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Theorem wdf-le1 378
Description: Define 'less than or equal to' analogue for == analogue of =.
Hypothesis
Ref Expression
wdf-le1.1 ((a v b) == b) = 1
Assertion
Ref Expression
wdf-le1 (a =<2 b) = 1
Proof of Theorem wdf-le1
StepHypRef Expression
1 df-le 129 . 2 (a =<2 b) = ((a v b) == b)
2 wdf-le1.1 . 2 ((a v b) == b) = 1
31, 2ax-r2 36 1 (a =<2 b) = 1
Colors of variables: term
Syntax hints:   = wb 1   == tb 5   v wo 6  1wt 8   =<2 wle2 10
This theorem was proved from axioms:  ax-r2 36
This theorem depends on definitions:  df-le 129
This theorem is referenced by:  wcomlem  382  wdf2le1  385  wlea  388  wle1  389  wleror  393  wbltr  397  wbile  401
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