Chapter 8 Review Flashcards

1
Q

What is the definition of logic?

A

Logic is the science of right thinking

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2
Q

What are the two main branches of logic

A

formal or “minor” logic; material or “major” logic

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3
Q

Define truth

A

correspondence to reality

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4
Q

Define validity

A

when the conclusion follows logically from the premises

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5
Q

Define soundness

A

when all the premises are true and the argument is valid

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6
Q

What is the purpose of formal logic?

A

to lead us from one truth to another

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7
Q

List the three acts of the mind involved in logic and their corresponding verbal expressions.

A

Simple apprehension - term; judgement - proposition (or statement); deductive inference - syllogism

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8
Q

What are the three things associated with simple apprehension?

A

sense perception; mental image; concept

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9
Q

Give a definition of sense perception

A

the act of seeing or hearing or smelling or tasting or touching

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10
Q

Give the definition of mental image

A

the image of an object formed in the mind as a result of a sense perception of that object

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11
Q

Give the definition of simple apprehension

A

an act by which the mind grasps the concept or general meaning of an object without affirming or denying anything about it

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12
Q

List the three acts of the mind involved in logic and their corresponding verbal expressions.

A

Simple apprehension - term; judgement - proposition (or statement); deductive inference - syllogism

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13
Q

Name the five elements represented by a concept

A

substance, material, living, sentient, rational

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14
Q

What is the extension concept ‘man’?

A

all the men there are, ever were, and ever will be

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15
Q

How do you find the comprehension of a concept?

A

List the notes (or Porphyrian Tree categories)

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16
Q

What is the relationship between extension and comprehension?

A

the greater the comprehension a concept has, the less extension it has; and the more extension it has, the less comprehension

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17
Q

What does sentient mean?

A

it has senses such as sight, hearing, etc.

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18
Q

What does material mean?

A

it has a body, rather than being purely spiritual - like angels

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19
Q

What does substance mean?

A

It is something rather than nothing

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20
Q

What are the two properties of terms

A

signification and supposition

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21
Q

Give a definition of term

A

a word or group of words that verbally expresses a concept

22
Q

What are three ways terms can be divided according to signification?

A

univocal terms; equivocal terms; analogous terms

23
Q

What are univocal terms?

A

terms that have exactly the same meaning no matter when or how they are used

24
Q

What are equivocal terms?

A

terms that, although spelled and pronounced exacly alike, have entirely different and unrelated meanings

25
What are analogous terms?
terms that are applied to different things, but have related meanings
26
What is material supposition?
the use of a term according to its verbal existence
27
What is logical supposition?
the use of a term according to its mental or logical existence
28
What is real supposition?
the use of a term according to its real or actual existence
29
What is the definition of judgement?
the act by which the intellect unites by affirming, or separates by denying
30
What does a judgment unite (or separate)?
judgement unites or separates two concepts
31
What is the definition of proposition?
a sentence that expresses truth or falsity
32
What are three elements of any proposition?
the subject-term; the predicate-term; the copula
33
Explain what the subject-term is
the verbal expression of the subject of a judgement
34
Explain with the predicate-term is
the verbal expression of the predicate of a judgement
35
Explain what the copula is
the word in the proposition that connects or relates the subject to the predicate
36
What are the four components of a proposition?
quantifier, subject-term, predicate-term, copula
37
Name and describe the four basic types of statements
A: All S is P; I: Some is is P; E: No S is P; O: Some S is not P
38
The quality of a proposition has to do with whether it is __ or \_\_.
affirmative; negative
39
What type of statements are said to be affirmative?
sentences that affirm something to be true about the subject; A and I statements
40
What type of statements are said to be negative?
sentences that deny something about the subject; E and O statements
41
The quantity of a proposition is either ___ or \_\_\_.
universal; particular
42
What type of statements are said to be universal
statements that confirm or deny something about all the members in a group; A and E
43
What type of statements are said to be particular
statements that confirm or deny something about only some of the members in a group; I and O
44
What are the two kinds of relationship statements can have to one another.
opposition; equivalence
45
What are the four ways A, I, E, and O statements can be related to one another in opposition
contradictory, contrary, subcontrary, subalternate
46
Which two pairs of statements are contradictory?
A and O; E and I
47
Which types of statements are contrary?
A and E
48
Which types of statements are subcontrary?
I and O
49
Which types of statements are subalternate
A and I; E and O
50
Give the Subject-term and predicate-term for each type of statement
A - distributed (d) - undistributed (u); I- undistributed (u) - undistributed (u); E - distributed (d) - distributed (d); O - undistributed (u) - distributed (d)
51
What are the three aspects of logic?
apprehension, judgment, and deductive inference