Project-declaredLean 4.32.0
Comm Group no compact automorphisms
CommGroup.no_compact_automorphisms
Plain-language statement
A connected compact Hausdorff abelian topological group does not admit a nontrivial compact group of automorphisms.
number theoryarithmetic geometryFermat's Last Theorem
Source project: Fermat's Last Theorem
Person-level attribution pending.