Fri, 27 Jan 1995 12:28:05 +0100 clasohm moved ambiguity_level to Syntax/syntax.ML
Thu, 26 Jan 1995 13:31:36 +0100 clasohm added documentation of Sign.ambiguity_level
Thu, 26 Jan 1995 12:44:50 +0100 clasohm added reference variable ambiguity_level to control ambiguity warnings
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