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| Mirrors > Home > MPE Home > Th. List > cusgr0v | Structured version Visualization version GIF version | ||
| Description: A graph with no vertices and no edges is a complete simple graph. (Contributed by Alexander van der Vekens, 13-Oct-2017.) (Revised by AV, 1-Nov-2020.) |
| Ref | Expression |
|---|---|
| cplgr0v.v | ⊢ 𝑉 = (Vtx‘𝐺) |
| Ref | Expression |
|---|---|
| cusgr0v | ⊢ ((𝐺 ∈ 𝑊 ∧ 𝑉 = ∅ ∧ (iEdg‘𝐺) = ∅) → 𝐺 ∈ ComplUSGraph) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cplgr0v.v | . . . 4 ⊢ 𝑉 = (Vtx‘𝐺) | |
| 2 | 1 | eqeq1i 2742 | . . 3 ⊢ (𝑉 = ∅ ↔ (Vtx‘𝐺) = ∅) |
| 3 | usgr0v 29324 | . . 3 ⊢ ((𝐺 ∈ 𝑊 ∧ (Vtx‘𝐺) = ∅ ∧ (iEdg‘𝐺) = ∅) → 𝐺 ∈ USGraph) | |
| 4 | 2, 3 | syl3an2b 1407 | . 2 ⊢ ((𝐺 ∈ 𝑊 ∧ 𝑉 = ∅ ∧ (iEdg‘𝐺) = ∅) → 𝐺 ∈ USGraph) |
| 5 | 1 | cplgr0v 29510 | . . 3 ⊢ ((𝐺 ∈ 𝑊 ∧ 𝑉 = ∅) → 𝐺 ∈ ComplGraph) |
| 6 | 5 | 3adant3 1133 | . 2 ⊢ ((𝐺 ∈ 𝑊 ∧ 𝑉 = ∅ ∧ (iEdg‘𝐺) = ∅) → 𝐺 ∈ ComplGraph) |
| 7 | iscusgr 29501 | . 2 ⊢ (𝐺 ∈ ComplUSGraph ↔ (𝐺 ∈ USGraph ∧ 𝐺 ∈ ComplGraph)) | |
| 8 | 4, 6, 7 | sylanbrc 584 | 1 ⊢ ((𝐺 ∈ 𝑊 ∧ 𝑉 = ∅ ∧ (iEdg‘𝐺) = ∅) → 𝐺 ∈ ComplUSGraph) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ w3a 1087 = wceq 1542 ∈ wcel 2114 ∅c0 4274 ‘cfv 6492 Vtxcvtx 29079 iEdgciedg 29080 USGraphcusgr 29232 ComplGraphccplgr 29492 ComplUSGraphccusgr 29493 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5231 ax-nul 5241 ax-pow 5302 ax-pr 5370 ax-un 7682 ax-resscn 11086 ax-1cn 11087 ax-icn 11088 ax-addcl 11089 ax-addrcl 11090 ax-mulcl 11091 ax-mulrcl 11092 ax-i2m1 11097 ax-1ne0 11098 ax-rrecex 11101 ax-cnre 11102 ax-pre-lttri 11103 ax-pre-lttrn 11104 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5519 df-po 5532 df-so 5533 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-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-ov 7363 df-er 8636 df-en 8887 df-dom 8888 df-sdom 8889 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-2 12235 df-uhgr 29141 df-upgr 29165 df-uspgr 29233 df-usgr 29234 df-uvtx 29469 df-cplgr 29494 df-cusgr 29495 |
| This theorem is referenced by: (None) |
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