The New Rising of the Square of Opposition (2012), p. 13
by Beziau, Jean-Yves

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Caption

Linking the stars

Logic

Aristotelian family

Sigma-6 Graph

Boolean complexity

4

Number of labels per vertex (at most)

1

Uniqueness of the vertices up to logical equivalence

No

Errors in the diagram

No

Geometry

Shape

Two Dimensional Shape (irregular)

Colinearity range

0

Coplanarity range

9

Cospatiality range

0

Representation of contradiction

By some other geometric feature

Vertex description

Conceptual info

No

Mnemonic support (AEIO, purpurea ...)

No

Form

none

Label type

symbolic

Symbolic field

logic

Contains partial formulas or symbols

No

Logical system

modal logic

Edge description

Style

Diagram is colored

Yes

Diagram is embellished

No