ballarin [Sat, 10 Feb 2001 08:52:41 +0100] rev 11093
Changes to HOL/Algebra:
- Axclasses consolidated (axiom one_not_zero).
- Now uses summation operator setsum; SUM has been removed.
- Priority of infix assoc changed to 50, in accordance to dvd.
ballarin [Sat, 10 Feb 2001 08:48:10 +0100] rev 11091
Updates to HOL/Algebra:
- axclasses consolidated (lemma one_not_zero)
- summation operator SUM removed, now uses setsum
Use of setsum made it necessary to relax sort constraint in its definition
to {zero, plus}.