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 ; 1 1

Detailed syntax breakdown

Step Hyp Ref Expression
0 coc
 |-  oc
1 c1
 |-  1
2 1 1 cdc
 |-  ; 1 1
3 2 cslot
 |-  Slot ; 1 1
4 0 3 wceq
 |-  oc = Slot ; 1 1