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view tests/pprint.ur @ 1987:fa044101ad99

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Closing old datetime branch.
author Patrick Hurst <phurst@mit.edu>
date Mon, 17 Feb 2014 19:25:30 -0500
parents 318ba997a149
children
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fun isNone [a] (x : option a) =
    case x of
        None => True
      | Some _ => False