → (1st ‘⟨𝑋, 𝑧⟩) = 𝑋)
8077, 79oveq12d 6811 . . . . . . . 8 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → ((1st ‘⟨𝑋, 𝑦⟩)(Hom ‘𝐶)(1st ‘⟨𝑋, 𝑧⟩)) = (𝑋(Hom ‘𝐶)𝑋))
8175, 80eleqtrrd 2853 . . . . . . 7 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → ((Id‘𝐶)‘𝑋) ∈ ((1st ‘⟨𝑋, 𝑦⟩)(Hom ‘𝐶)(1st ‘⟨𝑋, 𝑧⟩)))
82 simpr 471 . . . . . . . 8 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧))
83 op2ndg 7328 . . . . . . . . . 10 ((𝑋𝐴𝑦𝐵) → (2nd ‘⟨𝑋, 𝑦⟩) = 𝑦)
8453, 54, 83syl2anc 573 . . . . . . . . 9 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → (2nd ‘⟨𝑋, 𝑦⟩) = 𝑦)
85 op2ndg 7328 . . . . . . . . . 10 ((𝑋𝐴𝑧𝐵) → (2nd ‘⟨𝑋, 𝑧⟩) = 𝑧)
8653, 57, 85syl2anc 573 . . . . . . . . 9 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → (2nd ‘⟨𝑋, 𝑧⟩) = 𝑧)
8784, 86oveq12d 6811 . . . . . . . 8 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → ((2nd ‘⟨𝑋, 𝑦⟩)(Hom ‘𝐷)(2nd ‘⟨𝑋, 𝑧⟩)) = (𝑦(Hom ‘𝐷)𝑧))
8882, 87eleqtrrd 2853 . . . . . . 7 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → 𝑔 ∈ ((2nd ‘⟨𝑋, 𝑦⟩)(Hom ‘𝐷)(2nd ‘⟨𝑋, 𝑧⟩)))
8974, 81, 88fovrnd 6953 . . . . . 6 (((𝜑 ∧ (𝑦𝐵𝑧𝐵)) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔) ∈ (((1st𝐾)‘𝑦)(Hom ‘𝐸)((1st𝐾)‘𝑧)))
90 eqid 2771 . . . . . 6 (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔)) = (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔))
9189, 90fmptd 6527 . . . . 5 ((𝜑 ∧ (𝑦𝐵𝑧𝐵)) → (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔)):(𝑦(Hom ‘𝐷)𝑧)⟶(((1st𝐾)‘𝑦)(Hom ‘𝐸)((1st𝐾)‘𝑧)))
9219oveqd 6810 . . . . . . 7 (𝜑 → (𝑦(2nd𝐾)𝑧) = (𝑦(𝑦𝐵, 𝑧𝐵 ↦ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔)))𝑧))
9345ovmpt4g 6930 . . . . . . . 8 ((𝑦𝐵𝑧𝐵 ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔)) ∈ V) → (𝑦(𝑦𝐵, 𝑧𝐵 ↦ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔)))𝑧) = (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔)))
9447, 93mp3an3 1561 . . . . . . 7 ((𝑦𝐵𝑧𝐵) → (𝑦(𝑦𝐵, 𝑧𝐵 ↦ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔)))𝑧) = (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔)))
9592, 94sylan9eq 2825 . . . . . 6 ((𝜑 ∧ (𝑦𝐵𝑧𝐵)) → (𝑦(2nd𝐾)𝑧) = (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔)))
9695feq1d 6170 . . . . 5 ((𝜑 ∧ (𝑦𝐵𝑧𝐵)) → ((𝑦(2nd𝐾)𝑧):(𝑦(Hom ‘𝐷)𝑧)⟶(((1st𝐾)‘𝑦)(Hom ‘𝐸)((1st𝐾)‘𝑧)) ↔ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ↦ (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔)):(𝑦(Hom ‘𝐷)𝑧)⟶(((1st𝐾)‘𝑦)(Hom ‘𝐸)((1st𝐾)‘𝑧))))
