doi: 10.1017/S1755020308090084, Published by Cambridge University Press 31 March 2009 in Volume 1, Number 4 (2008) of The Review of Symbolic Logic.

On page 541, in the 4th paragraph, in line 7, an error occurred. The sentence should correctly read:

“For all worlds w, if there is more than one grain of sand in the pile in w, then there is still more than one grain of sand after removing one grain of sand.”