Thu, 18 Jan 2001 20:36:08 +0100 wenzelm tuned \<And> and \<Or>;
Thu, 18 Jan 2001 20:35:39 +0100 wenzelm generate index.html for pdf docs;
Thu, 18 Jan 2001 20:23:51 +0100 oheimb splitted Loop rule
Thu, 18 Jan 2001 18:39:43 +0100 paulson removed redundant proof
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