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view tests/pprint.ur @ 2087:834b438d57f3

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Move code from last changeset, to improve performance
author Adam Chlipala <adam@chlipala.net>
date Fri, 05 Dec 2014 19:41:27 -0500
parents 318ba997a149
children
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line source
fun isNone [a] (x : option a) =
    case x of
        None => True
      | Some _ => False