Sat, 15 Jun 2013 21:01:07 +0200 wenzelm updated operations on proof terms;
Sat, 15 Jun 2013 16:55:49 +0200 wenzelm more on proof terms;
Thu, 13 Jun 2013 17:40:58 +0200 wenzelm updated documentation of sort hypotheses;
Fri, 21 Jun 2013 16:21:33 -0700 kleing Explain to beginners why Complex_Main
Fri, 21 Jun 2013 16:20:47 +0200 nipkow more set theory
Fri, 21 Jun 2013 12:41:08 +0200 hoelzl Code_Real_Approx_By_Float: remove code equations using Ratreal
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