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Theorem funcres2b 16604
Description: Condition for a functor to also be a functor into the restriction. (Contributed by Mario Carneiro, 6-Jan-2017.)
Hypotheses
Ref Expression
funcres2b.a 𝐴 = (Base‘𝐶)
funcres2b.h 𝐻 = (Hom ‘𝐶)
funcres2b.r (𝜑𝑅 ∈ (Subcat‘𝐷))
funcres2b.s (𝜑𝑅 Fn (𝑆 × 𝑆))
funcres2b.1 (𝜑𝐹:𝐴𝑆)
funcres2b.2 ((𝜑 ∧ (𝑥𝐴𝑦𝐴)) → (𝑥𝐺𝑦):𝑌⟶((𝐹𝑥)𝑅(𝐹𝑦)))
Assertion
Ref Expression
funcres2b (𝜑 → (𝐹(𝐶 Func 𝐷)𝐺𝐹(𝐶 Func (𝐷cat 𝑅))𝐺))
Distinct variable groups:   𝑥,𝑦,𝐴   𝑥,𝐶,𝑦   𝑥,𝐷,𝑦   𝜑,𝑥,𝑦   𝑥,𝐹,𝑦   𝑥,𝐺,𝑦   𝑥,𝐻,𝑦   𝑥,𝑅,𝑦
Allowed substitution hints:   𝑆(𝑥,𝑦)   𝑌(𝑥,𝑦)

Proof of Theorem funcres2b
Dummy variables 𝑓 𝑔 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 df-br 4686 . . . . 5 (𝐹(𝐶 Func 𝐷)𝐺 ↔ ⟨𝐹, 𝐺⟩ ∈ (𝐶 Func 𝐷))
2 funcrcl 16570 . . . . 5 (⟨𝐹, 𝐺⟩ ∈ (𝐶 Func 𝐷) → (𝐶 ∈ Cat ∧ 𝐷 ∈ Cat))
31, 2sylbi 207 . . . 4 (𝐹(𝐶 Func 𝐷)𝐺 → (𝐶 ∈ Cat ∧ 𝐷 ∈ Cat))
43simpld 474 . . 3 (𝐹(𝐶 Func 𝐷)𝐺𝐶 ∈ Cat)
54a1i 11 . 2 (𝜑 → (𝐹(𝐶 Func 𝐷)𝐺𝐶 ∈ Cat))
6 df-br 4686 . . . . 5 (𝐹(𝐶 Func (𝐷cat 𝑅))𝐺 ↔ ⟨𝐹, 𝐺⟩ ∈ (𝐶 Func (𝐷cat 𝑅)))
7 funcrcl 16570 . . . . 5 (⟨𝐹, 𝐺⟩ ∈ (𝐶 Func (𝐷cat 𝑅)) → (𝐶 ∈ Cat ∧ (𝐷cat 𝑅) ∈ Cat))
86, 7sylbi 207 . . . 4 (𝐹(𝐶 Func (𝐷cat 𝑅))𝐺 → (𝐶 ∈ Cat ∧ (𝐷cat 𝑅) ∈ Cat))
98simpld 474 . . 3 (𝐹(𝐶 Func (𝐷cat 𝑅))𝐺𝐶 ∈ Cat)
109a1i 11 . 2 (𝜑 → (𝐹(𝐶 Func (𝐷cat 𝑅))𝐺𝐶 ∈ Cat))
11 funcres2b.1 . . . . . . . 8 (𝜑𝐹:𝐴𝑆)
12 funcres2b.r . . . . . . . . 9 (𝜑𝑅 ∈ (Subcat‘𝐷))
13 funcres2b.s . . . . . . . . 9 (𝜑𝑅 Fn (𝑆 × 𝑆))
14 eqid 2651 . . . . . . . . 9 (Base‘𝐷) = (Base‘𝐷)
1512, 13, 14subcss1 16549 . . . . . . . 8 (𝜑𝑆 ⊆ (Base‘𝐷))
1611, 15fssd 6095 . . . . . . 7 (𝜑𝐹:𝐴⟶(Base‘𝐷))
17 eqid 2651 . . . . . . . . . 10 (𝐷cat 𝑅) = (𝐷cat 𝑅)
18 subcrcl 16523 . . . . . . . . . . 11 (𝑅 ∈ (Subcat‘𝐷) → 𝐷 ∈ Cat)
1912, 18syl 17 . . . . . . . . . 10 (𝜑𝐷 ∈ Cat)
2017, 14, 19, 13, 15rescbas 16536 . . . . . . . . 9 (𝜑𝑆 = (Base‘(𝐷cat 𝑅)))
2120feq3d 6070 . . . . . . . 8 (𝜑 → (𝐹:𝐴𝑆𝐹:𝐴⟶(Base‘(𝐷cat 𝑅))))
2211, 21mpbid 222 . . . . . . 7 (𝜑𝐹:𝐴⟶(Base‘(𝐷cat 𝑅)))
2316, 222thd 255 . . . . . 6 (𝜑 → (𝐹:𝐴⟶(Base‘𝐷) ↔ 𝐹:𝐴⟶(Base‘(𝐷cat 𝑅))))
2423adantr 480 . . . . 5 ((𝜑𝐶 ∈ Cat) → (𝐹:𝐴⟶(Base‘𝐷) ↔ 𝐹:𝐴⟶(Base‘(𝐷cat 𝑅))))
25 funcres2b.2 . . . . . . . . . . . . . . . . 17 ((𝜑 ∧ (𝑥𝐴𝑦𝐴)) → (𝑥𝐺𝑦):𝑌⟶((𝐹𝑥)𝑅(𝐹𝑦)))
2625adantlr 751 . . . . . . . . . . . . . . . 16 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → (𝑥𝐺𝑦):𝑌⟶((𝐹𝑥)𝑅(𝐹𝑦)))
27 frn 6091 . . . . . . . . . . . . . . . 16 ((𝑥𝐺𝑦):𝑌⟶((𝐹𝑥)𝑅(𝐹𝑦)) → ran (𝑥𝐺𝑦) ⊆ ((𝐹𝑥)𝑅(𝐹𝑦)))
