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view tests/pprint.ur @ 2252:e843a04499d4

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Revert to revision 2222.
author Ziv Scully <ziv@mit.edu>
date Mon, 21 Sep 2015 10:16:55 -0400
parents 318ba997a149
children
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line source
fun isNone [a] (x : option a) =
    case x of
        None => True
      | Some _ => False