Sat, 10 Sep 2016 14:11:04 +0200 nipkow more simp
Fri, 09 Sep 2016 15:12:40 +0200 nipkow msetsum -> set_mset, msetprod -> prod_mset
Fri, 09 Sep 2016 14:15:16 +0200 nipkow More on balancing; renamed theory to Balance
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