2826, 27syl 17 . . . . . . . . . . . . . . 15 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → ran (𝑥𝐺𝑦) ⊆ ((𝐹𝑥)𝑅(𝐹𝑦)))
2912ad2antrr 762 . . . . . . . . . . . . . . . 16 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → 𝑅 ∈ (Subcat‘𝐷))
3013ad2antrr 762 . . . . . . . . . . . . . . . 16 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → 𝑅 Fn (𝑆 × 𝑆))
31 eqid 2651 . . . . . . . . . . . . . . . 16 (Hom ‘𝐷) = (Hom ‘𝐷)
3211ad2antrr 762 . . . . . . . . . . . . . . . . 17 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → 𝐹:𝐴𝑆)
33 simprl 809 . . . . . . . . . . . . . . . . 17 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → 𝑥𝐴)
3432, 33ffvelrnd 6400 . . . . . . . . . . . . . . . 16 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → (𝐹𝑥) ∈ 𝑆)
35 simprr 811 . . . . . . . . . . . . . . . . 17 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → 𝑦𝐴)
3632, 35ffvelrnd 6400 . . . . . . . . . . . . . . . 16 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → (𝐹𝑦) ∈ 𝑆)
3729, 30, 31, 34, 36subcss2 16550 . . . . . . . . . . . . . . 15 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → ((𝐹𝑥)𝑅(𝐹𝑦)) ⊆ ((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦)))
3828, 37sstrd 3646 . . . . . . . . . . . . . 14 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → ran (𝑥𝐺𝑦) ⊆ ((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦)))
3938, 282thd 255 . . . . . . . . . . . . 13 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → (ran (𝑥𝐺𝑦) ⊆ ((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦)) ↔ ran (𝑥𝐺𝑦) ⊆ ((𝐹𝑥)𝑅(𝐹𝑦))))
4039anbi2d 740 . . . . . . . . . . . 12 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → (((𝑥𝐺𝑦) Fn (𝑥𝐻𝑦) ∧ ran (𝑥𝐺𝑦) ⊆ ((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦))) ↔ ((𝑥𝐺𝑦) Fn (𝑥𝐻𝑦) ∧ ran (𝑥𝐺𝑦) ⊆ ((𝐹𝑥)𝑅(𝐹𝑦)))))
41 df-f 5930 . . . . . . . . . . . 12 ((𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦)) ↔ ((𝑥𝐺𝑦) Fn (𝑥𝐻𝑦) ∧ ran (𝑥𝐺𝑦) ⊆ ((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦))))
42 df-f 5930 . . . . . . . . . . . 12 ((𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)𝑅(𝐹𝑦)) ↔ ((𝑥𝐺𝑦) Fn (𝑥𝐻𝑦) ∧ ran (𝑥𝐺𝑦) ⊆ ((𝐹𝑥)𝑅(𝐹𝑦))))
4340, 41, 423bitr4g 303 . . . . . . . . . . 11 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → ((𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦)) ↔ (𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)𝑅(𝐹𝑦))))
4417, 14, 19, 13, 15reschom 16537 . . . . . . . . . . . . . 14 (𝜑𝑅 = (Hom ‘(𝐷cat 𝑅)))
