Thu, 19 May 1994 16:17:46 +0200 wenzelm added print_sign, print_axioms: theory -> unit;
Thu, 19 May 1994 16:16:36 +0200 wenzelm support for new style mixfix annotations;
Thu, 19 May 1994 16:15:38 +0200 wenzelm added incremental extension functions: extend_log_types, extend_type_gram,
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