International Journal of Neutrosophic Science IJNS 2690-6805 2692-6148 10.54216/IJNS https://www.americaspg.com/journals/show/918 2020 2020 Ministry of Education Open Educational College, Department of Mathematics, Babylon, Iraq Ahmed B. AL AL-Nafee Laboratory of Information Processing, Faculty of Science Ben M’Sik, University Hassan II, B.P 7955, Morocco. Said Broumi Department of Mathematics, University of Babylon, Iraq, pure.leal.abd@uobabylon.edu.iq Luay A. Al Al-Swidi The main purpose of this manuscript is to expand the notion of neutrosophic crisp set (NCS) by presenting the notion of n-valued refined neutrosophic crisp set with some illustration examples. We also establish some of its set-theoretical operations. 2021 2021 87 95 10.54216/IJNS.170201 https://www.americaspg.com/articleinfo/21/show/918