THE PURPOSE of this paper is to clarify some of the logical problems raised by certain uses of the word “imply”which, although very familiar in ordinary language, have not been adequately investigated by philosophers. There have been numerous references to this type of implication in recent philosophical writings. Some of these are listed below. 2 However, there does not exist, to my knowledge, any account of this concept in its own right; this deficiency I hope to remedy, in part, in (...) the following remarks. (shrink)

In recent years philosophers have given a good deal of attention to imperatives. They have concerned themselves mainly with the logical grammar of sentences of this kind, that is to say their relations to each other and to interrogative and indicative sentences. Very often this topic has been raised in terms of the problem ‘Is imperative inference possible, and if so, what kind of inference is it?’. Many philosophers have contended that there are logically valid inferences that involve imperative sentences. (...) Against this it has been argued that no such inferences are possible. It has even been held that there are no such things as imperatives at all – regarded, that is, as types of expression logically sui generis and independent of indicative sentences. (shrink)

In one way or another the theory and practice of modern medicine is confronting us with many dilemmas, chiefly, though not exclusively, of a moral character; the transplantation of organs, abortion, and euthanasia are examples, and closely associated with these are more obviously conceptual problems such as the definition of death and, for that matter, of life itself. Contemporary moral philosophers have been strangely silent on these matters, and have been content to leave the field to lawyers and churchmen and (...) those few medical men both able and willing to reflect upon their practices. (shrink)

In recent years philosophers have given a good deal of attention to imperatives. They have concerned themselves mainly with the logical grammar of sentences of this kind, that is to say their relations to each other and to interrogative and indicative sentences. Very often this topic has been raised in terms of the problem ‘Is imperative inference possible, and if so, what kind of inference is it?’. Many philosophers have contended that there are logically valid inferences that involve imperative sentences. (...) Against this it has been argued that no such inferences are possible. It has even been held that there are no such things as imperatives at all – regarded, that is, as types of expression logically sui generis and independent of indicative sentences. (shrink)

C. K. Grant; X*—On a Definition of Knowledge, Proceedings of the Aristotelian Society, Volume 73, Issue 1, 1 June 1973, Pages 157–166, https://doi.org/10.1093/a.