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Theorem initoeu2lem2 17270
Description: Lemma 2 for initoeu2 17271. (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 7172 . . . . . . . . . 10 (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ V
2 eleq1 2880 . . . . . . . . . . 11 (𝑔 = (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) → (𝑔 ∈ (𝐵𝐻𝐷) ↔ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷)))
32spcegv 3548 . . . . . . . . . 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 1132 . . . . . . 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 1108 . . . 4 ((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) → ∃𝑔 𝑔 ∈ (𝐵𝐻𝐷))
109adantr 484 . . 3 (((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) → ∃𝑔 𝑔 ∈ (𝐵𝐻𝐷))
11 simpll1 1209 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ 𝑔 ∈ (𝐵𝐻𝐷)) → 𝜑)
12 simpll2 1210 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ 𝑔 ∈ (𝐵𝐻𝐷)) → (𝐴𝑋𝐵𝑋𝐷𝑋))
13 3simpb 1146 . . . . . . . . . . 11 ((𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷)) → (𝐾 ∈ (𝐵𝐼𝐴) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷)))
14133ad2ant3 1132 . . . . . . . . . 10 ((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) → (𝐾 ∈ (𝐵𝐼𝐴) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷)))
1514adantr 484 . . . . . . . . 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 484 . . . . . . . 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 768 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ 𝑔 ∈ (𝐵𝐻𝐷)) → ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷))
18 simpl32 1252 . . . . . . . . 9 (((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) → 𝐹 ∈ (𝐴𝐻𝐷))
1918adantr 484 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ 𝑔 ∈ (𝐵𝐻𝐷)) → 𝐹 ∈ (𝐴𝐻𝐷))
20 simpr 488 . . . . . . . 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 17269 . . . . . . . . 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 410 . . . . . . . 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 1382 . . . . . . 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 716 . . . . . 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 1209 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ ∈ (𝐵𝐻𝐷)) → 𝜑)
32 simpll2 1210 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ ∈ (𝐵𝐻𝐷)) → (𝐴𝑋𝐵𝑋𝐷𝑋))
3315adantr 484 . . . . . . . 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 768 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ ∈ (𝐵𝐻𝐷)) → ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷))
3518adantr 484 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ ∈ (𝐵𝐻𝐷)) → 𝐹 ∈ (𝐴𝐻𝐷))
36 simpr 488 . . . . . . . 8 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ ∈ (𝐵𝐻𝐷)) → ∈ (𝐵𝐻𝐷))
3721, 22, 23, 24, 25, 26initoeu2lem1 17269 . . . . . . . . 9 ((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) → ((∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ ∈ (𝐵𝐻𝐷)) → = (𝐹(⟨𝐵, 𝐴 𝐷)𝐾)))
3837imp 410 . . . . . . . 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 1382 . . . . . . 7 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ ∈ (𝐵𝐻𝐷)) → = (𝐹(⟨𝐵, 𝐴 𝐷)𝐾))
4039adantrl 715 . . . . . 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 2839 . . . . 5 ((((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) ∧ (𝑔 ∈ (𝐵𝐻𝐷) ∧ ∈ (𝐵𝐻𝐷))) → 𝑔 = )
4241ex 416 . . . 4 (((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) → ((𝑔 ∈ (𝐵𝐻𝐷) ∧ ∈ (𝐵𝐻𝐷)) → 𝑔 = ))
4342alrimivv 1929 . . 3 (((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) → ∀𝑔((𝑔 ∈ (𝐵𝐻𝐷) ∧ ∈ (𝐵𝐻𝐷)) → 𝑔 = ))
44 eleq1 2880 . . . 4 (𝑔 = → (𝑔 ∈ (𝐵𝐻𝐷) ↔ ∈ (𝐵𝐻𝐷)))
4544eu4 2679 . . 3 (∃!𝑔 𝑔 ∈ (𝐵𝐻𝐷) ↔ (∃𝑔 𝑔 ∈ (𝐵𝐻𝐷) ∧ ∀𝑔((𝑔 ∈ (𝐵𝐻𝐷) ∧ ∈ (𝐵𝐻𝐷)) → 𝑔 = )))
4610, 43, 45sylanbrc 586 . 2 (((𝜑 ∧ (𝐴𝑋𝐵𝑋𝐷𝑋) ∧ (𝐾 ∈ (𝐵𝐼𝐴) ∧ 𝐹 ∈ (𝐴𝐻𝐷) ∧ (𝐹(⟨𝐵, 𝐴 𝐷)𝐾) ∈ (𝐵𝐻𝐷))) ∧ ∃!𝑓 𝑓 ∈ (𝐴𝐻𝐷)) → ∃!𝑔 𝑔 ∈ (𝐵𝐻𝐷))
4746ex 416 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 399  w3a 1084  wal 1536   = wceq 1538  wex 1781  wcel 2112  ∃!weu 2631  Vcvv 3444  cop 4534  cfv 6328  (class class class)co 7139  Basecbs 16478  Hom chom 16571  compcco 16572  Catccat 16930  Isociso 17011  InitOcinito 17243
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2114  ax-9 2122  ax-10 2143  ax-11 2159  ax-12 2176  ax-ext 2773  ax-rep 5157  ax-sep 5170  ax-nul 5177  ax-pow 5234  ax-pr 5298  ax-un 7445
This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3an 1086  df-tru 1541  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2601  df-eu 2632  df-clab 2780  df-cleq 2794  df-clel 2873  df-nfc 2941  df-ne 2991  df-ral 3114  df-rex 3115  df-reu 3116  df-rmo 3117  df-rab 3118  df-v 3446  df-sbc 3724  df-csb 3832  df-dif 3887  df-un 3889  df-in 3891  df-ss 3901  df-nul 4247  df-if 4429  df-pw 4502  df-sn 4529  df-pr 4531  df-op 4535  df-uni 4804  df-iun 4886  df-br 5034  df-opab 5096  df-mpt 5114  df-id 5428  df-xp 5529  df-rel 5530  df-cnv 5531  df-co 5532  df-dm 5533  df-rn 5534  df-res 5535  df-ima 5536  df-iota 6287  df-fun 6330  df-fn 6331  df-f 6332  df-f1 6333  df-fo 6334  df-f1o 6335  df-fv 6336  df-riota 7097  df-ov 7142  df-oprab 7143  df-mpo 7144  df-1st 7675  df-2nd 7676  df-cat 16934  df-cid 16935  df-sect 17012  df-inv 17013  df-iso 17014
This theorem is referenced by:  initoeu2  17271
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