4544ad2antrr 762 . . . . . . . . . . . . 13 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → 𝑅 = (Hom ‘(𝐷cat 𝑅)))
4645oveqd 6707 . . . . . . . . . . . 12 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → ((𝐹𝑥)𝑅(𝐹𝑦)) = ((𝐹𝑥)(Hom ‘(𝐷cat 𝑅))(𝐹𝑦)))
4746feq3d 6070 . . . . . . . . . . 11 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → ((𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)𝑅(𝐹𝑦)) ↔ (𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)(Hom ‘(𝐷cat 𝑅))(𝐹𝑦))))
4843, 47bitrd 268 . . . . . . . . . 10 (((𝜑𝐶 ∈ Cat) ∧ (𝑥𝐴𝑦𝐴)) → ((𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦)) ↔ (𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)(Hom ‘(𝐷cat 𝑅))(𝐹𝑦))))
4948ralrimivva 3000 . . . . . . . . 9 ((𝜑𝐶 ∈ Cat) → ∀𝑥𝐴𝑦𝐴 ((𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦)) ↔ (𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)(Hom ‘(𝐷cat 𝑅))(𝐹𝑦))))
50 fveq2 6229 . . . . . . . . . . . . . 14 (𝑧 = ⟨𝑥, 𝑦⟩ → (𝐺𝑧) = (𝐺‘⟨𝑥, 𝑦⟩))
51 df-ov 6693 . . . . . . . . . . . . . 14 (𝑥𝐺𝑦) = (𝐺‘⟨𝑥, 𝑦⟩)
5250, 51syl6eqr 2703 . . . . . . . . . . . . 13 (𝑧 = ⟨𝑥, 𝑦⟩ → (𝐺𝑧) = (𝑥𝐺𝑦))
53 vex 3234 . . . . . . . . . . . . . . . . 17 𝑥 ∈ V
54 vex 3234 . . . . . . . . . . . . . . . . 17 𝑦 ∈ V
5553, 54op1std 7220 . . . . . . . . . . . . . . . 16 (𝑧 = ⟨𝑥, 𝑦⟩ → (1st𝑧) = 𝑥)
5655fveq2d 6233 . . . . . . . . . . . . . . 15 (𝑧 = ⟨𝑥, 𝑦⟩ → (𝐹‘(1st𝑧)) = (𝐹𝑥))
5753, 54op2ndd 7221 . . . . . . . . . . . . . . . 16 (𝑧 = ⟨𝑥, 𝑦⟩ → (2nd𝑧) = 𝑦)
5857fveq2d 6233 . . . . . . . . . . . . . . 15 (𝑧 = ⟨𝑥, 𝑦⟩ → (𝐹‘(2nd𝑧)) = (𝐹𝑦))
5956, 58oveq12d 6708 . . . . . . . . . . . . . 14 (𝑧 = ⟨𝑥, 𝑦⟩ → ((𝐹‘(1st𝑧))(Hom ‘𝐷)(𝐹‘(2nd𝑧))) = ((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦)))
60 fveq2 6229 . . . . . . . . . . . . . . 15 (𝑧 = ⟨𝑥, 𝑦⟩ → (𝐻𝑧) = (𝐻‘⟨𝑥, 𝑦⟩))
61 df-ov 6693 . . . . . . . . . . . . . . 15 (𝑥𝐻𝑦) = (𝐻‘⟨𝑥, 𝑦⟩)
6260, 61syl6eqr 2703 . . . . . . . . . . . . . 14 (𝑧 = ⟨𝑥, 𝑦⟩ → (𝐻𝑧) = (𝑥𝐻𝑦))
6359, 62oveq12d 6708 . . . . . . . . . . . . 13 (𝑧 = ⟨𝑥, 𝑦⟩ → (((𝐹‘(1st𝑧))(Hom ‘𝐷)(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) = (((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦)) ↑𝑚 (𝑥𝐻𝑦)))
6452, 63eleq12d 2724 . . . . . . . . . . . 12 (𝑧 = ⟨𝑥, 𝑦⟩ → ((𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘𝐷)(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) ↔ (𝑥𝐺𝑦) ∈ (((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦)) ↑𝑚 (𝑥𝐻𝑦))))
65 ovex 6718 . . . . . . . . . . . . 13 ((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦)) ∈ V
66 ovex 6718 . . . . . . . . . . . . 13 (𝑥𝐻𝑦) ∈ V
