On the history of higher homotopies in the definition of higher structures (higher algebra/brave new algebra: algebras, -algebras and -algebras):
On the history of Lie algebras, differential crossed modules and Lie-Rinehart algebras:
On crossed modules of groups:
Last revised on September 30, 2025 at 11:46:39. See the history of this page for a list of all contributions to it.