Haviar, Alfonz

On properties of the free BCI - algebra with one generator / Alfonz Haviar, Pavol Konôpka. -- In this paper we show that the free BCI-algebra with one generator has an infinite number of branches and that every branch (as a poset) has the least and the greatest element and is of infinite length and width. (C) 2016 Mathematical Institute Slovak Academy of Sciences

In Mathematica Slovaca. -- Bratislava : Slovenská akadémia vied, Matematický ústav SAV, 2016. -- ISSN 0139-9918. -- ISSN 1337-2211. -- Vol. 66, no. 4 (2016), pp. 781-794