`Mathematics has become a court of arbitration, a supreme tribunal to decide fundamental questions -- on a concrete basis on which everyone can agree and where every statement can be controlled' (Hilbert).
Discuss.
Your answer may include discussion of the following questions:
Readings
(Resnik, 1980, 54-76);
(George and Velleman, 2002, ch. 6), until the sentence `There is a second hesitation...';
(Poincaré, 1978b, Book II, ch. 2, 4 (§§6-12))
Further readings
(Lavine, 1994, 182-97);
(Detlefsen, 1986a, chs. 1-2);