Mon, 24 Jan 2005 16:25:36 +0100 paulson updated description of arith_tac
Mon, 24 Jan 2005 12:41:06 +0100 paulson thin_tac now works on P==>Q
Mon, 24 Jan 2005 12:40:52 +0100 paulson some rationalizing of res_inst_tac
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