6765, 66elmap 7928 . . . . . . . . . . . 12 ((𝑥𝐺𝑦) ∈ (((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦)) ↑𝑚 (𝑥𝐻𝑦)) ↔ (𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦)))
6864, 67syl6bb 276 . . . . . . . . . . 11 (𝑧 = ⟨𝑥, 𝑦⟩ → ((𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘𝐷)(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) ↔ (𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦))))
6956, 58oveq12d 6708 . . . . . . . . . . . . . 14 (𝑧 = ⟨𝑥, 𝑦⟩ → ((𝐹‘(1st𝑧))(Hom ‘(𝐷cat 𝑅))(𝐹‘(2nd𝑧))) = ((𝐹𝑥)(Hom ‘(𝐷cat 𝑅))(𝐹𝑦)))
7069, 62oveq12d 6708 . . . . . . . . . . . . 13 (𝑧 = ⟨𝑥, 𝑦⟩ → (((𝐹‘(1st𝑧))(Hom ‘(𝐷cat 𝑅))(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) = (((𝐹𝑥)(Hom ‘(𝐷cat 𝑅))(𝐹𝑦)) ↑𝑚 (𝑥𝐻𝑦)))
7152, 70eleq12d 2724 . . . . . . . . . . . 12 (𝑧 = ⟨𝑥, 𝑦⟩ → ((𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘(𝐷cat 𝑅))(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) ↔ (𝑥𝐺𝑦) ∈ (((𝐹𝑥)(Hom ‘(𝐷cat 𝑅))(𝐹𝑦)) ↑𝑚 (𝑥𝐻𝑦))))
72 ovex 6718 . . . . . . . . . . . . 13 ((𝐹𝑥)(Hom ‘(𝐷cat 𝑅))(𝐹𝑦)) ∈ V
7372, 66elmap 7928 . . . . . . . . . . . 12 ((𝑥𝐺𝑦) ∈ (((𝐹𝑥)(Hom ‘(𝐷cat 𝑅))(𝐹𝑦)) ↑𝑚 (𝑥𝐻𝑦)) ↔ (𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)(Hom ‘(𝐷cat 𝑅))(𝐹𝑦)))
7471, 73syl6bb 276 . . . . . . . . . . 11 (𝑧 = ⟨𝑥, 𝑦⟩ → ((𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘(𝐷cat 𝑅))(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) ↔ (𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)(Hom ‘(𝐷cat 𝑅))(𝐹𝑦))))
7568, 74bibi12d 334 . . . . . . . . . 10 (𝑧 = ⟨𝑥, 𝑦⟩ → (((𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘𝐷)(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) ↔ (𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘(𝐷cat 𝑅))(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧))) ↔ ((𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦)) ↔ (𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)(Hom ‘(𝐷cat 𝑅))(𝐹𝑦)))))
7675ralxp 5296 . . . . . . . . 9 (∀𝑧 ∈ (𝐴 × 𝐴)((𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘𝐷)(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) ↔ (𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘(𝐷cat 𝑅))(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧))) ↔ ∀𝑥𝐴𝑦𝐴 ((𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)(Hom ‘𝐷)(𝐹𝑦)) ↔ (𝑥𝐺𝑦):(𝑥𝐻𝑦)⟶((𝐹𝑥)(Hom ‘(𝐷cat 𝑅))(𝐹𝑦))))
