Tue, 20 May 1997 11:41:01 +0200 paulson Some theorems moved to HOL/Arith.ML
Tue, 20 May 1997 11:40:28 +0200 paulson Relation "less_than" internalizes "<" for easy use of TFL
Tue, 20 May 1997 11:39:32 +0200 paulson New pattern-matching definition of pred_nat
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