The Modal Logic of John Fabri of Valenciennes (c. 1500). A Study in Token-Based Semantics (2022), p. 81
by Geudens, Christophe; Demey, Lorenz
Copyright according to our policy
Caption
- Fabri’s modal octagon as it occurs on $\textbf{S}$, f. 223$^v$
- Aristotelian family
- Buridan Sigma-4
- Boolean complexity
- 6
- Number of labels per vertex (at most)
- 9
- 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
- No
- Shape
- Rectangle (irregular)
- Colinearity range
- 0–2
- Coplanarity range
- 0
- Cospatiality range
- 0
- Representation of contradiction
- By central symmetry
Logic
Geometry
- Conceptual info
- No
- Mnemonic support (AEIO, purpurea ...)
- No
- Form
- square ,
- circular
- Label type
- linguistic
- Language
- Latin
- Lexical field
- modal syllogistics
- Contains partial sentences or single words
- No
- Contains abbreviations
- Yes
- Contains definitions of relations
- No
- Form
- bands
- Has arrowheads
- No
- Overlap
- Yes
- Curved
- Yes
- Hooked
- Yes
- As wide as vertices
- No
- Contains text
- Yes
- Label type
- linguistic
- Language
- Latin
- Contains partial sentences or single words
- Yes
- Contain abbreviations
- Yes
Vertex description
Edge description
- Diagram is colored
- Yes
- Diagram is embellished
- Yes
- Tags
- Leuven
