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Theorem zeroopropdlem 48993
Description: Lemma for zeroopropd 48996. (Contributed by Zhi Wang, 26-Oct-2025.)
Hypotheses
Ref Expression
initopropd.1 (𝜑 → (Homf𝐶) = (Homf𝐷))
initopropd.2 (𝜑 → (compf𝐶) = (compf𝐷))
initopropdlem.1 (𝜑 → ¬ 𝐶 ∈ V)
Assertion
Ref Expression
zeroopropdlem (𝜑 → (ZeroO‘𝐶) = (ZeroO‘𝐷))

Proof of Theorem zeroopropdlem
StepHypRef Expression
1 zeroofn 18006 . 2 ZeroO Fn Cat
2 initopropdlem.1 . 2 (𝜑 → ¬ 𝐶 ∈ V)
3 ssv 3988 . 2 Cat ⊆ V
4 simpr 484 . . . 4 ((𝜑𝐷 ∈ Cat) → 𝐷 ∈ Cat)
5 eqid 2734 . . . 4 (Base‘𝐷) = (Base‘𝐷)
6 eqid 2734 . . . 4 (Hom ‘𝐷) = (Hom ‘𝐷)
74, 5, 6zerooval 18012 . . 3 ((𝜑𝐷 ∈ Cat) → (ZeroO‘𝐷) = ((InitO‘𝐷) ∩ (TermO‘𝐷)))
8 initopropd.1 . . . . . . . 8 (𝜑 → (Homf𝐶) = (Homf𝐷))
9 initopropd.2 . . . . . . . 8 (𝜑 → (compf𝐶) = (compf𝐷))
108, 9, 2initopropdlem 48991 . . . . . . 7 (𝜑 → (InitO‘𝐶) = (InitO‘𝐷))
11 fvprc 6878 . . . . . . . 8 𝐶 ∈ V → (InitO‘𝐶) = ∅)
122, 11syl 17 . . . . . . 7 (𝜑 → (InitO‘𝐶) = ∅)
1310, 12eqtr3d 2771 . . . . . 6 (𝜑 → (InitO‘𝐷) = ∅)
1413adantr 480 . . . . 5 ((𝜑𝐷 ∈ Cat) → (InitO‘𝐷) = ∅)
158, 9, 2termopropdlem 48992 . . . . . . 7 (𝜑 → (TermO‘𝐶) = (TermO‘𝐷))
16 fvprc 6878 . . . . . . . 8 𝐶 ∈ V → (TermO‘𝐶) = ∅)
172, 16syl 17 . . . . . . 7 (𝜑 → (TermO‘𝐶) = ∅)
1815, 17eqtr3d 2771 . . . . . 6 (𝜑 → (TermO‘𝐷) = ∅)
1918adantr 480 . . . . 5 ((𝜑𝐷 ∈ Cat) → (TermO‘𝐷) = ∅)
2014, 19ineq12d 4201 . . . 4 ((𝜑𝐷 ∈ Cat) → ((InitO‘𝐷) ∩ (TermO‘𝐷)) = (∅ ∩ ∅))
21 inidm 4207 . . . 4 (∅ ∩ ∅) = ∅
2220, 21eqtrdi 2785 . . 3 ((𝜑𝐷 ∈ Cat) → ((InitO‘𝐷) ∩ (TermO‘𝐷)) = ∅)
237, 22eqtrd 2769 . 2 ((𝜑𝐷 ∈ Cat) → (ZeroO‘𝐷) = ∅)
241, 2, 3, 23initopropdlemlem 48990 1 (𝜑 → (ZeroO‘𝐶) = (ZeroO‘𝐷))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wa 395   = wceq 1539  wcel 2107  Vcvv 3463  cin 3930  c0 4313  cfv 6541  Basecbs 17230  Hom chom 17285  Catccat 17679  Homf chomf 17681  compfccomf 17682  InitOcinito 17998  TermOctermo 17999  ZeroOczeroo 18000
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1794  ax-4 1808  ax-5 1909  ax-6 1966  ax-7 2006  ax-8 2109  ax-9 2117  ax-10 2140  ax-11 2156  ax-12 2176  ax-ext 2706  ax-rep 5259  ax-sep 5276  ax-nul 5286  ax-pow 5345  ax-pr 5412  ax-un 7737
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1779  df-nf 1783  df-sb 2064  df-mo 2538  df-eu 2567  df-clab 2713  df-cleq 2726  df-clel 2808  df-nfc 2884  df-ne 2932  df-ral 3051  df-rex 3060  df-reu 3364  df-rab 3420  df-v 3465  df-sbc 3771  df-csb 3880  df-dif 3934  df-un 3936  df-in 3938  df-ss 3948  df-nul 4314  df-if 4506  df-pw 4582  df-sn 4607  df-pr 4609  df-op 4613  df-uni 4888  df-iun 4973  df-br 5124  df-opab 5186  df-mpt 5206  df-id 5558  df-xp 5671  df-rel 5672  df-cnv 5673  df-co 5674  df-dm 5675  df-rn 5676  df-res 5677  df-ima 5678  df-iota 6494  df-fun 6543  df-fn 6544  df-f 6545  df-f1 6546  df-fo 6547  df-f1o 6548  df-fv 6549  df-ov 7416  df-oprab 7417  df-mpo 7418  df-1st 7996  df-2nd 7997  df-homf 17685  df-inito 18001  df-termo 18002  df-zeroo 18003
This theorem is referenced by:  zeroopropd  48996
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