Title of article :
On rough set and fuzzy sublattice
Author/Authors :
Ali Akbar Estaji، نويسنده , , Somayeh Khodaii، نويسنده , , Solmaz Bahrami، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2011
Abstract :
Let L be a lattice with the least element 0 and the greatest element 1 and let θ be a full congruence relation on L. In this paper, the notion of θ-upper and θ-lower approximations of a fuzzy subset of L is introduced and some important properties will be studied.
Keywords :
Upper and lower approximations , lattice , Fuzzy sublattice , Fuzzy prime ideal , Rough set
Journal title :
Information Sciences
Journal title :
Information Sciences
