(S, N)- and R-implications: A state-of-the-art survey
Fuzzy Sets and Systems
Commutativity and self-duality: Two tales of one equation
International Journal of Approximate Reasoning
A survey of weak connectives and the preservation of their properties by aggregations
Fuzzy Sets and Systems
Fuzzy Sets and Systems
Lattices of fuzzy sets and bipolar fuzzy sets, and mathematical morphology
Information Sciences: an International Journal
On the duality of aggregation operators and k-negations
Fuzzy Sets and Systems
A generalization of the migrativity property of aggregation functions
Information Sciences: an International Journal
A construction method of semicopulas from fuzzy negations
Fuzzy Sets and Systems
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Strict negators and automorphisms are prevalently used to fuzzify the Boolean negation and affirmation. Involutive negators are of particular interest. Every monotone [0,1] → [0,1] bijection is a composition of at most four involutive negators. Involutive negators are geometrically recognized by the symmetry of their graph w.r.t. the first bisector. If the graph of an automorphism has an alternating behavior, we can generate the automorphism by a pair of involutive negators.