 But although the name ‘topos’ may be derived from this mnemotechnical context, Aristotle’s use of topoi does not rely on the technique of places. At least within the system of the book Topics, every given problem must be analyzed in terms of certain linguistic, semantic or logical criteria: Does the predicate of the sentence in question ascribe a genus or a definition or peculiar or accidental properties to the subject? Does the sentence express a sort of opposition, either contradiction or contrariety, etc.? Does the sentence express that something is more or less the case? Does it maintain identity or diversity? Are the words used linguistically derived from words that are part of an accepted premise? Depending on such criteria of the analyzed sentence one has to refer to a fitting topos. For this reason, the succession of topoi in the book Topics is organized in accordance with their salient linguistic, semantic or logical criteria; above all topoi presented in Books II–VII of this treatise are structured in accordance with the four so-called ‘predicables’, i.e. whether a predicate signifies the genus, an accident, a proprium (peculiar attribute) or the definition of the subject. This structure suggests that no additional mnemotechnique is essentially involved. Besides all this, there is at least one passage in which the use of the word ‘topos’ can be explained without referring to the previously mentioned mnemotechnique: In Topics VIII.1, 155b4–5 Aristotle says: “we must find the location (topos) from which to attack”, where the word ‘topos’ is obviously used to mean a starting point for attacking the theses of the opponents.