1. Andrews GE, Berndt BC (2005) Ramanujan’s lost notebook part I. Springer, New York. Quoted in Sect 5.10
2. Andrews GE, Berndt BC (2008) Ramanujan’s lost notebook part II. Springer, New York. Quoted in Sect 5.10
3. Arkeryd LO, Cutland NJ, Henson CW (1997) Nonstandard analysis. Theory and applications. Springer, Dordrecht. Quoted in Sect 5.3
4. Balaguer M (1998) Platonism and anti-platonism in mathematics. Oxford University Press, New York. Quoted in Sect 5.8
5. Berlin I (1953) The hedgehog and the fox: an essay on Tolstoy’s view of history. Weidenfeld & Nicolson, New York. Quoted in Sect 5.9