Şahan, TuncarMohammed, Jihad Jamil2019-11-222019-11-2220191301-40482147-835Xhttps://hdl.handle.net/20.500.12451/6987Şahan, Tunçar ( Aksaray, Yazar )In this study, internal categories in the category of crossed modules are characterized and it has been shown that there is a natural equivalence between the category of crossed modules over crossed modules, i.e. crossed squares and the category of internal categories within the category of crossed modules. Finally, we obtain examples of crossed squares using this equivalence....eninfo:eu-repo/semantics/openAccessCrossed ModuleInternal CategoryCrossed SquareArticle234519531