Truth Assignment How we discuss the truth of propositional letters? Definition(Assig gnment A truth assignment A is a function that assigns to each propositional letter A a unique truth value 4(A)∈{T,F}Truth Assignment How we discuss the truth of propositional letters? . Definition (Assignment) . . A truth assignment A is a function that assigns to each propositional letter A a unique truth value A(A) ∈ {T, F}. Yi Li (Fudan University) Discrete Mathematics April 2, 2013 4 / 20