Further Operations (Complement, Intersection, Union) for IndetermSoft Set, IndetermHyperSoft Set, and TreeSoft Set and their Applications

In this paper, efforts are intensified as much as possible to explicitly and clearly give the definitions as regards the operations involving the complement, intersection as well as the union for IndetermSoft Set, IndetermHyperSoft Set, and Tree Soft Set respectively. All these we believe, to the best of our knowledge, have neither been pronounced nor treated in literatures, and to use them in real applications.