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view tests/eq.ur @ 256:e52243e20858

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'eq' type class
author Adam Chlipala <adamc@hcoop.net>
date Sun, 31 Aug 2008 15:15:41 -0400
parents
children 32f9212583b2
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val b1 = 1 = 1
val b2 = "Good" = "Bad"

fun eq_pair (t1 :: Type) (t2 :: Type) (eq1 : eq t1) (eq2 : eq t2) (x : t1 * t2) (y : t1 * t2) =
        x.1 = y.1