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| Mirrors > Home > ILE Home > Th. List > vtxduspgrfvedgfilem | GIF version | ||
| Description: Lemma for vtxduspgrfvedgfi 16296 and vtxdusgrfvedgfi 16297. (Contributed by AV, 12-Dec-2020.) (Proof shortened by AV, 5-May-2021.) |
| Ref | Expression |
|---|---|
| vtxdushgrfvedg.v | ⊢ 𝑉 = (Vtx‘𝐺) |
| vtxdushgrfvedg.e | ⊢ 𝐸 = (Edg‘𝐺) |
| vtxduspgrfvedgfi.fi | ⊢ (𝜑 → dom (iEdg‘𝐺) ∈ Fin) |
| vtxduspgrfvedgfi.v | ⊢ (𝜑 → 𝑉 ∈ Fin) |
| vtxduspgrfvedgfi.u | ⊢ (𝜑 → 𝑈 ∈ 𝑉) |
| vtxduspgrfvedgfi.g | ⊢ (𝜑 → 𝐺 ∈ USPGraph) |
| Ref | Expression |
|---|---|
| vtxduspgrfvedgfilem | ⊢ (𝜑 → (♯‘{𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)}) = (♯‘{𝑒 ∈ 𝐸 ∣ 𝑈 ∈ 𝑒})) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vtxdushgrfvedg.v | . . 3 ⊢ 𝑉 = (Vtx‘𝐺) | |
| 2 | eqid 2232 | . . 3 ⊢ (iEdg‘𝐺) = (iEdg‘𝐺) | |
| 3 | eqid 2232 | . . 3 ⊢ dom (iEdg‘𝐺) = dom (iEdg‘𝐺) | |
| 4 | vtxduspgrfvedgfi.fi | . . 3 ⊢ (𝜑 → dom (iEdg‘𝐺) ∈ Fin) | |
| 5 | vtxduspgrfvedgfi.v | . . 3 ⊢ (𝜑 → 𝑉 ∈ Fin) | |
| 6 | vtxduspgrfvedgfi.u | . . 3 ⊢ (𝜑 → 𝑈 ∈ 𝑉) | |
| 7 | vtxduspgrfvedgfi.g | . . . 4 ⊢ (𝜑 → 𝐺 ∈ USPGraph) | |
| 8 | uspgrupgr 16176 | . . . 4 ⊢ (𝐺 ∈ USPGraph → 𝐺 ∈ UPGraph) | |
| 9 | 7, 8 | syl 14 | . . 3 ⊢ (𝜑 → 𝐺 ∈ UPGraph) |
| 10 | 1, 2, 3, 4, 5, 6, 9 | vtxedgfi 16284 | . 2 ⊢ (𝜑 → {𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)} ∈ Fin) |
| 11 | uspgrushgr 16175 | . . . 4 ⊢ (𝐺 ∈ USPGraph → 𝐺 ∈ USHGraph) | |
| 12 | 7, 11 | syl 14 | . . 3 ⊢ (𝜑 → 𝐺 ∈ USHGraph) |
| 13 | vtxdushgrfvedg.e | . . . 4 ⊢ 𝐸 = (Edg‘𝐺) | |
| 14 | eqid 2232 | . . . 4 ⊢ {𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)} = {𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)} | |
| 15 | eleq2w 2294 | . . . . 5 ⊢ (𝑒 = 𝑐 → (𝑈 ∈ 𝑒 ↔ 𝑈 ∈ 𝑐)) | |
| 16 | 15 | cbvrabv 2812 | . . . 4 ⊢ {𝑒 ∈ 𝐸 ∣ 𝑈 ∈ 𝑒} = {𝑐 ∈ 𝐸 ∣ 𝑈 ∈ 𝑐} |
| 17 | eqid 2232 | . . . 4 ⊢ (𝑥 ∈ {𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)} ↦ ((iEdg‘𝐺)‘𝑥)) = (𝑥 ∈ {𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)} ↦ ((iEdg‘𝐺)‘𝑥)) | |
| 18 | 13, 2, 1, 14, 16, 17 | ushgredgedg 16221 | . . 3 ⊢ ((𝐺 ∈ USHGraph ∧ 𝑈 ∈ 𝑉) → (𝑥 ∈ {𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)} ↦ ((iEdg‘𝐺)‘𝑥)):{𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)}–1-1-onto→{𝑒 ∈ 𝐸 ∣ 𝑈 ∈ 𝑒}) |
| 19 | 12, 6, 18 | syl2anc 411 | . 2 ⊢ (𝜑 → (𝑥 ∈ {𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)} ↦ ((iEdg‘𝐺)‘𝑥)):{𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)}–1-1-onto→{𝑒 ∈ 𝐸 ∣ 𝑈 ∈ 𝑒}) |
