Constructing a Hoop Using Rough Filters

Rajab Ali Borzooei; Elham Babaei

doi:10.18778/0138-0680.2022.10

Authors

Rajab Ali Borzooei Shahid Beheshti University, Department of Mathematics, Faculty of Mathematical Sciences, Tehran 1983963113, Iran https://orcid.org/0000-0001-7538-7885
Elham Babaei Shahid Beheshti University, Department of Mathematics, Faculty of Mathematical Sciences, Tehran 1983963113, Iran

DOI:

https://doi.org/10.18778/0138-0680.2022.10

Keywords:

hoop, rough set, rough approximations (lower and upper), rough filter

Abstract

When it comes to making decisions in vague problems, rough is one of the best tools to help analyzers. So based on rough and hoop concepts, two kinds of approximations (Lower and Upper) for filters in hoops are defined, and then some properties of them are investigated by us. We prove that these approximations- lower and upper- are interior and closure operators, respectively. Also after defining a hyper operation in hoops, we show that by using this hyper operation, set of all rough filters is monoid. For more study, we define the implicative operation on the set of all rough filters and prove that this set with implication and intersection is made a hoop.

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