The Square of Opposition: Past, Present, and Future (2022), p. 4
by Beziau, Jean-Yves; Vandoulakis, Ioannis M.

Copyright according to our policy

Caption

Brazilian version of Blanché’s book. (Cover by Sergio Kon of the Book by Robert Blanché Estruturas intelectuais: ensaio sobre a organização sistemática dos conceitos. Reproduction courtesy of EDITORA PERSPECTIVA, https:// editoraperspectiva.com.br/ produtos/estruturasintelectuais/)

Logic

Number of labels per vertex (at most)

1

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

Edge description

Contains definitions of relations

No

Form

dotted lines

,

solid lines

Has arrowheads

No

Overlap

No

Curved

No

Hooked

No

As wide as vertices

No

Contains text

No

Label type

none

Style

Diagram is colored

Yes

Diagram is embellished

Yes