English

Real coextensions as a tool for constructing triangular norms

Logic 2018-08-31 v1

Abstract

We present in this paper a universal method of constructing left-continuous triangular norms (l.-c. t-norms). The starting point is an arbitrary, possibly finite, totally ordered monoid fulfilling the conditions that are characteristic for l.-c. t-norms: commutativity, negativity, and quanticity. We show that, under suitable conditions, we can extend this structure by substituting each element for a real interval. The process can be iterated and if the final structure obtained in this way is order-isomorphic to a closed real interval, its monoidal operation can, up to isomorphism, be identified with a l.-c. t-norm. We specify the constituents needed for the construction in an explicit way. We furthermore illustrate the method on the basis of a number of examples.

Keywords

Cite

@article{arxiv.1808.10324,
  title  = {Real coextensions as a tool for constructing triangular norms},
  author = {Thomas Vetterlein},
  journal= {arXiv preprint arXiv:1808.10324},
  year   = {2018}
}
R2 v1 2026-06-23T03:49:17.732Z