The lattices of fuzzy subgroups and fuzzy normal subgroups
Information Sciences—Informatics and Computer Science: An International Journal
A complete study of the lattices of fuzzy congruences and fuzzy normal subgroups
Information Sciences—Intelligent Systems: An International Journal
The lattice of fuzzy normal subgroups is modular
Information Sciences—Intelligent Systems: An International Journal
A metatheorem for deriving fuzzy theorems from crisp versions
Fuzzy Sets and Systems
The lattices of fuzzy ideals of a ring
Fuzzy Sets and Systems
Fuzzy groups with sup property
Information Sciences: an International Journal
Embedding lattices of fuzzy subalgebras into lattices of crisp subalgebras
Information Sciences—Informatics and Computer Science: An International Journal
On the lattice of fuzzy ideals of a ring
Fuzzy Sets and Systems
Tom Head's join structure of fuzzy subgroups
Fuzzy Sets and Systems
The lattice of fuzzy (left, right) ideals of a ring is modular
Fuzzy Sets and Systems
Completion of ordered structures by cuts of fuzzy sets: an overview
Fuzzy Sets and Systems - Logic and algebra
General form of lattice-valued fuzzy sets under the cutworthy approach
Fuzzy Sets and Systems
On existence of P-valued fuzzy sets with a given collection of cuts
Fuzzy Sets and Systems
Fuzzy Sets and Systems
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In this paper, we extend the notion of a tip-extended pair of fuzzy subgroups to L-ideals of a ring. We prove that the sum of two tip-extended L-ideals of an arbitrary pair of L-ideals of a ring is the least L-ideal containing the union of the given L-ideals. Using this construction of join of L-ideals, we prove that the lattice of all L-ideals of a given ring is modular.