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Theorem monpropd 17366
Description: If two categories have the same set of objects, morphisms, and compositions, then they have the same monomorphisms. (Contributed by Mario Carneiro, 3-Jan-2017.)
Hypotheses
Ref Expression
monpropd.3 (𝜑 → (Homf𝐶) = (Homf𝐷))
monpropd.4 (𝜑 → (compf𝐶) = (compf𝐷))
monpropd.c (𝜑𝐶 ∈ Cat)
monpropd.d (𝜑𝐷 ∈ Cat)
Assertion
Ref Expression
monpropd (𝜑 → (Mono‘𝐶) = (Mono‘𝐷))

Proof of Theorem monpropd
Dummy variables 𝑎 𝑏 𝑐 𝑓 𝑔 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 eqid 2738 . . . . . . . . . . . 12 (Base‘𝐶) = (Base‘𝐶)
2 eqid 2738 . . . . . . . . . . . 12 (Hom ‘𝐶) = (Hom ‘𝐶)
3 eqid 2738 . . . . . . . . . . . 12 (Hom ‘𝐷) = (Hom ‘𝐷)
4 monpropd.3 . . . . . . . . . . . . . 14 (𝜑 → (Homf𝐶) = (Homf𝐷))
54ad2antrr 722 . . . . . . . . . . . . 13 (((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) → (Homf𝐶) = (Homf𝐷))
65ad2antrr 722 . . . . . . . . . . . 12 (((((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) ∧ 𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏)) ∧ 𝑐 ∈ (Base‘𝐶)) → (Homf𝐶) = (Homf𝐷))
7 simpr 484 . . . . . . . . . . . 12 (((((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) ∧ 𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏)) ∧ 𝑐 ∈ (Base‘𝐶)) → 𝑐 ∈ (Base‘𝐶))
8 simp-4r 780 . . . . . . . . . . . 12 (((((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) ∧ 𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏)) ∧ 𝑐 ∈ (Base‘𝐶)) → 𝑎 ∈ (Base‘𝐶))
91, 2, 3, 6, 7, 8homfeqval 17323 . . . . . . . . . . 11 (((((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) ∧ 𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏)) ∧ 𝑐 ∈ (Base‘𝐶)) → (𝑐(Hom ‘𝐶)𝑎) = (𝑐(Hom ‘𝐷)𝑎))
10 eqid 2738 . . . . . . . . . . . 12 (comp‘𝐶) = (comp‘𝐶)
11 eqid 2738 . . . . . . . . . . . 12 (comp‘𝐷) = (comp‘𝐷)
124ad5antr 730 . . . . . . . . . . . 12 ((((((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) ∧ 𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏)) ∧ 𝑐 ∈ (Base‘𝐶)) ∧ 𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎)) → (Homf𝐶) = (Homf𝐷))
13 monpropd.4 . . . . . . . . . . . . 13 (𝜑 → (compf𝐶) = (compf𝐷))
1413ad5antr 730 . . . . . . . . . . . 12 ((((((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) ∧ 𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏)) ∧ 𝑐 ∈ (Base‘𝐶)) ∧ 𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎)) → (compf𝐶) = (compf𝐷))
15 simplr 765 . . . . . . . . . . . 12 ((((((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) ∧ 𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏)) ∧ 𝑐 ∈ (Base‘𝐶)) ∧ 𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎)) → 𝑐 ∈ (Base‘𝐶))
16 simp-5r 782 . . . . . . . . . . . 12 ((((((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) ∧ 𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏)) ∧ 𝑐 ∈ (Base‘𝐶)) ∧ 𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎)) → 𝑎 ∈ (Base‘𝐶))
17 simp-4r 780 . . . . . . . . . . . 12 ((((((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) ∧ 𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏)) ∧ 𝑐 ∈ (Base‘𝐶)) ∧ 𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎)) → 𝑏 ∈ (Base‘𝐶))
18 simpr 484 . . . . . . . . . . . 12 ((((((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) ∧ 𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏)) ∧ 𝑐 ∈ (Base‘𝐶)) ∧ 𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎)) → 𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎))
