From Blanché's Hexagonal Organization of Concepts to Formal Concept Analysis and Possibility Theory
- Publication Type:
- Journal Article
- Logica Universalis, 2012, 6 (1-2), pp. 149 - 169
- Issue Date:
The paper first introduces a cube of opposition that associates the traditional square of opposition with the dual square obtained by Piaget's reciprocation. It is then pointed out that Blanché's extension of the square-of-opposition structure into an conceptual hexagonal structure always relies on an abstract tripartition. Considering quadripartitions leads to organize the 16 binary connectives into a regular tetrahedron. Lastly, the cube of opposition, once interpreted in modal terms, is shown to account for a recent generalization of formal concept analysis, where noticeable hexagons are also laid bare. This generalization of formal concept analysis is motivated by a parallel with bipolar possibility theory. The latter, albeit graded, is indeed based on four graded set functions that can be organized in a similar structure. © 2011 Springer Basel AG.
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