7749, 76sylibr 224 . . . . . . . 8 ((𝜑𝐶 ∈ Cat) → ∀𝑧 ∈ (𝐴 × 𝐴)((𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘𝐷)(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) ↔ (𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘(𝐷cat 𝑅))(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧))))
78 ralbi 3097 . . . . . . . 8 (∀𝑧 ∈ (𝐴 × 𝐴)((𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘𝐷)(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) ↔ (𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘(𝐷cat 𝑅))(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧))) → (∀𝑧 ∈ (𝐴 × 𝐴)(𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘𝐷)(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) ↔ ∀𝑧 ∈ (𝐴 × 𝐴)(𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘(𝐷cat 𝑅))(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧))))
7977, 78syl 17 . . . . . . 7 ((𝜑𝐶 ∈ Cat) → (∀𝑧 ∈ (𝐴 × 𝐴)(𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘𝐷)(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) ↔ ∀𝑧 ∈ (𝐴 × 𝐴)(𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘(𝐷cat 𝑅))(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧))))
80793anbi3d 1445 . . . . . 6 ((𝜑𝐶 ∈ Cat) → ((𝐺 ∈ V ∧ 𝐺 Fn (𝐴 × 𝐴) ∧ ∀𝑧 ∈ (𝐴 × 𝐴)(𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘𝐷)(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧))) ↔ (𝐺 ∈ V ∧ 𝐺 Fn (𝐴 × 𝐴) ∧ ∀𝑧 ∈ (𝐴 × 𝐴)(𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘(𝐷cat 𝑅))(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)))))
81 elixp2 7954 . . . . . 6 (𝐺X𝑧 ∈ (𝐴 × 𝐴)(((𝐹‘(1st𝑧))(Hom ‘𝐷)(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) ↔ (𝐺 ∈ V ∧ 𝐺 Fn (𝐴 × 𝐴) ∧ ∀𝑧 ∈ (𝐴 × 𝐴)(𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘𝐷)(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧))))
82 elixp2 7954 . . . . . 6 (𝐺X𝑧 ∈ (𝐴 × 𝐴)(((𝐹‘(1st𝑧))(Hom ‘(𝐷cat 𝑅))(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) ↔ (𝐺 ∈ V ∧ 𝐺 Fn (𝐴 × 𝐴) ∧ ∀𝑧 ∈ (𝐴 × 𝐴)(𝐺𝑧) ∈ (((𝐹‘(1st𝑧))(Hom ‘(𝐷cat 𝑅))(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧))))
8380, 81, 823bitr4g 303 . . . . 5 ((𝜑𝐶 ∈ Cat) → (𝐺X𝑧 ∈ (𝐴 × 𝐴)(((𝐹‘(1st𝑧))(Hom ‘𝐷)(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) ↔ 𝐺X𝑧 ∈ (𝐴 × 𝐴)(((𝐹‘(1st𝑧))(Hom ‘(𝐷cat 𝑅))(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧))))
8412ad2antrr 762 . . . . . . . . 9 (((𝜑𝐶 ∈ Cat) ∧ 𝑥𝐴) → 𝑅 ∈ (Subcat‘𝐷))
8513ad2antrr 762 . . . . . . . . 9 (((𝜑𝐶 ∈ Cat) ∧ 𝑥𝐴) → 𝑅 Fn (𝑆 × 𝑆))
86 eqid 2651 . . . . . . . . 9 (Id‘𝐷) = (Id‘𝐷)
8711adantr 480 . . . . . . . . . 10 ((𝜑𝐶 ∈ Cat) → 𝐹:𝐴𝑆)
8887ffvelrnda 6399 . . . . . . . . 9 (((𝜑𝐶 ∈ Cat) ∧ 𝑥𝐴) → (𝐹𝑥) ∈ 𝑆)