9791, 96mpbird 247 . . . 4 ((𝜑 ∧ (𝑦𝐵𝑧𝐵)) → (𝑦(2nd𝐾)𝑧):(𝑦(Hom ‘𝐷)𝑧)⟶(((1st𝐾)‘𝑦)(Hom ‘𝐸)((1st𝐾)‘𝑧)))
983adantr 466 . . . . . . . . 9 ((𝜑𝑦𝐵) → 𝐶 ∈ Cat)
994adantr 466 . . . . . . . . 9 ((𝜑𝑦𝐵) → 𝐷 ∈ Cat)
100 eqid 2771 . . . . . . . . 9 (Id‘(𝐶 ×c 𝐷)) = (Id‘(𝐶 ×c 𝐷))
10131, 98, 99, 2, 6, 10, 24, 100, 38, 39xpcid 17037 . . . . . . . 8 ((𝜑𝑦𝐵) → ((Id‘(𝐶 ×c 𝐷))‘⟨𝑋, 𝑦⟩) = ⟨((Id‘𝐶)‘𝑋), ((Id‘𝐷)‘𝑦)⟩)
102101fveq2d 6336 . . . . . . 7 ((𝜑𝑦𝐵) → ((⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑦⟩)‘((Id‘(𝐶 ×c 𝐷))‘⟨𝑋, 𝑦⟩)) = ((⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑦⟩)‘⟨((Id‘𝐶)‘𝑋), ((Id‘𝐷)‘𝑦)⟩))
103 df-ov 6796 . . . . . . 7 (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑦⟩)((Id‘𝐷)‘𝑦)) = ((⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑦⟩)‘⟨((Id‘𝐶)‘𝑋), ((Id‘𝐷)‘𝑦)⟩)
104102, 103syl6eqr 2823 . . . . . 6 ((𝜑𝑦𝐵) → ((⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑦⟩)‘((Id‘(𝐶 ×c 𝐷))‘⟨𝑋, 𝑦⟩)) = (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑦⟩)((Id‘𝐷)‘𝑦)))
10535adantr 466 . . . . . . 7 ((𝜑𝑦𝐵) → (1st𝐹)((𝐶 ×c 𝐷) Func 𝐸)(2nd𝐹))
1067, 55sylan 569 . . . . . . 7 ((𝜑𝑦𝐵) → ⟨𝑋, 𝑦⟩ ∈ (𝐴 × 𝐵))
10732, 100, 25, 105, 106funcid 16737 . . . . . 6 ((𝜑𝑦𝐵) → ((⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑦⟩)‘((Id‘(𝐶 ×c 𝐷))‘⟨𝑋, 𝑦⟩)) = ((Id‘𝐸)‘((1st𝐹)‘⟨𝑋, 𝑦⟩)))
108104, 107eqtr3d 2807 . . . . 5 ((𝜑𝑦𝐵) → (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑦⟩)((Id‘𝐷)‘𝑦)) = ((Id‘𝐸)‘((1st𝐹)‘⟨𝑋, 𝑦⟩)))
1095adantr 466 . . . . . 6 ((𝜑𝑦𝐵) → 𝐹 ∈ ((𝐶 ×c 𝐷) Func 𝐸))
1106, 9, 24, 99, 39catidcl 16550 . . . . . 6 ((𝜑𝑦𝐵) → ((Id‘𝐷)‘𝑦) ∈ (𝑦(Hom ‘𝐷)𝑦))
1111, 2, 98, 99, 109, 6, 38, 8, 39, 9, 10, 39, 110curf12 17075 . . . . 5 ((𝜑𝑦𝐵) → ((𝑦(2nd𝐾)𝑦)‘((Id‘𝐷)‘𝑦)) = (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑦⟩)((Id‘𝐷)‘𝑦)))
1121, 2, 98, 99, 109, 6, 38, 8, 39curf11 17074 . . . . . . 7 ((𝜑𝑦𝐵) → ((1st𝐾)‘𝑦) = (𝑋(1st𝐹)𝑦))
113112, 67syl6eq 2821 . . . . . 6 ((𝜑𝑦𝐵) → ((1st𝐾)‘𝑦) = ((1st𝐹)‘⟨𝑋, 𝑦⟩))
114113fveq2d 6336 . . . . 5 ((𝜑𝑦𝐵) → ((Id‘𝐸)‘((1st𝐾)‘𝑦)) = ((Id‘𝐸)‘((1st𝐹)‘⟨𝑋, 𝑦⟩)))
115108, 111, 1143eqtr4d 2815 . . . 4 ((𝜑𝑦𝐵) → ((𝑦(2nd𝐾)𝑦)‘((Id‘𝐷)‘𝑦)) = ((Id‘𝐸)‘((1st𝐾)‘𝑦)))
11673ad2ant1 1127 . . . . . . . . . 10 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → 𝑋𝐴)
117 simp21 1248 . . . . . . . . . 10 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → 𝑦𝐵)
