Structures of Opposition and Comparisons: Boolean and Gradual Cases (2020), p. 136
by Dubois, Didier; Prade, Henri; Rico, Agnès

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Caption

Graded cube of opposition in the sense of Reichenbach

Logic

Aristotelian family

Keynes-Johnson Sigma-4

Boolean complexity

7

Number of labels per vertex (at most)

1

Uniqueness of the vertices up to logical equivalence

Yes

Errors in the diagram

No

Geometry

Shape

Cube (regular)

Colinearity range

0

Coplanarity range

0

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

fuzzy logic

Edge description

Style

Diagram is colored

No

Diagram is embellished

No