1. Frege and Hilbert on consistency;Blanchette;The Journal of Philosophy,1996
2. Frege on Consistency and Conceptual Analysis
3. Blanchette Patricia [2012]: Frege's Conception of Logic. Oxford University Press.
4. Boolos George [1987]: ‘The consistency of Frege's Foundations of Arithmetic’, in J. Thompson, ed, On Being and Saying: Essays in Honor of Richard Cartwright, pp. 3–20. Cambridge, Mass.: MIT Press. Reprinted in [, ], pp. 183–201. Page references are to this reprint.
5. Boolos George [1990]: ‘The standard of equality of numbers’, in George Boolos, ed., Meaning and Method: Essays in Honor of Hilary Putnam, pp. 261–277. Harvard University Press. Reprinted in [, ], pp. 301–314. Page references are to this reprint.