 One way to specify probabilities is with propositional complements: the probability that it will rain tomorrow, or that this coin will come up heads 10 times in a row. Take claims such as “\(\rP(B) = 0.6\)”, where the proposition that \(B\) is, e.g., that this (biased) coin will come up heads 10 times in a row. \(\rP\) will be hyperintensional if we cannot guarantee that we preserve truth value by substitution of necessarily equivalent propositions.