_Philosophy and Argument_ presents systematic analysis of the role of argumentation in philosophy.

This is an exploration of what Locke and Whately said about the Argumentatum ad Hominem, especially in the context of what they said about the other ad arguments, and with a view to ascertaining whether what they said lends support to the understanding of this argument implicit in Johnstone's thesis that all valid philosophical arguments are ad hominem. It is concluded that this support is forthcoming insofar as Locke and Whately had in mind an argument concerned with principles.The essay ends (...) with a brief reformulation of Johnstone's generalization regarding philosophical arguments. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:The Philosophical Basis of RhetoricHenry W. JohnstoneI want to begin by distinguishing between what has a philosophical basis at all and what has none. Science, history, morals, and art have a philosophical basis. Fishing, tennis, needlecraft, and carpentry do not. The criterion that determines membership in each list is simple: an activity has a philosophical basis if, and only if, the practice of it distinguishes man from the animals. (...) It must be disqualified on the ground that some animals, as well as men, fish. It might be argued, however, that there is an art of fishing requiring tools utilizable by man alone, and that the ability to fish in this way distinguishes man form the animal. To be sure, in some cultures fishing with appropriate tools is necessary. In others, carpentry is. But if we came across a culture in which fishing did not occur, we would not say, "This creature does not fish; hence he is not a man'; and the same for carpentry. It may seem that the same question arises for science and history. Not all cultures are scientific. If science is indeed, as I maintain, necessary for men, what then prevents us from visiting some primitive tribe and saying, "These creatures have no science; hence they are not men"? The answer is that the culture we have encountered is prescientific. Even though its participants have at the moment no science, science is somehow "in the cards" for them. We would not characterize the nomads of Afghanistan as being in a pre-fishing era. We would not say that fishing was in the cards for them. Of course if the desert should become a sea, they will become fishermen, and there will have been a pre-fishing era. But it is not necessary to the character or status of the nomad that he represent either a pre-fishing or a fishing, or, for that matter, a post-fishing era. It is not necessary for man, however, that he be either prescientific man or scientific man or postscientific man. I add the last rubric to accommodate not only the tragic possibility of a cataclysm that could wipe out all humans capable of maintaining the tradition of science but also the ironic possibility that man might some day simply turn away from science. In either eventuality, man would be essentially characterized as a being living in a [End Page 15] postscientific era; that is, not merely as a being bereft of science, but as a being living a life either oriented to the cataclysm that had shattered the tradition of science or else oriented to the conviction that science is a thing of the past. The non-fishing nomad, on the other hand, need not take any position at all with regard to the nature or value of fishing. The possibility of fishing need receive no mention in any characterization of him.The principle I have roughly stated and exemplified implies that if rhetoric has a philosophical basis, it is necessary to man, in the sense that all men live in either a pre-rhetorical culture, or a rhetorical culture, or a post-rhetorical culture. Each of these cultures is characterized by a disposition toward rhetoric. In the pre-rhetorical era, even though man does not engage in any form of rhetoric that we can recognize, we can see rhetorical activity as in the cards for him. Perhaps someone will object that there never has been such an era; as long as man has existed, he has engaged in rhetoric. So much the better for my argument; for then it is all the more clearly the case that rhetoric is necessary to man. But if man has gone through a pre-rhetorical phase, he is distinguished form all nonhuman creatures in this respect. No one would say of rats, cats, or cows that they are not yet engaged in rhetoric, but that once the idea occurs to them they will be. But man is either rhetorical from the outset or fated to become so once a certain idea dawns upon him—this, at any rate, is what anyone would be claiming who asserted that rhetoric has a... (shrink)

This article focuses on Homers idea of reflexive rhetoric. The majority of Homeric deliberation scenes contain no deliberative calculi. One approach to this problem would be to generalize from the scenes where Odysseus uses deliberative calculi to those where he does not. One might argue, though, that data have to be transmitted to and outputted from a computer via interfaces, one where data are transformed into electrical impulses, and one where the output is printed as information. The deliberative calculus cannot (...) be the essential link between deliberation and persuasion, though it undoubtedly figures into the process of self-persuasion to the extent that it either explicitly or implicitly brings about a particular decision. In this perspective, the fact that Homer is frequently silent about deliberative calculi is irrelevant to the question of whether Odysseus persuades himself. The idea of Homeric rhetoric is alleged to pose the problem of anachronism. Moving toward an account of reflexive rhetoric allows to see in even greater detail the centrality of rhetoric to human condition. Accession Number: 18705553; Mifsud, Mari Lee 1; Affiliations: 1: Department of Rhetoric and Public Address, Whitman College.; Issue Info: 1998, Vol. 31 Issue 1, p41; Thesaurus Term: RHETORIC; Thesaurus Term: AUTHORSHIP; Thesaurus Term: LITERATURE; Subject Term: HOMER; Subject Term: ODYSSEUS (Greek mythology); Subject Term: ERRORS & blunders, Literary; Subject Term: PHILOSOPHY; Number of Pages: 14p; Document Type: Article. (shrink)

