Abstract
We consider the important equivalence between crossed modules and group-groupoids, and show how normality and quotient concepts are related in these two categories.
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Mucuk, O., Şahan, T. & Alemdar, N. Normality and Quotients in Crossed Modules and Group-groupoids. Appl Categor Struct 23, 415–428 (2015). https://doi.org/10.1007/s10485-013-9335-6
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DOI: https://doi.org/10.1007/s10485-013-9335-6