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Leonardi.DB
a logical geometry project

Evidence and Meaning. Studies in Analytic Philosophy (1967), p. 154
by Fogelin, Robert J.

Logic

Aristotelian family
Sherwood-Czeżowski Sigma-3
Boolean complexity
4
Number of labels per vertex (at most)
1
Uniqueness of the vertices up to logical equivalence
Yes
Errors in the diagram
No

Geometry

Shape
Hexagon (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
linguistic
Language
English
Lexical field
commands
,
adjectives
Contains partial sentences or single words
No
Contains abbreviations
Yes

Edge description

Style

Diagram is colored
No
Diagram is embellished
No
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