Wed, 15 Apr 2009 13:11:08 +0000 Christian Urban replaced "warning" with "writeln"
Mon, 13 Apr 2009 08:30:48 +0000 Christian Urban added something about TRY and TRYALL
Sat, 11 Apr 2009 19:23:58 +0000 Christian Urban very slight polishing to the simple inductive chapter
Thu, 09 Apr 2009 18:11:35 +0000 Christian Urban some polishing
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