Tue, 23 May 2000 18:28:11 +0200 | paulson | added type constraint ::nat because 0 is now overloaded | changeset | files |
Tue, 23 May 2000 18:24:48 +0200 | paulson | IntRingDefs is now redundant | changeset | files |
Tue, 23 May 2000 18:22:19 +0200 | paulson | new type class "zero" so that 0 can be overloaded | changeset | files |