Topology via logic
Interval valued intuitionistic fuzzy sets
Fuzzy Sets and Systems
Abstract and concrete categories
Abstract and concrete categories
Introduction to Grey system theory
The Journal of Grey System
Point-set lattice-theoretic topology
Fuzzy Sets and Systems - Special memorial volume on mathematical aspects of fuzzy set theory
Vague sets are intuitionistic fuzzy sets
Fuzzy Sets and Systems
An introduction to intuitionistic fuzzy topological spaces
Fuzzy Sets and Systems
Intuitionistic fuzzy sets and L-fuzzy sets
Fuzzy Sets and Systems
On the relationship between some extensions of fuzzy set theory
Fuzzy Sets and Systems - Theme: Basic notions
On a class of left-continuous t-norms
Fuzzy Sets and Systems - Mathematics
On intuitionistic gradation of openness
Fuzzy Sets and Systems - Mathematics
Fuzzy Sets and Systems
On Intuitionistic Fuzzy Sets Theory
On Intuitionistic Fuzzy Sets Theory
A survey on fuzzy relational equations, part I: classification and solvability
Fuzzy Optimization and Decision Making
The category of double fuzzy preproximity spaces
Computers & Mathematics with Applications
An Interval-Valued Intuitionistic Fuzzy Rough Set Model
Fundamenta Informaticae
Lattice valued double fuzzy preproximity spaces
Computers & Mathematics with Applications
Ideal-valued topological structures
Fuzzy Sets and Systems
Towards the theory of M-approximate systems: Fundamentals and examples
Fuzzy Sets and Systems
Gradualness, uncertainty and bipolarity: Making sense of fuzzy sets
Fuzzy Sets and Systems
Interweaving algebra and topology: Lattice-valued topological systems
Fuzzy Sets and Systems
Stratified double L-topological structures
Mathematical and Computer Modelling: An International Journal
Mathematical morphology on bipolar fuzzy sets: general algebraic framework
International Journal of Approximate Reasoning
An Interval-Valued Intuitionistic Fuzzy Rough Set Model
Fundamenta Informaticae
Lattice-valued finite state machines and lattice-valued transformation semigroups
Fuzzy Sets and Systems
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This paper demonstrates two meta-mathematical propositions concerning the increasingly popular ''intuitionistic'' (= vague) approaches to fuzzy sets and fuzzy topology, as well as the closely related interval-valued (= grey) sets and interval-valued ''intuitionistic'' sets: (1) the term ''intuitionistic'' in these contexts is historically inappropriate given the standard mathematical usage of ''intuitionistic''; and (2), at every level of existence-powerset level, topological fibre level, categorical level-interval-valued sets, interval-valued ''intuitionistic'' sets, and ''intuitionistic'' fuzzy sets and fuzzy topologies are redundant and represent unnecessarily complicated, strictly special subcases of standard fixed-basis set theory and topology. It therefore follows that theoretical workers should stop working in these restrictive and complicated programs and instead turn their efforts to substantial problems in the simpler and more general fixed-basis and variable-basis set theory and topology, while applied workers should carefully document the need or appropriateness of interval-valued or ''intuitionistic'' notions in applications.