Abstract :
It has been pointed out Prof. S. Muroga that the entry in Table V of the above-named paper (ibid., vol. EC-14, pp. 315-325, June 1965) for the number of nondegenerate threshold functions of 7a rguments is incorrect. The original author notes that he neglected to include the self-dual functions making the correct entry: 8 274 797 440. Also, Prof. J. Sklansky has pointed out a mistake in the AFCRL report, "Threshold Functions Through n = 7" (see AF Cambridge Research Labs., Bedford, Mass., AFCRL Rept, 64-925, under Contract AF19(604)-8423 with RCA Labs., October 1964.) On page 1, the formula for Chow parameters is corrected. It should also be noted that the column "E" in the latter report does not represent the number of extremals as claimed; more inequalities can in some cases be eliminated by further monotonicity checks.
