From Blanché's Hexagonal Organization of Concepts to Formal Concept Analysis and Possibility Theory (2012), p. 156
by Dubois, Didier; Prade, Henri
Copyright according to our policy
Caption
- A tetrahedron induced by a quadripartition ($\textit{A}$, $\textit{B}$, $\textit{C}$, $\textit{D}$)
- Aristotelian family
- Classical Sigma-7
- Boolean complexity
- 4
- Number of labels per vertex (at most)
- 1
- Uniqueness of the vertices up to logical equivalence
- Yes
- Errors in the diagram
- No
- Shape
- Tetrahedron (regular)
- Colinearity range
- 1
- Coplanarity range
- 1
- Cospatiality range
- 0
- Representation of contradiction
- By diametric opposition (but no central symmetry)
Logic
Geometry
- Conceptual info
- No
- Mnemonic support (AEIO, purpurea ...)
- No
- Form
- none
- Label type
- symbolic
- Symbolic field
- mathematics
- Contains partial formulas or symbols
- No
- Mathematical branch
- set theory
- Contains definitions of relations
- No
- Form
- bold solid lines ,
- dotted lines ,
- double solid lines ,
- bold dotted lines ,
- none
- Has arrowheads
- Yes
- Overlap
- No
- Curved
- No
- Hooked
- No
- As wide as vertices
- No
- Contains text
- No
- Label type
- none
Vertex description
Edge description
- Diagram is colored
- No
- Diagram is embellished
- No
- Tags
- Boolean closed