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Single Idea 9726

[filed under theme 4. Formal Logic / D. Modal Logic ML / 2. Tools of Modal Logic / a. Symbols of ML ]

Full Idea

We let 'R' be the accessibility relation: xRy is read 'y is accessible from x'.

Clarification

The R is usually in a script font

Gist of Idea

We let 'R' be the accessibility relation: xRy is read 'y is accessible from x'

Source

M Fitting/R Mendelsohn (First-Order Modal Logic [1998], 1.5)

Book Ref

Fitting,M/Mendelsohn,R: 'First-Order Modal Logic' [Synthese 1998], p.9