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Theorem initoeu2lem2 17646
Description: Lemma 2 for initoeu2 17647. (Contributed by AV, 10-Apr-2020.)
Hypotheses
Ref Expression
initoeu1.c (𝜑𝐶 ∈ Cat)
initoeu1.a (𝜑𝐴 ∈ (InitO‘𝐶))
initoeu2lem.x 𝑋 = (Base‘𝐶)
initoeu2lem.h 𝐻 = (Hom ‘𝐶)
initoeu2lem.i 𝐼 = (Iso‘𝐶)
initoeu2lem.o = (comp‘𝐶)
Assertion
Ref Expression
initoeu2lem2 ((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) → (∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷) → ∃!𝑔 𝑔 ∈ (𝐵𝐻𝐷)))
Distinct variable groups:   𝐴,𝑔,𝑓   𝐵,𝑔,𝑓   𝐶,𝑓,𝑔   𝜑,𝑔,𝑓   𝐷,𝑓   𝑓,𝐹   𝑓,𝐼   𝑓,𝐾   𝑓,𝐻   𝑓,𝑋   ,𝑓   𝐷,𝑔   𝑔,𝐹   𝑔,𝐻   𝑔,𝐼   𝑔,𝐾   𝑔,𝑋   ,𝑔

Proof of Theorem initoeu2lem2
Dummy variable is distinct from all other variables.
StepHypRef Expression
1 ovex 7288 . . . . . . . . . 10 (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ V
2 eleq1 2826 . . . . . . . . . . 11 (𝑔 = (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) → (𝑔 ∈ (𝐵𝐻𝐷) ↔ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷)))
32spcegv 3526 . . . . . . . . . 10 ((𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ V → ((𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷) → ∃𝑔 𝑔 ∈ (𝐵𝐻𝐷)))
41, 3mp1i 13 . . . . . . . . 9 (𝜑 → ((𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷) → ∃𝑔 𝑔 ∈ (𝐵𝐻𝐷)))
54com12 32 . . . . . . . 8 ((𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷) → (𝜑 → ∃𝑔 𝑔 ∈ (𝐵𝐻𝐷)))
653ad2ant3 1133 . . . . . . 7 ((𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷)) → (𝜑 → ∃𝑔 𝑔 ∈ (𝐵𝐻𝐷)))
76com12 32 . . . . . 6 (𝜑 → ((𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷)) → ∃𝑔 𝑔 ∈ (𝐵𝐻𝐷)))
87a1d 25 . . . . 5 (𝜑 → ((𝐴𝑋𝐵𝑋𝐷𝑋) → ((𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷)) → ∃𝑔 𝑔 ∈ (𝐵𝐻𝐷))))
983imp 1109 . . . 4 ((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) → ∃𝑔 𝑔 ∈ (𝐵𝐻𝐷))
109adantr 480 . . 3 (((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) → ∃𝑔 𝑔 ∈ (𝐵𝐻𝐷))
11 simpll1 1210 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ 𝑔 ∈ (𝐵𝐻𝐷)) → 𝜑)
12 simpll2 1211 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ 𝑔 ∈ (𝐵𝐻𝐷)) → (𝐴𝑋𝐵𝑋𝐷𝑋))
13 3simpb 1147 . . . . . . . . . . 11 ((𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷)) → (𝐾 ∈ (𝐵𝐼𝐴) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷)))
14133ad2ant3 1133 . . . . . . . . . 10 ((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) → (𝐾 ∈ (𝐵𝐼𝐴) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷)))
1514adantr 480 . . . . . . . . 9 (((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) → (𝐾 ∈ (𝐵𝐼𝐴) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷)))
1615adantr 480 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ 𝑔 ∈ (𝐵𝐻𝐷)) → (𝐾 ∈ (𝐵𝐼𝐴) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷)))
17 simplr 765 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ 𝑔 ∈ (𝐵𝐻𝐷)) → ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷))
18 simpl32 1253 . . . . . . . . 9 (((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) → 𝐹 ∈ (𝐴𝐻𝐷))
1918adantr 480 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ 𝑔 ∈ (𝐵𝐻𝐷)) → 𝐹 ∈ (𝐴𝐻𝐷))
20 simpr 484 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ 𝑔 ∈ (𝐵𝐻𝐷)) → 𝑔 ∈ (𝐵𝐻𝐷))
21 initoeu1.c . . . . . . . . . 10 (𝜑𝐶 ∈ Cat)
22 initoeu1.a . . . . . . . . . 10 (𝜑𝐴 ∈ (InitO‘𝐶))
23 initoeu2lem.x . . . . . . . . . 10 𝑋 = (Base‘𝐶)
24 initoeu2lem.h . . . . . . . . . 10 𝐻 = (Hom ‘𝐶)
25 initoeu2lem.i . . . . . . . . . 10 𝐼 = (Iso‘𝐶)
26 initoeu2lem.o . . . . . . . . . 10 = (comp‘𝐶)
2721, 22, 23, 24, 25, 26initoeu2lem1 17645 . . . . . . . . 9 ((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) → ((∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ 𝑔 ∈ (𝐵𝐻𝐷)) → 𝑔 = (𝐹(⟨𝐵, 𝐴 𝐷)𝐾)))
