 Both \(Cv^1\) and \(Cv^2\) reach a maximum when \(P(A)\) is maximal and \(A\) is true, or \(P(A)\) is minimal and \(A\) is false; and a minimum when \(P(A)\) is maximal and \(A\) is false, or \(P(A)\) is minimal and \(A\) is true.