Task 2
Задача
Two segments are given on the number line: P = [25, 37] and Q = [32, 47]. The segment A is such that the formula
( (x ∈ A) /\ ¬(x ∈ P)) &rarr ; ( (x ∈ P) /\ (x ∈ Q))
is identically true, that is, it takes the value 1 for any value of the variable
x. What is the longest possible length of segment A?
Выберите правильный ответ, либо введите его в поле ввода
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