8 lines
178 B
Text
8 lines
178 B
Text
reserve infix `=?=`:50
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reserve infixr `&&&`:25
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notation a `=?=` b := eq a b
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notation a `&&&` b := and a b
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set_option pp.notation false
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#check λ a b : nat, a =?= b &&& b =?= a
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