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Theorem zeroopropdlem 49601
Description: Lemma for zeroopropd 49604. (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 17925 . 2 ZeroO Fn Cat
2 initopropdlem.1 . 2 (𝜑 → ¬ 𝐶 ∈ V)
3 ssv 3960 . 2 Cat ⊆ V
4 simpr 484 . . . 4 ((𝜑𝐷 ∈ Cat) → 𝐷 ∈ Cat)
5 eqid 2737 . . . 4 (Base‘𝐷) = (Base‘𝐷)
6 eqid 2737 . . . 4 (Hom ‘𝐷) = (Hom ‘𝐷)
74, 5, 6zerooval 17931 . . 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 49599 . . . . . . 7 (𝜑 → (InitO‘𝐶) = (InitO‘𝐷))
11 fvprc 6834 . . . . . . . 8 𝐶 ∈ V → (InitO‘𝐶) = ∅)
122, 11syl 17 . . . . . . 7 (𝜑 → (InitO‘𝐶) = ∅)
1310, 12eqtr3d 2774 . . . . . 6 (𝜑 → (InitO‘𝐷) = ∅)
1413adantr 480 . . . . 5 ((𝜑𝐷 ∈ Cat) → (InitO‘𝐷) = ∅)
158, 9, 2termopropdlem 49600 . . . . . . 7 (𝜑 → (TermO‘𝐶) = (TermO‘𝐷))
16 fvprc 6834 . . . . . . . 8 𝐶 ∈ V → (TermO‘𝐶) = ∅)
172, 16syl 17 . . . . . . 7 (𝜑 → (TermO‘𝐶) = ∅)
1815, 17eqtr3d 2774 . . . . . 6 (𝜑 → (TermO‘𝐷) = ∅)
1918adantr 480 . . . . 5 ((𝜑𝐷 ∈ Cat) → (TermO‘𝐷) = ∅)
2014, 19ineq12d 4175 . . . 4 ((𝜑𝐷 ∈ Cat) → ((InitO‘𝐷) ∩ (TermO‘𝐷)) = (∅ ∩ ∅))
21 inidm 4181 . . . 4 (∅ ∩ ∅) = ∅
2220, 21eqtrdi 2788 . . 3 ((𝜑𝐷 ∈ Cat) → ((InitO‘𝐷) ∩ (TermO‘𝐷)) = ∅)
237, 22eqtrd 2772 . 2 ((𝜑𝐷 ∈ Cat) → (ZeroO‘𝐷) = ∅)
241, 2, 3, 23initopropdlemlem 49598 1 (𝜑 → (ZeroO‘𝐶) = (ZeroO‘𝐷))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wa 395   = wceq 1542  wcel 2114  Vcvv 3442  cin 3902  c0 4287  cfv 6500  Basecbs 17148  Hom chom 17200  Catccat 17599  Homf chomf 17601  compfccomf 17602  InitOcinito 17917  TermOctermo 17918  ZeroOczeroo 17919
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 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2709  ax-rep 5226  ax-sep 5243  ax-nul 5253  ax-pow 5312  ax-pr 5379  ax-un 7690
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2540  df-eu 2570  df-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-ne 2934  df-ral 3053  df-rex 3063  df-reu 3353  df-rab 3402  df-v 3444  df-sbc 3743  df-csb 3852  df-dif 3906  df-un 3908  df-in 3910  df-ss 3920  df-nul 4288  df-if 4482  df-pw 4558  df-sn 4583  df-pr 4585  df-op 4589  df-uni 4866  df-iun 4950  df-br 5101  df-opab 5163  df-mpt 5182  df-id 5527  df-xp 5638  df-rel 5639  df-cnv 5640  df-co 5641  df-dm 5642  df-rn 5643  df-res 5644  df-ima 5645  df-iota 6456  df-fun 6502  df-fn 6503  df-f 6504  df-f1 6505  df-fo 6506  df-f1o 6507  df-fv 6508  df-ov 7371  df-oprab 7372  df-mpo 7373  df-1st 7943  df-2nd 7944  df-homf 17605  df-inito 17920  df-termo 17921  df-zeroo 17922
This theorem is referenced by:  zeroopropd  49604
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