Logical fallacies Flashcards

1
Q

premise

A

the assumptions that logical deductions are based on

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2
Q

rationalism

A

school of philosophy which holds that reason is the most important source of knowledge

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3
Q

falacies

A

invalid patterns of reasoning

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4
Q

syllogism

A

a deductive argument with 2 premises, a conclusion, 3 terms that are repeated twice, and quantifiers

[quantifier] things in group A are in group B
[quantifirer] things in group C are part of group A
Therefore [quantifier] things in group C are part of group B

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5
Q

quantifiers

A

words which tell us the quantity that is being referred to in a syllogism (eg. all, some, no)

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6
Q

truth

A

a property of statements concerned with what is or is not the case

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7
Q

validity

A

a property of arguments concerned with whether conclusions follow from premises

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8
Q

belief bias

A

the tendency to believe that an argument is valid simply because we agree with the conclusion

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9
Q

enthememe

A

an incomplete argument where one premise is assumed to be obvious

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10
Q

induction

A

reasoning that goes from specific to general truths

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11
Q

deduction

A

reasoning that goes from the general to the particular

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12
Q

inductive inference

A

generalizing from the observed to the unobserved

a generalization from “all observed A are B” to “all A are B”

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13
Q

hasty generalisations

A

generalizing form insufficient evidence

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14
Q

confirmation bias

A

people tend to remember only evidence that supports their beliefs

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15
Q

post hoc ergo propter hoc

A

assuming that because B follows A, then A must be the cause of B

(not valid)

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16
Q

causation vs correlation

A

causation is the direct cause of an event, and correlation is connection between two events

17
Q

ad hominem fallacy

A

attacking or supporting the person making an argument rather than the argument itself

18
Q

vested interest

A

a personal stake or involvement in an undertaking or state of affairs

19
Q

circular reasoning

A

assuming the truth of something that you are supposed to be proving

aka. vicious circle, begging the question

20
Q

special pleading

A

making an exception in your own case that you would not find acceptable if it came from someone else

21
Q

equivocation

A

when a word is used in two different senses in an argument

22
Q

argument ad ignorantiam

A

claiming that something is true on the grounds that there is no evidence to disprove it

23
Q

false analogy

A

assuming that because two things are similar in some respects they must also be similar in some further respect

24
Q

false dilemma

A

assuming that only two alternatives exist when there is actually a wider range of options

25
Q

binary thinking

A

the tendency to divide things into two types and see the world in black and white terms

26
Q

loaded questions

A

a question that contains a built-in assumption that has not been justified and may be false

27
Q

loaded statemetns

A

statements that contain build-in assumptions

28
Q

what are the “10 deadly fallacies”?

A

ad ignorantiam
hasty generalizatrion
post hoc ergo propter hoc
ad hominem
circular reasoning
special pleading
equivocation
false analogy
false dilemma
loaded question