Mathbox for Alexander van der Vekens |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > uhgrauhgr | Structured version Visualization version GIF version |
Description: Equivalence of the definition for undirected hypergraphs. (Contributed by AV, 19-Jan-2020.) (Revised by AV, 9-Oct-2020.) |
Ref | Expression |
---|---|
uhgrauhgr | ⊢ ((𝑉 UHGrph 𝐸 ∧ 𝑉 = (Vtx‘𝐺) ∧ 𝐸 = (iEdg‘𝐺)) → (𝐺 ∈ 𝑊 → 𝐺 ∈ UHGraph )) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | uhgraf 25828 | . . . 4 ⊢ (𝑉 UHGrph 𝐸 → 𝐸:dom 𝐸⟶(𝒫 𝑉 ∖ {∅})) | |
2 | 1 | 3ad2ant1 1075 | . . 3 ⊢ ((𝑉 UHGrph 𝐸 ∧ 𝑉 = (Vtx‘𝐺) ∧ 𝐸 = (iEdg‘𝐺)) → 𝐸:dom 𝐸⟶(𝒫 𝑉 ∖ {∅})) |
3 | simp3 1056 | . . . 4 ⊢ ((𝑉 UHGrph 𝐸 ∧ 𝑉 = (Vtx‘𝐺) ∧ 𝐸 = (iEdg‘𝐺)) → 𝐸 = (iEdg‘𝐺)) | |
4 | 3 | dmeqd 5248 | . . . 4 ⊢ ((𝑉 UHGrph 𝐸 ∧ 𝑉 = (Vtx‘𝐺) ∧ 𝐸 = (iEdg‘𝐺)) → dom 𝐸 = dom (iEdg‘𝐺)) |
5 | pweq 4111 | . . . . . 6 ⊢ (𝑉 = (Vtx‘𝐺) → 𝒫 𝑉 = 𝒫 (Vtx‘𝐺)) | |
6 | 5 | difeq1d 3689 | . . . . 5 ⊢ (𝑉 = (Vtx‘𝐺) → (𝒫 𝑉 ∖ {∅}) = (𝒫 (Vtx‘𝐺) ∖ {∅})) |
7 | 6 | 3ad2ant2 1076 | . . . 4 ⊢ ((𝑉 UHGrph 𝐸 ∧ 𝑉 = (Vtx‘𝐺) ∧ 𝐸 = (iEdg‘𝐺)) → (𝒫 𝑉 ∖ {∅}) = (𝒫 (Vtx‘𝐺) ∖ {∅})) |
8 | 3, 4, 7 | feq123d 5947 | . . 3 ⊢ ((𝑉 UHGrph 𝐸 ∧ 𝑉 = (Vtx‘𝐺) ∧ 𝐸 = (iEdg‘𝐺)) → (𝐸:dom 𝐸⟶(𝒫 𝑉 ∖ {∅}) ↔ (iEdg‘𝐺):dom (iEdg‘𝐺)⟶(𝒫 (Vtx‘𝐺) ∖ {∅}))) |
9 | 2, 8 | mpbid 221 | . 2 ⊢ ((𝑉 UHGrph 𝐸 ∧ 𝑉 = (Vtx‘𝐺) ∧ 𝐸 = (iEdg‘𝐺)) → (iEdg‘𝐺):dom (iEdg‘𝐺)⟶(𝒫 (Vtx‘𝐺) ∖ {∅})) |
10 | eqid 2610 | . . 3 ⊢ (Vtx‘𝐺) = (Vtx‘𝐺) | |
11 | eqid 2610 | . . 3 ⊢ (iEdg‘𝐺) = (iEdg‘𝐺) | |
12 | 10, 11 | isuhgr 25726 | . 2 ⊢ (𝐺 ∈ 𝑊 → (𝐺 ∈ UHGraph ↔ (iEdg‘𝐺):dom (iEdg‘𝐺)⟶(𝒫 (Vtx‘𝐺) ∖ {∅}))) |
13 | 9, 12 | syl5ibrcom 236 | 1 ⊢ ((𝑉 UHGrph 𝐸 ∧ 𝑉 = (Vtx‘𝐺) ∧ 𝐸 = (iEdg‘𝐺)) → (𝐺 ∈ 𝑊 → 𝐺 ∈ UHGraph )) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ w3a 1031 = wceq 1475 ∈ wcel 1977 ∖ cdif 3537 ∅c0 3874 𝒫 cpw 4108 {csn 4125 class class class wbr 4583 dom cdm 5038 ⟶wf 5800 ‘cfv 5804 Vtxcvtx 25673 iEdgciedg 25674 UHGraph cuhgr 25722 UHGrph cuhg 25819 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pr 4833 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ral 2901 df-rex 2902 df-rab 2905 df-v 3175 df-sbc 3403 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-br 4584 df-opab 4644 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-fv 5812 df-uhgr 25724 df-uhgra 25821 |
This theorem is referenced by: uhgrauhgrbi 40377 |
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