Objecting to uncertain conditional sentences. A cross-linguistic study (2020), p. 138
by Politzer, Guy; Baratgin, Jean; Hattori, Ikuko; Hattori, Masasi

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Logic

Aristotelian family

Non-Sigma

Boolean complexity

5

Number of labels per vertex (at most)

3

Equivalence between (some) labels of the same vertex

No

Analogy between (some) labels of the same vertex

No

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

N.A.

Vertex description

Conceptual info

Yes

Mnemonic support (AEIO, purpurea ...)

No

Form

none

Label type

linguistic

,

symbolic

,

generic placeholders

Language

English

Lexical field

modalities

Contains partial sentences or single words

Yes

Contains abbreviations

No

Symbolic field

mathematics

Contains partial formulas or symbols

No

Mathematical branch

order theory

Edge description

Style

Diagram is colored

No

Diagram is embellished

No

Additional notes

The negation closure of this diagram involves adding the negations of B and B'. This negation closure is a Lenzen sigma-4. (A more canonical visualization of both this diagram and its negation closure would involve rotating the diagram 90° counterclockwise, so that the subalternations are pointing downwards.)