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Definition df-cco 16452
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 16439 . 2 class comp
2 c1 10342 . . . 4 class 1
3 c5 11504 . . . 4 class 5
42, 3cdc 11917 . . 3 class 15
54cslot 16344 . 2 class Slot 15
61, 5wceq 1508 1 wff comp = Slot 15
Colors of variables: wff setvar class
This definition is referenced by:  ccondx  16551  ccoid  16552  ressco  16554  catcoppccl  17238  catcfuccl  17239  catcxpccl  17327
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