Deontological Square, Hexagon, and Decagon: A Deontic Framework for Supererogation (2012), p. 208
by Joerden, Jan C.
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Caption
- The relations between deontic and alethic modalities (second version)
Legend
- Aristotelian family
- Sigma-6 Graph
- Boolean complexity
- 5
- Number of labels per vertex (at most)
- 1
- Errors in the diagram
- No
- Shape
- Hexagon (regular)
- Colinearity range
- 0
- Coplanarity range
- 6
- Cospatiality range
- 0
- Representation of contradiction
- By central symmetry
Logic
Geometry
- Conceptual info
- No
- Mnemonic support (AEIO, purpurea ...)
- No
- Form
- none
- Label type
- symbolic
- Symbolic field
- logic
- Contains partial formulas or symbols
- Yes
- Logical system
- deontic logic ,
- modal logic
- Contains definitions of relations
- No
- Form
- dotted lines ,
- 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
Vertex description
Edge description
- Diagram is colored
- No
- Diagram is embellished
- No
Style
Additional notes
- The innermost hexagon consists of the alethic modalities; N = $\Box p$, Im = $\Box\neg p$, C = $\Diamond p\wedge\Diamond\neg p$.
The outermost hexagon consists of the deontic modalities; O = $O p$, F = $O\neg p$, I = $P p\wedge P\neg p$.
This diagram induces the following 5-partition:
1) N ($\Box p$)
2) O $\wedge$ C = O $\wedge$ $\neg$N ($Op \wedge \Diamond\neg p$)
3) I ($Pp \wedge P\neg p$)
4) F $\wedge$ C = F $\wedge$ $\neg$Im ($O\neg p \wedge \Diamond p$)
5) Im ($\Box \neg p$)