Definition df-cco 13509

Description: Define the composition operation of a category. (Contributed by Mario Carneiro, 2-Jan-2017.)

Assertion

Ref	Expression
df-cco	|- comp = Slot ; 1 5

Detailed syntax breakdown of Definition df-cco

Step	Hyp	Ref	Expression
1		cco 13496	. 2 class comp
2		c1 8947	. . . 4 class 1
3		c5 10008	. . . 4 class 5
4	2, 3	cdc 10338	. . 3 class ; 1 5
5	4	cslot 13423	. 2 class Slot ; 1 5
6	1, 5	wceq 1649	1 wff comp = Slot ; 1 5

This definition is referenced by:  ccondx  13599  ccoid  13600  ressco  13602  catcoppccl  14218  catcfuccl  14219  catcxpccl  14259