After the introduction of fuzzy sets by Zadeh in 1965, there have been a number of generalizations of this fundamental concept. Nowadays, fuzzy set theory has been already applied to many research fields. This special issue is focusing on fuzzy logical algebras and its applications, such as algebraic structures for fuzzy logic, fuzzification of algebraic structures for classical (crisp) logic, states of logical algebras, and roughness, soft set, and soft computing in logical algebras. Up to now, they have been applied to many areas, such as control, information sciences, intelligent, and fuzzy systems.

This special issue aims to promote the exchange of ideas between researchers and spread new trends in this area. It will focus on all aspects of FLAA, from their foundations to applications in mathematics, computational analyses, computer sciences, and information sciences.

We invite researchers to submit their original research articles as well as review articles that will be representative of the state of the art in the field. Potential topics include, but are not limited to:

• Algebraic structures for fuzzy logic
• Fuzzification of algebraic structures for classical (crisp) logic
• Fuzzy logical algebras (BL-algebras, R0-algebras, MTL-algebras, etc.)
• States of logical algebras
• Fuzzy logical algebras and their algorithms
• Roughness in fuzzy logical algebras
• Fuzziness and probabilities in fuzzy logical algebras
• Fuzziness and statistics in fuzzy logical algebras
• Fuzzy soft sets in fuzzy logical algebras
• Soft computing in logical algebras
• Fuzzy algebras (groups, rings, modules, fields, etc.) related to logic

Before submission authors should carefully read over the journal’s Author Guidelines, which are located at http://www.hindawi.com/journals/tswj/guidelines/. Authors should submit an electronic copy of their complete manuscript through the journal Manuscript Tracking System at http://mts.hindawi.com/submit/journals/tswj/mathematical.logic/flaa/ according to the following timetable: