Wed, 14 May 1997 11:52:42 +0200 wenzelm tuned comments;
Tue, 13 May 1997 15:02:19 +0200 oheimb corrected problem with type abbreviations in pcpo_type
Tue, 13 May 1997 13:02:34 +0200 wenzelm of_sort: type_sig -> typ * sort -> bool;
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