oheimb [Thu, 15 Feb 2001 16:01:47 +0100] rev 11142
moved inv_image to Relation
nonempty_has_least of Nat.ML -> ex_has_least_nat of Wellfounded_Relations.ML
added wf_linord_ex_has_least,LeastM_nat_lemma,LeastM_natI,LeastM_nat_le
oheimb [Thu, 15 Feb 2001 16:01:34 +0100] rev 11141
supressed some warnings on identical proofstate
moved wellorder_LeastI,wellorder_Least_le,wellorder_not_less_Least
from Nat.ML to Wellfounded_Recursion.ML
added wellorder axclass
oheimb [Thu, 15 Feb 2001 16:01:22 +0100] rev 11140
Ord.thy/.ML converted to Isar
added min_of_mono, max_of_mono, max_leastL, max_leastR to Ord.thy
moved Least_equality from Nat.ML to Ord.thy
added LeastM operator