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Leonardi.DB
a logical geometry project

Von deontischen Quadraten - Kuben - Hyperkuben (2012), p. 77
by Philipps, Lothar

Caption

Deontischer Kubus 2

Logic

Aristotelian family
Buridan Sigma-4
Boolean complexity
6
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
4
Cospatiality range
0
Representation of contradiction
By central symmetry

Vertex description

Conceptual info
No
Mnemonic support (AEIO, purpurea ...)
No
Form
ellipse
Label type
linguistic
Language
German
Lexical field
deontic operators
Contains partial sentences or single words
Yes
Contains abbreviations
No

Edge description

Style

Diagram is colored
No
Diagram is embellished
No
Tags
composed operator duality

Additional notes

A visual variant of this diagram appears on p. 75 of the same paper (with the caption 'Deontischer Kubus 1').

The formulas in this diagram follow the composed operator duality pattern "deontic operator - quantifier" and thus have 3 negation positions (external, intermediate, internal), yielding 2^3 = 8 formulas.
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