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| Mirrors > Home > ILE Home > Th. List > vtxduspgrfvedgfilem | GIF version | ||
| Description: Lemma for vtxduspgrfvedgfi 16225 and vtxdusgrfvedgfi 16226. (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 16105 | . . . 4 ⊢ (𝐺 ∈ USPGraph → 𝐺 ∈ UPGraph) | |
| 9 | 7, 8 | syl 14 | . . 3 ⊢ (𝜑 → 𝐺 ∈ UPGraph) |
| 10 | 1, 2, 3, 4, 5, 6, 9 | vtxedgfi 16213 | . 2 ⊢ (𝜑 → {𝑖 ∈ dom (iEdg‘𝐺) ∣ 𝑈 ∈ ((iEdg‘𝐺)‘𝑖)} ∈ Fin) |
| 11 | uspgrushgr 16104 | . . . 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 2802 | . . . 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 16150 | . . 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 11097 | 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 2202 {crab 2515 ↦ cmpt 4155 dom cdm 4731 –1-1-onto→wf1o 5332 ‘cfv 5333 Fincfn 6952 ♯chash 11083 Vtxcvtx 15936 iEdgciedg 15937 Edgcedg 15981 USHGraphcushgr 15992 UPGraphcupgr 16015 USPGraphcuspgr 16077 |
| 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 2204 ax-14 2205 ax-ext 2213 ax-coll 4209 ax-sep 4212 ax-nul 4220 ax-pow 4270 ax-pr 4305 ax-un 4536 ax-setind 4641 ax-iinf 4692 ax-cnex 8166 ax-resscn 8167 ax-1cn 8168 ax-1re 8169 ax-icn 8170 ax-addcl 8171 ax-addrcl 8172 ax-mulcl 8173 ax-addcom 8175 ax-mulcom 8176 ax-addass 8177 ax-mulass 8178 ax-distr 8179 ax-i2m1 8180 ax-0lt1 8181 ax-1rid 8182 ax-0id 8183 ax-rnegex 8184 ax-cnre 8186 ax-pre-ltirr 8187 ax-pre-ltwlin 8188 ax-pre-lttrn 8189 ax-pre-ltadd 8191 |
| 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 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ne 2404 df-nel 2499 df-ral 2516 df-rex 2517 df-reu 2518 df-rab 2520 df-v 2805 df-sbc 3033 df-csb 3129 df-dif 3203 df-un 3205 df-in 3207 df-ss 3214 df-nul 3497 df-if 3608 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-int 3934 df-iun 3977 df-br 4094 df-opab 4156 df-mpt 4157 df-tr 4193 df-id 4396 df-iord 4469 df-on 4471 df-ilim 4472 df-suc 4474 df-iom 4695 df-xp 4737 df-rel 4738 df-cnv 4739 df-co 4740 df-dm 4741 df-rn 4742 df-res 4743 df-ima 4744 df-iota 5293 df-fun 5335 df-fn 5336 df-f 5337 df-f1 5338 df-fo 5339 df-f1o 5340 df-fv 5341 df-riota 5981 df-ov 6031 df-oprab 6032 df-mpo 6033 df-1st 6312 df-2nd 6313 df-recs 6514 df-frec 6600 df-1o 6625 df-2o 6626 df-er 6745 df-en 6953 df-dom 6954 df-fin 6955 df-pnf 8258 df-mnf 8259 df-xr 8260 df-ltxr 8261 df-le 8262 df-sub 8394 df-neg 8395 df-inn 9186 df-2 9244 df-3 9245 df-4 9246 df-5 9247 df-6 9248 df-7 9249 df-8 9250 df-9 9251 df-n0 9445 df-z 9524 df-dec 9656 df-uz 9800 df-ihash 11084 df-ndx 13148 df-slot 13149 df-base 13151 df-edgf 15929 df-vtx 15938 df-iedg 15939 df-edg 15982 df-uhgrm 15993 df-ushgrm 15994 df-upgren 16017 df-uspgren 16079 |
| This theorem is referenced by: vtxduspgrfvedgfi 16225 vtxdusgrfvedgfi 16226 |
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