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Theorem prstcnidlem 50350
Description: Lemma for prstcnid 50351 and prstchomval 50357. (Contributed by Zhi Wang, 20-Sep-2024.) (New usage is discouraged.)
Hypotheses
Ref Expression
prstcnid.c (𝜑𝐶 = (ProsetToCat‘𝐾))
prstcnid.k (𝜑𝐾 ∈ Proset )
prstcnid.e 𝐸 = Slot (𝐸‘ndx)
prstcnid.no (𝐸‘ndx) ≠ (comp‘ndx)
Assertion
Ref Expression
prstcnidlem (𝜑 → (𝐸𝐶) = (𝐸‘(𝐾 sSet ⟨(Hom ‘ndx), ((le‘𝐾) × {1o})⟩)))

Proof of Theorem prstcnidlem
StepHypRef Expression
1 prstcnid.c . . . 4 (𝜑𝐶 = (ProsetToCat‘𝐾))
2 prstcnid.k . . . 4 (𝜑𝐾 ∈ Proset )
31, 2prstcval 50349 . . 3 (𝜑𝐶 = ((𝐾 sSet ⟨(Hom ‘ndx), ((le‘𝐾) × {1o})⟩) sSet ⟨(comp‘ndx), ∅⟩))
43fveq2d 6885 . 2 (𝜑 → (𝐸𝐶) = (𝐸‘((𝐾 sSet ⟨(Hom ‘ndx), ((le‘𝐾) × {1o})⟩) sSet ⟨(comp‘ndx), ∅⟩)))
5 prstcnid.e . . 3 𝐸 = Slot (𝐸‘ndx)
6 prstcnid.no . . 3 (𝐸‘ndx) ≠ (comp‘ndx)
75, 6setsnid 17263 . 2 (𝐸‘(𝐾 sSet ⟨(Hom ‘ndx), ((le‘𝐾) × {1o})⟩)) = (𝐸‘((𝐾 sSet ⟨(Hom ‘ndx), ((le‘𝐾) × {1o})⟩) sSet ⟨(comp‘ndx), ∅⟩))
84, 7eqtr4di 2816 1 (𝜑 → (𝐸𝐶) = (𝐸‘(𝐾 sSet ⟨(Hom ‘ndx), ((le‘𝐾) × {1o})⟩)))
Colors of variables: wff setvar class
Syntax hints:  wi 4   = wceq 1570  wcel 2143  wne 2958  c0 4286  {csn 4589  cop 4595   × cxp 5659  cfv 6536  (class class class)co 7410  1oc1o 8442   sSet csts 17218  Slot cslot 17236  ndxcnx 17248  lecple 17312  Hom chom 17316  compcco 17317   Proset cproset 18343  ProsetToCatcprstc 50347
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1825  ax-4 1839  ax-5 1940  ax-6 1997  ax-7 2038  ax-8 2145  ax-9 2153  ax-10 2176  ax-11 2192  ax-12 2213  ax-ext 2735  ax-sep 5257  ax-nul 5269  ax-pr 5404  ax-un 7732
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1810  df-nf 1814  df-sb 2097  df-mo 2567  df-eu 2597  df-clab 2742  df-cleq 2755  df-clel 2838  df-nfc 2912  df-ne 2959  df-ral 3080  df-rex 3090  df-rab 3417  df-v 3457  df-sbc 3745  df-dif 3908  df-un 3910  df-in 3912  df-ss 3922  df-nul 4287  df-if 4488  df-sn 4590  df-pr 4592  df-op 4596  df-uni 4873  df-br 5110  df-opab 5174  df-mpt 5193  df-id 5556  df-xp 5667  df-rel 5668  df-cnv 5669  df-co 5670  df-dm 5671  df-res 5673  df-iota 6492  df-fun 6538  df-fv 6544  df-ov 7413  df-oprab 7414  df-mpo 7415  df-sets 17219  df-slot 17237  df-prstc 50348
This theorem is referenced by:  prstcnid  50351  prstchomval  50357
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