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| Mirrors > Home > MPE Home > Th. List > usgr1eop | Structured version Visualization version 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 2736 | . . 3 ⊢ (Vtx‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉) = (Vtx‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉) | |
| 2 | simpllr 775 | . . 3 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 𝐴 ∈ 𝑋) | |
| 3 | simplrl 776 | . . . 4 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 𝐵 ∈ 𝑉) | |
| 4 | simpl 482 | . . . . . 6 ⊢ ((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) → 𝑉 ∈ 𝑊) | |
| 5 | 4 | adantr 480 | . . . . 5 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → 𝑉 ∈ 𝑊) |
| 6 | snex 5381 | . . . . . 6 ⊢ {〈𝐴, {𝐵, 𝐶}〉} ∈ V | |
| 7 | 6 | a1i 11 | . . . . 5 ⊢ (𝐵 ≠ 𝐶 → {〈𝐴, {𝐵, 𝐶}〉} ∈ V) |
| 8 | opvtxfv 29079 | . . . . 5 ⊢ ((𝑉 ∈ 𝑊 ∧ {〈𝐴, {𝐵, 𝐶}〉} ∈ V) → (Vtx‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉) = 𝑉) | |
| 9 | 5, 7, 8 | syl2an 596 | . . . 4 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → (Vtx‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉) = 𝑉) |
| 10 | 3, 9 | eleqtrrd 2839 | . . 3 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 𝐵 ∈ (Vtx‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉)) |
| 11 | simprr 772 | . . . . 5 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → 𝐶 ∈ 𝑉) | |
| 12 | 6 | a1i 11 | . . . . . 6 ⊢ ((𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉) → {〈𝐴, {𝐵, 𝐶}〉} ∈ V) |
| 13 | 4, 12, 8 | syl2an 596 | . . . . 5 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → (Vtx‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉) = 𝑉) |
| 14 | 11, 13 | eleqtrrd 2839 | . . . 4 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → 𝐶 ∈ (Vtx‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉)) |
| 15 | 14 | adantr 480 | . . 3 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 𝐶 ∈ (Vtx‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉)) |
| 16 | opiedgfv 29082 | . . . 4 ⊢ ((𝑉 ∈ 𝑊 ∧ {〈𝐴, {𝐵, 𝐶}〉} ∈ V) → (iEdg‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉) = {〈𝐴, {𝐵, 𝐶}〉}) | |
| 17 | 5, 7, 16 | syl2an 596 | . . 3 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → (iEdg‘〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉) = {〈𝐴, {𝐵, 𝐶}〉}) |
| 18 | simpr 484 | . . 3 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 𝐵 ≠ 𝐶) | |
| 19 | 1, 2, 10, 15, 17, 18 | usgr1e 29320 | . 2 ⊢ ((((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) ∧ 𝐵 ≠ 𝐶) → 〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉 ∈ USGraph) |
| 20 | 19 | ex 412 | 1 ⊢ (((𝑉 ∈ 𝑊 ∧ 𝐴 ∈ 𝑋) ∧ (𝐵 ∈ 𝑉 ∧ 𝐶 ∈ 𝑉)) → (𝐵 ≠ 𝐶 → 〈𝑉, {〈𝐴, {𝐵, 𝐶}〉}〉 ∈ USGraph)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1541 ∈ wcel 2113 ≠ wne 2932 Vcvv 3440 {csn 4580 {cpr 4582 〈cop 4586 ‘cfv 6492 Vtxcvtx 29071 iEdgciedg 29072 USGraphcusgr 29224 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2184 ax-ext 2708 ax-sep 5241 ax-nul 5251 ax-pow 5310 ax-pr 5377 ax-un 7680 ax-cnex 11084 ax-resscn 11085 ax-1cn 11086 ax-icn 11087 ax-addcl 11088 ax-addrcl 11089 ax-mulcl 11090 ax-mulrcl 11091 ax-mulcom 11092 ax-addass 11093 ax-mulass 11094 ax-distr 11095 ax-i2m1 11096 ax-1ne0 11097 ax-1rid 11098 ax-rnegex 11099 ax-rrecex 11100 ax-cnre 11101 ax-pre-lttri 11102 ax-pre-lttrn 11103 ax-pre-ltadd 11104 ax-pre-mulgt0 11105 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3061 df-reu 3351 df-rab 3400 df-v 3442 df-sbc 3741 df-csb 3850 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-pss 3921 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-int 4903 df-iun 4948 df-br 5099 df-opab 5161 df-mpt 5180 df-tr 5206 df-id 5519 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5577 df-we 5579 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6259 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7315 df-ov 7361 df-oprab 7362 df-mpo 7363 df-om 7809 df-1st 7933 df-2nd 7934 df-frecs 8223 df-wrecs 8254 df-recs 8303 df-rdg 8341 df-1o 8397 df-oadd 8401 df-er 8635 df-en 8886 df-dom 8887 df-sdom 8888 df-fin 8889 df-dju 9815 df-card 9853 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11368 df-neg 11369 df-nn 12148 df-2 12210 df-n0 12404 df-xnn0 12477 df-z 12491 df-uz 12754 df-fz 13426 df-hash 14256 df-vtx 29073 df-iedg 29074 df-edg 29123 df-uspgr 29225 df-usgr 29226 |
| This theorem is referenced by: usgr2v1e2w 29327 |
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