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Leonardi.DB
a logical geometry project

Perfectibilité de la logique formelle classique (1955), p. 179
by Sesmat, Augustin

Logic

Aristotelian family
Jacoby-Sesmat-Blanché Sigma-3
Boolean complexity
3
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 (regular)
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
mathematics
Contains partial formulas or symbols
Yes
Mathematical branch
order theory

Edge description

Style

Diagram is colored
No
Diagram is embellished
No
Tags
Boolean closed

Additional notes

g stands for a > b,
p stands for a < b,
q stands for a = b. (Cf. p. 176.)
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