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| Mirrors > Home > MPE Home > Th. List > uhgrss | Structured version Visualization version GIF version | ||
| Description: An edge is a subset of vertices. (Contributed by Alexander van der Vekens, 26-Dec-2017.) (Revised by AV, 18-Jan-2020.) |
| Ref | Expression |
|---|---|
| uhgrf.v | ⊢ 𝑉 = (Vtx‘𝐺) |
| uhgrf.e | ⊢ 𝐸 = (iEdg‘𝐺) |
| Ref | Expression |
|---|---|
| uhgrss | ⊢ ((𝐺 ∈ UHGraph ∧ 𝐹 ∈ dom 𝐸) → (𝐸‘𝐹) ⊆ 𝑉) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | uhgrf.v | . . . . 5 ⊢ 𝑉 = (Vtx‘𝐺) | |
| 2 | uhgrf.e | . . . . 5 ⊢ 𝐸 = (iEdg‘𝐺) | |
| 3 | 1, 2 | uhgrf 29443 | . . . 4 ⊢ (𝐺 ∈ UHGraph → 𝐸:dom 𝐸⟶(𝒫 𝑉 ∖ {∅})) |
| 4 | 3 | ffvelcdmda 7083 | . . 3 ⊢ ((𝐺 ∈ UHGraph ∧ 𝐹 ∈ dom 𝐸) → (𝐸‘𝐹) ∈ (𝒫 𝑉 ∖ {∅})) |
| 5 | 4 | eldifad 3918 | . 2 ⊢ ((𝐺 ∈ UHGraph ∧ 𝐹 ∈ dom 𝐸) → (𝐸‘𝐹) ∈ 𝒫 𝑉) |
| 6 | 5 | elpwid 4573 | 1 ⊢ ((𝐺 ∈ UHGraph ∧ 𝐹 ∈ dom 𝐸) → (𝐸‘𝐹) ⊆ 𝑉) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2146 ∖ cdif 3903 ⊆ wss 3906 ∅c0 4286 𝒫 cpw 4564 {csn 4591 dom cdm 5663 ‘cfv 6540 Vtxcvtx 29377 iEdgciedg 29378 UHGraphcuhgr 29437 |
| 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-12 2216 ax-ext 2737 ax-sep 5259 ax-nul 5271 ax-pr 5406 |
| 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 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-ne 2961 df-ral 3082 df-rex 3092 df-rab 3419 df-v 3459 df-sbc 3747 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-br 5112 df-opab 5176 df-id 5558 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-fv 6548 df-uhgr 29439 |
| This theorem is used by: lpvtx 29449 umgredgprv 29488 uhgrspansubgrlem 29674 uhgrspan1 29687 grimidvtxedg 48683 grimcnv 48686 upgrimtrlslem2 48703 ushggricedg 48725 clnbgrgrimlem 48731 grimedg 48733 |
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