fact: Definition cyclic' `{Funext} (n : nat) `{IsEmbedding (Z1_mul_nat n)} : AbGroup := ab_cokernel_embedding (Z1_mul_nat n).
imports: Basics Types WildCat HSet Pointed.Core Pointed.pTrunc Pointed.pEquiv Modalities.ReflectiveSubuniverse Truncations.Core Truncations.SeparatedTrunc AbGroups Homotopy.ExactSequence AbSES.Core AbSES.Pullback AbSES.Pushout BaerSum Ext PullbackFiberSequence