What Is Circular Reasoning?
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Logical Fallacies Moorpark College Writing Center
Logical Fallacies Moorpark College Writing Center Ad hominem (Argument to the person): Attacking the person making the argument rather than the argument itself. We would take her position on child abuse more seriously if she weren’t so rude to the press. Ad populum appeal (appeal to the public): Draws on whatever people value such as nationality, religion, family. A vote for Joe Smith is a vote for the flag. Alleged certainty: Presents something as certain that is open to debate. Everyone knows that… Obviously, It is obvious that… Clearly, It is common knowledge that… Certainly, Ambiguity and equivocation: Statements that can be interpreted in more than one way. Q: Is she doing a good job? A: She is performing as expected. Appeal to fear: Uses scare tactics instead of legitimate evidence. Anyone who stages a protest against the government must be a terrorist; therefore, we must outlaw protests. Appeal to ignorance: Tries to make an incorrect argument based on the claim never having been proven false. Because no one has proven that food X does not cause cancer, we can assume that it is safe. Appeal to pity: Attempts to arouse sympathy rather than persuade with substantial evidence. He embezzled a million dollars, but his wife had just died and his child needed surgery. Begging the question/Circular Logic: Proof simply offers another version of the question itself. Wrestling is dangerous because it is unsafe. Card stacking: Ignores evidence from the one side while mounting evidence in favor of the other side. Users of hearty glue say that it works great! (What is missing: How many users? Great compared to what?) I should be allowed to go to the party because I did my math homework, I have a ride there and back, and it’s at my friend Jim’s house. -
Fitting Words Textbook
FITTING WORDS Classical Rhetoric for the Christian Student TABLE OF CONTENTS Preface: How to Use this Book . 1 Introduction: The Goal and Purpose of This Book . .5 UNIT 1 FOUNDATIONS OF RHETORIC Lesson 1: A Christian View of Rhetoric . 9 Lesson 2: The Birth of Rhetoric . 15 Lesson 3: First Excerpt of Phaedrus . 21 Lesson 4: Second Excerpt of Phaedrus . 31 UNIT 2 INVENTION AND ARRANGEMENT Lesson 5: The Five Faculties of Oratory; Invention . 45 Lesson 6: Arrangement: Overview; Introduction . 51 Lesson 7: Arrangement: Narration and Division . 59 Lesson 8: Arrangement: Proof and Refutation . 67 Lesson 9: Arrangement: Conclusion . 73 UNIT 3 UNDERSTANDING EMOTIONS: ETHOS AND PATHOS Lesson 10: Ethos and Copiousness .........................85 Lesson 11: Pathos ......................................95 Lesson 12: Emotions, Part One ...........................103 Lesson 13: Emotions—Part Two ..........................113 UNIT 4 FITTING WORDS TO THE TOPIC: SPECIAL LINES OF ARGUMENT Lesson 14: Special Lines of Argument; Forensic Oratory ......125 Lesson 15: Political Oratory .............................139 Lesson 16: Ceremonial Oratory ..........................155 UNIT 5 GENERAL LINES OF ARGUMENT Lesson 17: Logos: Introduction; Terms and Definitions .......169 Lesson 18: Statement Types and Their Relationships .........181 Lesson 19: Statements and Truth .........................189 Lesson 20: Maxims and Their Use ........................201 Lesson 21: Argument by Example ........................209 Lesson 22: Deductive Arguments .........................217 -
The Acquisition of Scientific Knowledge Via Critical Thinking: a Philosophical Approach to Science Education
