| changeset 15131 | c69542757a4d |
| parent 14706 | 71590b7733b7 |
| child 15140 | 322485b816ac |
--- a/src/HOL/Library/NatPair.thy Mon Aug 16 14:21:54 2004 +0200 +++ b/src/HOL/Library/NatPair.thy Mon Aug 16 14:22:27 2004 +0200 @@ -6,7 +6,9 @@ header {* Pairs of Natural Numbers *} -theory NatPair = Main: +theory NatPair +import Main +begin text{* An injective function from @{text "\<nat>\<twosuperior>"} to @{text