Full Idea
A 'value-assignment' (V) is when to each variable in the set V assigns either the value 1 or the value 0.
Gist of Idea
A 'value-assignment' (V) is when to each variable in the set V assigns either the value 1 or the value 0
Source
GE Hughes/M Cresswell (An Introduction to Modal Logic [1968], Ch.1)
Book Reference
Hughes,G./Cresswell,M.: 'An Introduction to Modal Logic' [Methuen 1972], p.10
A Reaction
In the interpreted version of the logic, 1 and 0 would become T (true) and F (false). The procedure seems to be called nowadays a 'valuation'.