19 simpllr 772 . . . . . . . . . . . 12 ((((((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) ∧ 𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏)) ∧ 𝑐 ∈ (Base‘𝐶)) ∧ 𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎)) → 𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏))
201, 2, 10, 11, 12, 14, 15, 16, 17, 18, 19comfeqval 17334 . . . . . . . . . . 11 ((((((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) ∧ 𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏)) ∧ 𝑐 ∈ (Base‘𝐶)) ∧ 𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎)) → (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐶)𝑏)𝑔) = (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔))
219, 20mpteq12dva 5159 . . . . . . . . . 10 (((((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) ∧ 𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏)) ∧ 𝑐 ∈ (Base‘𝐶)) → (𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐶)𝑏)𝑔)) = (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔)))
2221cnveqd 5773 . . . . . . . . 9 (((((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) ∧ 𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏)) ∧ 𝑐 ∈ (Base‘𝐶)) → (𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐶)𝑏)𝑔)) = (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔)))
2322funeqd 6440 . . . . . . . 8 (((((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) ∧ 𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏)) ∧ 𝑐 ∈ (Base‘𝐶)) → (Fun (𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐶)𝑏)𝑔)) ↔ Fun (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔))))
2423ralbidva 3119 . . . . . . 7 ((((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) ∧ 𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏)) → (∀𝑐 ∈ (Base‘𝐶)Fun (𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐶)𝑏)𝑔)) ↔ ∀𝑐 ∈ (Base‘𝐶)Fun (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔))))
2524rabbidva 3402 . . . . . 6 (((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) → {𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐶)Fun (𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐶)𝑏)𝑔))} = {𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐶)Fun (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔))})
26 simplr 765 . . . . . . . 8 (((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) → 𝑎 ∈ (Base‘𝐶))
27 simpr 484 . . . . . . . 8 (((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) → 𝑏 ∈ (Base‘𝐶))
281, 2, 3, 5, 26, 27homfeqval 17323 . . . . . . 7 (((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) → (𝑎(Hom ‘𝐶)𝑏) = (𝑎(Hom ‘𝐷)𝑏))
294homfeqbas 17322 . . . . . . . . 9 (𝜑 → (Base‘𝐶) = (Base‘𝐷))
3029ad2antrr 722 . . . . . . . 8 (((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) → (Base‘𝐶) = (Base‘𝐷))
3130raleqdv 3339 . . . . . . 7 (((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) → (∀𝑐 ∈ (Base‘𝐶)Fun (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔)) ↔ ∀𝑐 ∈ (Base‘𝐷)Fun (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔))))
3228, 31rabeqbidv 3410 . . . . . 6 (((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) → {𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐶)Fun (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔))} = {𝑓 ∈ (𝑎(Hom ‘𝐷)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐷)Fun (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔))})