8917, 84, 85, 86, 88subcid 16554 . . . . . . . 8 (((𝜑𝐶 ∈ Cat) ∧ 𝑥𝐴) → ((Id‘𝐷)‘(𝐹𝑥)) = ((Id‘(𝐷cat 𝑅))‘(𝐹𝑥)))
9089eqeq2d 2661 . . . . . . 7 (((𝜑𝐶 ∈ Cat) ∧ 𝑥𝐴) → (((𝑥𝐺𝑥)‘((Id‘𝐶)‘𝑥)) = ((Id‘𝐷)‘(𝐹𝑥)) ↔ ((𝑥𝐺𝑥)‘((Id‘𝐶)‘𝑥)) = ((Id‘(𝐷cat 𝑅))‘(𝐹𝑥))))
91 eqid 2651 . . . . . . . . . . . . . 14 (comp‘𝐷) = (comp‘𝐷)
9217, 14, 19, 13, 15, 91rescco 16539 . . . . . . . . . . . . 13 (𝜑 → (comp‘𝐷) = (comp‘(𝐷cat 𝑅)))
9392ad2antrr 762 . . . . . . . . . . . 12 (((𝜑𝐶 ∈ Cat) ∧ 𝑥𝐴) → (comp‘𝐷) = (comp‘(𝐷cat 𝑅)))
9493oveqd 6707 . . . . . . . . . . 11 (((𝜑𝐶 ∈ Cat) ∧ 𝑥𝐴) → (⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘𝐷)(𝐹𝑧)) = (⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘(𝐷cat 𝑅))(𝐹𝑧)))
9594oveqd 6707 . . . . . . . . . 10 (((𝜑𝐶 ∈ Cat) ∧ 𝑥𝐴) → (((𝑦𝐺𝑧)‘𝑔)(⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘𝐷)(𝐹𝑧))((𝑥𝐺𝑦)‘𝑓)) = (((𝑦𝐺𝑧)‘𝑔)(⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘(𝐷cat 𝑅))(𝐹𝑧))((𝑥𝐺𝑦)‘𝑓)))
9695eqeq2d 2661 . . . . . . . . 9 (((𝜑𝐶 ∈ Cat) ∧ 𝑥𝐴) → (((𝑥𝐺𝑧)‘(𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓)) = (((𝑦𝐺𝑧)‘𝑔)(⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘𝐷)(𝐹𝑧))((𝑥𝐺𝑦)‘𝑓)) ↔ ((𝑥𝐺𝑧)‘(𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓)) = (((𝑦𝐺𝑧)‘𝑔)(⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘(𝐷cat 𝑅))(𝐹𝑧))((𝑥𝐺𝑦)‘𝑓))))
97962ralbidv 3018 . . . . . . . 8 (((𝜑𝐶 ∈ Cat) ∧ 𝑥𝐴) → (∀𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)((𝑥𝐺𝑧)‘(𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓)) = (((𝑦𝐺𝑧)‘𝑔)(⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘𝐷)(𝐹𝑧))((𝑥𝐺𝑦)‘𝑓)) ↔ ∀𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)((𝑥𝐺𝑧)‘(𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓)) = (((𝑦𝐺𝑧)‘𝑔)(⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘(𝐷cat 𝑅))(𝐹𝑧))((𝑥𝐺𝑦)‘𝑓))))
98972ralbidv 3018 . . . . . . 7 (((𝜑𝐶 ∈ Cat) ∧ 𝑥𝐴) → (∀𝑦𝐴𝑧𝐴𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)((𝑥𝐺𝑧)‘(𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓)) = (((𝑦𝐺𝑧)‘𝑔)(⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘𝐷)(𝐹𝑧))((𝑥𝐺𝑦)‘𝑓)) ↔ ∀𝑦𝐴𝑧𝐴𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)((𝑥𝐺𝑧)‘(𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓)) = (((𝑦𝐺𝑧)‘𝑔)(⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘(𝐷cat 𝑅))(𝐹𝑧))((𝑥𝐺𝑦)‘𝑓))))
