Implementation of Rough Set on A Group Structure
Ananto Adi Nugraha, Fitriani Fitriani, Muslim Ansori, Ahmad Faisol · Jurnal Matematika MANTIK · 2022
Let be a non-empty set and an equivalence relation on . Then, is called an approximation space. The equivalence relation on forms disjoint equivalence classes. If , then we can form a lower approximation and an upper approximation of . If X⊆U, then we can form a lower approximation and an upper approximation of X. In this research, rough group and rough subgroups are constructed in the approximation space for commutative and non-commutative binary operations.