TURKISH JOURNAL OF MATHEMATICS, vol.46, no.7, pp.2902-2915, 2022 (SCI-Expanded)
In this work, we obtain how to construct finite limits and colimits for 2-crossed R-Modules over groups denoted with X(2)Mod/R. We give direct construction of the pullback object to show that this category has finite products over the terminal object. We also show finite coproducts and (co)completeness.