Yao’s generalized rough approximations in left almost semigroups

In this paper, we shall introduce the notion of generalized rough left [right, two-sided, bi-, interior, quasi and prime] ideals in left almost semigroups, which is an extended notion of a left [right, two-sided, bi-, interior, quasi and prime] ideals in left almost semigroups. 2010 AMS Classification: 20M10, 20M12