118 simp22 1249 . . . . . . . . . 10 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → 𝑧𝐵)
119 eqid 2771 . . . . . . . . . 10 (comp‘𝐶) = (comp‘𝐶)
120 eqid 2771 . . . . . . . . . 10 (comp‘(𝐶 ×c 𝐷)) = (comp‘(𝐶 ×c 𝐷))
121 simp23 1250 . . . . . . . . . 10 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → 𝑤𝐵)
12233ad2ant1 1127 . . . . . . . . . . 11 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → 𝐶 ∈ Cat)
1232, 61, 10, 122, 116catidcl 16550 . . . . . . . . . 10 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ((Id‘𝐶)‘𝑋) ∈ (𝑋(Hom ‘𝐶)𝑋))
124 simp3l 1243 . . . . . . . . . 10 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧))
125 simp3r 1244 . . . . . . . . . 10 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ∈ (𝑧(Hom ‘𝐷)𝑤))
12631, 2, 6, 61, 9, 116, 117, 116, 118, 119, 26, 120, 116, 121, 123, 124, 123, 125xpcco2 17035 . . . . . . . . 9 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → (⟨((Id‘𝐶)‘𝑋), ⟩(⟨⟨𝑋, 𝑦⟩, ⟨𝑋, 𝑧⟩⟩(comp‘(𝐶 ×c 𝐷))⟨𝑋, 𝑤⟩)⟨((Id‘𝐶)‘𝑋), 𝑔⟩) = ⟨(((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑋⟩(comp‘𝐶)𝑋)((Id‘𝐶)‘𝑋)), ((⟨𝑦, 𝑧⟩(comp‘𝐷)𝑤)𝑔)⟩)
1272, 61, 10, 122, 116, 119, 116, 123catlid 16551 . . . . . . . . . 10 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑋⟩(comp‘𝐶)𝑋)((Id‘𝐶)‘𝑋)) = ((Id‘𝐶)‘𝑋))
128127opeq1d 4545 . . . . . . . . 9 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ⟨(((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑋⟩(comp‘𝐶)𝑋)((Id‘𝐶)‘𝑋)), ((⟨𝑦, 𝑧⟩(comp‘𝐷)𝑤)𝑔)⟩ = ⟨((Id‘𝐶)‘𝑋), ((⟨𝑦, 𝑧⟩(comp‘𝐷)𝑤)𝑔)⟩)
129126, 128eqtrd 2805 . . . . . . . 8 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → (⟨((Id‘𝐶)‘𝑋), ⟩(⟨⟨𝑋, 𝑦⟩, ⟨𝑋, 𝑧⟩⟩(comp‘(𝐶 ×c 𝐷))⟨𝑋, 𝑤⟩)⟨((Id‘𝐶)‘𝑋), 𝑔⟩) = ⟨((Id‘𝐶)‘𝑋), ((⟨𝑦, 𝑧⟩(comp‘𝐷)𝑤)𝑔)⟩)
130129fveq2d 6336 . . . . . . 7 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ((⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑤⟩)‘(⟨((Id‘𝐶)‘𝑋), ⟩(⟨⟨𝑋, 𝑦⟩, ⟨𝑋, 𝑧⟩⟩(comp‘(𝐶 ×c 𝐷))⟨𝑋, 𝑤⟩)⟨((Id‘𝐶)‘𝑋), 𝑔⟩)) = ((⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑤⟩)‘⟨((Id‘𝐶)‘𝑋), ((⟨𝑦, 𝑧⟩(comp‘𝐷)𝑤)𝑔)⟩))
131 df-ov 6796 . . . . . . 7 (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑤⟩)((⟨𝑦, 𝑧⟩(comp‘𝐷)𝑤)𝑔)) = ((⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑤⟩)‘⟨((Id‘𝐶)‘𝑋), ((⟨𝑦, 𝑧⟩(comp‘𝐷)𝑤)𝑔)⟩)
