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Leonardi.DB
a logical geometry project

Scriptum Antonii Andree in arte veteri (1508), fol. 86v
by Andreas, Antonius

Logic

Aristotelian family
Classical Sigma-2
Boolean complexity
3
Number of labels per vertex (at most)
4
Equivalence between (some) labels of the same vertex
Yes
Analogy between (some) labels of the same vertex
No
Uniqueness of the vertices up to logical equivalence
Yes
Errors in the diagram
Yes

Geometry

Shape
Square (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
circular
Label type
linguistic
Language
Latin
Lexical field
modalities
Contains partial sentences or single words
Yes
Contains abbreviations
Yes

Edge description

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

Style

Diagram is colored
No
Diagram is embellished
No
Tags
duality

Additional notes

This diagram is flipped: the contraries are at the bottom of the diagram, while the subcontraries are at the top.

In the upper right vertex, the fourth line should be corrected from "no[n] i[m]po[ssibi]le e[st] esse" to "no[n] i[m]po[ssibi]le e[st] non esse".
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