Form B Test 2 Flashcards

1
Q

What is a statement?

A

A sentence that is true or false

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2
Q

What are three types of sentences that are not statements?

A

questions
commands
nonsense

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3
Q

What is a tautology?

A

a statement that is true by logical structure.

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4
Q

Write a statement that is supported by authority.

A

Jesus was born in Bethlehem. (come up with your own)

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5
Q

Give an example of a self-contradiction:

A

(any answer of the form P and not P)

That person is a boy and not a boy.

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6
Q

Give an example of a self-report

A

I think camping is fun.

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7
Q

Give an example of a True by definition statement.

A

Patience is a virtue.

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8
Q

What are four relationships between statements?

A

consistency
implication
equivalence
independence

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9
Q

Is this statement consistent?

“My teacher wears glasses. / My teacher has poor eyesight.”

A

Yes

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10
Q

Is this statement consistent? “It snows every winter. / Some winters it does not snow.”

A

No

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11
Q

Is this statement consistent?

“You get up every morning / You could be a musician.”

A

Yes

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12
Q

Is this statement consistent?

“Some books are electronic devices. / No books are electronic devices.”

A

No

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13
Q

Does this first statement imply the second statement?

“Jack is Jill’s brother. / Jill has a brother.”

A

Yes

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14
Q

Does the first statement imply the second statement?

“Everybody loves me. / My mother loves me.”

A

Yes

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15
Q

Does the first statement imply the second statement?

“Jesus preached in Nazareth. / Jesus preached in Jerusalem.”

A

No

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16
Q

Does the first statement imply the second statement?

“No Jews are Gentiles / No Gentiles are Jews”

A

Yes

17
Q

Are these two statements logically equivalent?

“All humans are mammals / All mammals are humans”

A

No

18
Q

Are these two statements logically equivalent?

“Some teachers are parents. / Some parents are teachers.”

A

Yes

19
Q

Are these two statements logically equivalent?

“No rugs are carpets. / No carpets are rugs”

A

Yes

20
Q

Are these two statements logically equivalent?

“Tom has the measles. / Tom is ill.”

A

No

21
Q

Are these two statements logically independent?

“It is later than 1:00 pm / It is later than 2:00 pm”

A

No

22
Q

Are these two statements logically independent?

“Saturn is a planet. / Saturn was the Roman God of time.”

A

Yes

23
Q

Are these two statements logically independent?

“Some siblings are twins. / Some siblings are not twins.”

A

No

24
Q

Are these two statements logically independent?

“Jesus turned the water to wine. / Jesus performed miracles.”

A

No

25
Q

Can two statements be related by implication and inconsistency?

A

No

26
Q

In logic, what is a real disagreement?

A

Statements that cannot both be true; an actual inconsistency.

27
Q

What is an apparent disagreement, and how does it differ from a verbal disagreement?

A

An apparent disagreement is a difference in belief or opinion, but a verbal disagreement is caused by a difference in definition.

28
Q

Rewrite the statement so that it uses only the verb of being.

“I look to the sea”

A

I am a sea looker.

29
Q

Rewrite the statement so that it uses only the verb of being.

“The angels sang to the shepherds.”

A

The angels were singers to the shepherds.

30
Q

Rewrite the statement so that it uses only the verb of being.

“The president will take an oath.”

A

The president will be an oath taker

31
Q

Rewrite the statement so that it uses only the verb of being.

“Some carpenters do not preach the gospel.”

A

Some carpenters are not gospel preachers.