### Sub-exact sequence of rough groups

https://doi.org/10.24042/ajpm.v12i2.8917

Nevi Setyaningsih, Fitriani Fitriani, Ahmad Faisol

#### Abstract

Rough Set Theory (RST) is an essential mathematical tool to deal with imprecise, inconsistent, incomplete information and knowledge Rough Some algebra structures, such as groups, rings, and modules, have been presented on rough set theory. The sub-exact sequence is a generalization of the exact sequence. In this paper, we introduce the notion of a sub-exact sequence of groups. Furthermore, we give some properties of the rough group and rough sub-exact sequence of groups.

#### Keywords

Exact Sequence, Sub-exact Sequence, Group; Rough Set.

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DOI: https://doi.org/10.24042/ajpm.v12i2.8917

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