9990, 98anbi12d 747 . . . . . 6 (((𝜑𝐶 ∈ Cat) ∧ 𝑥𝐴) → ((((𝑥𝐺𝑥)‘((Id‘𝐶)‘𝑥)) = ((Id‘𝐷)‘(𝐹𝑥)) ∧ ∀𝑦𝐴𝑧𝐴𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)((𝑥𝐺𝑧)‘(𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓)) = (((𝑦𝐺𝑧)‘𝑔)(⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘𝐷)(𝐹𝑧))((𝑥𝐺𝑦)‘𝑓))) ↔ (((𝑥𝐺𝑥)‘((Id‘𝐶)‘𝑥)) = ((Id‘(𝐷cat 𝑅))‘(𝐹𝑥)) ∧ ∀𝑦𝐴𝑧𝐴𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)((𝑥𝐺𝑧)‘(𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓)) = (((𝑦𝐺𝑧)‘𝑔)(⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘(𝐷cat 𝑅))(𝐹𝑧))((𝑥𝐺𝑦)‘𝑓)))))
10099ralbidva 3014 . . . . 5 ((𝜑𝐶 ∈ Cat) → (∀𝑥𝐴 (((𝑥𝐺𝑥)‘((Id‘𝐶)‘𝑥)) = ((Id‘𝐷)‘(𝐹𝑥)) ∧ ∀𝑦𝐴𝑧𝐴𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)((𝑥𝐺𝑧)‘(𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓)) = (((𝑦𝐺𝑧)‘𝑔)(⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘𝐷)(𝐹𝑧))((𝑥𝐺𝑦)‘𝑓))) ↔ ∀𝑥𝐴 (((𝑥𝐺𝑥)‘((Id‘𝐶)‘𝑥)) = ((Id‘(𝐷cat 𝑅))‘(𝐹𝑥)) ∧ ∀𝑦𝐴𝑧𝐴𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)((𝑥𝐺𝑧)‘(𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓)) = (((𝑦𝐺𝑧)‘𝑔)(⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘(𝐷cat 𝑅))(𝐹𝑧))((𝑥𝐺𝑦)‘𝑓)))))
10124, 83, 1003anbi123d 1439 . . . 4 ((𝜑𝐶 ∈ Cat) → ((𝐹:𝐴⟶(Base‘𝐷) ∧ 𝐺X𝑧 ∈ (𝐴 × 𝐴)(((𝐹‘(1st𝑧))(Hom ‘𝐷)(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) ∧ ∀𝑥𝐴 (((𝑥𝐺𝑥)‘((Id‘𝐶)‘𝑥)) = ((Id‘𝐷)‘(𝐹𝑥)) ∧ ∀𝑦𝐴𝑧𝐴𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)((𝑥𝐺𝑧)‘(𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓)) = (((𝑦𝐺𝑧)‘𝑔)(⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘𝐷)(𝐹𝑧))((𝑥𝐺𝑦)‘𝑓)))) ↔ (𝐹:𝐴⟶(Base‘(𝐷cat 𝑅)) ∧ 𝐺X𝑧 ∈ (𝐴 × 𝐴)(((𝐹‘(1st𝑧))(Hom ‘(𝐷cat 𝑅))(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) ∧ ∀𝑥𝐴 (((𝑥𝐺𝑥)‘((Id‘𝐶)‘𝑥)) = ((Id‘(𝐷cat 𝑅))‘(𝐹𝑥)) ∧ ∀𝑦𝐴𝑧𝐴𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)((𝑥𝐺𝑧)‘(𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓)) = (((𝑦𝐺𝑧)‘𝑔)(⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘(𝐷cat 𝑅))(𝐹𝑧))((𝑥𝐺𝑦)‘𝑓))))))
102 funcres2b.a . . . . 5 𝐴 = (Base‘𝐶)
103 funcres2b.h . . . . 5 𝐻 = (Hom ‘𝐶)
104 eqid 2651 . . . . 5 (Id‘𝐶) = (Id‘𝐶)
105 eqid 2651 . . . . 5 (comp‘𝐶) = (comp‘𝐶)
106 simpr 476 . . . . 5 ((𝜑𝐶 ∈ Cat) → 𝐶 ∈ Cat)
10719adantr 480 . . . . 5 ((𝜑𝐶 ∈ Cat) → 𝐷 ∈ Cat)
108102, 14, 103, 31, 104, 86, 105, 91, 106, 107isfunc 16571 . . . 4 ((𝜑𝐶 ∈ Cat) → (𝐹(𝐶 Func 𝐷)𝐺 ↔ (𝐹:𝐴⟶(Base‘𝐷) ∧ 𝐺X𝑧 ∈ (𝐴 × 𝐴)(((𝐹‘(1st𝑧))(Hom ‘𝐷)(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) ∧ ∀𝑥𝐴 (((𝑥𝐺𝑥)‘((Id‘𝐶)‘𝑥)) = ((Id‘𝐷)‘(𝐹𝑥)) ∧ ∀𝑦𝐴𝑧𝐴𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)((𝑥𝐺𝑧)‘(𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓)) = (((𝑦𝐺𝑧)‘𝑔)(⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘𝐷)(𝐹𝑧))((𝑥𝐺𝑦)‘𝑓))))))
