Theorem uspgrloopvtxel 29324

Description: A vertex in a graph (simple pseudograph) with one edge which is a loop (see uspgr1v1eop 29056). (Contributed by AV, 17-Dec-2020.)

Hypothesis

Ref	Expression
uspgrloopvtx.g	⊢ 𝐺 = ⟨𝑉, {⟨𝐴, {𝑁}⟩}⟩

Assertion

Ref	Expression
uspgrloopvtxel	⊢ ((𝑉 ∈ 𝑊 ∧ 𝑁 ∈ 𝑉) → 𝑁 ∈ (Vtx‘𝐺))

Proof of Theorem uspgrloopvtxel

Step	Hyp	Ref	Expression
1		uspgrloopvtx.g	. . 3 ⊢ 𝐺 = ⟨𝑉, {⟨𝐴, {𝑁}⟩}⟩
2	1	uspgrloopvtx 29323	. 2 ⊢ (𝑉 ∈ 𝑊 → (Vtx‘𝐺) = 𝑉)
3		eleq2 2818	. . . . 5 ⊢ (𝑉 = (Vtx‘𝐺) → (𝑁 ∈ 𝑉 ↔ 𝑁 ∈ (Vtx‘𝐺)))
4	3	biimpd 228	. . . 4 ⊢ (𝑉 = (Vtx‘𝐺) → (𝑁 ∈ 𝑉 → 𝑁 ∈ (Vtx‘𝐺)))
5	4	eqcoms 2736	. . 3 ⊢ ((Vtx‘𝐺) = 𝑉 → (𝑁 ∈ 𝑉 → 𝑁 ∈ (Vtx‘𝐺)))
6	5	com12 32	. 2 ⊢ (𝑁 ∈ 𝑉 → ((Vtx‘𝐺) = 𝑉 → 𝑁 ∈ (Vtx‘𝐺)))
7	2, 6	mpan9 506	1 ⊢ ((𝑉 ∈ 𝑊 ∧ 𝑁 ∈ 𝑉) → 𝑁 ∈ (Vtx‘𝐺))

Syntax hints:   → wi 4   ∧ wa 395   = wceq 1534   ∈ wcel 2099  {csn 4625  ⟨cop 4631  ‘cfv 6543  Vtxcvtx 28803

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1790  ax-4 1804  ax-5 1906  ax-6 1964  ax-7 2004  ax-8 2101  ax-9 2109  ax-10 2130  ax-11 2147  ax-12 2167  ax-ext 2699  ax-sep 5294  ax-nul 5301  ax-pr 5424  ax-un 7735

This theorem depends on definitions:  df-bi 206  df-an 396  df-or 847  df-3an 1087  df-tru 1537  df-fal 1547  df-ex 1775  df-nf 1779  df-sb 2061  df-mo 2530  df-eu 2559  df-clab 2706  df-cleq 2720  df-clel 2806  df-nfc 2881  df-ne 2937  df-ral 3058  df-rex 3067  df-rab 3429  df-v 3472  df-dif 3948  df-un 3950  df-in 3952  df-ss 3962  df-nul 4320  df-if 4526  df-sn 4626  df-pr 4628  df-op 4632  df-uni 4905  df-br 5144  df-opab 5206  df-mpt 5227  df-id 5571  df-xp 5679  df-rel 5680  df-cnv 5681  df-co 5682  df-dm 5683  df-rn 5684  df-iota 6495  df-fun 6545  df-fv 6551  df-1st 7988  df-vtx 28805

This theorem is referenced by: (None)