A short way to directed Jónsson terms

Abstract

We show that a variety with Jónsson terms $t_1,\dots ,t_{n-1}$ has directed Jónsson terms $d_1,\dots ,d_{n-1}$, for the same value of the indices, solving a problem raised by Kazda et al.. Refined results are obtained for locally finite varieties.

v2, added an example and a few comments