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Theorem uspgrloopvtxel 29984
Description: A vertex in a graph (simple pseudograph) with one edge which is a loop (see uspgr1v1eop 29717). (Contributed by AV, 17-Dec-2020.)
Hypothesis
Ref Expression
uspgrloopvtx.g 𝐺 = ⟨𝑉, {⟨𝐴, {𝑁}⟩}⟩
Assertion
Ref Expression
uspgrloopvtxel ((𝑉𝑊𝑁𝑉) → 𝑁 ∈ (Vtx‘𝐺))

Proof of Theorem uspgrloopvtxel
StepHypRef Expression
1 uspgrloopvtx.g . . 3 𝐺 = ⟨𝑉, {⟨𝐴, {𝑁}⟩}⟩
21uspgrloopvtx 29983 . 2 (𝑉𝑊 → (Vtx‘𝐺) = 𝑉)
3 eleq2 2851 . . . . 5 (𝑉 = (Vtx‘𝐺) → (𝑁𝑉𝑁 ∈ (Vtx‘𝐺)))
43biimpd 232 . . . 4 (𝑉 = (Vtx‘𝐺) → (𝑁𝑉𝑁 ∈ (Vtx‘𝐺)))
54eqcoms 2770 . . 3 ((Vtx‘𝐺) = 𝑉 → (𝑁𝑉𝑁 ∈ (Vtx‘𝐺)))
65com12 33 . 2 (𝑁𝑉 → ((Vtx‘𝐺) = 𝑉𝑁 ∈ (Vtx‘𝐺)))
72, 6mpan9 516 1 ((𝑉𝑊𝑁𝑉) → 𝑁 ∈ (Vtx‘𝐺))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:  wi 4  wa 401   = wceq 1570  wcel 2145  {csn 4587  cop 4593  cfv 6537  Vtxcvtx 29461
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2215  ax-ext 2734  ax-sep 5255  ax-nul 5267  ax-pr 5402  ax-un 7740
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2566  df-eu 2596  df-clab 2741  df-cleq 2754  df-clel 2837  df-nfc 2911  df-ne 2958  df-ral 3079  df-rex 3089  df-rab 3415  df-v 3455  df-dif 3905  df-un 3907  df-in 3909  df-ss 3919  df-nul 4283  df-if 4486  df-sn 4588  df-pr 4590  df-op 4594  df-uni 4871  df-br 5108  df-opab 5172  df-mpt 5191  df-id 5554  df-xp 5665  df-rel 5666  df-cnv 5667  df-co 5668  df-dm 5669  df-rn 5670  df-iota 6493  df-fun 6539  df-fv 6545  df-1st 7990  df-vtx 29463
This theorem is used by: (None)
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