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Theorem zeroopropdlem 49247
Description: Lemma for zeroopropd 49250. (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 17915 . 2 ZeroO Fn Cat
2 initopropdlem.1 . 2 (𝜑 → ¬ 𝐶 ∈ V)
3 ssv 3962 . 2 Cat ⊆ V
4 simpr 484 . . . 4 ((𝜑𝐷 ∈ Cat) → 𝐷 ∈ Cat)
5 eqid 2729 . . . 4 (Base‘𝐷) = (Base‘𝐷)
6 eqid 2729 . . . 4 (Hom ‘𝐷) = (Hom ‘𝐷)
74, 5, 6zerooval 17921 . . 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 49245 . . . . . . 7 (𝜑 → (InitO‘𝐶) = (InitO‘𝐷))
11 fvprc 6818 . . . . . . . 8 𝐶 ∈ V → (InitO‘𝐶) = ∅)
122, 11syl 17 . . . . . . 7 (𝜑 → (InitO‘𝐶) = ∅)
1310, 12eqtr3d 2766 . . . . . 6 (𝜑 → (InitO‘𝐷) = ∅)
1413adantr 480 . . . . 5 ((𝜑𝐷 ∈ Cat) → (InitO‘𝐷) = ∅)
158, 9, 2termopropdlem 49246 . . . . . . 7 (𝜑 → (TermO‘𝐶) = (TermO‘𝐷))
16 fvprc 6818 . . . . . . . 8 𝐶 ∈ V → (TermO‘𝐶) = ∅)
172, 16syl 17 . . . . . . 7 (𝜑 → (TermO‘𝐶) = ∅)
1815, 17eqtr3d 2766 . . . . . 6 (𝜑 → (TermO‘𝐷) = ∅)
1918adantr 480 . . . . 5 ((𝜑𝐷 ∈ Cat) → (TermO‘𝐷) = ∅)
2014, 19ineq12d 4174 . . . 4 ((𝜑𝐷 ∈ Cat) → ((InitO‘𝐷) ∩ (TermO‘𝐷)) = (∅ ∩ ∅))
21 inidm 4180 . . . 4 (∅ ∩ ∅) = ∅
2220, 21eqtrdi 2780 . . 3 ((𝜑𝐷 ∈ Cat) → ((InitO‘𝐷) ∩ (TermO‘𝐷)) = ∅)
237, 22eqtrd 2764 . 2 ((𝜑𝐷 ∈ Cat) → (ZeroO‘𝐷) = ∅)
241, 2, 3, 23initopropdlemlem 49244 1 (𝜑 → (ZeroO‘𝐶) = (ZeroO‘𝐷))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wa 395   = wceq 1540  wcel 2109  Vcvv 3438  cin 3904  c0 4286  cfv 6486  Basecbs 17139  Hom chom 17191  Catccat 17589  Homf chomf 17591  compfccomf 17592  InitOcinito 17907  TermOctermo 17908  ZeroOczeroo 17909
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1795  ax-4 1809  ax-5 1910  ax-6 1967  ax-7 2008  ax-8 2111  ax-9 2119  ax-10 2142  ax-11 2158  ax-12 2178  ax-ext 2701  ax-rep 5221  ax-sep 5238  ax-nul 5248  ax-pow 5307  ax-pr 5374  ax-un 7675
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1543  df-fal 1553  df-ex 1780  df-nf 1784  df-sb 2066  df-mo 2533  df-eu 2562  df-clab 2708  df-cleq 2721  df-clel 2803  df-nfc 2878  df-ne 2926  df-ral 3045  df-rex 3054  df-reu 3346  df-rab 3397  df-v 3440  df-sbc 3745  df-csb 3854  df-dif 3908  df-un 3910  df-in 3912  df-ss 3922  df-nul 4287  df-if 4479  df-pw 4555  df-sn 4580  df-pr 4582  df-op 4586  df-uni 4862  df-iun 4946  df-br 5096  df-opab 5158  df-mpt 5177  df-id 5518  df-xp 5629  df-rel 5630  df-cnv 5631  df-co 5632  df-dm 5633  df-rn 5634  df-res 5635  df-ima 5636  df-iota 6442  df-fun 6488  df-fn 6489  df-f 6490  df-f1 6491  df-fo 6492  df-f1o 6493  df-fv 6494  df-ov 7356  df-oprab 7357  df-mpo 7358  df-1st 7931  df-2nd 7932  df-homf 17595  df-inito 17910  df-termo 17911  df-zeroo 17912
This theorem is referenced by:  zeroopropd  49250
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