 Of particular importance is the difference between concrete second intentions as they are dealt with in the Prior Analytics on the one hand, and in the Topics and the Posterior Analytics on the other. For the Prior Analytics deals with second intentions related to a syllogistic process, regardless of whether its premises are probable or necessary, whereas the Topics and the Posterior Analytics deal with those second intentions whereby the premises are qualified as probable or necessary, respectively. Therefore, while the Prior Analytics deals with the intentions involved in a syllogistic deduction only with regard to its mood and figure, the Topics and the Posterior Analytics deal with these intentions with regard to their probability and necessity (QsP; see Ebbesen &amp; Pinborg 1981–1982: 311 and 313).