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view tests/pprint.ur @ 2193:1d6e7e3405f6

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New release
author Adam Chlipala <adam@chlipala.net>
date Sun, 22 Nov 2015 10:09:16 -0500
parents 318ba997a149
children
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line source
fun isNone [a] (x : option a) =
    case x of
        None => True
      | Some _ => False