Luca Barlassina and Fabio del Prete argue that the past has changed by appealing to a sentence whose truth value changes after the time to which it refers. We consider various interpretations of the sentence at issue and show that there is no interpretation under which their argument goes through. We suggest a possible source of the confusion and consider what implications the discussion may have for the analysis of tense.

Ludwig Wittgenstein acknowledges that the Augustinian picture also informed his earlier conception of language. The Augustinian identification of the meaning of a word with the word's referent is accepted only with a further restriction. In the Tractatus, Wittgenstein distinguishes between simple objects and the thereof composed complex objects. This chapter provides a systematic reconstruction of Wittgenstein's sometimes opaque remarks on ostensive definitions and his critique of the Augustinian picture of language. It then addresses the doctrines about names and naming endorsed (...) in the Tractatus. According to the later Wittgenstein the simple ostensive definition of a word, consisting in the utterance of the word accompanied by a pointing gesture, does not unambiguously determine the use of the word. Wittgenstein's arguments can be complemented by the observation that having the same sample is not necessary for two terms to be equivalent either. (shrink)