Definition df-edgf 28923

Description: Define the edge function (indexed edges) of a graph. (Contributed by AV, 18-Jan-2020.) Use its index-independent form edgfid 28924 instead. (New usage is discouraged.)

Assertion

Ref	Expression
df-edgf	⊢ .ef = Slot ;18

Detailed syntax breakdown of Definition df-edgf

Step	Hyp	Ref	Expression
1		cedgf 28922	. 2 class .ef
2		c1 11076	. . . 4 class 1
3		c8 12254	. . . 4 class 8
4	2, 3	cdc 12656	. . 3 class ;18
5	4	cslot 17158	. 2 class Slot ;18
6	1, 5	wceq 1540	1 wff .ef = Slot ;18

This definition is referenced by:  edgfid  28924  edgfndx  28925