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Theorem uspgrloopvtxel 29903
Description: A vertex in a graph (simple pseudograph) with one edge which is a loop (see uspgr1v1eop 29636). (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 29902 . 2 (𝑉𝑊 → (Vtx‘𝐺) = 𝑉)
3 eleq2 2855 . . . . 5 (𝑉 = (Vtx‘𝐺) → (𝑁𝑉𝑁 ∈ (Vtx‘𝐺)))
43biimpd 232 . . . 4 (𝑉 = (Vtx‘𝐺) → (𝑁𝑉𝑁 ∈ (Vtx‘𝐺)))
54eqcoms 2774 . . 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 2146  {csn 4594  cop 4600  cfv 6543  Vtxcvtx 29383
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 2148  ax-9 2156  ax-10 2179  ax-11 2195  ax-12 2216  ax-ext 2738  ax-sep 5262  ax-nul 5274  ax-pr 5409  ax-un 7745
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 2570  df-eu 2600  df-clab 2745  df-cleq 2758  df-clel 2841  df-nfc 2915  df-ne 2962  df-ral 3083  df-rex 3093  df-rab 3420  df-v 3460  df-dif 3911  df-un 3913  df-in 3915  df-ss 3925  df-nul 4290  df-if 4493  df-sn 4595  df-pr 4597  df-op 4601  df-uni 4878  df-br 5115  df-opab 5179  df-mpt 5198  df-id 5561  df-xp 5672  df-rel 5673  df-cnv 5674  df-co 5675  df-dm 5676  df-rn 5677  df-iota 6499  df-fun 6545  df-fv 6551  df-1st 7995  df-vtx 29385
This theorem is used by: (None)
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