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Leonardi.DB
a logical geometry project

Generalization and Composition of Modal Squares of Oppositions (2016), p. 314
by Pizzi, Claudio

Copyright according to our policy

Caption

A <i>subAristotelian</i> square depending on a formula not belonging to the background system

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
logic
Contains partial formulas or symbols
No
Logical system
modal logic

Edge description

Style

Diagram is colored
No
Diagram is embellished
No
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