1. Aristotle. Greek texts: Oxford Classical Texts (Oxford: Oxford University Press,. various dates); many translations.
2. Language, Truth and Logic;Ayer,1936
3. What numbers could not be;Benacerraf;Philosophical Review,1965
4. Mathematical truth;Benacerraf;Journal of Philosophy,1973
5. J. Bolyai. The science of absolute space. Published as an appendix to W. Bolyai, Tentamen Juventutem Studiosam in Elementa Matheseos, Budapest, 1832.