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Definition df-cco 16178
Description: Define the composition operation of a category. (Contributed by Mario Carneiro, 2-Jan-2017.)
Assertion
Ref Expression
df-cco comp = Slot 15

Detailed syntax breakdown of Definition df-cco
StepHypRef Expression
1 cco 16165 . 2 class comp
2 c1 10222 . . . 4 class 1
3 c5 11359 . . . 4 class 5
42, 3cdc 11759 . . 3 class 15
54cslot 16067 . 2 class Slot 15
61, 5wceq 1637 1 wff comp = Slot 15
Colors of variables: wff setvar class
This definition is referenced by:  ccondx  16281  ccoid  16282  ressco  16284  catcoppccl  16962  catcfuccl  16963  catcxpccl  17052
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