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Abstract type for evalExp state; handle WHERE conditions soundly
author Adam Chlipala <adamc@hcoop.net>
date Sat, 10 Apr 2010 10:24:13 -0400
parents 4d519baf357c
children
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datatype list t = Nil | Cons of t * list t

val length : t ::: Type -> list t -> int

val rev : t ::: Type -> list t -> list t