Privations, Negations and the Square: Basic Elements of a Logic of Privations (2012), p. 234
by Gerogiorgakis, Stamatios

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Caption

An hexagon with three different kinds of negation

Logic

Aristotelian family

Sherwood-Czeżowski Sigma-3

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

Geometry

Shape

Hexagon (regular)

Colinearity range

0

Coplanarity range

0

Cospatiality range

0

Representation of contradiction

By central symmetry

Vertex description

Conceptual info

No

Mnemonic support (AEIO, purpurea ...)

No

Form

none

Label type

linguistic

Language

English

Lexical field

negation

Contains partial sentences or single words

No

Contains abbreviations

No

Edge description

Style

Diagram is colored

No

Diagram is embellished

No