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| Mirrors > Home > ILE Home > Th. List > vtxduspgrfvedgfilem | GIF version | ||
| Description: Lemma for vtxduspgrfvedgfi 16107 and vtxdusgrfvedgfi 16108. (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 2229 | . . 3 ⊢ (iEdg‘𝐺) = (iEdg‘𝐺) | |
| 3 | eqid 2229 | . . 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 16020 | . . . 4 ⊢ (𝐺 ∈ USPGraph → 𝐺 ∈ UPGraph) | |
| 9 | 7, 8 | syl 14 | . . 3 ⊢ (𝜑 → 𝐺 ∈ UPGraph) |
| 10 | 1, 2, 3, 4, 5, 6, 9 | vtxedgfi 16095 | . 2 ⊢ (𝜑 → {𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)} ∈ Fin) |
| 11 | uspgrushgr 16019 | . . . 4 ⊢ (𝐺 ∈ USPGraph → 𝐺 ∈ USHGraph) | |
| 12 | 7, 11 | syl 14 | . . 3 ⊢ (𝜑 → 𝐺 ∈ USHGraph) |
| 13 | vtxdushgrfvedg.e | . . . 4 ⊢ 𝐸 = (Edg‘𝐺) | |
| 14 | eqid 2229 | . . . 4 ⊢ {𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)} = {𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)} | |
| 15 | eleq2w 2291 | . . . . 5 ⊢ (𝑒 = 𝑐 → (𝑈 ∈ 𝑒 ↔ 𝑈 ∈ 𝑐)) | |
| 16 | 15 | cbvrabv 2799 | . . . 4 ⊢ {𝑒 ∈ 𝐸 ∣ 𝑈 ∈ 𝑒} = {𝑐 ∈ 𝐸 ∣ 𝑈 ∈ 𝑐} |
| 17 | eqid 2229 | . . . 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 16065 | . . 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 11041 | 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 1395 ∈ wcel 2200 {crab 2512 ↦ cmpt 4148 dom cdm 4723 –1-1-onto→wf1o 5323 ‘cfv 5324 Fincfn 6904 ♯chash 11027 Vtxcvtx 15853 iEdgciedg 15854 Edgcedg 15898 USHGraphcushgr 15909 UPGraphcupgr 15932 USPGraphcuspgr 15992 |
| 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 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-13 2202 ax-14 2203 ax-ext 2211 ax-coll 4202 ax-sep 4205 ax-nul 4213 ax-pow 4262 ax-pr 4297 ax-un 4528 ax-setind 4633 ax-iinf 4684 ax-cnex 8113 ax-resscn 8114 ax-1cn 8115 ax-1re 8116 ax-icn 8117 ax-addcl 8118 ax-addrcl 8119 ax-mulcl 8120 ax-addcom 8122 ax-mulcom 8123 ax-addass 8124 ax-mulass 8125 ax-distr 8126 ax-i2m1 8127 ax-0lt1 8128 ax-1rid 8129 ax-0id 8130 ax-rnegex 8131 ax-cnre 8133 ax-pre-ltirr 8134 ax-pre-ltwlin 8135 ax-pre-lttrn 8136 ax-pre-ltadd 8138 |
| This theorem depends on definitions: df-bi 117 df-dc 840 df-3or 1003 df-3an 1004 df-tru 1398 df-fal 1401 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ne 2401 df-nel 2496 df-ral 2513 df-rex 2514 df-reu 2515 df-rab 2517 df-v 2802 df-sbc 3030 df-csb 3126 df-dif 3200 df-un 3202 df-in 3204 df-ss 3211 df-nul 3493 df-if 3604 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-int 3927 df-iun 3970 df-br 4087 df-opab 4149 df-mpt 4150 df-tr 4186 df-id 4388 df-iord 4461 df-on 4463 df-ilim 4464 df-suc 4466 df-iom 4687 df-xp 4729 df-rel 4730 df-cnv 4731 df-co 4732 df-dm 4733 df-rn 4734 df-res 4735 df-ima 4736 df-iota 5284 df-fun 5326 df-fn 5327 df-f 5328 df-f1 5329 df-fo 5330 df-f1o 5331 df-fv 5332 df-riota 5966 df-ov 6016 df-oprab 6017 df-mpo 6018 df-1st 6298 df-2nd 6299 df-recs 6466 df-frec 6552 df-1o 6577 df-2o 6578 df-er 6697 df-en 6905 df-dom 6906 df-fin 6907 df-pnf 8206 df-mnf 8207 df-xr 8208 df-ltxr 8209 df-le 8210 df-sub 8342 df-neg 8343 df-inn 9134 df-2 9192 df-3 9193 df-4 9194 df-5 9195 df-6 9196 df-7 9197 df-8 9198 df-9 9199 df-n0 9393 df-z 9470 df-dec 9602 df-uz 9746 df-ihash 11028 df-ndx 13075 df-slot 13076 df-base 13078 df-edgf 15846 df-vtx 15855 df-iedg 15856 df-edg 15899 df-uhgrm 15910 df-ushgrm 15911 df-upgren 15934 df-uspgren 15994 |
| This theorem is referenced by: vtxduspgrfvedgfi 16107 vtxdusgrfvedgfi 16108 |
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