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Mirrors > Home > MPE Home > Th. List > uhgrspan1lem1 | Structured version Visualization version GIF version |
Description: Lemma 1 for uhgrspan1 27079. (Contributed by AV, 19-Nov-2020.) |
Ref | Expression |
---|---|
uhgrspan1.v | ⊢ 𝑉 = (Vtx‘𝐺) |
uhgrspan1.i | ⊢ 𝐼 = (iEdg‘𝐺) |
uhgrspan1.f | ⊢ 𝐹 = {𝑖 ∈ dom 𝐼 ∣ 𝑁 ∉ (𝐼‘𝑖)} |
Ref | Expression |
---|---|
uhgrspan1lem1 | ⊢ ((𝑉 ∖ {𝑁}) ∈ V ∧ (𝐼 ↾ 𝐹) ∈ V) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | uhgrspan1.v | . . . 4 ⊢ 𝑉 = (Vtx‘𝐺) | |
2 | 1 | fvexi 6678 | . . 3 ⊢ 𝑉 ∈ V |
3 | 2 | difexi 5224 | . 2 ⊢ (𝑉 ∖ {𝑁}) ∈ V |
4 | uhgrspan1.i | . . . 4 ⊢ 𝐼 = (iEdg‘𝐺) | |
5 | 4 | fvexi 6678 | . . 3 ⊢ 𝐼 ∈ V |
6 | 5 | resex 5893 | . 2 ⊢ (𝐼 ↾ 𝐹) ∈ V |
7 | 3, 6 | pm3.2i 473 | 1 ⊢ ((𝑉 ∖ {𝑁}) ∈ V ∧ (𝐼 ↾ 𝐹) ∈ V) |
Colors of variables: wff setvar class |
Syntax hints: ∧ wa 398 = wceq 1533 ∈ wcel 2110 ∉ wnel 3123 {crab 3142 Vcvv 3494 ∖ cdif 3932 {csn 4560 dom cdm 5549 ↾ cres 5551 ‘cfv 6349 Vtxcvtx 26775 iEdgciedg 26776 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5195 ax-nul 5202 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-sbc 3772 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-sn 4561 df-pr 4563 df-uni 4832 df-res 5561 df-iota 6308 df-fv 6357 |
This theorem is referenced by: uhgrspan1lem2 27077 uhgrspan1lem3 27078 |
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