A characterization of adjunction in a many-valued modal system

Galois connections are pairs of functions, defined over ordered sets, that preserve some particular aspects. They are studied in the context of algebraic structures. As a logic topic, we take the four-valued logic PM4N that contemplates, at least, two modal operators for the notions of necessary an...

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Bibliographic Details
Main Authors: Hércules de Araújo Feitosa, Romulo Albano de Freitas
Format: Article
Language:Portuguese
Published: UNESP 2025-07-01
Series:CQD Revista Eletrônica Paulista de Matemática
Subjects:
Online Access:https://sistemas.fc.unesp.br/ojs/index.php/revistacqd/article/view/489
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