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| Mirrors > Home > ILE Home > Th. List > uhgrfun | GIF version | ||
| Description: The edge function of an undirected hypergraph is a function. (Contributed by Alexander van der Vekens, 26-Dec-2017.) (Revised by AV, 15-Dec-2020.) |
| Ref | Expression |
|---|---|
| uhgrfun.e | ⊢ 𝐸 = (iEdg‘𝐺) |
| Ref | Expression |
|---|---|
| uhgrfun | ⊢ (𝐺 ∈ UHGraph → Fun 𝐸) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2234 | . . 3 ⊢ (Vtx‘𝐺) = (Vtx‘𝐺) | |
| 2 | uhgrfun.e | . . 3 ⊢ 𝐸 = (iEdg‘𝐺) | |
| 3 | 1, 2 | uhgrfm 16117 | . 2 ⊢ (𝐺 ∈ UHGraph → 𝐸:dom 𝐸⟶{𝑠 ∈ 𝒫 (Vtx‘𝐺) ∣ ∃𝑗 𝑗 ∈ 𝑠}) |
| 4 | 3 | ffund 5514 | 1 ⊢ (𝐺 ∈ UHGraph → Fun 𝐸) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 ∃wex 1541 ∈ wcel 2205 {crab 2526 𝒫 cpw 3671 dom cdm 4751 Fun wfun 5348 ‘cfv 5354 Vtxcvtx 16056 iEdgciedg 16057 UHGraphcuhgr 16111 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2207 ax-14 2208 ax-ext 2216 ax-sep 4230 ax-pow 4289 ax-pr 4324 ax-un 4556 ax-setind 4661 ax-cnex 8223 ax-resscn 8224 ax-1cn 8225 ax-1re 8226 ax-icn 8227 ax-addcl 8228 ax-addrcl 8229 ax-mulcl 8230 ax-addcom 8232 ax-mulcom 8233 ax-addass 8234 ax-mulass 8235 ax-distr 8236 ax-i2m1 8237 ax-1rid 8239 ax-0id 8240 ax-rnegex 8241 ax-cnre 8243 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-ral 2527 df-rex 2528 df-reu 2529 df-rab 2531 df-v 2817 df-sbc 3045 df-csb 3141 df-dif 3215 df-un 3217 df-in 3219 df-ss 3226 df-if 3623 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-int 3952 df-br 4112 df-opab 4174 df-mpt 4175 df-id 4416 df-xp 4757 df-rel 4758 df-cnv 4759 df-co 4760 df-dm 4761 df-rn 4762 df-res 4763 df-iota 5314 df-fun 5356 df-fn 5357 df-f 5358 df-fo 5360 df-fv 5362 df-riota 6005 df-ov 6055 df-oprab 6056 df-mpo 6057 df-1st 6336 df-2nd 6337 df-sub 8451 df-inn 9243 df-2 9301 df-3 9302 df-4 9303 df-5 9304 df-6 9305 df-7 9306 df-8 9307 df-9 9308 df-n0 9502 df-dec 9716 df-ndx 13236 df-slot 13237 df-base 13239 df-edgf 16049 df-vtx 16058 df-iedg 16059 df-uhgrm 16113 |
| This theorem is referenced by: lpvtx 16123 umgrnloopv 16158 uhgredgiedgb 16178 uhgriedg0edg0 16179 uhgrvtxedgiedgb 16187 uhgr2edg 16250 ushgredgedg 16270 ushgredgedgloop 16272 0uhgrsubgr 16309 uhgrsubgrself 16310 subgruhgrfun 16312 subgruhgredgdm 16314 subumgredg2en 16315 subupgr 16317 uhgrspansubgrlem 16320 uhgrspansubgr 16321 upgredginwlk 16400 eulerpathprum 16524 |
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