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view tests/pprint.ur @ 2171:7187068f56f5

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author Adam Chlipala <adam@chlipala.net>
date Wed, 19 Aug 2015 10:53:18 -0400
parents 318ba997a149
children
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line source
fun isNone [a] (x : option a) =
    case x of
        None => True
      | Some _ => False