Definition df-ds

Description: Define the distance function component of a metric space (structure). (Contributed by NM, 4-Sep-2011) (Revised by Mario Carneiro, 14-Aug-2015)

	Ref	Expression
Assertion	df-ds	|- dist = Slot ; 1 2

Detailed syntax breakdown

Step	Hyp	Ref	Expression
0		cds	|- dist
1		c1	|- 1
2		c2	|- 2
3	1 2	cdc	|- ; 1 2
4	3	cslot	|- Slot ; 1 2
5	0 4	wceq	|- dist = Slot ; 1 2