Sun, 11 Nov 2012 20:31:46 +0100 wenzelm tuned;
Sun, 11 Nov 2012 16:19:55 +0100 wenzelm updated section on ordered rewriting;
Sat, 10 Nov 2012 20:16:16 +0100 wenzelm updated subgoaler/solver/looper;
Thu, 08 Nov 2012 20:25:48 +0100 wenzelm removed somewhat pointless historic material;
Thu, 08 Nov 2012 20:20:38 +0100 wenzelm tuned;
Thu, 08 Nov 2012 20:18:34 +0100 wenzelm updated explanation of rewrite rules;
Wed, 07 Nov 2012 21:43:02 +0100 wenzelm (re)moved old material about Simplifier;
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