2018-05-112018-05-112007-12PORTO, André. Wittgenstein e a medida da circunferência. Philósophos, Goiânia, v. 12, n. 2, p. 55-85, jul./dez. 2007. Disponível em: <https://www.revistas.ufg.br/philosophos/article/view/6300/4774>.1414-2236http://repositorio.bc.ufg.br/handle/ri/14896Wittgenstein’s philosophy of mathematics involves two highly controversial theses: the idea that mathematical propositions are not about (abstract) objects and the idea that no mathematical conjecture is ever answered as such, because the advent of the proof always deter-mines a semantical shift of the meanings of the terms involved in the conjecture. The present article offers a reconstruction of Wittgenstein’s arguments supporting these theses within a very restricted setting: Arc-himedes’ discovery of an algorithm for calculating the number Pi.porAcesso AbertoWittgensteinFilosofia da matemáticaContinuidadePhilosophy of mathematicsContinuityArtigo10.5216/phi.v12i2.6300