Thu, 20 Nov 1997 16:24:05 +0100 wenzelm $ISABELLE_HOME/src;
Thu, 20 Nov 1997 15:48:32 +0100 wenzelm improved error msg;
Thu, 20 Nov 1997 15:38:51 +0100 wenzelm removed old note;
Thu, 20 Nov 1997 15:36:09 +0100 wenzelm adapted print methods;
Thu, 20 Nov 1997 15:30:37 +0100 wenzelm improved theorems print method: transfer_sg;
Thu, 20 Nov 1997 15:30:03 +0100 wenzelm init_data: improved print method;
Thu, 20 Nov 1997 15:28:48 +0100 wenzelm removed data.ML (made part of sign.ML);
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