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| Mirrors > Home > MPE Home > Th. List > df-cplgr | Structured version Visualization version GIF version | ||
| Description: Define the class of all complete "graphs". A class/graph is called complete if every pair of distinct vertices is connected by an edge, i.e., each vertex has all other vertices as neighbors or, in other words, each vertex is a universal vertex. (Contributed by AV, 24-Oct-2020.) (Revised by TA, 15-Feb-2022.) |
| Ref | Expression |
|---|---|
| df-cplgr | ⊢ ComplGraph = {𝑔 ∣ (UnivVtx‘𝑔) = (Vtx‘𝑔)} |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ccplgr 29494 | . 2 class ComplGraph | |
| 2 | vg | . . . . . 6 setvar 𝑔 | |
| 3 | 2 | cv 1541 | . . . . 5 class 𝑔 |
| 4 | cuvtx 29470 | . . . . 5 class UnivVtx | |
| 5 | 3, 4 | cfv 6500 | . . . 4 class (UnivVtx‘𝑔) |
| 6 | cvtx 29081 | . . . . 5 class Vtx | |
| 7 | 3, 6 | cfv 6500 | . . . 4 class (Vtx‘𝑔) |
| 8 | 5, 7 | wceq 1542 | . . 3 wff (UnivVtx‘𝑔) = (Vtx‘𝑔) |
| 9 | 8, 2 | cab 2715 | . 2 class {𝑔 ∣ (UnivVtx‘𝑔) = (Vtx‘𝑔)} |
| 10 | 1, 9 | wceq 1542 | 1 wff ComplGraph = {𝑔 ∣ (UnivVtx‘𝑔) = (Vtx‘𝑔)} |
| Colors of variables: wff setvar class |
| This definition is referenced by: cplgruvtxb 29498 |
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