`The content of a statement of number is an assertion about a concept.' Explain.
Key readings
(Frege, 1980, ยงยง45-55)
(Resnik, 1980, ch. V)
(Wright, 1983, sects. iii-v)
Further readings
(Noonan, 2001, pp. 92-104)
(Dummett, 1981, pp. 236-42)