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| Mirrors > Home > MPE Home > Th. List > df-cco | Structured version Visualization version GIF version | ||
| Description: Define the composition operation of a category. (Contributed by Mario Carneiro, 2-Jan-2017.) Use its index-independent form ccoid 17458 instead. (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| df-cco | ⊢ comp = Slot ;15 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cco 17309 | . 2 class comp | |
| 2 | c1 11156 | . . . 4 class 1 | |
| 3 | c5 12324 | . . . 4 class 5 | |
| 4 | 2, 3 | cdc 12733 | . . 3 class ;15 |
| 5 | 4 | cslot 17218 | . 2 class Slot ;15 |
| 6 | 1, 5 | wceq 1540 | 1 wff comp = Slot ;15 |
| Colors of variables: wff setvar class |
| This definition is referenced by: ccondx 17457 ccoid 17458 |
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