2827imp 406 . . . . . . . 8 (((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ (∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ 𝑔 ∈ (𝐵𝐻𝐷))) → 𝑔 = (𝐹(⟨𝐵, 𝐴 𝐷)𝐾))
2911, 12, 16, 17, 19, 20, 28syl33anc 1383 . . . . . . 7 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ 𝑔 ∈ (𝐵𝐻𝐷)) → 𝑔 = (𝐹(⟨𝐵, 𝐴 𝐷)𝐾))
3029adantrr 713 . . . . . 6 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ (𝑔 ∈ (𝐵𝐻𝐷) ∧ ∈ (𝐵𝐻𝐷))) → 𝑔 = (𝐹(⟨𝐵, 𝐴 𝐷)𝐾))
31 simpll1 1210 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ ∈ (𝐵𝐻𝐷)) → 𝜑)
32 simpll2 1211 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ ∈ (𝐵𝐻𝐷)) → (𝐴𝑋𝐵𝑋𝐷𝑋))
3315adantr 480 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ ∈ (𝐵𝐻𝐷)) → (𝐾 ∈ (𝐵𝐼𝐴) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷)))
34 simplr 765 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ ∈ (𝐵𝐻𝐷)) → ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷))
3518adantr 480 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ ∈ (𝐵𝐻𝐷)) → 𝐹 ∈ (𝐴𝐻𝐷))
36 simpr 484 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ ∈ (𝐵𝐻𝐷)) → ∈ (𝐵𝐻𝐷))
3721, 22, 23, 24, 25, 26initoeu2lem1 17645 . . . . . . . . 9 ((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) → ((∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ ∈ (𝐵𝐻𝐷)) → = (𝐹(⟨𝐵, 𝐴 𝐷)𝐾)))
3837imp 406 . . . . . . . 8 (((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ (∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ ∈ (𝐵𝐻𝐷))) → = (𝐹(⟨𝐵, 𝐴 𝐷)𝐾))
3931, 32, 33, 34, 35, 36, 38syl33anc 1383 . . . . . . 7 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ ∈ (𝐵𝐻𝐷)) → = (𝐹(⟨𝐵, 𝐴 𝐷)𝐾))
4039adantrl 712 . . . . . 6 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ (𝑔 ∈ (𝐵𝐻𝐷) ∧ ∈ (𝐵𝐻𝐷))) → = (𝐹(⟨𝐵, 𝐴 𝐷)𝐾))
4130, 40eqtr4d 2781 . . . . 5 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ (𝑔 ∈ (𝐵𝐻𝐷) ∧ ∈ (𝐵𝐻𝐷))) → 𝑔 = )
4241ex 412 . . . 4 (((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) → ((𝑔 ∈ (𝐵𝐻𝐷) ∧ ∈ (𝐵𝐻𝐷)) → 𝑔 = ))
4342alrimivv 1932 . . 3 (((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) → ∀𝑔((𝑔 ∈ (𝐵𝐻𝐷) ∧ ∈ (𝐵𝐻𝐷)) → 𝑔 = ))
44 eleq1 2826 . . . 4 (𝑔 = → (𝑔 ∈ (𝐵𝐻𝐷) ↔ ∈ (𝐵𝐻𝐷)))
4544eu4 2617 . . 3 (∃!𝑔 𝑔 ∈ (𝐵𝐻𝐷) ↔ (∃𝑔 𝑔 ∈ (𝐵𝐻𝐷) ∧ ∀𝑔((𝑔 ∈ (𝐵𝐻𝐷) ∧ ∈ (𝐵𝐻𝐷)) → 𝑔 = )))
4610, 43, 45sylanbrc 582 . 2 (((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) → ∃!𝑔 𝑔 ∈ (𝐵𝐻𝐷))
4746ex 412 1 ((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) → (∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷) → ∃!𝑔 𝑔 ∈ (𝐵𝐻𝐷)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395  w3a 1085  wal 1537   = wceq 1539  wex 1783  wcel 2108  ∃!weu 2568  Vcvv 3422  cop 4564  cfv 6418  (class class class)co 7255  Basecbs 16840  Hom chom 16899  compcco 16900  Catccat 17290  Isociso 17375  InitOcinito 17612
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-rep 5205  ax-sep 5218  ax-nul 5225  ax-pow 5283  ax-pr 5347  ax-un 7566
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-ral 3068  df-rex 3069  df-reu 3070  df-rmo 3071  df-rab 3072  df-v 3424  df-sbc 3712  df-csb 3829  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-op 4565  df-uni 4837  df-iun 4923  df-br 5071  df-opab 5133  df-mpt 5154  df-id 5480  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-iota 6376  df-fun 6420  df-fn 6421  df-f 6422  df-f1 6423  df-fo 6424  df-f1o 6425  df-fv 6426  df-riota 7212  df-ov 7258  df-oprab 7259  df-mpo 7260  df-1st 7804  df-2nd 7805  df-cat 17294  df-cid 17295  df-sect 17376  df-inv 17377  df-iso 17378
This theorem is referenced by:  initoeu2  17647
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