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Leonardi.DB
a logical geometry project

Louvain Theories of Topical Logic (c. 1450-1533). A Reassessment of the Traditionalist Thesis (2020), p. 99
by Geudens, Christophe

Caption

A modal square of opposition for $\textbf{SCC}$ and $\textbf{SNC}$

Logic

Aristotelian family
Non-Sigma
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
Pentagon (irregular)
Colinearity range
0
Coplanarity range
0
Cospatiality range
0
Representation of contradiction
N.A.

Vertex description

Conceptual info
No
Mnemonic support (AEIO, purpurea ...)
No
Form
none
Label type
symbolic
Symbolic field
logic
Contains partial formulas or symbols
No
Logical system
modal logic

Edge description

Contains definitions of relations
No
Form
solid lines
,
none
,
dashed lines
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
Tags
Leuven

Additional notes

The negation closure of this diagram is a JSB sigma-3.
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