Forum on Public Policy The Acquisition of Scientific Knowledge via Critical Thinking: A Philosophical Approach to Science Education Dr. Isidoro Talavera, Philosophy Professor and Lead Faculty, Department of Humanities & Communication Arts, Franklin University, Ohio, USA. Abstract There is a gap between the facts learned in a science course and the higher-cognitive skills of analysis and evaluation necessary for students to secure scientific knowledge and scientific habits of mind. Teaching science is not just about how we do science (i.e., focusing on just accumulating undigested facts and scientific definitions and procedures), but why (i.e., focusing on helping students learn to think scientifically). So although select subject matter is important, the largest single contributor to understanding the nature and practice of science is not the factual content of the scientific discipline, but rather the ability of students to think, reason, and communicate critically about that content. This is achieved by a science education that helps students directly by encouraging them to analyze and evaluate all kinds of phenomena, scientific, pseudoscientific, and other. Accordingly, the focus of this treatise is on critical thinking as it may be applied to scientific claims to introduce the major themes, processes, and methods common to all scientific disciplines so that the student may develop an understanding about the nature and practice of science and develop an appreciation for the process by which we gain scientific knowledge. Furthermore, this philosophical approach to science education highlights the acquisition of scientific knowledge via critical thinking to foment a skeptical attitude in our students so that they do not relinquish their mental capacity to engage the world critically and ethically as informed and responsibly involved citizens.1 I. -
Informal Logic Examples and Exercises
Contents Section 1 Quotation Marks: Direct Quotes, Scare Quotes, Use/Mention Quotes 1 Introduction 1 Instructions 5 Exercises 7 Section 2 Meaning and Definition 13 Introduction 13 Instructions 17 Exercises 19 Section 3 Ambiguity, Homophony, Vagueness, Generality 23 Introduction 23 Instructions 27 Exercises 29 Section 4 Connotation and Assertive Content 35 Introduction 35 Instructions 37 Exercises 39 Section 5 Simple and Compound Sentences 45 Introduction 45 Instructions 49 Exercises 51 vi Contents Section 6 Arguments; Simple and Serial Argument Forms 61 Introduction 61 Instructions 65 Exercises 67 Section 7 Convergent, Divergent, and Linked Argument Forms 81 Introduction 81 Instructions 85 Exercises 87 Section 8 Unstated Premises and Conclusions; Extraneous Material 95 Introduction 95 Instructions 99 Exercises 10 1 Section 9 Complex Arguments 115 Introduction 115 Instructions 121 Exercises 123 Section 10 Argument Strengths 145 Introduction 145 Instructions 149 Exercises 151 Section 11 Valid Deductive Arguments: Propositional Logic 159 Introduction 159 Instructions 165 Exercises 167 Section 12 Valid Deductive Arguments: Quantificational Logic 179 Introduction 179 Instructions 187 Exercises 189 Contents vii Section 13 Fallacies One 199 Argument from Authority Two Wrongs Make a Right Irrelevant Reason Argument from Ignorance Ambiguous Argument Slippery Slope Argument from Force Introduction 199 Instructions for Sections 13-16 203 Exercises 205 Section 14 Fallacies Two 213 Ad Hominem Argument Provincialism Tokenism Hasty Conclusion Questionable -
Circular Reasoning
Cognitive Science 26 (2002) 767–795 Circular reasoning Lance J. Rips∗ Department of Psychology, Northwestern University, 2029 Sheridan Road, Evanston, IL 60208, USA Received 31 October 2001; received in revised form 2 April 2002; accepted 10 July 2002 Abstract Good informal arguments offer justification for their conclusions. They go wrong if the justifications double back, rendering the arguments circular. Circularity, however, is not necessarily a single property of an argument, but may depend on (a) whether the argument repeats an earlier claim, (b) whether the repetition occurs within the same line of justification, and (c) whether the claim is properly grounded in agreed-upon information. The experiments reported here examine whether people take these factors into account in their judgments of whether arguments are circular and whether they are reasonable. The results suggest that direct judgments of circularity depend heavily on repetition and structural role of claims, but only minimally on grounding. Judgments of reasonableness take repetition and grounding into account, but are relatively insensitive to structural role. © 2002 Cognitive Science Society, Inc. All rights reserved. Keywords: Reasoning; Argumentation 1. Introduction A common criticism directed at informal arguments is that the arguer has engaged in circular reasoning. In one form of this fallacy, the arguer illicitly uses the conclusion itself (or a closely related proposition) as a crucial piece of support, instead of justifying the conclusion on the basis of agreed-upon facts and reasonable inferences. A convincing argument for conclusion c can’t rest on the prior assumption that c, so something has gone seriously wrong with such an argument. -
