fact: Definition amal_mu_H (x y : Words) (h1 h2 : H) : amal_eta (x ++ (cons (inl h1) [inl h2]) ++ y) = amal_eta (x ++ [inl (h1 * h2)] ++ y).
imports: Basics Types Cubical Spaces.List Colimits.Pushout Truncations.Core Truncations.SeparatedTrunc Algebra.Groups.Group WildCat