Metamath Proof Explorer


Definition df-ocomp

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 instead. (New usage is discouraged.)

Ref Expression
Assertion df-ocomp oc = Slot 11

Detailed syntax breakdown

Step Hyp Ref Expression
0 coc class oc
1 c1 class 1
2 1 1 cdc class 11
3 2 cslot class Slot 11
4 0 3 wceq wff oc = Slot 11