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Leonardi.DB
a logical geometry project

Why the Hexagon of Opposition is Really a Triangle: Logical Structures as Geometric Shapes (2024), p. 123
by Milstein, Ori

Caption

Octahedron associated with the Modal logic K. Notice the quasi-reapearance of modal squares of opposition when one looks straight at a vertex

Logic

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

Vertex description

Conceptual info
No
Mnemonic support (AEIO, purpurea ...)
No
Form
spherical
Label type
symbolic
Symbolic field
logic
Contains partial formulas or symbols
No
Logical system
propositional logic

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

Style

Diagram is colored
No
Diagram is embellished
No
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