changeset 69620 | 19d8a59481db |
parent 69508 | 2a4c8a2a3f8e |
child 69661 | a03a63b81f44 |
--- a/src/HOL/Analysis/Homeomorphism.thy Mon Jan 07 14:06:54 2019 +0100 +++ b/src/HOL/Analysis/Homeomorphism.thy Mon Jan 07 14:57:45 2019 +0100 @@ -5,7 +5,7 @@ section%important \<open>Homeomorphism Theorems\<close> theory Homeomorphism -imports Path_Connected +imports Homotopy begin lemma%unimportant homeomorphic_spheres':