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Leonardi.DB
a logical geometry project

The Geometry of Logical Opposition (2009), p. 311
by Moretti, Alessio

Caption

a bi-simplex ($\alpha$-structure) is determined

Logic

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

Geometry

Shape
Decagon (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
dots
Label type
symbolic
Symbolic field
bitstrings
Bitstring length
1

Edge description

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

Style

Diagram is colored
Yes
Diagram is embellished
No
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