%0 Journal Article %T A new branch of the logical algebra: UP-algebras %J Journal of Algebra and Related Topics %I University of Guilan %Z 2345-3931 %A Iampan, A. %D 2017 %\ 06/01/2017 %V 5 %N 1 %P 35-54 %! A new branch of the logical algebra: UP-algebras %K UP-algebra %K UP-ideal %K congruence %K UP-homomorphism %R 10.22124/jart.2017.2403 %X In this paper, we introduce a new algebraic structure, called a UP-algebra (UP means the University of Phayao) and a concept of UP-ideals, UP-subalgebras, congruences and UP-homomorphisms in UP-algebras, and investigated some related properties of them. We also describe connections between UP-ideals, UP-subalgebras, congruences and UP-homomorphisms, and show that the notion of UP-algebras is a generalization of KU-algebras. %U https://jart.guilan.ac.ir/article_2403_1c3ccde59fb8f4d45495220124df4b3a.pdf