| changeset 41413 | 64cd30d6b0b8 |
| parent 39302 | d7728f65b353 |
--- a/src/HOL/ex/Landau.thy Wed Dec 29 13:51:17 2010 +0100 +++ b/src/HOL/ex/Landau.thy Wed Dec 29 17:34:41 2010 +0100 @@ -4,7 +4,7 @@ header {* Comparing growth of functions on natural numbers by a preorder relation *} theory Landau -imports Main Preorder +imports Main "~~/src/HOL/Library/Preorder" begin text {*