Theorem prstcnidlem 47175

Description: Lemma for prstcnid 47176 and prstchomval 47184. (Contributed by Zhi Wang, 20-Sep-2024.) (New usage is discouraged.)

Hypotheses

Ref	Expression
prstcnid.c	⊢ (𝜑 → 𝐶 = (ProsetToCat‘𝐾))
prstcnid.k	⊢ (𝜑 → 𝐾 ∈ Proset )
prstcnid.e	⊢ 𝐸 = Slot (𝐸‘ndx)
prstcnid.no	⊢ (𝐸‘ndx) ≠ (comp‘ndx)

Assertion

Ref	Expression
prstcnidlem	⊢ (𝜑 → (𝐸‘𝐶) = (𝐸‘(𝐾 sSet ⟨(Hom ‘ndx), ((le‘𝐾) × {1o})⟩)))

Proof of Theorem prstcnidlem

Step	Hyp	Ref	Expression
1		prstcnid.c	. . . 4 ⊢ (𝜑 → 𝐶 = (ProsetToCat‘𝐾))
2		prstcnid.k	. . . 4 ⊢ (𝜑 → 𝐾 ∈ Proset )
3	1, 2	prstcval 47174	. . 3 ⊢ (𝜑 → 𝐶 = ((𝐾 sSet ⟨(Hom ‘ndx), ((le‘𝐾) × {1o})⟩) sSet ⟨(comp‘ndx), ∅⟩))
4	3	fveq2d 6850	. 2 ⊢ (𝜑 → (𝐸‘𝐶) = (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)
7	5, 6	setsnid 17089	. 2 ⊢ (𝐸‘(𝐾 sSet ⟨(Hom ‘ndx), ((le‘𝐾) × {1o})⟩)) = (𝐸‘((𝐾 sSet ⟨(Hom ‘ndx), ((le‘𝐾) × {1o})⟩) sSet ⟨(comp‘ndx), ∅⟩))
8	4, 7	eqtr4di 2790	1 ⊢ (𝜑 → (𝐸‘𝐶) = (𝐸‘(𝐾 sSet ⟨(Hom ‘ndx), ((le‘𝐾) × {1o})⟩)))

Syntax hints:   → wi 4   = wceq 1542   ∈ wcel 2107   ≠ wne 2940  ∅c0 4286  {csn 4590  ⟨cop 4596   × cxp 5635  ‘cfv 6500  (class class class)co 7361  1_oc1o 8409   sSet csts 17043  Slot cslot 17061  ndxcnx 17073  lecple 17148  Hom chom 17152  compcco 17153   Proset cproset 18190  ProsetToCatcprstc 47172

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2109  ax-9 2117  ax-10 2138  ax-11 2155  ax-12 2172  ax-ext 2703  ax-sep 5260  ax-nul 5267  ax-pr 5388  ax-un 7676

This theorem depends on definitions:  df-bi 206  df-an 398  df-or 847  df-3an 1090  df-tru 1545  df-fal 1555  df-ex 1783  df-nf 1787  df-sb 2069  df-mo 2534  df-eu 2563  df-clab 2710  df-cleq 2724  df-clel 2810  df-nfc 2885  df-ne 2941  df-ral 3062  df-rex 3071  df-rab 3407  df-v 3449  df-sbc 3744  df-dif 3917  df-un 3919  df-in 3921  df-ss 3931  df-nul 4287  df-if 4491  df-sn 4591  df-pr 4593  df-op 4597  df-uni 4870  df-br 5110  df-opab 5172  df-mpt 5193  df-id 5535  df-xp 5643  df-rel 5644  df-cnv 5645  df-co 5646  df-dm 5647  df-res 5649  df-iota 6452  df-fun 6502  df-fv 6508  df-ov 7364  df-oprab 7365  df-mpo 7366  df-sets 17044  df-slot 17062  df-prstc 47173

This theorem is referenced by:  prstcnid  47176  prstchomval  47184