Logic Exam 1

40 flashcardsby Kwame
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1
Inductive Argument
An argument with probabilist support
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Deductive Argument

An argument that claims the premises necessitate the conclusion
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Conditional Statement
An if-then statement
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Necessary Conditions

Something that you must need for conditional statement to be true
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Deductive Validity

Given a true premise it is impossible for conclusion to be false
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Deductive Invalidity

The conclusion does not follow necessarily from the premises
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Sound argument

A deductive argument that is valid with true premises
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Unsound argument

a deductive argument that is invalid, has one or more false premises, or both
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Strong inductive argument

given a true premise it is improbable that the conclusion is false
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Weak inductive argument

conclusion does not follow probably from the premises
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How do you determine invalidity of an argument?

Use a counter example
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Fallacy
Flaw in reasoning for an argument (not a false premise, needs to be more!)
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Formal Fallacy

a fallacy that may be identified by merely examining the form or structure of an argument
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Informal Fallacy

A fallacy that can be detected only by examining the content of an argument
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Appeal to Force

When the arguer threatens that something bad will happen if the listener does not agree with them.
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Appeal to Pity

When the arguer attempts to support a conclusion by evoking pity from the reader/listener
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Appeal to Fear
When the arguer makes you afraid of the consequences of not doing what they want
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Bandwagon arguement

When the arguer tells to the reader/listener to agree because everyone else agrees
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Appeal to Vanity
When the arguer uses the admiration of a famous figure as support to their claim
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Appeal to Snobbery

When the crowd that the arguer appeals to is a smaller group that is supposed to be superior in some way
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Appeal to tradition

When the arguers support states that it is better to agree because of tradition
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Adhominem, abusive

An argument against a person that shows abuse towards them
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Adhominem, circumstantial
An argument against a person due to the circumstances that benefit them
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Tu Quoque

When the arguer attempts to make another seem hypocritical to support their claim
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Accident

When a general rule is applied to a specific case it was not intended to cover
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Straw Man

When an arguer distorts an opponent's argument for the purpose of more easily attacking it
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Missing the Point

The premises of an argument do support a particular conclusion, but not the conclusion that the arguer actually draws
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Red Herring

When the arguer draws attention away from the main issue by introducing something irrelevant
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Hasty Generalization

When there is a reasonable likelihood that the sample is not representative of the group
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False Cause

When the link between the premise and conclusion is completely false
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Slippery Slope
When the conclusion of an argument rest on a chain reaction of insufficient reasoning
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Weak Analogy

When an analogy is not strong enough to support a conclusion that is drawn
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Begging the Question
When the arguer creates the illusion that inadequate premises provide adequate support for the conclusion. (mainly by restating a premise as conclusion, or reasoning in a circle)
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Complex Question
When two or more questions are asked in the guise of a single question and a single answer is then given to both of them.
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False Dichotomy

The consideration of only two extremes when there are other possibilities
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Suppressed Evidence

arguer ignores important evidence leading to a different conclusion
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Equivocation

When a writer uses the same term in two different senses in an argument.
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Amphiboly
a vagueness of grammar that disguises or alters meaning
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Composition

When it is argued that because the parts have a certain attribute, it follows that a whole has that attribute too
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Division

When it is argued that because a whole group has a certain attribute, all the parts of that whole have that attribute too
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