Lattice for nested rough approximation
Sankar Kumar Roy, Dipankar Rana · Journal of Discrete Mathematical Sciences and Cryptography · 2017
This paper deals with the successive rough approximation to lattice theory. The nested sequence of equivalence relations in rough approximation produces a multi-level partitions of the universe which partition the universe into different nested granules. Based on the hierarchy of the granules in the different level of stratified rough set approximation, they form a bounded lattice. Some important results are investigated to illustrate the paper.