Logical Flashcards

1
Q

Justification

A

Aim to convince people of your oponion

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2
Q

Explanation

A

Aim to show why something happens

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3
Q

Argument

A

connected series of sentences, statements or propositions, that are intended to give reasons of some kind.

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4
Q

Logic

A

The study of distinguishing successful and unsuccessful argument

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5
Q

Premise markers

A

Since, because, for, as, given that

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6
Q

Conclusion markers

A

Therefore, then, thus, hence

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7
Q

Discounting

A

Nuspeti kritika ir ja atmest

anticipating criticism and dismissing it.

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8
Q

Guarding

A

Weakening the strength of your premises to guard it from attack

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9
Q

Sound

A

valid argument, which has true premises and true conclusion

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10
Q

Suppressed premise

A

Obvious facts (smoking is bad for your health)

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11
Q

Validity

A

If it is not possible that all premises are true but conclusion false
Conclusion must be true if all premises true

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12
Q

Deductive

A

Facts, neimanoma kad premises true o conclusion false (premises true, conclusion true)
Validity and soundness

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13
Q

Inductive

A

PROBABLY TRUE, retai buna true premises - false conclusion

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14
Q

Fallacy

A

argument that is logically incorrect.

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15
Q

. &. ~. X. C

A
C if
X or
~ not
. Therefore
& and
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16
Q

Slippery slope

A

Comparing categories with vague definitions (Kategorijų palyginimas su neaiškiais apibrėžimais)

o If you go out with that kind of guy, you will get pregnant and end up dropping out of college.
o Either you stay in school or you won’t get a good job.

17
Q

Equivocation

A

using a word with 2 different meanings.

o Man is the only rational animal, and no woman is a man, so women are not rational.
o Commonly used: freedom, democracy, equality.

18
Q

Ad hominem

A

Uzpuolamas zmogus, o ne argumentas
o Bob has a criminal, so he is the one who stabbed the lady.
o Must look at the relevant information such as criminal records etc.

Joey says …
Joey is stupid
So x is false.

19
Q

Guilt by assocation

Ad hominem

A

Ginčas užpuola asmenį dėl to, kad yra panašumo tarp argumentuojančio asmens ir kitų argumento šalininkų požiūrių.

Joe states that x is true.
Mary also believes that x is true and she is dumb. Therefore, Joe is dumb and wrong.

20
Q

Ad hominem

Tu Quo Que

A

Attacking the opponent’s own personal behavior as being inconsistent with the argument’s conclusion(s). (hypocryte)

Your mom tells you not to smoke because it is bad for you, while smoking a cigarette

21
Q

Appeal to authority

A

Zmones kurie apsimeta expertais
o Doctors recommends using this medicine.
o Need to be more specific with the authorities, can’t always trust them 100% with their authority.

22
Q

Genetic

A

fallacy made based solely on someone’s or something’s history, origin, or source rather than its current meaning or context.

pagrįstas tik kažkieno ar kažko istorija, kilme ar šaltiniu, o ne dabartine prasme ar kontekstu.

Everything, that Nazis believed in, must be not true.

23
Q

Straw men

A

misrepresenting an argument so it’s easier to attack. (neteisingai pateikiant argumentą, kad būtų lengviau pulti)

o People who don’t support abortion are pro – death penalty.
o Twisting someone’s words in order to get a new, absurd argument, which is easier to attack.

24
Q

Circular argument

A

Relying on previous argument

o Using logic is important, because using logic is important.

25
Q

Begging the question

A

Leaving a key premise out of the argument while creating the illusion that nothing more is needed to establish the conclusion.

Murder is morally wrong. This being the case, it follows that abortion is morally wrong.”

26
Q

Appeal to emotion

A

You should let me pass this exam because I have cancer and I’m going to be in a coffin in 6 months.”

27
Q

Refutation

A

Showing that another person’s argument is incorrect

28
Q

Ways to attack:

A

1.Attack the premises
We want to show that they are false
o ‘’What doesn’t kill you makes you stronger’’ – something might break you mentally.’

2.Showing that the argument leads to absurd results
o ‘’Genetics has nothing to do with intelligence’’ – then someone with Down syndrome can be trained to be of the same intelligence as Einstein.

3.Parallel reasoning
o For a woman to get pregnant she has to have sex, this woman had sex, so she is pregnant.

29
Q

Biased samples

A

randomly picked, but put in the right segregation.

30
Q

Cogency

A

quality of being clear, logical and convincing.

31
Q

Red herrings

A

intention to mislead of distract from the argument.

32
Q

De-fluffing the argument

A

getting rid of the information which has no value to the argument

33
Q

Cognitive dissonance

A

when you feel that something is not right.

34
Q

Assuring

A

The arguer may try to assure the listener that the premise is true.
• Uses of experts
• Assuring language
• Abusing the audience

useful if there’s questionable truth value of a premise (4 out of 5 dentists recommend this gum).

35
Q

Guarding

A

weakening the argument to prevent the attack (it’s likely, I believe, it might be).