 There is no modal syllogistic explicitly outlined in any of Abelard’s logical works, though in the Dialectica, he exemplifies some of the valid mixed moods: M–M in the first figure, MM– in the second, and M–M in the third (M represents a possibility sentence and ‘–’ an assertoric). He also shows that uniform modal syllogisms are not generally valid, so that MMM is not valid unless the middle term in the major premise is read with the mode attached to it, as in: