Theorem prstcnidlem 49739

Description: Lemma for prstcnid 49740 and prstchomval 49746. (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 49738	. . 3 ⊢ (𝜑 → 𝐶 = ((𝐾 sSet ⟨(Hom ‘ndx), ((le‘𝐾) × {1o})⟩) sSet ⟨(comp‘ndx), ∅⟩))
4	3	fveq2d 6836	. 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 17133	. 2 ⊢ (𝐸‘(𝐾 sSet ⟨(Hom ‘ndx), ((le‘𝐾) × {1o})⟩)) = (𝐸‘((𝐾 sSet ⟨(Hom ‘ndx), ((le‘𝐾) × {1o})⟩) sSet ⟨(comp‘ndx), ∅⟩))
8	4, 7	eqtr4di 2787	1 ⊢ (𝜑 → (𝐸‘𝐶) = (𝐸‘(𝐾 sSet ⟨(Hom ‘ndx), ((le‘𝐾) × {1o})⟩)))

Syntax hints:   → wi 4   = wceq 1541   ∈ wcel 2113   ≠ wne 2930  ∅c0 4283  {csn 4578  ⟨cop 4584   × cxp 5620  ‘cfv 6490  (class class class)co 7356  1_oc1o 8388   sSet csts 17088  Slot cslot 17106  ndxcnx 17118  lecple 17182  Hom chom 17186  compcco 17187   Proset cproset 18213  ProsetToCatcprstc 49736

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1968  ax-7 2009  ax-8 2115  ax-9 2123  ax-10 2146  ax-11 2162  ax-12 2182  ax-ext 2706  ax-sep 5239  ax-nul 5249  ax-pr 5375  ax-un 7678

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 848  df-3an 1088  df-tru 1544  df-fal 1554  df-ex 1781  df-nf 1785  df-sb 2068  df-mo 2537  df-eu 2567  df-clab 2713  df-cleq 2726  df-clel 2809  df-nfc 2883  df-ne 2931  df-ral 3050  df-rex 3059  df-rab 3398  df-v 3440  df-sbc 3739  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4284  df-if 4478  df-sn 4579  df-pr 4581  df-op 4585  df-uni 4862  df-br 5097  df-opab 5159  df-mpt 5178  df-id 5517  df-xp 5628  df-rel 5629  df-cnv 5630  df-co 5631  df-dm 5632  df-res 5634  df-iota 6446  df-fun 6492  df-fv 6498  df-ov 7359  df-oprab 7360  df-mpo 7361  df-sets 17089  df-slot 17107  df-prstc 49737

This theorem is referenced by:  prstcnid  49740  prstchomval  49746