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Definition df-ple 16822
Description: Define "less than or equal to" 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.) (Revised by AV, 9-Sep-2021.)
Assertion
Ref Expression
df-ple le = Slot 10

Detailed syntax breakdown of Definition df-ple
StepHypRef Expression
1 cple 16809 . 2 class le
2 c1 10730 . . . 4 class 1
3 cc0 10729 . . . 4 class 0
42, 3cdc 12293 . . 3 class 10
54cslot 16734 . 2 class Slot 10
61, 5wceq 1543 1 wff le = Slot 10
Colors of variables: wff setvar class
This definition is referenced by:  plendx  16893  pleid  16894  0posOLD  17829  isposix  17832  oppgle  30958
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