Question

Suppose that the domain A of P(x) is the finite set {1, 2, 3, 4}. Write out the following proposition using disjunctions, conjunctions, and negations.

¬((∀x ∈A)P(x))

Answer 1

$\lnot$ ( P(1)$\land$ P(2)$\land$ P(3)$\land$ P(4) )