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Title: Fallacies 1 22


1
Chapter 3
  • Fallacies 1- 22

2
Fallacies
  • Is a defect in an argument that consist in
    something other than merely false premises.
  • A formal fallacy is one that may be identified by
    merely examining the form or structure of an
    argument. How it is worded not what it says.
  • A informal fallacy are those that can be detected
    only by examining the content of the argument.

3
Fallacies 1 -22
  • Appeal to Force occurs whenever an arguer poses a
    conclusion to another person and tells that
    person either implicitly or explicitly that some
    harm will come to him or her if he or she does
    not accept the conclusion.
  • Example The most beautiful women in America are
    from the state of Oregon. If you dont agree
    with me I will have my bigger older brother from
    Oregon beat you up.

4
Appeal to Pity
  • Occurs when an arguer attempts to support a
    conclusion by merely evoking pity from the reader
    or listening.
  • Example I lost my girlfriend, my first wife, and
    my mistress so there is no way I cheated on my
    second wife.

5
Appeal to the People
  • Uses these desires to get the reader or listener
    to accept a conclusion.
  • Two types Direct Approach and Indirect Approach
  • Example Of course you are Mormon, 99.9 of all
    people I meet from Utah and Eastern Oregon are
    Mormon.

6
Argument Against the Person
  • This fallacy always involves two arguers. One of
    them advances (either directly or implicitly) a
    certain argument, and the other then responds by
    directing his or her attention not to the first
    persons argument but to the first person
    himself.
  • Example While in office Jimmy Cater favored
    immigration in America. But, Jimmy Cater is
    nothing more than a bad one term President that
    caused poverty problems in many bordering states
    near Mexico.

7
Accident
  • Is committed when a general rule is applied to a
    specific case it was not intended to cover.
  • Example Freedom of Press is a constitutional
    right. Therefore, the AJC can criticize Jim
    Harrick until he gets fired, his wife leaves him,
    and he has no credibility.

8
Straw Man
  • Is committed when an arguer distorts an
    opponents argument for the purpose of more
    easily attacking it, demolishes the distorted
    argument, and then concludes that the opponents
    real argument has been demolished.
  • Example The professors at CCSU are proposing a
    no hair cut policy for the staff. What do they
    expect all the professors to look like a bunch
    of hippies.

9
Missing the Point
  • Illustrates a special form of irrelevance. This
    fallacy occurs when the premises of an argument
    support one particular conclusion, but then a
    different conclusion, often vaguely related to
    the correct conclusion, is dawn.
  • DUIs are at a all-time high in Clayton County.
    The conclusion is obvious quick serving beer to
    people who own cars.

10
Red Herring
  • Is committed when the arguer diverts the
    attention of the reader or listener by changing
    the subject to a different but sometimes subtly
    related one.
  • Example The Falcons are an exciting team to
    watch this season. But they are still only 1-2.
    Michael Vick could be the best quarterback ever.

11
Appeal to Unqualified Authority
  • Is a variety of the argument from authority and
    occurs when the cited authority or witness lacks
    credibility. Someone is stated an expert in an
    area they are not.
  • Example My basketball coach says that Johnny
    Untinas is the best quaterback of all-time. So,
    we must conclude, that Johnny Untinas is the
    greatest QB of all-time.

12
Appeal to Ignorance
  • When the premises of an argument state that
    nothing has been proved one way or the other
    about something, and the conclusion then makes a
    definite assertion about that thing.
  • Example The Hawks have tried ever year to make
    the NBA Championship, and yet they have never
    made it. Therefore, the Hawks are not a good NBA
    team. (that changes this year!)

13
Hasty Generalization
  • Is a fallacy that affects inductive
    generalizations. The fallacy occurs when there
    is a reasonable likelihood that the sample is not
    representative of the group.
  • Example After driving my new Jeep Wrangler for
    two days I realized the Jeep Wrangler is the
    best car ever invited.

14
False Cause
  • Occurs whenever the link between premises and
    conclusion depends on some imagined causal
    connection that probably does not exist.
  • Example During the first three quizzes all the
    people who made 20 out of 20 ate breakfast. So,
    before the next quiz every one should eat
    breakfast.

15
Slippery Slope
  • Is a variety of the false cause fallacy. It
    occurs when the conclusion of an argument rests
    upon an alleged chain reaction and there is not
    sufficient reason to think that the chain
    reaction will actually take place.
  • Dont touch that cookie! Next, youll want the
    cake, the pie, the fudge, and the ice cream.
    Youll gain a ton!

16
Weak Analogy
  • Is committed when the analogy is not strong
    enough to support the conclusion that is drawn.
  • Harry is a good student because he studies hard,
    prepares a schedule, and is smart. Jewls is a
    good student. She also studies hard, prepares a
    schedule, therefore she is probably smart.

17
Begging the Question
  • Is committed whenever the arguer creates the
    illusion that inadequate premises provide
    adequate support for the conclusion by leaving
    out a key premise, by restating the conclusion as
    a premise, or by reasoning in a circle.
  • Cheating is morally wrong. That being the case
    copying someones take-home quiz is morally
    wrong.

18
Complex Question
  • Is committed when a single question that is
    really two questions is asked and a single answer
    is then applied to both questions. Ever question
    presumes the existence of a certain condition.
  • Have you quit drinking? You answered yes,
    therefore you used to be an alcoholic.

19
False Dichotomy
  • Is committed when a disjunctive premise presents
    two unlikely alternatives as if they were the
    only available, and the arguer then eliminates
    the undesirable alternative, leaving the
    desirable one as the conclusion.
  • Either you let me drive your car or I will never
    speak to you again. Dont you want to let me
    drive your car.

20
Suppressed evidence
  • Explain that a cogent argument is an inductive
    argument with good reasoning and true premises
    the requirement of true premises includes the
    proviso that the premises not ignore some
    important pieces of evidence that out weight the
    presented evidence and in tells a very different
    conclusion.
  • Most professors at CCSU are easy to talk to about
    grades or any academic issues. Therefore,
    students should go talk to their professors
    before, during, or after class.

21
Equivocation
  • Occurs when the conclusion of an argument depends
    on the fact that a word or a phrase is used,
    either explicitly or implicitly, in 2 different
    senses in the argument.
  • A whale is a mammal. Therefore, a large whale is
    a large mammal.

22
Amphiboly
  • Occurs when the arguer misinterprets an ambiguous
    statement and then draws a conclusion based on
    this faulty interpretation.
  • Professor Brown said she was going to give an
    exam in Biology covering the causes of cancer.
    Therefore, there must be a lot of cancer cases in
    that class.

23
Composition
  • Occurs when it is argued that because the parts
    have a certain attribute, it follows that has a
    whole has the same attribute.
  • Gordon likes coke. He also likes beer.
    Therefore, he would like coke mixed with beer.

24
Division
  • Is the exact reverse of composition.
  • The National Association of Basketball Coaches
    is over fifty years old. Coach Baldwin is a
    member therefore he must be over fifty years old.
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