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Leonardi.DB
a logical geometry project

Logical Extensions of Aristotle's Square (2008), p. 175
by Luzeaux, Dominique; Sallantin, Jean; Dartnell, Christopher

Caption

The 6 squares of opposition of the S5 modal logical cube.

Logic

Aristotelian family
Classical Sigma-2
Boolean complexity
3
Number of labels per vertex (at most)
1
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

Additional notes

This is square 6 of 6 (cf. caption).
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