Abstract

Professor P. Bernays has kindly drawn my attention to the fact that the assignment of Godel numbers to formulas described on page 295 of volume I of this Journal, is not correct. Under this assignment, different formulas may obtain the same Godel number and therefore the argument given on page 296 under (i) is not cogent. The correct assignment would give, for the formula considered as an example, the Godel number 28. 320. 514. 782 The correction to be made on page 294, L 20 is obvious.