Sat, 17 Jun 2006 19:37:53 +0200 wenzelm added singleton;
Sat, 17 Jun 2006 19:37:52 +0200 wenzelm major reworking of export functionality -- based on Term/Thm.generalize;
Sat, 17 Jun 2006 19:37:51 +0200 wenzelm added generalize rule;
Sat, 17 Jun 2006 19:37:50 +0200 wenzelm added exists_subtype;
Sat, 17 Jun 2006 19:37:49 +0200 wenzelm added generalize rule;
Sat, 17 Jun 2006 19:37:48 +0200 wenzelm Term.skolem;
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