Segment 1 Flashcards

1
Q

argument

A

a group of statements in which the conclusion is claimed to follow from the premises

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2
Q

statement

A

a sentence that is either true or false

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3
Q

truth value

A

every statement has a truth vale (either true or false )

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4
Q

logic

A

the study of reasoning

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5
Q

inference

A

the reasoning process expressed by an argument

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6
Q

proposition

A

the information content r. meaning of a statement

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7
Q

statements of argument

A
  1. logic
  2. inference
  3. proposition
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8
Q

the door is closed =porta eta fechada

A

t

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9
Q

sentence with truth value (either true or false)

A

the door is open =statement

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10
Q

compare sentences without truth values

A
  1. is the door open? question
  2. close the door now demand
  3. please close the door request
  4. lets close the door statement
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11
Q

arguments contain premises in support of a conclusion

A

we should boycott that company. they have been fond guilty of producing widgets that they knew were faulty and causing numerous injuries

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12
Q

conclusion and premises indicators hep us identify arguments

A

since they have been found guilty of producing widgets that they knew were faulty, and that cause numerous injuries, we should therefore boycott that company

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13
Q

conclusion indicators

A
therefore 
consequently 
it proves that 
thus 
in conclusion 
suggest that 
so 
it follows that 
implies that 
hence 
we can infer that 
we can conclude that
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14
Q

premise indicators

A
because 
since 
given that 
assuming that 
as shown by 
for reasons that 
as indicated by 
seeing that 
it follows that
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15
Q

inferential claim

A

a passage makes an inferential claim when it expresses a reasoning process

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16
Q

compare

A

unauthorized cars will be towed (a warning not an argument)

given that your car is unauthorized vars will be towed at the owners expense, your car will be towed (an inferential claim, an argument)

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17
Q

explanation

A

use because to provide reasons for how an event occurred (an already accepted fact)

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18
Q

compare

A
  1. because you started lifting weights without first getting a physical checkup, you will probably injure your back
  2. your back injury occured because you lifted weights without first getting a physical checkup
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19
Q

compare

A

argument:
(premise) because you started lifting wrights without first getting a phyla checkup, (conclusion) you will probably injure your back

explanation:
your back injury occured because you lifted weights without first getting a physical checkup (an already accepted fact)

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20
Q

truth value analysis

A

determines if the information in the remised is accurate, correct or true (is it a true or false statement)

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21
Q

logical analysis

A

determines the strength with which the presumes support the conclusion (is it a valid or invalid argument)

premises:
1. it is raining
2. when it rains games are canceled

conclusion:
1. there fore the game is canceled

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22
Q

deductive argument

A

one in which it is claimed that

  1. the conclusion follows necessarily from the premise
  2. true premises make it impossible for the conclusion to be false
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23
Q

inductive argument

A

one in which it is claimed that

  1. the premises make the conclusion probable
  2. true premises make it improbable for the conclusion to be false
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24
Q

key words/phrases

A

deductive: necessarily, definitely, absolutely
inductive: probably, likely, unlikely, improbable, plausible, implausible

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25
strength of argument
deductive: conclusion necessarily true indicative: conclusion only probably true
26
types of arguments
deductive: mathematics, geometry, definitions inductive: legal, analogical, moral, statistical, causal, scientific
27
logic
the systematic use of methods and principles to analyze, evaluate, and construct arguments
28
argument
1. a group of statements in which the conclusion is claimed to follow from the premise 2. arguments can have more than one premise but only one conclusion
29
statement
a sentence that is either true or false
30
truth value
every statement has a truth value either true or false
31
proposition
the information content meaning of a statement
32
sentences with truth value example
the door is open
33
sentences without truth value
1. is the door open: question 2. close the door: command 3. please close the door: request 4. lets close the door: statement
34
the purpose of a premise
to support the conclusion
35
the function of the conclusion
serve as the main point of the argument
36
inferential claim
a passage makes an inferential claim when it expresses a reasoning process
37
most college freshmen have part time jobs. sue is a college freshman. thus, sue has a part time job. answer:
answer:
38
difference between inductive and deductive arguments
deductive has no room for uncertainty inductive does in deductive if the premise is true it is impossible for the conclusion to be false inductive arguments are likely true based on the facts of the premise (establishes a degree of probability)
39
truth analysis
1. concerns statements | 2. a statement is either true or false
40
logical analysis
1. concerns arguments | 2. the relationship between premise and conclusion provides the inferential strength of an argument
41
logical analysis
tells us whether a deductive segment is valid or invalid
42
laid deductive argument
true premises make it impossible for conclusion to be false
43
invalid deductive argument
even if the premises is true it is still possible for the conclusion to be false
44
truth analysis
tells use whether a deductive argument is sound or unsound
45
sound argument
the argument is valid and the premises are, in fact, true
46
unsound argument
the argument is invalid or at least one premise is false
47
valid but unsound argument
(First premise) all elephants can fly. (Second premise) Mikhail Kulakov is an elephant. (Conclusion) Therefore, Mikhail Kulakov can fly.
48
Why was the argument before valid but not sound?
if the two premises were true then the conclusion would be but there is no truth value to the argument
49
how to fix the elephant issue to make it logical and sound
premise 1: if all elephants could fly premise 2: and if M. Kulakov was an elephant conclusion: M. Kulakov would be able to fly
50
validity is recognizing a correct form of an argument, soundness is admitting that the form is correct and the premises are true to fact
t
51
in a valid deductive argument premises necessarily lead to one conclusion on
t
52
a statement is a sentence that must be true
false
53
a proposition is the information content imparted by a statement, or, simply put, its meaning
true
54
a deductive argument is one in which it is claimed that the conclusion follows necessarily from the premises
true
55
an inductive argument os one in which it is claimed that the premises make the conclusion probable
true
56
a valid deductive argument is one where, assuming the premises are true, it is sometimes possible for the conclusion to be false
true
57
a valid argument can be an unsound argument
true
58
an invalid argument can be a sound argument
false
59
a strong inductive argument is such the If the premises are assumed to be true, then the conclusion is probably true
true
60
a weak inductive argument is an argument such that either (a) if the premises are issued to be true, then the conclusions probably not true, or (b) a probably true conclusion does not follow from the premises
true
61
enthymemes
arguments with missing premises, missing conclusions or both
62
the principle of charity
sense of fairness and an ope mind, if we expect others to analyze our arguments in a reasonable way we should do the same
63
arguments are
neither true nor false
64
statements are
neither valid nor invalid nor strong nor weak
65
Inductive arguments are used when there is an unknown, where there is a lack of information
t
66
an opaque jar is a jar you cannot see through
t
67
an inductive argument is cogent when the argument is strong and the premises are true
true
68
an inductive argument is uncogent only when the premises are false
false