Logik und Metaphysik. Erster Theil. Erkenntnisslehre, Geschichte der Logik, System der Logik (1868), p. 388
by Rabus, Leonhard

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Logic

Aristotelian family

Classical Sigma-2

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

Rectangle (irregular)

Colinearity range

0

Coplanarity range

0

Cospatiality range

0

Representation of contradiction

By some other geometric feature

Vertex description

Conceptual info

No

Mnemonic support (AEIO, purpurea ...)

No

Form

none

Label type

linguistic

Language

Latin

Lexical field

syllogistics

Contains partial sentences or single words

No

Contains abbreviations

No

Edge description

Style

Diagram is colored

No

Diagram is embellished

No

Additional notes

The contradiction relations are on the horizontal edges of this diagram, rather than on its diagonals.