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| Mirrors > Home > ILE Home > Th. List > vtxduspgrfvedgfilem | GIF version | ||
| Description: Lemma for vtxduspgrfvedgfi 16747 and vtxdusgrfvedgfi 16748. (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 2238 | . . 3 ⊢ (iEdg‘𝐺) = (iEdg‘𝐺) | |
| 3 | eqid 2238 | . . 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 16627 | . . . 4 ⊢ (𝐺 ∈ USPGraph → 𝐺 ∈ UPGraph) | |
| 9 | 7, 8 | syl 14 | . . 3 ⊢ (𝜑 → 𝐺 ∈ UPGraph) |
| 10 | 1, 2, 3, 4, 5, 6, 9 | vtxedgfi 16735 | . 2 ⊢ (𝜑 → {𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)} ∈ Fin) |
| 11 | uspgrushgr 16626 | . . . 4 ⊢ (𝐺 ∈ USPGraph → 𝐺 ∈ USHGraph) | |
| 12 | 7, 11 | syl 14 | . . 3 ⊢ (𝜑 → 𝐺 ∈ USHGraph) |
| 13 | vtxdushgrfvedg.e | . . . 4 ⊢ 𝐸 = (Edg‘𝐺) | |
| 14 | eqid 2238 | . . . 4 ⊢ {𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)} = {𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)} | |
| 15 | eleq2w 2300 | . . . . 5 ⊢ (𝑒 = 𝑐 → (𝑈 ∈ 𝑒 ↔ 𝑈 ∈ 𝑐)) | |
| 16 | 15 | cbvrabv 2820 | . . . 4 ⊢ {𝑒 ∈ 𝐸 ∣ 𝑈 ∈ 𝑒} = {𝑐 ∈ 𝐸 ∣ 𝑈 ∈ 𝑐} |
| 17 | eqid 2238 | . . . 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 16672 | . . 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 415 | . 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 11250 | 1 ⊢ (𝜑 → (♯‘{𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)}) = (♯‘{𝑒 ∈ 𝐸 ∣ 𝑈 ∈ 𝑒})) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 = wceq 1402 ∈ wcel 2209 {crab 2532 ↦ cmpt 4193 dom cdm 4776 –1-1-onto→wf1o 5379 ‘cfv 5380 Fincfn 7026 ♯chash 11236 Vtxcvtx 16458 iEdgciedg 16459 Edgcedg 16503 USHGraphcushgr 16514 UPGraphcupgr 16537 USPGraphcuspgr 16599 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-coll 4248 ax-sep 4251 ax-nul 4261 ax-pow 4313 ax-pr 4348 ax-un 4580 ax-setind 4686 ax-iinf 4737 ax-cnex 8276 ax-resscn 8277 ax-1cn 8278 ax-1re 8279 ax-icn 8280 ax-addcl 8281 ax-addrcl 8282 ax-mulcl 8283 ax-addcom 8285 ax-mulcom 8286 ax-addass 8287 ax-mulass 8288 ax-distr 8289 ax-i2m1 8290 ax-0lt1 8291 ax-1rid 8292 ax-0id 8293 ax-rnegex 8294 ax-cnre 8296 ax-pre-ltirr 8297 ax-pre-ltwlin 8298 ax-pre-lttrn 8299 ax-pre-ltadd 8301 |
| This proof depends on definitions: df-bi 117 df-dc 847 df-3or 1010 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-reu 2535 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-if 3639 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-iun 4014 df-br 4132 df-opab 4194 df-mpt 4195 df-tr 4232 df-id 4440 df-iord 4513 df-on 4515 df-ilim 4516 df-suc 4518 df-iom 4740 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-rn 4787 df-res 4788 df-ima 4789 df-iota 5340 df-fun 5382 df-fn 5383 df-f 5384 df-f1 5385 df-fo 5386 df-f1o 5387 df-fv 5388 df-riota 6041 df-ov 6091 df-oprab 6092 df-mpo 6093 df-1st 6378 df-2nd 6379 df-recs 6580 df-frec 6666 df-1o 6691 df-2o 6692 df-er 6811 df-en 7027 df-dom 7028 df-fin 7029 df-pnf 8368 df-mnf 8369 df-xr 8370 df-ltxr 8371 df-le 8372 df-sub 8506 df-neg 8507 df-inn 9314 df-2 9372 df-3 9373 df-4 9374 df-5 9375 df-6 9376 df-7 9377 df-8 9378 df-9 9379 df-n0 9575 df-z 9656 df-dec 9789 df-uz 9938 df-ihash 11237 df-ndx 13413 df-slot 13414 df-base 13416 df-edgf 16451 df-vtx 16460 df-iedg 16461 df-edg 16504 df-uhgrm 16515 df-ushgrm 16516 df-upgren 16539 df-uspgren 16601 |
| This theorem is used by: vtxduspgrfvedgfi 16747 vtxdusgrfvedgfi 16748 |
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