 Like Penbygull, Sharpe considers identity and distinction (or difference) as the two possible inverse measures of the coincidence of the metaphysical components of two given entities (QsU., p. 92). Moreover, he speaks of formal and real (or essential) identity, and formal and real (or essential) distinction (or difference), and states that formal identity is stronger than real (or essential) identity, since the former entails the latter, while, on the contrary, real difference is stronger than formal distinction, since the latter is entailed by the former (ibid., pp. 91–92).