Language and Logics. An Introduction to the Logical Foundations of Language (2015), p. 108
by Gregory, Howard

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Caption

Modality graphs of S4 and S5 - (i) Entailment between the modalities in S4 (from left to right)

Logic

Number of labels per vertex (at most)

1

Errors in the diagram

No

Vertex description

Conceptual info

No

Mnemonic support (AEIO, purpurea ...)

No

Form

none

Label type

symbolic

Edge description

Contains definitions of relations

No

Form

solid lines

,

none

Has arrowheads

Yes

Overlap

No

Curved

No

Hooked

No

As wide as vertices

No

Contains text

No

Label type

none

Style

Diagram is colored

No

Diagram is embellished

No