Web-geometric view on positively cancellative triangular subnorms
Milan Petrík · ASEP · 2014
We study the structure of the positively cancellative triangular subnorms and we discuss for which pairs of rectangles the Reidemeister closure condition must be satisfied. This gives constraints on the level sets of these operations. Moreover, as it will be shown, in the continuous case this approach yields an interesting structural characterization.