109 eqid 2651 . . . . 5 (Base‘(𝐷cat 𝑅)) = (Base‘(𝐷cat 𝑅))
110 eqid 2651 . . . . 5 (Hom ‘(𝐷cat 𝑅)) = (Hom ‘(𝐷cat 𝑅))
111 eqid 2651 . . . . 5 (Id‘(𝐷cat 𝑅)) = (Id‘(𝐷cat 𝑅))
112 eqid 2651 . . . . 5 (comp‘(𝐷cat 𝑅)) = (comp‘(𝐷cat 𝑅))
11317, 12subccat 16555 . . . . . 6 (𝜑 → (𝐷cat 𝑅) ∈ Cat)
114113adantr 480 . . . . 5 ((𝜑𝐶 ∈ Cat) → (𝐷cat 𝑅) ∈ Cat)
115102, 109, 103, 110, 104, 111, 105, 112, 106, 114isfunc 16571 . . . 4 ((𝜑𝐶 ∈ Cat) → (𝐹(𝐶 Func (𝐷cat 𝑅))𝐺 ↔ (𝐹:𝐴⟶(Base‘(𝐷cat 𝑅)) ∧ 𝐺X𝑧 ∈ (𝐴 × 𝐴)(((𝐹‘(1st𝑧))(Hom ‘(𝐷cat 𝑅))(𝐹‘(2nd𝑧))) ↑𝑚 (𝐻𝑧)) ∧ ∀𝑥𝐴 (((𝑥𝐺𝑥)‘((Id‘𝐶)‘𝑥)) = ((Id‘(𝐷cat 𝑅))‘(𝐹𝑥)) ∧ ∀𝑦𝐴𝑧𝐴𝑓 ∈ (𝑥𝐻𝑦)∀𝑔 ∈ (𝑦𝐻𝑧)((𝑥𝐺𝑧)‘(𝑔(⟨𝑥, 𝑦⟩(comp‘𝐶)𝑧)𝑓)) = (((𝑦𝐺𝑧)‘𝑔)(⟨(𝐹𝑥), (𝐹𝑦)⟩(comp‘(𝐷cat 𝑅))(𝐹𝑧))((𝑥𝐺𝑦)‘𝑓))))))
116101, 108, 1153bitr4d 300 . . 3 ((𝜑𝐶 ∈ Cat) → (𝐹(𝐶 Func 𝐷)𝐺𝐹(𝐶 Func (𝐷cat 𝑅))𝐺))
117116ex 449 . 2 (𝜑 → (𝐶 ∈ Cat → (𝐹(𝐶 Func 𝐷)𝐺𝐹(𝐶 Func (𝐷cat 𝑅))𝐺)))
1185, 10, 117pm5.21ndd 368 1 (𝜑 → (𝐹(𝐶 Func 𝐷)𝐺𝐹(𝐶 Func (𝐷cat 𝑅))𝐺))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 196  wa 383  w3a 1054   = wceq 1523  wcel 2030  wral 2941  Vcvv 3231  wss 3607  cop 4216   class class class wbr 4685   × cxp 5141  ran crn 5144   Fn wfn 5921  wf 5922  cfv 5926  (class class class)co 6690  1st c1st 7208  2nd c2nd 7209  𝑚 cmap 7899  Xcixp 7950  Basecbs 15904  Hom chom 15999  compcco 16000  Catccat 16372  Idccid 16373  cat cresc 16515  Subcatcsubc 16516   Func cfunc 16561
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-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
This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3or 1055  df-3an 1056  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-uni 4469  df-iun 4554  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-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-riota 6651  df-ov 6693  df-oprab 6694  df-mpt2 6695  df-om 7108  df-1st 7210  df-2nd 7211  df-wrecs 7452  df-recs 7513  df-rdg 7551  df-er 7787  df-map 7901  df-pm 7902  df-ixp 7951  df-en 7998  df-dom 7999  df-sdom 8000  df-pnf 10114  df-mnf 10115  df-xr 10116  df-ltxr 10117  df-le 10118  df-sub 10306  df-neg 10307  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-z 11416  df-dec 11532  df-ndx 15907  df-slot 15908  df-base 15910  df-sets 15911  df-ress 15912  df-hom 16013  df-cco 16014  df-cat 16376  df-cid 16377  df-homf 16378  df-ssc 16517  df-resc 16518  df-subc 16519  df-func 16565
This theorem is referenced by:  funcres2  16605  funcres2c  16608  fthres2b  16637
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