ON THE UNIVERSALITY OF THE TRIANGLE SUPERPRODUCT AND THE SQUARE PRODUCT OF RELATIONS

Citation
W. Bandler et Lj. Kohout, ON THE UNIVERSALITY OF THE TRIANGLE SUPERPRODUCT AND THE SQUARE PRODUCT OF RELATIONS, International journal of general systems, 25(4), 1997, pp. 399-403
Citations number
9
Categorie Soggetti
System Science","Computer Science Theory & Methods",Ergonomics
ISSN journal
03081079
Volume
25
Issue
4
Year of publication
1997
Pages
399 - 403
Database
ISI
SICI code
0308-1079(1997)25:4<399:OTUOTT>2.0.ZU;2-2
Abstract
The paper, together with other theorems, presents the proofs of the fo llowing statements. (1) Every preorder is a supertriangle self-inverse product. (2) R square R(-1) if and only if R is an equivalence. The s upertriangle and the square product (square) appearing in the theorems are special relational compositions that were introduced by Bandler a nd Kohout in 1977 and described previously in this journal.