MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  uhgrspan1lem3 Structured version   Visualization version   GIF version

Theorem uhgrspan1lem3 29633
Description: Lemma 3 for uhgrspan1 29634. (Contributed by AV, 19-Nov-2020.)
Hypotheses
Ref Expression
uhgrspan1.v 𝑉 = (Vtx‘𝐺)
uhgrspan1.i 𝐼 = (iEdg‘𝐺)
uhgrspan1.f 𝐹 = {𝑖 ∈ dom 𝐼𝑁 ∉ (𝐼𝑖)}
uhgrspan1.s 𝑆 = ⟨(𝑉 ∖ {𝑁}), (𝐼𝐹)⟩
Assertion
Ref Expression
uhgrspan1lem3 (iEdg‘𝑆) = (𝐼𝐹)

Proof of Theorem uhgrspan1lem3
StepHypRef Expression
1 uhgrspan1.s . . 3 𝑆 = ⟨(𝑉 ∖ {𝑁}), (𝐼𝐹)⟩
21fveq2i 6886 . 2 (iEdg‘𝑆) = (iEdg‘⟨(𝑉 ∖ {𝑁}), (𝐼𝐹)⟩)
3 uhgrspan1.v . . . 4 𝑉 = (Vtx‘𝐺)
4 uhgrspan1.i . . . 4 𝐼 = (iEdg‘𝐺)
5 uhgrspan1.f . . . 4 𝐹 = {𝑖 ∈ dom 𝐼𝑁 ∉ (𝐼𝑖)}
63, 4, 5uhgrspan1lem1 29631 . . 3 ((𝑉 ∖ {𝑁}) ∈ V ∧ (𝐼𝐹) ∈ V)
7 opiedgfv 29338 . . 3 (((𝑉 ∖ {𝑁}) ∈ V ∧ (𝐼𝐹) ∈ V) → (iEdg‘⟨(𝑉 ∖ {𝑁}), (𝐼𝐹)⟩) = (𝐼𝐹))
86, 7ax-mp 5 . 2 (iEdg‘⟨(𝑉 ∖ {𝑁}), (𝐼𝐹)⟩) = (𝐼𝐹)
92, 8eqtri 2786 1 (iEdg‘𝑆) = (𝐼𝐹)
Colors of variables: wff setvar class
Syntax hints:  wa 400   = wceq 1570  wcel 2143  wnel 3064  {crab 3416  Vcvv 3455  cdif 3903  {csn 4590  cop 4596  dom cdm 5663  cres 5665  cfv 6538  Vtxcvtx 29327  iEdgciedg 29328
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1825  ax-4 1839  ax-5 1940  ax-6 1997  ax-7 2038  ax-8 2145  ax-9 2153  ax-10 2176  ax-11 2192  ax-12 2213  ax-ext 2735  ax-sep 5258  ax-nul 5270  ax-pr 5406  ax-un 7734
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1810  df-nf 1814  df-sb 2097  df-mo 2567  df-eu 2597  df-clab 2742  df-cleq 2755  df-clel 2838  df-nfc 2912  df-ne 2959  df-ral 3080  df-rex 3090  df-rab 3417  df-v 3457  df-dif 3909  df-un 3911  df-in 3913  df-ss 3923  df-nul 4288  df-if 4489  df-sn 4591  df-pr 4593  df-op 4597  df-uni 4874  df-br 5111  df-opab 5175  df-mpt 5194  df-id 5558  df-xp 5669  df-rel 5670  df-cnv 5671  df-co 5672  df-dm 5673  df-rn 5674  df-res 5675  df-iota 6494  df-fun 6540  df-fv 6546  df-2nd 7988  df-iedg 29330
This theorem is referenced by:  uhgrspan1  29634  upgrres  29637  umgrres  29638  usgrres  29639
  Copyright terms: Public domain W3C validator