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Leonardi.DB
a logical geometry project

Disentangling Contradiction from Contrariety via Incompatibility (2016), p. 159
by Beziau, Jean-Yves

Caption

Three basic triangles of contrariety

Logic

Aristotelian family
Contrariety 3-clique
Boolean complexity
3
Number of labels per vertex (at most)
1
Uniqueness of the vertices up to logical equivalence
Yes
Errors in the diagram
No

Geometry

Shape
Triangle (regular)
Colinearity range
0
Coplanarity range
0
Cospatiality range
0
Representation of contradiction
N.A.

Vertex description

Conceptual info
No
Mnemonic support (AEIO, purpurea ...)
No
Form
none
Label type
linguistic
Language
English
Lexical field
temporal
Contains partial sentences or single words
Yes
Contains abbreviations
No

Edge description

Style

Diagram is colored
Yes
Diagram is embellished
No

Additional notes

The negation closure of this diagram is a JSB sigma-3.
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