3325, 32eqtrd 2778 . . . . 5 (((𝜑𝑎 ∈ (Base‘𝐶)) ∧ 𝑏 ∈ (Base‘𝐶)) → {𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐶)Fun (𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐶)𝑏)𝑔))} = {𝑓 ∈ (𝑎(Hom ‘𝐷)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐷)Fun (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔))})
34333impa 1108 . . . 4 ((𝜑𝑎 ∈ (Base‘𝐶) ∧ 𝑏 ∈ (Base‘𝐶)) → {𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐶)Fun (𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐶)𝑏)𝑔))} = {𝑓 ∈ (𝑎(Hom ‘𝐷)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐷)Fun (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔))})
3534mpoeq3dva 7330 . . 3 (𝜑 → (𝑎 ∈ (Base‘𝐶), 𝑏 ∈ (Base‘𝐶) ↦ {𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐶)Fun (𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐶)𝑏)𝑔))}) = (𝑎 ∈ (Base‘𝐶), 𝑏 ∈ (Base‘𝐶) ↦ {𝑓 ∈ (𝑎(Hom ‘𝐷)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐷)Fun (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔))}))
36 mpoeq12 7326 . . . 4 (((Base‘𝐶) = (Base‘𝐷) ∧ (Base‘𝐶) = (Base‘𝐷)) → (𝑎 ∈ (Base‘𝐶), 𝑏 ∈ (Base‘𝐶) ↦ {𝑓 ∈ (𝑎(Hom ‘𝐷)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐷)Fun (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔))}) = (𝑎 ∈ (Base‘𝐷), 𝑏 ∈ (Base‘𝐷) ↦ {𝑓 ∈ (𝑎(Hom ‘𝐷)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐷)Fun (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔))}))
3729, 29, 36syl2anc 583 . . 3 (𝜑 → (𝑎 ∈ (Base‘𝐶), 𝑏 ∈ (Base‘𝐶) ↦ {𝑓 ∈ (𝑎(Hom ‘𝐷)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐷)Fun (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔))}) = (𝑎 ∈ (Base‘𝐷), 𝑏 ∈ (Base‘𝐷) ↦ {𝑓 ∈ (𝑎(Hom ‘𝐷)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐷)Fun (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔))}))
3835, 37eqtrd 2778 . 2 (𝜑 → (𝑎 ∈ (Base‘𝐶), 𝑏 ∈ (Base‘𝐶) ↦ {𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐶)Fun (𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐶)𝑏)𝑔))}) = (𝑎 ∈ (Base‘𝐷), 𝑏 ∈ (Base‘𝐷) ↦ {𝑓 ∈ (𝑎(Hom ‘𝐷)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐷)Fun (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔))}))
39 eqid 2738 . . 3 (Mono‘𝐶) = (Mono‘𝐶)
40 monpropd.c . . 3 (𝜑𝐶 ∈ Cat)
411, 2, 10, 39, 40monfval 17361 . 2 (𝜑 → (Mono‘𝐶) = (𝑎 ∈ (Base‘𝐶), 𝑏 ∈ (Base‘𝐶) ↦ {𝑓 ∈ (𝑎(Hom ‘𝐶)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐶)Fun (𝑔 ∈ (𝑐(Hom ‘𝐶)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐶)𝑏)𝑔))}))
42 eqid 2738 . . 3 (Base‘𝐷) = (Base‘𝐷)
43 eqid 2738 . . 3 (Mono‘𝐷) = (Mono‘𝐷)
44 monpropd.d . . 3 (𝜑𝐷 ∈ Cat)
4542, 3, 11, 43, 44monfval 17361 . 2 (𝜑 → (Mono‘𝐷) = (𝑎 ∈ (Base‘𝐷), 𝑏 ∈ (Base‘𝐷) ↦ {𝑓 ∈ (𝑎(Hom ‘𝐷)𝑏) ∣ ∀𝑐 ∈ (Base‘𝐷)Fun (𝑔 ∈ (𝑐(Hom ‘𝐷)𝑎) ↦ (𝑓(⟨𝑐, 𝑎⟩(comp‘𝐷)𝑏)𝑔))}))
4638, 41, 453eqtr4d 2788 1 (𝜑 → (Mono‘𝐶) = (Mono‘𝐷))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395   = wceq 1539  wcel 2108  wral 3063  {crab 3067  cop 4564  cmpt 5153  ccnv 5579  Fun wfun 6412  cfv 6418  (class class class)co 7255  cmpo 7257  Basecbs 16840  Hom chom 16899  compcco 16900  Catccat 17290  Homf chomf 17292  compfccomf 17293  Monocmon 17357
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-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-ov 7258  df-oprab 7259  df-mpo 7260  df-1st 7804  df-2nd 7805  df-homf 17296  df-comf 17297  df-mon 17359
This theorem is referenced by:  oppcepi  17368
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