In 1969 harry frankfurt attacked the principle of alternate possibilities, I.E., The principle that one is morally responsible for what one has done only if one could have done otherwise. The first two parts of this paper offer a supplement to and clarification of that principle; the third part defends the supplemented version of it against three frankfurt arguments; and the fourth comments on a recent discussion of it by michael zimmerman.

Austin argued that ‘if’ has sometimes a non-conditional function, his reason being that some types of if-statement are deviant by two criteria which establish a norm. Following Pears more or less closely, I shall refer to applications of these criteria as the contrapositive and nondetachment tests, and to any if-statement which fails at least one test as a pseudoconditional, or more briefly as a pseudo. Thus, to turn directly to the narrower subject of this paper- the singularity Austin exposed in (...) a thesis of Moore's - ‘He can, if he chooses’ fails either test. It does not entail ‘lf he cannot, he does not choose to’. Nor does it entail ‘He can’. Hence, it is doubly pseudo - and the same applies after systematic variation in grammatical person, tense and mood. (shrink)