2007-08-02 ballarin 2007-08-02 Experimental removal of assumptions of the form x : UNIV and the like after interpretation.
2007-07-24 ballarin 2007-07-24 Interpretation of rings (as integers) maps defined operations to defined operations..
2007-01-12 ballarin 2007-01-12 Reverted to structure representation with records.
2006-12-22 ballarin 2006-12-22 Experimenting with interpretations of "definition".
2006-10-16 ballarin 2006-10-16 Order and lattice structures no longer based on records.
2006-08-03 ballarin 2006-08-03 Restructured algebra library, added ideals and quotient rings.