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Theorem uspgrloopvtxel 27879
Description: A vertex in a graph (simple pseudograph) with one edge which is a loop (see uspgr1v1eop 27612). (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 27878 . 2 (𝑉𝑊 → (Vtx‘𝐺) = 𝑉)
3 eleq2 2829 . . . . 5 (𝑉 = (Vtx‘𝐺) → (𝑁𝑉𝑁 ∈ (Vtx‘𝐺)))
43biimpd 228 . . . 4 (𝑉 = (Vtx‘𝐺) → (𝑁𝑉𝑁 ∈ (Vtx‘𝐺)))
54eqcoms 2748 . . 3 ((Vtx‘𝐺) = 𝑉 → (𝑁𝑉𝑁 ∈ (Vtx‘𝐺)))
65com12 32 . 2 (𝑁𝑉 → ((Vtx‘𝐺) = 𝑉𝑁 ∈ (Vtx‘𝐺)))
72, 6mpan9 507 1 ((𝑉𝑊𝑁𝑉) → 𝑁 ∈ (Vtx‘𝐺))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 396   = wceq 1542  wcel 2110  {csn 4567  cop 4573  cfv 6431  Vtxcvtx 27362
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1802  ax-4 1816  ax-5 1917  ax-6 1975  ax-7 2015  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2158  ax-12 2175  ax-ext 2711  ax-sep 5227  ax-nul 5234  ax-pr 5356  ax-un 7580
This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3an 1088  df-tru 1545  df-fal 1555  df-ex 1787  df-nf 1791  df-sb 2072  df-mo 2542  df-eu 2571  df-clab 2718  df-cleq 2732  df-clel 2818  df-nfc 2891  df-ne 2946  df-ral 3071  df-rex 3072  df-rab 3075  df-v 3433  df-dif 3895  df-un 3897  df-in 3899  df-ss 3909  df-nul 4263  df-if 4466  df-sn 4568  df-pr 4570  df-op 4574  df-uni 4846  df-br 5080  df-opab 5142  df-mpt 5163  df-id 5489  df-xp 5595  df-rel 5596  df-cnv 5597  df-co 5598  df-dm 5599  df-rn 5600  df-iota 6389  df-fun 6433  df-fv 6439  df-1st 7822  df-vtx 27364
This theorem is referenced by: (None)
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