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| Mirrors > Home > MPE Home > Th. List > df-ocomp | Structured version Visualization version GIF version | ||
| Description: Define the orthocomplementation extractor for posets and related structures. (Contributed by NM, 4-Sep-2011.) (Revised by Mario Carneiro, 14-Aug-2015.) Use its index-independent form ocid 17426 instead. (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| df-ocomp | ⊢ oc = Slot ;11 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | coc 17305 | . 2 class oc | |
| 2 | c1 11156 | . . . 4 class 1 | |
| 3 | 2, 2 | cdc 12733 | . . 3 class ;11 |
| 4 | 3 | cslot 17218 | . 2 class Slot ;11 |
| 5 | 1, 4 | wceq 1540 | 1 wff oc = Slot ;11 |
| Colors of variables: wff setvar class |
| This definition is referenced by: ocndx 17425 ocid 17426 |
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