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| Mirrors > Home > ILE Home > Th. List > ushgrfm | GIF version | ||
| Description: The edge function of an undirected simple hypergraph is a one-to-one function into the power set of the set of vertices. (Contributed by AV, 9-Oct-2020.) |
| Ref | Expression |
|---|---|
| uhgrf.v | ⊢ 𝑉 = (Vtx‘𝐺) |
| uhgrf.e | ⊢ 𝐸 = (iEdg‘𝐺) |
| Ref | Expression |
|---|---|
| ushgrfm | ⊢ (𝐺 ∈ USHGraph → 𝐸:dom 𝐸–1-1→{𝑠 ∈ 𝒫 𝑉 ∣ ∃𝑗 𝑗 ∈ 𝑠}) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | uhgrf.v | . . 3 ⊢ 𝑉 = (Vtx‘𝐺) | |
| 2 | uhgrf.e | . . 3 ⊢ 𝐸 = (iEdg‘𝐺) | |
| 3 | 1, 2 | isushgrm 15952 | . 2 ⊢ (𝐺 ∈ USHGraph → (𝐺 ∈ USHGraph ↔ 𝐸:dom 𝐸–1-1→{𝑠 ∈ 𝒫 𝑉 ∣ ∃𝑗 𝑗 ∈ 𝑠})) |
| 4 | 3 | ibi 176 | 1 ⊢ (𝐺 ∈ USHGraph → 𝐸:dom 𝐸–1-1→{𝑠 ∈ 𝒫 𝑉 ∣ ∃𝑗 𝑗 ∈ 𝑠}) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1397 ∃wex 1540 ∈ wcel 2201 {crab 2513 𝒫 cpw 3653 dom cdm 4727 –1-1→wf1 5325 ‘cfv 5328 Vtxcvtx 15892 iEdgciedg 15893 USHGraphcushgr 15948 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2203 ax-14 2204 ax-ext 2212 ax-sep 4208 ax-pow 4266 ax-pr 4301 ax-un 4532 ax-setind 4637 ax-cnex 8128 ax-resscn 8129 ax-1cn 8130 ax-1re 8131 ax-icn 8132 ax-addcl 8133 ax-addrcl 8134 ax-mulcl 8135 ax-addcom 8137 ax-mulcom 8138 ax-addass 8139 ax-mulass 8140 ax-distr 8141 ax-i2m1 8142 ax-1rid 8144 ax-0id 8145 ax-rnegex 8146 ax-cnre 8148 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1810 df-eu 2081 df-mo 2082 df-clab 2217 df-cleq 2223 df-clel 2226 df-nfc 2362 df-ne 2402 df-ral 2514 df-rex 2515 df-reu 2516 df-rab 2518 df-v 2803 df-sbc 3031 df-csb 3127 df-dif 3201 df-un 3203 df-in 3205 df-ss 3212 df-if 3605 df-pw 3655 df-sn 3676 df-pr 3677 df-op 3679 df-uni 3895 df-int 3930 df-br 4090 df-opab 4152 df-mpt 4153 df-id 4392 df-xp 4733 df-rel 4734 df-cnv 4735 df-co 4736 df-dm 4737 df-rn 4738 df-res 4739 df-iota 5288 df-fun 5330 df-fn 5331 df-f 5332 df-f1 5333 df-fo 5334 df-fv 5336 df-riota 5976 df-ov 6026 df-oprab 6027 df-mpo 6028 df-1st 6308 df-2nd 6309 df-sub 8357 df-inn 9149 df-2 9207 df-3 9208 df-4 9209 df-5 9210 df-6 9211 df-7 9212 df-8 9213 df-9 9214 df-n0 9408 df-dec 9617 df-ndx 13108 df-slot 13109 df-base 13111 df-edgf 15885 df-vtx 15894 df-iedg 15895 df-ushgrm 15950 |
| This theorem is referenced by: ushgruhgr 15960 uspgrupgrushgr 16062 ushgredgedg 16106 ushgredgedgloop 16108 |
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