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| Mirrors > Home > ILE Home > Th. List > usgr1eop | GIF version | ||
| Description: A simple graph with (at least) two different vertices and one edge. If the two vertices were not different, the edge would be a loop. (Contributed by Alexander van der Vekens, 10-Aug-2017.) (Revised by AV, 18-Oct-2020.) |
| Ref | Expression |
|---|---|
| usgr1eop | ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → (𝐵 ≠ 𝐶 → 〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉 ∈ USGraph)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqid 2234 | . . 3 ⊢ (Vtx‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉) = (Vtx‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉) | |
| 2 | simpllr 536 | . . 3 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 𝐴 ∈ 𝑋) | |
| 3 | simplrl 537 | . . . 4 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 𝐵 ∈ 𝑉) | |
| 4 | simpll 527 | . . . . . 6 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → 𝑉 ∈ 𝑊) | |
| 5 | 4 | adantr 276 | . . . . 5 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 𝑉 ∈ 𝑊) |
| 6 | simplr 529 | . . . . . . . 8 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → 𝐴 ∈ 𝑋) | |
| 7 | prexg 4327 | . . . . . . . . 9 ⊢ ((𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉) → {𝐵, 𝐶} ∈ V) | |
| 8 | 7 | adantl 277 | . . . . . . . 8 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → {𝐵, 𝐶} ∈ V) |
| 9 | opexg 4346 | . . . . . . . 8 ⊢ ((𝐴 ∈ 𝑋 ∧ {𝐵, 𝐶} ∈ V) → 〈𝐴, {𝐵, 𝐶}〉 ∈ V) | |
| 10 | 6, 8, 9 | syl2anc 411 | . . . . . . 7 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → 〈𝐴, {𝐵, 𝐶}〉 ∈ V) |
| 11 | snexg 4299 | . . . . . . 7 ⊢ (〈𝐴, {𝐵, 𝐶}〉 ∈ V → {〈𝐴, {𝐵, 𝐶}〉} ∈ V) | |
| 12 | 10, 11 | syl 14 | . . . . . 6 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → {〈𝐴, {𝐵, 𝐶}〉} ∈ V) |
| 13 | 12 | adantr 276 | . . . . 5 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → {〈𝐴, {𝐵, 𝐶}〉} ∈ V) |
| 14 | opvtxfv 16066 | . . . . 5 ⊢ ((𝑉 ∈ 𝑊 ∧ {〈𝐴, {𝐵, 𝐶}〉} ∈ V) → (Vtx‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉) = 𝑉) | |
| 15 | 5, 13, 14 | syl2anc 411 | . . . 4 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → (Vtx‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉) = 𝑉) |
| 16 | 3, 15 | eleqtrrd 2314 | . . 3 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 𝐵 ∈ (Vtx‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉)) |
| 17 | simprr 533 | . . . . 5 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → 𝐶 ∈ 𝑉) | |
| 18 | 4, 12, 14 | syl2anc 411 | . . . . 5 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → (Vtx‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉) = 𝑉) |
| 19 | 17, 18 | eleqtrrd 2314 | . . . 4 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → 𝐶 ∈ (Vtx‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉)) |
| 20 | 19 | adantr 276 | . . 3 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 𝐶 ∈ (Vtx‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉)) |
| 21 | opiedgfv 16069 | . . . 4 ⊢ ((𝑉 ∈ 𝑊 ∧ {〈𝐴, {𝐵, 𝐶}〉} ∈ V) → (iEdg‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉) = {〈𝐴, {𝐵, 𝐶}〉}) | |
| 22 | 5, 13, 21 | syl2anc 411 | . . 3 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → (iEdg‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉) = {〈𝐴, {𝐵, 𝐶}〉}) |
| 23 | simpr 110 | . . 3 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 𝐵 ≠ 𝐶) | |
| 24 | 1, 2, 16, 20, 22, 23 | usgr1e 16285 | . 2 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉 ∈ USGraph) |
| 25 | 24 | ex 115 | 1 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → (𝐵 ≠ 𝐶 → 〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉 ∈ USGraph)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 = wceq 1398 ∈ wcel 2205 ≠ wne 2414 Vcvv 2815 {csn 3691 {cpr 3692 〈cop 3694 ‘cfv 5354 Vtxcvtx 16056 iEdgciedg 16057 USGraphcusgr 16198 |
| 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 2207 ax-14 2208 ax-ext 2216 ax-sep 4230 ax-nul 4238 ax-pow 4289 ax-pr 4324 ax-un 4556 ax-setind 4661 ax-iinf 4712 ax-cnex 8223 ax-resscn 8224 ax-1cn 8225 ax-1re 8226 ax-icn 8227 ax-addcl 8228 ax-addrcl 8229 ax-mulcl 8230 ax-addcom 8232 ax-mulcom 8233 ax-addass 8234 ax-mulass 8235 ax-distr 8236 ax-i2m1 8237 ax-1rid 8239 ax-0id 8240 ax-rnegex 8241 ax-cnre 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 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-ral 2527 df-rex 2528 df-reu 2529 df-rab 2531 df-v 2817 df-sbc 3045 df-csb 3141 df-dif 3215 df-un 3217 df-in 3219 df-ss 3226 df-nul 3511 df-if 3623 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-int 3952 df-br 4112 df-opab 4174 df-mpt 4175 df-tr 4211 df-id 4416 df-iord 4489 df-on 4491 df-suc 4494 df-iom 4715 df-xp 4757 df-rel 4758 df-cnv 4759 df-co 4760 df-dm 4761 df-rn 4762 df-res 4763 df-ima 4764 df-iota 5314 df-fun 5356 df-fn 5357 df-f 5358 df-f1 5359 df-fo 5360 df-f1o 5361 df-fv 5362 df-riota 6005 df-ov 6055 df-oprab 6056 df-mpo 6057 df-1st 6336 df-2nd 6337 df-1o 6649 df-2o 6650 df-er 6769 df-en 6978 df-sub 8451 df-inn 9243 df-2 9301 df-3 9302 df-4 9303 df-5 9304 df-6 9305 df-7 9306 df-8 9307 df-9 9308 df-n0 9502 df-dec 9716 df-ndx 13236 df-slot 13237 df-base 13239 df-edgf 16049 df-vtx 16058 df-iedg 16059 df-edg 16102 df-uspgren 16199 df-usgren 16200 |
| This theorem is referenced by: usgr2v1e2w 16290 |
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