132130, 131syl6eqr 2823 . . . . . 6 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ((⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑤⟩)‘(⟨((Id‘𝐶)‘𝑋), ⟩(⟨⟨𝑋, 𝑦⟩, ⟨𝑋, 𝑧⟩⟩(comp‘(𝐶 ×c 𝐷))⟨𝑋, 𝑤⟩)⟨((Id‘𝐶)‘𝑋), 𝑔⟩)) = (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑤⟩)((⟨𝑦, 𝑧⟩(comp‘𝐷)𝑤)𝑔)))
133353ad2ant1 1127 . . . . . . 7 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → (1st𝐹)((𝐶 ×c 𝐷) Func 𝐸)(2nd𝐹))
134116, 117, 55syl2anc 573 . . . . . . 7 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ⟨𝑋, 𝑦⟩ ∈ (𝐴 × 𝐵))
135116, 118, 58syl2anc 573 . . . . . . 7 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ⟨𝑋, 𝑧⟩ ∈ (𝐴 × 𝐵))
136 opelxpi 5288 . . . . . . . 8 ((𝑋𝐴𝑤𝐵) → ⟨𝑋, 𝑤⟩ ∈ (𝐴 × 𝐵))
137116, 121, 136syl2anc 573 . . . . . . 7 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ⟨𝑋, 𝑤⟩ ∈ (𝐴 × 𝐵))
138 opelxpi 5288 . . . . . . . . 9 ((((Id‘𝐶)‘𝑋) ∈ (𝑋(Hom ‘𝐶)𝑋) ∧ 𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧)) → ⟨((Id‘𝐶)‘𝑋), 𝑔⟩ ∈ ((𝑋(Hom ‘𝐶)𝑋) × (𝑦(Hom ‘𝐷)𝑧)))
139123, 124, 138syl2anc 573 . . . . . . . 8 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ⟨((Id‘𝐶)‘𝑋), 𝑔⟩ ∈ ((𝑋(Hom ‘𝐶)𝑋) × (𝑦(Hom ‘𝐷)𝑧)))
14031, 2, 6, 61, 9, 116, 117, 116, 118, 51xpchom2 17034 . . . . . . . 8 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → (⟨𝑋, 𝑦⟩(Hom ‘(𝐶 ×c 𝐷))⟨𝑋, 𝑧⟩) = ((𝑋(Hom ‘𝐶)𝑋) × (𝑦(Hom ‘𝐷)𝑧)))
141139, 140eleqtrrd 2853 . . . . . . 7 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ⟨((Id‘𝐶)‘𝑋), 𝑔⟩ ∈ (⟨𝑋, 𝑦⟩(Hom ‘(𝐶 ×c 𝐷))⟨𝑋, 𝑧⟩))
142 opelxpi 5288 . . . . . . . . 9 ((((Id‘𝐶)‘𝑋) ∈ (𝑋(Hom ‘𝐶)𝑋) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤)) → ⟨((Id‘𝐶)‘𝑋), ⟩ ∈ ((𝑋(Hom ‘𝐶)𝑋) × (𝑧(Hom ‘𝐷)𝑤)))
143123, 125, 142syl2anc 573 . . . . . . . 8 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ⟨((Id‘𝐶)‘𝑋), ⟩ ∈ ((𝑋(Hom ‘𝐶)𝑋) × (𝑧(Hom ‘𝐷)𝑤)))
14431, 2, 6, 61, 9, 116, 118, 116, 121, 51xpchom2 17034 . . . . . . . 8 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → (⟨𝑋, 𝑧⟩(Hom ‘(𝐶 ×c 𝐷))⟨𝑋, 𝑤⟩) = ((𝑋(Hom ‘𝐶)𝑋) × (𝑧(Hom ‘𝐷)𝑤)))
145143, 144eleqtrrd 2853 . . . . . . 7 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ⟨((Id‘𝐶)‘𝑋), ⟩ ∈ (⟨𝑋, 𝑧⟩(Hom ‘(𝐶 ×c 𝐷))⟨𝑋, 𝑤⟩))
14632, 51, 120, 27, 133, 134, 135, 137, 141, 145funcco 16738 . . . . . 6 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ((⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑤⟩)‘(⟨((Id‘𝐶)‘𝑋), ⟩(⟨⟨𝑋, 𝑦⟩, ⟨𝑋, 𝑧⟩⟩(comp‘(𝐶 ×c 𝐷))⟨𝑋, 𝑤⟩)⟨((Id‘𝐶)‘𝑋), 𝑔⟩)) = (((⟨𝑋, 𝑧⟩(2nd𝐹)⟨𝑋, 𝑤⟩)‘⟨((Id‘𝐶)‘𝑋), ⟩)(⟨((1st𝐹)‘⟨𝑋, 𝑦⟩), ((1st𝐹)‘⟨𝑋, 𝑧⟩)⟩(comp‘𝐸)((1st𝐹)‘⟨𝑋, 𝑤⟩))((⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)‘⟨((Id‘𝐶)‘𝑋), 𝑔⟩)))
