# HG changeset patch # User paulson # Date 1587333512 -3600 # Node ID af1381b565d692d0814ecf3d914ea0bb1638b5fe # Parent 7c0de1eb6075cd2ecf270134886bb2cea776a120 Sketch and explore again diff -r 7c0de1eb6075 -r af1381b565d6 src/HOL/Analysis/Further_Topology.thy --- a/src/HOL/Analysis/Further_Topology.thy Sun Apr 19 22:16:57 2020 +0100 +++ b/src/HOL/Analysis/Further_Topology.thy Sun Apr 19 22:58:32 2020 +0100 @@ -4,7 +4,6 @@ theory Further_Topology imports Weierstrass_Theorems Polytope Complex_Transcendental Equivalence_Lebesgue_Henstock_Integration Retracts -Sketch_and_Explore begin subsection\A map from a sphere to a higher dimensional sphere is nullhomotopic\