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Leonardi.DB
a logical geometry project

The Structure of Oppositions in Rough Set Theory and Formal Concept Analysis - Toward a New Bridge between the Two Settings (2014), p. 167
by Ciucci, Davide; Dubois, Didier; Prade, Henri

Caption

Cube of oppositions in formal concept analysis

Logic

Aristotelian family
Keynes-Johnson Sigma-4
Boolean complexity
7
Number of labels per vertex (at most)
2
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
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 ...)
Yes
Form
none
Label type
symbolic
Symbolic field
mathematics
,
logic
Contains partial formulas or symbols
Yes
Logical system
syllogistics
Mathematical branch
formal concept analysis

Edge description

Style

Diagram is colored
No
Diagram is embellished
No
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