Thu, 03 Feb 1994 13:55:42 +0100 wenzelm replaced pprint_sg by Sign.pprint_sg;
Thu, 03 Feb 1994 13:55:20 +0100 wenzelm replaced eq_sg by Sign.eq_sg;
Thu, 03 Feb 1994 13:55:03 +0100 wenzelm removed eq_sg, pprint_sg, print_sg (now in sign.ML);
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