147132, 146eqtr3d 2807 . . . . 5 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑤⟩)((⟨𝑦, 𝑧⟩(comp‘𝐷)𝑤)𝑔)) = (((⟨𝑋, 𝑧⟩(2nd𝐹)⟨𝑋, 𝑤⟩)‘⟨((Id‘𝐶)‘𝑋), ⟩)(⟨((1st𝐹)‘⟨𝑋, 𝑦⟩), ((1st𝐹)‘⟨𝑋, 𝑧⟩)⟩(comp‘𝐸)((1st𝐹)‘⟨𝑋, 𝑤⟩))((⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)‘⟨((Id‘𝐶)‘𝑋), 𝑔⟩)))
14843ad2ant1 1127 . . . . . 6 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → 𝐷 ∈ Cat)
14953ad2ant1 1127 . . . . . 6 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → 𝐹 ∈ ((𝐶 ×c 𝐷) Func 𝐸))
1506, 9, 26, 148, 117, 118, 121, 124, 125catcocl 16553 . . . . . 6 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ((⟨𝑦, 𝑧⟩(comp‘𝐷)𝑤)𝑔) ∈ (𝑦(Hom ‘𝐷)𝑤))
1511, 2, 122, 148, 149, 6, 116, 8, 117, 9, 10, 121, 150curf12 17075 . . . . 5 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ((𝑦(2nd𝐾)𝑤)‘((⟨𝑦, 𝑧⟩(comp‘𝐷)𝑤)𝑔)) = (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑤⟩)((⟨𝑦, 𝑧⟩(comp‘𝐷)𝑤)𝑔)))
1521, 2, 122, 148, 149, 6, 116, 8, 117curf11 17074 . . . . . . . . 9 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ((1st𝐾)‘𝑦) = (𝑋(1st𝐹)𝑦))
153152, 67syl6eq 2821 . . . . . . . 8 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ((1st𝐾)‘𝑦) = ((1st𝐹)‘⟨𝑋, 𝑦⟩))
1541, 2, 122, 148, 149, 6, 116, 8, 118curf11 17074 . . . . . . . . 9 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ((1st𝐾)‘𝑧) = (𝑋(1st𝐹)𝑧))
155154, 70syl6eq 2821 . . . . . . . 8 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ((1st𝐾)‘𝑧) = ((1st𝐹)‘⟨𝑋, 𝑧⟩))
156153, 155opeq12d 4547 . . . . . . 7 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ⟨((1st𝐾)‘𝑦), ((1st𝐾)‘𝑧)⟩ = ⟨((1st𝐹)‘⟨𝑋, 𝑦⟩), ((1st𝐹)‘⟨𝑋, 𝑧⟩)⟩)
1571, 2, 122, 148, 149, 6, 116, 8, 121curf11 17074 . . . . . . . 8 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ((1st𝐾)‘𝑤) = (𝑋(1st𝐹)𝑤))
158 df-ov 6796 . . . . . . . 8 (𝑋(1st𝐹)𝑤) = ((1st𝐹)‘⟨𝑋, 𝑤⟩)
159157, 158syl6eq 2821 . . . . . . 7 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ((1st𝐾)‘𝑤) = ((1st𝐹)‘⟨𝑋, 𝑤⟩))
160156, 159oveq12d 6811 . . . . . 6 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → (⟨((1st𝐾)‘𝑦), ((1st𝐾)‘𝑧)⟩(comp‘𝐸)((1st𝐾)‘𝑤)) = (⟨((1st𝐹)‘⟨𝑋, 𝑦⟩), ((1st𝐹)‘⟨𝑋, 𝑧⟩)⟩(comp‘𝐸)((1st𝐹)‘⟨𝑋, 𝑤⟩)))
