Thu, 03 Apr 1997 09:46:42 +0200 Removed (Unit) in Prod.
nipkow [Thu, 03 Apr 1997 09:46:42 +0200] rev 2880
Removed (Unit) in Prod. Added test for ancestor Nat in datatype.
Wed, 02 Apr 1997 19:12:26 +0200 misc improvements;
wenzelm [Wed, 02 Apr 1997 19:12:26 +0200] rev 2879
misc improvements;
Wed, 02 Apr 1997 17:28:27 +0200 changed signature of dummy goal from proto_pure to pure;
wenzelm [Wed, 02 Apr 1997 17:28:27 +0200] rev 2878
changed signature of dummy goal from proto_pure to pure;
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