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Definition df-ol 34783
Description: Define the class of ortholattices. Definition from [Kalmbach] p. 16. (Contributed by NM, 18-Sep-2011.)
Assertion
Ref Expression
df-ol OL = (Lat ∩ OP)

Detailed syntax breakdown of Definition df-ol
StepHypRef Expression
1 col 34779 . 2 class OL
2 clat 17092 . . 3 class Lat
3 cops 34777 . . 3 class OP
42, 3cin 3606 . 2 class (Lat ∩ OP)
51, 4wceq 1523 1 wff OL = (Lat ∩ OP)
Colors of variables: wff setvar class
This definition is referenced by:  isolat  34817
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