Tue, 23 May 2000 18:22:19 +0200 paulson new type class "zero" so that 0 can be overloaded
Tue, 23 May 2000 18:21:51 +0200 paulson finally sum_below is overloaded properly
Tue, 23 May 2000 18:19:06 +0200 paulson Multisets have a zero: the empty multiset
Tue, 23 May 2000 18:14:57 +0200 paulson defining 0::int to be (int 0)
Tue, 23 May 2000 18:08:52 +0200 paulson Now that 0 is overloaded, constant "zero" and its type class "zero" are
Tue, 23 May 2000 18:06:22 +0200 paulson added type constraint ::nat because 0 is now overloaded
Tue, 23 May 2000 12:44:03 +0200 paulson theory file NatSum.thy no longer needed
(0) -3000 -1000 -300 -100 -30 -10 -7 +7 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip