Causalidad: en defensa de Hume

En 1748, Hume propuso la siguiente (archifamosa, archidiscutida y archicontrovertida) definición de causalidad: We may define a cause to be an object followed by another, and where all the objects, similar to the first, are followed by objects similar to the second. Or, in other words, where, if the first object had not been, the second never had existed. Ha sido denunciada, entre otros motivos, por contener una contradicción lógica.