| 20 | 10, 19 | fihasheqf1od 11152 | 1 ⊢ (𝜑 → (♯‘{𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)}) = (♯‘{𝑒 ∈ 𝐸 ∣ 𝑈 ∈ 𝑒})) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 = wceq 1398 ∈ wcel 2203 {crab 2524 ↦ cmpt 4171 dom cdm 4749 –1-1-onto→wf1o 5351 ‘cfv 5352 Fincfn 6975 ♯chash 11138 Vtxcvtx 16007 iEdgciedg 16008 Edgcedg 16052 USHGraphcushgr 16063 UPGraphcupgr 16086 USPGraphcuspgr 16148 |
| 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 2205 ax-14 2206 ax-ext 2214 ax-coll 4225 ax-sep 4228 ax-nul 4236 ax-pow 4287 ax-pr 4322 ax-un 4554 ax-setind 4659 ax-iinf 4710 ax-cnex 8218 ax-resscn 8219 ax-1cn 8220 ax-1re 8221 ax-icn 8222 ax-addcl 8223 ax-addrcl 8224 ax-mulcl 8225 ax-addcom 8227 ax-mulcom 8228 ax-addass 8229 ax-mulass 8230 ax-distr 8231 ax-i2m1 8232 ax-0lt1 8233 ax-1rid 8234 ax-0id 8235 ax-rnegex 8236 ax-cnre 8238 ax-pre-ltirr 8239 ax-pre-ltwlin 8240 ax-pre-lttrn 8241 ax-pre-ltadd 8243 |
| This theorem depends on definitions: df-bi 117 df-dc 843 df-3or 1006 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ne 2413 df-nel 2508 df-ral 2525 df-rex 2526 df-reu 2527 df-rab 2529 df-v 2815 df-sbc 3043 df-csb 3139 df-dif 3213 df-un 3215 df-in 3217 df-ss 3224 df-nul 3509 df-if 3621 df-pw 3671 df-sn 3695 df-pr 3696 df-op 3698 df-uni 3915 df-int 3950 df-iun 3993 df-br 4110 df-opab 4172 df-mpt 4173 df-tr 4209 df-id 4414 df-iord 4487 df-on 4489 df-ilim 4490 df-suc 4492 df-iom 4713 df-xp 4755 df-rel 4756 df-cnv 4757 df-co 4758 df-dm 4759 df-rn 4760 df-res 4761 df-ima 4762 df-iota 5312 df-fun 5354 df-fn 5355 df-f 5356 df-f1 5357 df-fo 5358 df-f1o 5359 df-fv 5360 df-riota 6003 df-ov 6053 df-oprab 6054 df-mpo 6055 df-1st 6334 df-2nd 6335 df-recs 6536 df-frec 6622 df-1o 6647 df-2o 6648 df-er 6767 df-en 6976 df-dom 6977 df-fin 6978 df-pnf 8310 df-mnf 8311 df-xr 8312 df-ltxr 8313 df-le 8314 df-sub 8446 df-neg 8447 df-inn 9238 df-2 9296 df-3 9297 df-4 9298 df-5 9299 df-6 9300 df-7 9301 df-8 9302 df-9 9303 df-n0 9497 df-z 9578 df-dec 9710 df-uz 9854 df-ihash 11139 df-ndx 13215 df-slot 13216 df-base 13218 df-edgf 16000 df-vtx 16009 df-iedg 16010 df-edg 16053 df-uhgrm 16064 df-ushgrm 16065 df-upgren 16088 df-uspgren 16150 |
| This theorem is referenced by: vtxduspgrfvedgfi 16296 vtxdusgrfvedgfi 16297 |
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