In the proposition, 'the rose is red,' the predicate is taken to mean not the universal red but only the determinate red of the rose; in the proposition, 'all Christians are human beings,' the predicate is taken to mean only those humans who are Christian, from which proposition and the proposition, 'the Jews are not Christian,' there follows the conclusion (which did not recommend this syllogistic calculus to Mendelssohn) that 'therefore the Jews are not humans' (namely, not those humans that the Christians are).