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Theorem zeroopropdlem 50319
Description: Lemma for zeroopropd 50322. (Contributed by Zhi Wang, 26-Oct-2025.)
Hypotheses
Ref Expression
initopropd.1 (𝜑 → (Homf ‘𝐶) = (Homf ‘𝐷))
initopropd.2 (𝜑 → (compf‘𝐶) = (compf‘𝐷))
initopropdlem.1 (𝜑 → ¬ 𝐶 ∈ V)
Assertion
Ref Expression
zeroopropdlem (𝜑 → (ZeroO‘𝐶) = (ZeroO‘𝐷))

Proof of Theorem zeroopropdlem
StepHypRef Expression
1 zeroofn 18157 . 2 ZeroO Fn Cat
2 initopropdlem.1 . 2 (𝜑 → ¬ 𝐶 ∈ V)
3 ssv 3955 . 2 Cat ⊆ V
4 simpr 490 . . . 4 ((𝜑 ∧ 𝐷 ∈ Cat) → 𝐷 ∈ Cat)
5 eqid 2761 . . . 4 (Base‘𝐷) = (Base‘𝐷)
6 eqid 2761 . . . 4 (Hom ‘𝐷) = (Hom ‘𝐷)
74, 5, 6zerooval 18163 . . 3 ((𝜑 ∧ 𝐷 ∈ Cat) → (ZeroO‘𝐷) = ((InitO‘𝐷) ∩ (TermO‘𝐷)))
8 initopropd.1 . . . . . . . 8 (𝜑 → (Homf ‘𝐶) = (Homf ‘𝐷))
9 initopropd.2 . . . . . . . 8 (𝜑 → (compf‘𝐶) = (compf‘𝐷))
108, 9, 2initopropdlem 50317 . . . . . . 7 (𝜑 → (InitO‘𝐶) = (InitO‘𝐷))
11 fvprc 6875 . . . . . . . 8 (¬ 𝐶 ∈ V → (InitO‘𝐶) = ∅)
122, 11syl 18 . . . . . . 7 (𝜑 → (InitO‘𝐶) = ∅)
1310, 12eqtr3d 2798 . . . . . 6 (𝜑 → (InitO‘𝐷) = ∅)
1413adantr 486 . . . . 5 ((𝜑 ∧ 𝐷 ∈ Cat) → (InitO‘𝐷) = ∅)
158, 9, 2termopropdlem 50318 . . . . . . 7 (𝜑 → (TermO‘𝐶) = (TermO‘𝐷))
16 fvprc 6875 . . . . . . . 8 (¬ 𝐶 ∈ V → (TermO‘𝐶) = ∅)
172, 16syl 18 . . . . . . 7 (𝜑 → (TermO‘𝐶) = ∅)
1815, 17eqtr3d 2798 . . . . . 6 (𝜑 → (TermO‘𝐷) = ∅)
1918adantr 486 . . . . 5 ((𝜑 ∧ 𝐷 ∈ Cat) → (TermO‘𝐷) = ∅)
2014, 19ineq12d 4167 . . . 4 ((𝜑 ∧ 𝐷 ∈ Cat) → ((InitO‘𝐷) ∩ (TermO‘𝐷)) = (∅ ∩ ∅))
21 inidm 4172 . . . 4 (∅ ∩ ∅) = ∅
2220, 21eqtrdi 2812 . . 3 ((𝜑 ∧ 𝐷 ∈ Cat) → ((InitO‘𝐷) ∩ (TermO‘𝐷)) = ∅)
237, 22eqtrd 2796 . 2 ((𝜑 ∧ 𝐷 ∈ Cat) → (ZeroO‘𝐷) = ∅)
241, 2, 3, 23initopropdlemlem 50316 1 (𝜑 → (ZeroO‘𝐶) = (ZeroO‘𝐷))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  ¬ wn 3   → wi 4   ∧ wa 401   = wceq 1570   ∈ wcel 2145  Vcvv 3451   ∩ cin 3898  ∅c0 4279  ‘cfv 6537  Basecbs 17380  Hom chom 17432  Catccat 17831  Homf chomf 17833  compfccomf 17834  InitOcinito 18149  TermOctermo 18150  ZeroOczeroo 18151
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2213  ax-ext 2733  ax-rep 5232  ax-sep 5249  ax-nul 5260  ax-pow 5327  ax-pr 5391  ax-un 7749
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-ral 3078  df-rex 3088  df-reu 3367  df-rab 3414  df-v 3453  df-sbc 3740  df-csb 3848  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4280  df-if 4483  df-pw 4559  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-iun 4953  df-br 5104  df-opab 5168  df-mpt 5187  df-id 5546  df-xp 5657  df-rel 5658  df-cnv 5659  df-co 5660  df-dm 5661  df-rn 5662  df-res 5663  df-ima 5664  df-iota 6493  df-fun 6539  df-fn 6540  df-f 6541  df-f1 6542  df-fo 6543  df-f1o 6544  df-fv 6545  df-ov 7421  df-oprab 7422  df-mpo 7423  df-1st 7999  df-2nd 8000  df-homf 17837  df-inito 18152  df-termo 18153  df-zeroo 18154
This theorem is used by:  zeroopropd  50322
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