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| Mirrors > Home > ILE Home > Th. List > vtxduspgrfvedgfilem | GIF version | ||
| Description: Lemma for vtxduspgrfvedgfi 16151 and vtxdusgrfvedgfi 16152. (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 2231 | . . 3 ⊢ (iEdg‘𝐺) = (iEdg‘𝐺) | |
| 3 | eqid 2231 | . . 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 16031 | . . . 4 ⊢ (𝐺 ∈ USPGraph → 𝐺 ∈ UPGraph) | |
| 9 | 7, 8 | syl 14 | . . 3 ⊢ (𝜑 → 𝐺 ∈ UPGraph) |
| 10 | 1, 2, 3, 4, 5, 6, 9 | vtxedgfi 16139 | . 2 ⊢ (𝜑 → {𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)} ∈ Fin) |
| 11 | uspgrushgr 16030 | . . . 4 ⊢ (𝐺 ∈ USPGraph → 𝐺 ∈ USHGraph) | |
| 12 | 7, 11 | syl 14 | . . 3 ⊢ (𝜑 → 𝐺 ∈ USHGraph) |
| 13 | vtxdushgrfvedg.e | . . . 4 ⊢ 𝐸 = (Edg‘𝐺) | |
| 14 | eqid 2231 | . . . 4 ⊢ {𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)} = {𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)} | |
| 15 | eleq2w 2293 | . . . . 5 ⊢ (𝑒 = 𝑐 → (𝑈 ∈ 𝑒 ↔ 𝑈 ∈ 𝑐)) | |
| 16 | 15 | cbvrabv 2801 | . . . 4 ⊢ {𝑒 ∈ 𝐸 ∣ 𝑈 ∈ 𝑒} = {𝑐 ∈ 𝐸 ∣ 𝑈 ∈ 𝑐} |
| 17 | eqid 2231 | . . . 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 16076 | . . 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 11050 | 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 1397 ∈ wcel 2202 {crab 2514 ↦ cmpt 4150 dom cdm 4725 –1-1-onto→wf1o 5325 ‘cfv 5326 Fincfn 6908 ♯chash 11036 Vtxcvtx 15862 iEdgciedg 15863 Edgcedg 15907 USHGraphcushgr 15918 UPGraphcupgr 15941 USPGraphcuspgr 16003 |
| 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 2204 ax-14 2205 ax-ext 2213 ax-coll 4204 ax-sep 4207 ax-nul 4215 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-setind 4635 ax-iinf 4686 ax-cnex 8122 ax-resscn 8123 ax-1cn 8124 ax-1re 8125 ax-icn 8126 ax-addcl 8127 ax-addrcl 8128 ax-mulcl 8129 ax-addcom 8131 ax-mulcom 8132 ax-addass 8133 ax-mulass 8134 ax-distr 8135 ax-i2m1 8136 ax-0lt1 8137 ax-1rid 8138 ax-0id 8139 ax-rnegex 8140 ax-cnre 8142 ax-pre-ltirr 8143 ax-pre-ltwlin 8144 ax-pre-lttrn 8145 ax-pre-ltadd 8147 |
| This theorem depends on definitions: df-bi 117 df-dc 842 df-3or 1005 df-3an 1006 df-tru 1400 df-fal 1403 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-nel 2498 df-ral 2515 df-rex 2516 df-reu 2517 df-rab 2519 df-v 2804 df-sbc 3032 df-csb 3128 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-nul 3495 df-if 3606 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-int 3929 df-iun 3972 df-br 4089 df-opab 4151 df-mpt 4152 df-tr 4188 df-id 4390 df-iord 4463 df-on 4465 df-ilim 4466 df-suc 4468 df-iom 4689 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-res 4737 df-ima 4738 df-iota 5286 df-fun 5328 df-fn 5329 df-f 5330 df-f1 5331 df-fo 5332 df-f1o 5333 df-fv 5334 df-riota 5970 df-ov 6020 df-oprab 6021 df-mpo 6022 df-1st 6302 df-2nd 6303 df-recs 6470 df-frec 6556 df-1o 6581 df-2o 6582 df-er 6701 df-en 6909 df-dom 6910 df-fin 6911 df-pnf 8215 df-mnf 8216 df-xr 8217 df-ltxr 8218 df-le 8219 df-sub 8351 df-neg 8352 df-inn 9143 df-2 9201 df-3 9202 df-4 9203 df-5 9204 df-6 9205 df-7 9206 df-8 9207 df-9 9208 df-n0 9402 df-z 9479 df-dec 9611 df-uz 9755 df-ihash 11037 df-ndx 13084 df-slot 13085 df-base 13087 df-edgf 15855 df-vtx 15864 df-iedg 15865 df-edg 15908 df-uhgrm 15919 df-ushgrm 15920 df-upgren 15943 df-uspgren 16005 |
| This theorem is referenced by: vtxduspgrfvedgfi 16151 vtxdusgrfvedgfi 16152 |
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