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Harmonize have/need terminology in error messages; display canceled record summaries on errors
author Adam Chlipala <adam@chlipala.net>
date Thu, 27 Oct 2011 08:36:31 -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