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view tests/pprint.ur @ 2306:a7cc6c29d836

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New release
author Adam Chlipala <adam@chlipala.net>
date Sun, 20 Dec 2015 14:25:46 -0500
parents 318ba997a149
children
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line source
fun isNone [a] (x : option a) =
    case x of
        None => True
      | Some _ => False