Oppositions in Rough Set Theory (2012), p. 509
by Ciucci, Davide; Dubois, Didier; Prade, Henri

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Caption

Square induced by the 4 relations

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

Rectangle (irregular)

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

symbolic

Symbolic field

mathematics

Contains partial formulas or symbols

No

Mathematical branch

rough set theory

Edge description

Style

Diagram is colored

No

Diagram is embellished

No