MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  df-cco Structured version   Visualization version   GIF version

Definition df-cco 17258
Description: Define the composition operation of a category. (Contributed by Mario Carneiro, 2-Jan-2017.) Use its index-independent form ccoid 17395 instead. (New usage is discouraged.)
Assertion
Ref Expression
df-cco comp = Slot 15

Detailed syntax breakdown of Definition df-cco
StepHypRef Expression
1 cco 17245 . 2 class comp
2 c1 11140 . . . 4 class 1
3 c5 12301 . . . 4 class 5
42, 3cdc 12708 . . 3 class 15
54cslot 17150 . 2 class Slot 15
61, 5wceq 1534 1 wff comp = Slot 15
Colors of variables: wff setvar class
This definition is referenced by:  ccondx  17394  ccoid  17395  catcoppcclOLD  18107  catcfucclOLD  18109  catcxpcclOLD  18199
  Copyright terms: Public domain W3C validator