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view tests/pprint.ur @ 2102:0bd46c9e363f

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author Adam Chlipala <adam@chlipala.net>
date Sat, 03 Jan 2015 10:28:36 -0500
parents 318ba997a149
children
line wrap: on
line source
fun isNone [a] (x : option a) =
    case x of
        None => True
      | Some _ => False