Walton Chap. 1 “What is an Argument? The standard definitions of argument are too narrow. The fact that arguments are often used to refute to refute or question a claim is ignored. Hypothetical arguments are ignored Indirect proofs are not considered Context is ignored Distinctions are not made among “inference”, “reasoning”, and “argument” “Quarrel” is typically excluded 1.Textbook Definitions A variety of textbook definitions of argument are examined. a. Copi and Cohen A group of propositions of which one is claimed to follow from the others, which are regarded as providing support or grounds for the truth of that one b. Govier An argument is a set of claims that a person puts forward in an attempt to show that some further claim is rationally acceptable. Typically, people present arguments to try to persuade others to accept claims. The evidence or reasons put forward in defense of a claim are called the premises of an argument. An argument may have several premises, or it may have only one. The claim being defended in the argument is called its conclusion. An argument, then, is composed of one or more premises and a conclusion. c. Casullo A group of statements, some of which purportedly provide support for another. The statements which purportedly provide the support are the premises while the statement purportedly supported is the conclusion. Arguments are typically divided into two categories depending on the degree of support they purportedly provide. Deductive arguments purportedly provide conclusive support for their conclusions while inductive arguments purportedly provide only probable support. Some, but not all, arguments succeed in providing support for their conclusions. d. Freeman When we use the word argument in this book, we mean a message which attempts to establish a statement as true or worthy of belief on the basis of other statements. Persons putting forward arguments present certain claims, make certain assertions, which they hope their audience will simply accept. They also put forward some further statement as being supported by these accepted claims.. There is, thus, a further claim that because we accept the first statements, we should accept the latter. The former give evidence, justification, support for the later. There are thus two radically different roles which a statement may play in an argument. A reason for some other statement is a premise. A statement defended by some other statement or statements is a conclusion. Arguments, then, involve these three factors: premises, conclusions, and a claim that the premises support the conclusions. e. Soccio and Barry As used in the study of logic, an argument is any of a group of propositions (truth claims), one of which is claimed to follow logically from the others. The key phrase is ‘follow logically from.’ For a group of propositions to be an argument, one of them must be claimed to follow logically from the others. f. Carney and Scheer Logic is primarily concerned with arguments; it attempts to provide methods to distinguish between correct and incorrect arguments. An argument consists of a set of statements offered as reasons for another statement. The set of statements offered as reasons is called the premises of the argument. The statement for which the reasons are offered is called the conclusion of the argument. g. Gustason and Ulrich For our purposes an argument may be characterized as a sequence of sentences of which one -the conclusion of the argument – is marked off as following from the others – which are the premises of the argument. h. Packard and Falconer An argument (in standard form) is defined as a sequence of statements, called assumptions, followed by the word so and a statement called the conclusion. i. Kahane An argument consists of one or more sentences, called premises of the argument, offered in support of another sentence, called the argument’s conclusion. j. Hurley An argument, as it occurs in logic, is a group of statements, one or more of which (the premises) are claimed to provide support for, or reasons to believe, one of the others (the conclusion). 2.Reasoning in Argument The Amsterdam School offers a definition of argument that permits both the justification and refutation of opinions. This definition is also more explicitly dialectical than those considered previously. (1) The speaker has advanced an opinion O. (2) The speaker has put forward a series of assertions S1, S2,…., Sn. (3) Advancing S1, S2,…., Sn counts as an attempt by the speaker to convince the hearer O is acceptable. (4) The speaker believes that the hearer does not already accept O, but will accept S1, S2,…., Sn as justification for O. (5) The speaker believes that O and S1, S2,…., Sn are acceptable, and that S1, S2,…., Sn justify O. Brief consideration is given to the relationship between argument and reasoning 3.Hypothetical Arguments There is hypothetical reasoning. Are there hypothetical arguments? One position is that there is hypothetical reasoning and inference, but not hypothetical arguments. For anyone who accepts that there are hypothetical arguments the definitions of sections 1 and 2 need to be broadened. 4.Reductio Ad Absurdum In a reductio or indirect proof arguments the negation of the conclusion is assumed and shown to imply a contradiction. This presents problems for the definitions considered. Walton proposes a new definition: a. An argument is a sequence of reasoning, that is, a set of propositions, in which some propositions (conclusions) are inferred from others (premises). b. There is an issue (determined by the context of dialogue in which the argument was used) to be settled. c. The reasoning is being used (or can later be used, in the case of hypothetical arguments) to contribute to the settling of an issue. The unsettledness can take six basic forms: 1. conflict of opinions 2. conflict of interests 3. lack of definitive determination of truth 4. choice with insufficient evidence 5. lack of information 6. grievance between individuals that has not been articulated into words Contrast between argument and explanation is whether the claim under discussion is regarded as settled or not. If settled—explanation. If not – argument. Both involve inferences and reasoning. 5.The Probative Function One of the most important uses of an argument is the probative function, whereby the premises are used to give evidence that will shift forward and transfer to the conclusion, making the conclusion acceptable or evident to the respondent, in a way or to a level that it was not before. However, this is not the only function of argument. 6.The Dialectical Context What we should be looking for, when we are seeking to identify an argument is a proposition that is unsettled, that is, open to contention or discussion, so that considerations can be brought for or against it in a dialogue. There are numerous types of dialogues. a. critical discussion or persuasion b. negotiation c. mixed dialogues d. inquiry e. deliberation f. eristic or quarrel g. information seeking 7.The Concepts of Argument and Explanation There are no generally agreed upon definitions for either argument or explanation. Argument Logicians look at argument from a semantic point of view that sees as an argument as consisting of propositions having truth-values (or probabilities) and relationships that depend on these values. In speech communication argument is a social or verbal activity governed by rules of politeness appropriate for a particular type of conversation. Walton is proposing a functional view that attempts to do justice to both of the previous viewpoints. Explanation There is little agreement about the proper definition for explanation. Scientific and everyday explanations are different. Distinction for our purpose Both arguments and explanations contain reasoning, but the reasoning is used for different purposes. The purpose of argument is to settle an open issue. The purpose of an explanation is to take something unfamiliar and make it make sense by relating it to something familiar. 8.The Ad Populum Fallacy A fallacy is a deceptive, erroneous, or otherwise incorrect move in argumentation. If a person is not arguing, but doing something else, it could be inappropriate and misleading to accuse him or her of committing a fallacy, or of arguing wrongly. A conditional criticism could be given. 9.The Fallacy of Begging the Question Circular reasoning is not itself fallacious, unless the circular reasoning is used in an argument that fails to, yet is supposed to, fulfill the probative function in a context of dialogue. Thus, the fallacy of petitio principii is a pragmatic failure relating to how an argument is used, and its evaluation depends on what structure the argument is supposed to have. 10.Towards a Pragmatic Concept of Argument When dealing with the identification, diagramming, and evaluation of arguments the semantic conception is a narrow way to view the concept of argument. There is an important distinction to be made between an argument and a successful (good, correct, reasonable) argument. Not all arguments are correct (good, valid). Burden of proof in a context of dialogue implements a standard for success of an argument in realizing its goal. There is also an important distinction to be made between an argument that is effective in persuading the respondent successfully, and an argument that is correct, meaning that it is valid or sound (the normative criterion of correctness) or that meets the appropriate burden of proof in a context (pragmatic criterion of correctness).