1611, 2, 122, 148, 149, 6, 116, 8, 118, 9, 10, 121, 125curf12 17075 . . . . . . 7 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ((𝑧(2nd𝐾)𝑤)‘) = (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑧⟩(2nd𝐹)⟨𝑋, 𝑤⟩)))
162 df-ov 6796 . . . . . . 7 (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑧⟩(2nd𝐹)⟨𝑋, 𝑤⟩)) = ((⟨𝑋, 𝑧⟩(2nd𝐹)⟨𝑋, 𝑤⟩)‘⟨((Id‘𝐶)‘𝑋), ⟩)
163161, 162syl6eq 2821 . . . . . 6 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ((𝑧(2nd𝐾)𝑤)‘) = ((⟨𝑋, 𝑧⟩(2nd𝐹)⟨𝑋, 𝑤⟩)‘⟨((Id‘𝐶)‘𝑋), ⟩))
1641, 2, 122, 148, 149, 6, 116, 8, 117, 9, 10, 118, 124curf12 17075 . . . . . . 7 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ((𝑦(2nd𝐾)𝑧)‘𝑔) = (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔))
165 df-ov 6796 . . . . . . 7 (((Id‘𝐶)‘𝑋)(⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)𝑔) = ((⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)‘⟨((Id‘𝐶)‘𝑋), 𝑔⟩)
166164, 165syl6eq 2821 . . . . . 6 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ((𝑦(2nd𝐾)𝑧)‘𝑔) = ((⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)‘⟨((Id‘𝐶)‘𝑋), 𝑔⟩))
167160, 163, 166oveq123d 6814 . . . . 5 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → (((𝑧(2nd𝐾)𝑤)‘)(⟨((1st𝐾)‘𝑦), ((1st𝐾)‘𝑧)⟩(comp‘𝐸)((1st𝐾)‘𝑤))((𝑦(2nd𝐾)𝑧)‘𝑔)) = (((⟨𝑋, 𝑧⟩(2nd𝐹)⟨𝑋, 𝑤⟩)‘⟨((Id‘𝐶)‘𝑋), ⟩)(⟨((1st𝐹)‘⟨𝑋, 𝑦⟩), ((1st𝐹)‘⟨𝑋, 𝑧⟩)⟩(comp‘𝐸)((1st𝐹)‘⟨𝑋, 𝑤⟩))((⟨𝑋, 𝑦⟩(2nd𝐹)⟨𝑋, 𝑧⟩)‘⟨((Id‘𝐶)‘𝑋), 𝑔⟩)))
168147, 151, 1673eqtr4d 2815 . . . 4 ((𝜑 ∧ (𝑦𝐵𝑧𝐵𝑤𝐵) ∧ (𝑔 ∈ (𝑦(Hom ‘𝐷)𝑧) ∧ ∈ (𝑧(Hom ‘𝐷)𝑤))) → ((𝑦(2nd𝐾)𝑤)‘((⟨𝑦, 𝑧⟩(comp‘𝐷)𝑤)𝑔)) = (((𝑧(2nd𝐾)𝑤)‘)(⟨((1st𝐾)‘𝑦), ((1st𝐾)‘𝑧)⟩(comp‘𝐸)((1st𝐾)‘𝑤))((𝑦(2nd𝐾)𝑧)‘𝑔)))
1696, 22, 9, 23, 24, 25, 26, 27, 4, 30, 44, 50, 97, 115, 168isfuncd 16732 . . 3 (𝜑 → (1st𝐾)(𝐷 Func 𝐸)(2nd𝐾))
170 df-br 4787 . . 3 ((1st𝐾)(𝐷 Func 𝐸)(2nd𝐾) ↔ ⟨(1st𝐾), (2nd𝐾)⟩ ∈ (𝐷 Func 𝐸))
171169, 170sylib 208 . 2 (𝜑 → ⟨(1st𝐾), (2nd𝐾)⟩ ∈ (𝐷 Func 𝐸))
17221, 171eqeltrd 2850 1 (𝜑𝐾 ∈ (𝐷 Func 𝐸))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 382  w3a 1071   = wceq 1631  wcel 2145  Vcvv 3351  cop 4322   class class class wbr 4786  cmpt 4863   × cxp 5247  Rel wrel 5254   Fn wfn 6026  wf 6027  cfv 6031  (class class class)co 6793  cmpt2 6795  1st c1st 7313  2nd c2nd 7314  Basecbs 16064  Hom chom 16160  compcco 16161  Catccat 16532  Idccid 16533   Func cfunc 16721   ×c cxpc 17016   curryF ccurf 17058
