RT journal article T1 The f-index of inclusion as optimal adjoint pair for fuzzy modus ponens A1 Madrid Labrador, Nicolás Miguel A1 Ojeda Aciego, Manuel A2 Matemáticas K1 Fuzzy logic K1 f-index of inclusion K1 Fuzzy inclusion K1 Inclusion measures K1 Residuated lattice K1 Galois connection AB We continue studying the properties of the f-index of inclusion and show that, given a fixed pair of fuzzy sets, their f-index of inclusion can be linked to a fuzzy conjunction which is part of an adjoint pair. We also show that, when this pair is used as the underlying structure to provide a fuzzy interpretation of the modus ponens inference rule, it provides the maximum possible truth-value in the conclusion among all those values obtained by fuzzy modus ponens using any other possible adjoint pair. PB Elsevier SN 0165-0114 YR 2023 FD 2023-08 LK http://hdl.handle.net/10498/38482 UL http://hdl.handle.net/10498/38482 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 10-may-2026