It has often been argued that since all sound arguments are either inductive or deductive, and philosophical arguments are neither, no philosophical arguments are sound. In his recent book Philosophical Reasoning, Passmore attempts to show that sound philosophical arguments are possible. He does this not by attacking the premise that all sound arguments are either inductive or deductive, but rather by attacking the premise that philosophical arguments are neither deductive nor inductive. In fact, he asserts, “Philosophical reasoning, if it is (...) to be valid at all, must be deductive in its formal structure.” Passmore’s point is that deductive arguments are by no means confined to mathematical reasoning. Mathematics uses deductive inference in one way, and philosophy in another. Passmore does not attempt to define this alleged difference between the way mathematics uses deductive inference and the way philosophy uses it. Instead he gives examples of kinds of argument that are often used in philosophy and seldom elsewhere. One such kind of argument consists in pointing out that one’s opponent has begged the question. Another is the so-called ‘infinite regress’ argument. Again, the kind of argument that a philosopher is using when he ‘reminds’ his interlocutor of a principle that he has presumably forgotten or overlooked in the process of formulating his philosophical position is fairly common in philosophy although not frequently used in other fields. Other sorts of argument cited by Passmore as basically philosophical are ‘verbal analysis’ and ‘self-refutation’. The considerations that Passmore has in mind in characterizing all of these arguments as philosophical are stylometric. By this I mean that what motivates him to classify an argument as philosophical is not any property attaching to the argument itself, but rather the fact that it occurs for the most part in philosophical contexts. He explicitly states that other kinds of arguments, including those mainly used in mathematical contexts, can occur in philosophy, and that the arguments which he classifies as philosophical can occur in non-philosophical contexts. (shrink)

If necessity is a generic notion, then, like any generic notion, it becomes specified not by a criterion as such but by a differentia. The differentia of logical necessity is that the denial of a logically necessary proposition is self-contradictory; one of our best criteria of logical necessity is that after careful consideration we see that the denial of the proposition is self-contradictory.

This important volume explores alternative ways in which those involved in the field of speech communication have attempted to find a philosophical grounding for rhetoric. Recognizing that rhetoric can be supported in a wide variety of ways, this text examines eight different philosophies of rhetoric: realism, relativism, rationalism, idealism, materialism, existentialism, deconstructionism, and pragmatism. The value of this book lies in its pluralistic and comparative approach to rhetorical theory. Although rhetoric may be the more difficult road to philosophy, the fact (...) that it is being traversed by a group of authors largely from speech communication demonstrates important growth in this field. Ultimately, there is recognition that if different thinkers can have solid reasons to adhere to disparate philosophies, serious communication problems can be eliminated. _Rhetoric and Philosophy_ will assist scholars in choosing from among the many philosphical starting places for rhetoric. (shrink)

The purpose of this note is to present a set of rules for the syllogism which not only is equivalent with the set ordinarily used, but also is the dual of the latter. It must be emphasized, however, that the discussion of both of these sets presupposes the hypothetical interpretation of universal propositions, and would not hold true of the existential interpretation of such propositions. A universal proposition is interpreted hypothetically, rather than existentially, when it is not assumed that the (...) class denoted by its subject must have members. Thus the hypothetical interpretation of “All unicorns are mammals” would be just “If anything is a unicorn, then it is a mammal—but it is not necessarily true that unicorns exist.” One important consequence of the distinction between these two modes of interpretation is that rule 3, below, is true for the hypothetical interpretation, but not for the existential. (shrink)

An analysis of effectiveness of some of hume's arguments in a framework developed by the author. The author states his position that arguments attacking positions attempt to show that, Given the assumptions of a position, Certain consequences are incompatible with it--A valid species of "argumentum ad hominem". Although this species does not work for constructive philosophical "proofs," it will work inversely in arguments (defending such proofs) which cite possible objections. These charge "petitio": the objection assumes what the position denies or (...) "vice versa". Eight arguments are judged as "ad hominem" or as charging "petitio" and as effective or ineffective in either case. The analyses elaborate the author's position, And the mode of analysis is suggested as an adjunct to considering a philosopher's conclusions. (shrink)