2010-08-11 wenzelm 2010-08-11 modernized some specifications;
2010-03-01 haftmann 2010-03-01 replaced a couple of constsdefs by definitions (also some old primrecs by modern ones)
2010-02-05 haftmann 2010-02-05 more consistent naming of type classes involving orderings (and lattices) -- c.f. NEWS
2009-10-29 haftmann 2009-10-29 adjusted to changes in theory Divides
2009-09-02 wenzelm 2009-09-02 reorganized Compute theories for HOL-Matrix -- avoiding theory files within main HOL/Tools;