This is an inofficial mirror of http://metamath.tirix.org for personal testing of a visualizer extension only.
Description: Define the edge function (indexed edges) of a graph. (Contributed by AV, 18-Jan-2020) Use its index-independent form edgfid instead. (New usage is discouraged.)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | df-edgf | |- .ef = Slot ; 1 8 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 0 | cedgf | |- .ef |
|
| 1 | c1 | |- 1 |
|
| 2 | c8 | |- 8 |
|
| 3 | 1 2 | cdc | |- ; 1 8 |
| 4 | 3 | cslot | |- Slot ; 1 8 |
| 5 | 0 4 | wceq | |- .ef = Slot ; 1 8 |