view tests/pprint.ur @ 2120:e3a79066380d

Evaluate minus and times in MonoOpt
author Adam Chlipala <adam@chlipala.net>
date Mon, 16 Feb 2015 14:52:56 -0500
parents 318ba997a149
children
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line source
fun isNone [a] (x : option a) =
    case x of
        None => True
      | Some _ => False