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1870  ax-4 1885  ax-5 1991  ax-6 2057  ax-7 2093  ax-8 2147  ax-9 2154  ax-10 2174  ax-11 2190  ax-12 2203  ax-13 2408  ax-ext 2751  ax-rep 4904  ax-sep 4915  ax-nul 4923  ax-pow 4974  ax-pr 5034  ax-un 7096  ax-cnex 10194  ax-resscn 10195  ax-1cn 10196  ax-icn 10197  ax-addcl 10198  ax-addrcl 10199  ax-mulcl 10200  ax-mulrcl 10201  ax-mulcom 10202  ax-addass 10203  ax-mulass 10204  ax-distr 10205  ax-i2m1 10206  ax-1ne0 10207  ax-1rid 10208  ax-rnegex 10209  ax-rrecex 10210  ax-cnre 10211  ax-pre-lttri 10212  ax-pre-lttrn 10213  ax-pre-ltadd 10214  ax-pre-mulgt0 10215
This theorem depends on definitions:  df-bi 197  df-an 383  df-or 835  df-3or 1072  df-3an 1073  df-tru 1634  df-fal 1637  df-ex 1853  df-nf 1858  df-sb 2050  df-eu 2622  df-mo 2623  df-clab 2758  df-cleq 2764  df-clel 2767  df-nfc 2902  df-ne 2944  df-nel 3047  df-ral 3066  df-rex 3067  df-reu 3068  df-rmo 3069  df-rab 3070  df-v 3353  df-sbc 3588  df-csb 3683  df-dif 3726  df-un 3728  df-in 3730  df-ss 3737  df-pss 3739  df-nul 4064  df-if 4226  df-pw 4299  df-sn 4317  df-pr 4319  df-tp 4321  df-op 4323  df-uni 4575  df-int 4612  df-iun 4656  df-br 4787  df-opab 4847  df-mpt 4864  df-tr 4887  df-id 5157  df-eprel 5162  df-po 5170  df-so 5171  df-fr 5208  df-we 5210  df-xp 5255  df-rel 5256  df-cnv 5257  df-co 5258  df-dm 5259  df-rn 5260  df-res 5261  df-ima 5262  df-pred 5823  df-ord 5869  df-on 5870  df-lim 5871  df-suc 5872  df-iota 5994  df-fun 6033  df-fn 6034  df-f 6035  df-f1 6036  df-fo 6037  df-f1o 6038  df-fv 6039  df-riota 6754  df-ov 6796  df-oprab 6797  df-mpt2 6798  df-om 7213  df-1st 7315  df-2nd 7316  df-wrecs 7559  df-recs 7621  df-rdg 7659  df-1o 7713  df-oadd 7717  df-er 7896  df-map 8011  df-ixp 8063  df-en 8110  df-dom 8111  df-sdom 8112  df-fin 8113  df-pnf 10278  df-mnf 10279  df-xr 10280  df-ltxr 10281  df-le 10282  df-sub 10470  df-neg 10471  df-nn 11223  df-2 11281  df-3 11282  df-4 11283  df-5 11284  df-6 11285  df-7 11286  df-8 11287  df-9 11288  df-n0 11495  df-z 11580  df-dec 11696  df-uz 11889  df-fz 12534  df-struct 16066  df-ndx 16067  df-slot 16068  df-base 16070  df-hom 16174  df-cco 16175  df-cat 16536  df-cid 16537  df-func 16725  df-xpc 17020  df-curf 17062
This theorem is referenced by:  curf2cl  17079  curfcl  17080
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