Fallacies Are Deceptive Errors of Thinking
Fallacies are deceptive errors of thinking. A good argument should: 1. be deductively valid (or inductively strong) and have all true premises; 2. have its validity and truth-of-premises be as evident as possible to the parties involved; 3. be clearly stated (using understandable language and making clear what the premises and conclusion are); 4. avoid circularity, ambiguity, and emotional language; and 5. be relevant to the issue at hand. LogiCola R Pages 51–60 List of fallacies Circular (question begging): Assuming the truth of what has to be proved – or using A to prove B and then B to prove A. Ambiguous: Changing the meaning of a term or phrase within the argument. Appeal to emotion: Stirring up emotions instead of arguing in a logical manner. Beside the point: Arguing for a conclusion irrelevant to the issue at hand. Straw man: Misrepresenting an opponent’s views. LogiCola R Pages 51–60 Appeal to the crowd: Arguing that a view must be true because most people believe it. Opposition: Arguing that a view must be false because our opponents believe it. Genetic fallacy: Arguing that your view must be false because we can explain why you hold it. Appeal to ignorance: Arguing that a view must be false because no one has proved it. Post hoc ergo propter hoc: Arguing that, since A happened after B, thus A was caused by B. Part-whole: Arguing that what applies to the parts must apply to the whole – or vice versa. LogiCola R Pages 51–60 Appeal to authority: Appealing in an improper way to expert opinion. -
Argumentum Ad Populum Examples in Media
Argumentum Ad Populum Examples In Media andClip-on spare. Ashby Metazoic sometimes Brian narcotize filagrees: any he intercommunicatedBalthazar echo improperly. his assonances Spense coylyis all-weather and terminably. and comminating compunctiously while segregated Pen resinify The argument further it did arrive, clearly the fallacy or has it proves false information to increase tuition costs Fallacies of emotion are usually find in grant proposals or need scholarship, income as reports to funders, policy makers, employers, journalists, and raw public. Why do in media rather than his lack of. This fallacy can raise quite dangerous because it entails the reluctance of ceasing an action because of movie the previous investment put option it. See in media should vote republican. This fallacy examples or overlooked, argumentum ad populum examples in media. There was an may select agents and are at your email address any claim that makes a common psychological aspects of. Further Experiments on retail of the end with Displaced Visual Fields. Muslims in media public opinion to force appear. Instead of ad populum. While you are deceptively bad, in media sites, weak or persuade. We often finish one survey of simple core fallacies by considering just contain more. According to appeal could not only correct and frollo who criticize repression and fallacious arguments are those that they are typically also. Why is simply slope bad? 12 Common Logical Fallacies and beige to Debunk Them. Of cancer person commenting on social media rather mention what was alike in concrete post. Therefore, it contain important to analyze logical and emotional fallacies so one hand begin to examine the premises against which these rhetoricians base their assumptions, as as as the logic that brings them deflect certain conclusions. -
Circles and Analogies in Public Health Reasoning Louise Cummings
