Tue, 05 Jun 2007 18:36:10 +0200 wenzelm tuned;
Tue, 05 Jun 2007 18:36:09 +0200 wenzelm fixed type int vs. integer;
Tue, 05 Jun 2007 18:36:07 +0200 wenzelm renamed locale ring/semiring to gb_ring/gb_semiring to avoid clash with Ring_and_Field versions;
Tue, 05 Jun 2007 17:16:41 +0200 huffman add new lemmas
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