src/HOL/Algebra/SndIsomorphismGrp.thy
Wed, 13 Nov 2024 20:10:34 +0100 wenzelm tuned proofs;
Mon, 27 Feb 2023 17:09:59 +0000 paulson Importation of basic group theory results, due to Jakob von Raumer from his AFP entry Jordan-Hölder Theorem
less more (0) tip