| changeset 28661 | a287d0e8aa9d |
| parent 28562 | 4e74209f113e |
| child 28724 | 4656aacba2bc |
--- a/src/HOL/Int.thy Wed Oct 22 14:15:42 2008 +0200 +++ b/src/HOL/Int.thy Wed Oct 22 14:15:43 2008 +0200 @@ -21,9 +21,7 @@ subsection {* The equivalence relation underlying the integers *} -definition - intrel :: "((nat \<times> nat) \<times> (nat \<times> nat)) set" -where +definition intrel :: "((nat \<times> nat) \<times> (nat \<times> nat)) set" where [code del]: "intrel = {((x, y), (u, v)) | x y u v. x + v = u +y }" typedef (Integ)