Apuleius and the Square of Opposition (1984), p. 168
by Londey, David; Johanson, Carmen

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Logic

Aristotelian family

Classical Sigma-2

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

Square (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

Latin

Lexical field

categorical

Contains partial sentences or single words

No

Contains abbreviations

No

Edge description

Style

Diagram is colored

No

Diagram is embellished

No