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Leonardi.DB
a logical geometry project

On the Transformations of the Square of Opposition from the Point of View of Institution Model Theory (2022), p. 280
by Kiouvrekis, Yiannis; Stefaneas, Petros; Vandoulakis, Ioannis M.

Caption

Cube of opposition of quantified statements

Logic

Number of labels per vertex (at most)
1
Errors in the diagram
No

Geometry

Shape
Rectangular Cuboid (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

Edge description

Contains definitions of relations
No
Form
solid lines
,
none
Has arrowheads
No
Overlap
No
Curved
No
Hooked
No
As wide as vertices
No
Contains text
No
Label type
none

Style

Diagram is colored
No
Diagram is embellished
No
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