Chapter 2 - Lesson 2 Flashcards

1
Q

Conditional Statement

A

A statement that is written in if-then form.

Ex: If today is Friday, then tomorrow is Saturday.

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2
Q

Hypothesis

A

The phrase following word if.

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3
Q

Conclusion

A

The phrase following word then.

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4
Q

(Identity p and q)

If the forecast is rain, then I will bring an umbrella.

A
p = Forecast is rain.
q = I will bring an umbrella.
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5
Q

(Identity p and q)

A number is divisible by 10 if its last digit is 0.

A
p = A number is divisible by 10.
q = Its last digit is 0.
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6
Q

(Write in if-then form)

A mammal is a warm-blooded animal.

A

If an animal is warm-blooded, then it is a mammal.

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7
Q

(Write in if-then form)

Verticle angles share a vertex.

A

If the angles are vertical, then they will share a vertex.

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8
Q

(Write in if-then form)

The day after Monday is Tuesday.

A

If the day is Monday, then tomorrow is Tuesday.

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9
Q

(Write in if-then form)

The sum of the measures of two supplementary angles is 180 degrees.

A

If the angle measures 180 degrees, then it’s a supplementary angle.

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10
Q

(True or False)

If a woman is German, she is European.

A

True

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11
Q

(True or False)

If a number is divisible by 3, then it is odd.

A

False

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12
Q

What does ~ mean?

A

“not p” or not or opposite

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13
Q

Conditional

A

p–>q - If p, then q.

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14
Q

Converse (Flip)

A

q–>p - If q, then p

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15
Q

Inverse

A

~p–> ~q - If not p, then not q.

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16
Q

Contrapositive

A

~q–> ~p - If not q, then not p.

17
Q

What is the converse of this sentence?

If today is Friday then tomorrow is Saturday.

A

If tomorrow is Saturday, then today is Friday.

18
Q

What is the inverse of this sentence?

If today is Friday then tomorrow is Saturday.

A

If today isn’t Friday, then tomorrow isn’t Saturday.

19
Q

What is the contrapositive of this sentence?

If today is Friday then tomorrow is Saturday.

A

If tomorrow isn’t Saturday, then today isn’t Friday.