SUMMER 2014, VOL. 29, NO. 2 35 Circles and Analogies in Public Health Reasoning Louise Cummings School of Arts and Humanities Nottingham Trent University, UK Abstract 7KHVWXG\RIWKHIDOODFLHVKDVFKDQJHGDOPRVWEH\RQGUHFRJQLWLRQVLQFH&KDUOHV+DPEOLQFDOOHG IRUDUDGLFDOUHDSSUDLVDORIWKLVDUHDRIORJLFDOLQTXLU\LQKLVERRN)DOODFLHV7KH³ZLWOHVV H[DPSOHVRIKLVIRUEHDUV´WRZKLFK+DPEOLQUHIHUUHGKDYHODUJHO\EHHQUHSODFHGE\PRUH authentic cases of the fallacies in actual use. It is now not unusual for fallacy and argumentation theorists to draw on actual sources for examples of how the fallacies are used in our everyday UHDVRQLQJ+RZHYHUDQDVSHFWRIWKLVPRYHWRZDUGVJUHDWHUDXWKHQWLFLW\LQWKHVWXG\RIWKH fallacies, an aspect which has been almost universally neglected, is the attempt to subject the fallacies to empirical testing of the type which is more commonly associated with psychological experiments on reasoning. This paper addresses this omission in research on the fallacies by examining how subjects use two fallacies – circular argument and analogical argument – during a reasoning task in which subjects are required to consider a number of public health scenarios. Results are discussed in relation to a view of the fallacies as cognitive heuristics that facilitate reasoning in a context of uncertainty. Keywords: analogical argument, circular argument, heuristic, informal fallacy, public health, reasoning, uncertainty I. Introduction puns, anecdotes, and witless examples of his forbears. The study of the fallacies has changed :KHUHSKLORVRSKLFDOUHÀHFWLRQRQWKH considerably in -
Fallacies in Reasoning
FALLACIES IN REASONING FALLACIES IN REASONING OR WHAT SHOULD I AVOID? The strength of your arguments is determined by the use of reliable evidence, sound reasoning and adaptation to the audience. In the process of argumentation, mistakes sometimes occur. Some are deliberate in order to deceive the audience. That brings us to fallacies. I. Definition: errors in reasoning, appeal, or language use that renders a conclusion invalid. II. Fallacies In Reasoning: A. Hasty Generalization-jumping to conclusions based on too few instances or on atypical instances of particular phenomena. This happens by trying to squeeze too much from an argument than is actually warranted. B. Transfer- extend reasoning beyond what is logically possible. There are three different types of transfer: 1.) Fallacy of composition- occur when a claim asserts that what is true of a part is true of the whole. 2.) Fallacy of division- error from arguing that what is true of the whole will be true of the parts. 3.) Fallacy of refutation- also known as the Straw Man. It occurs when an arguer attempts to direct attention to the successful refutation of an argument that was never raised or to restate a strong argument in a way that makes it appear weaker. Called a Straw Man because it focuses on an issue that is easy to overturn. A form of deception. C. Irrelevant Arguments- (Non Sequiturs) an argument that is irrelevant to the issue or in which the claim does not follow from the proof offered. It does not follow. D. Circular Reasoning- (Begging the Question) supports claims with reasons identical to the claims themselves. -
Chapter 4: INFORMAL FALLACIES I
Essential Logic Ronald C. Pine Chapter 4: INFORMAL FALLACIES I All effective propaganda must be confined to a few bare necessities and then must be expressed in a few stereotyped formulas. Adolf Hitler Until the habit of thinking is well formed, facing the situation to discover the facts requires an effort. For the mind tends to dislike what is unpleasant and so to sheer off from an adequate notice of that which is especially annoying. John Dewey, How We Think Introduction In everyday speech you may have heard someone refer to a commonly accepted belief as a fallacy. What is usually meant is that the belief is false, although widely accepted. In logic, a fallacy refers to logically weak argument appeal (not a belief or statement) that is widely used and successful. Here is our definition: A logical fallacy is an argument that is usually psychologically persuasive but logically weak. By this definition we mean that fallacious arguments work in getting many people to accept conclusions, that they make bad arguments appear good even though a little commonsense reflection will reveal that people ought not to accept the conclusions of these arguments as strongly supported. Although logicians distinguish between formal and informal fallacies, our focus in this chapter and the next one will be on traditional informal fallacies.1 For our purposes, we can think of these fallacies as "informal" because they are most often found in the everyday exchanges of ideas, such as newspaper editorials, letters to the editor, political speeches, advertisements, conversational disagreements between people in social networking sites and Internet discussion boards, and so on. -
