Logik und Existenz. Eine logistische Analyse der kategorischen Syllogismusfunktoren und das Problem der Nullklasse (1954), p. 108
by Menne, Albert

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Logic

Aristotelian family

Degenerate Sigma-2 with Unconnectedness 4

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

Rectangle (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 ...)

Yes

Label type

symbolic

Symbolic field

logic

Contains partial formulas or symbols

Yes

Logical system

syllogistics

Edge description

Style

Diagram is colored

No

Diagram is embellished

No

Additional notes

On the edges of the diagram, T stands for unconnectedness and $>\!\!\!-\!\!\!-\!\!\!<$ for contradiction.