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The Lattice of Interval-valued fuzzy ideals of a ring
( Keon Ghang Lee ),( Kul Hur ),( Pyung Ki Lim ) 호남수학회 2012 호남수학학술지 Vol.34 No.3
We investigate the lattice structure of various sublattices of the lattice of interval-valued fuzzy subrings of a given ring. We prove that a special class of interval-valued fuzzy ideals of a ring. Finally, we show that the lattice of interval-valued fuzzy ideals of R is not complemented [resp. has no atoms (dual atoms)].