The Strategy of Equivocation in Adorno's "Der Essay Als Form"
$PELJXLW\,QWHUYHQHV7KH6WUDWHJ\RI(TXLYRFDWLRQ LQ$GRUQR V'HU(VVD\DOV)RUP 6DUDK3RXUFLDX MLN, Volume 122, Number 3, April 2007 (German Issue), pp. 623-646 (Article) 3XEOLVKHGE\-RKQV+RSNLQV8QLYHUVLW\3UHVV DOI: 10.1353/mln.2007.0066 For additional information about this article http://muse.jhu.edu/journals/mln/summary/v122/122.3pourciau.html Access provided by Princeton University (10 Jun 2015 14:40 GMT) Ambiguity Intervenes: The Strategy of Equivocation in Adorno’s “Der Essay als Form” ❦ Sarah Pourciau “Beziehung ist alles. Und willst du sie näher bei Namen nennen, so ist ihr Name ‘Zweideutigkeit.’” Thomas Mann, Doktor Faustus1 I Adorno’s study of the essay form, published in 1958 as the opening piece of the volume Noten zur Literatur, has long been considered one of the classic discussions of the genre.2 Yet to the earlier investigations of the essay form on which his text both builds and plays, Adorno appears to add little that could be considered truly new. His characterization of the essayistic endeavor borrows heavily and self-consciously from an established tradition of genre exploration that reaches back—despite 1 Thomas Mann, Doktor Faustus: das Leben des deutschen Tonsetzers Adrian Leverkühn, erzählt von einem Freunde, Gesammelte Werke VI (Frankfurt a. M.: Suhrkamp, 1974) 63. Mann acknowledges the enormous debt his novel owes to Adorno’s philosophy of music in Die Entstehung des Doktor Faustus; Roman eines Romans (Berlin: Suhrkamp, 1949). Pas- sages stricken by Mann from the published version of the Entstehung are even more explicit on this subject. These passages were later published together with his diaries. -
An Analysis of Informal Reasoning Fallacy and Critical Thinking Dispositions Amoung Malaysian Undergraduates
An Analysis of Informal Reasoning Fallacy and Critical Thinking Dispositions among Malaysian Undergraduates Shamala Ramasamy Asia e University Malaysia [email protected] 28th October 2011 Abstract In this information age, the amount of complex information available due to technological advancement would require undergraduates to be extremely competent in processing information systematically. Critical thinking ability of undergraduates has been the focal point among educators, employers and the public at large. One of the dimensions of critical thinking is informal fallacy. Informal fallacy is able to distract us in thinking critically because they tend to appear as reasonable and their unreliability is not apparent on the surface. Empirical research affirms that critical thinking involves cognitive skills and dispositions. Critical thinking dispositions and informal reasoning fallacy are integral in facilitating students to have high ability in thinking critically. The aim of this paper is to measure the level of critical thinking ability among Malaysian undergraduates through the use of informal logic and critical thinking dispositions. A cross sectional survey was conducted on 189 samples of undergraduates from three different disciplines, testing them on newly developed Informal Reasoning Fallacy Instrument (IRFI) and California Critical Thinking Dispositions (CCTDI). A high reliability was achieved from both tests, with Cronbach alpha .802 for IRFI and .843 for CCTDI. Both tests projected good results among Malaysian undergraduates. Keywords Critical thinking disposition, informal logic, fallacy Introduction Critical thinking is neither the state-of-the-art scientific thinking nor it is a fad. It can be traced back to the early philosophies of Plato and Aristotle. In fact, philosophy itself revolves around critical thinking.