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Definition df-ple 13228
Description: Define less-than-or-equal ordering extractor for posets and related structures. We use  10 for the index to avoid conflict with  1 through  9 used for other purposes. (Contributed by NM, 4-Sep-2011.) (Revised by Mario Carneiro, 14-Aug-2015.)
Assertion
Ref Expression
df-ple  |-  le  = Slot  10

Detailed syntax breakdown of Definition df-ple
StepHypRef Expression
1 cple 13215 . 2  class  le
2 c10 9803 . . 3  class  10
32cslot 13147 . 2  class Slot  10
41, 3wceq 1623 1  wff  le  = Slot  10
Colors of variables: wff set class
This definition is referenced by:  plendx  13300  pleid  13301  ressle  13306  0pos  14088  isposix  14091
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