RT Journal Article T1 Simplifying Implications with Positive and Negative Attributes: A Logic-Based Approach A1 Pérez-Gámez, Francisco A1 Ojeda-Aciego, Manuel A1 López-Rodríguez, Domingo A1 Cordero-Ortega, Pablo A1 Mora-Bonilla, Ángel K1 Conceptos AB Concepts and implications are two facets of the knowledge contained within a binary relation between objects and attributes. Simplification logic (SL) has proved to be valuable for the study of attribute implications in a concept lattice, a topic of interest in the more general framework of formal concept analysis (FCA). Specifically, SL has become the kernel of automated methods to remove redundancy or obtain different types of bases of implications. Although originally FCA used only the positive information contained in the dataset, negative information (explicitly stating that an attribute does not hold) has been proposed by several authors, but without an adequate set of equivalence-preserving rules for simplification. In this work, we propose a mixed simplification logic and a method to automatically remove redundancy in implications, which will serve as a foundational standpoint for the automated reasoning methods for this extended framework. PB MDPI YR 2022 FD 2022-02-16 LK https://hdl.handle.net/10630/40167 UL https://hdl.handle.net/10630/40167 LA eng NO F. Pérez-Gámez, D. López-Rodríguez, P. Cordero, Á. Mora, and M. Ojeda-Aciego. Simplifying implications with positive and negative attributes: a logic-based approach. Mathematics, 10(4), 2022 DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 ene 2026