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How well do you know Disjunctive and Hypothetical Syllogisms?
Note: you will need to refer to the Basic Inference handout for some questions.
1. Which best describes the following?
If M then N
a.
Hypothetical Statement
b.
Hypothetical Syllogism
c.
Disjunction
d.
Disjunctive Syllogism
2. Which best describes the following?
F or G
a.
Hypothetical Statement
b.
Hypothetical Syllogism
c.
Disjunction
d.
Disjunctive Syllogism
3. Which best describes the following?
Either K or I
a.
Hypothetical Statement
b.
Hypothetical Syllogism
c.
Disjunction
d.
Disjunctive Syllogism
4. Which best describes the following?
If Y then D
D
Therefore, Y
a.
Hypothetical Statement
b.
Hypothetical Syllogism
c.
Disjunction
d.
Disjunctive Syllogism
5. Which best describes the following?
M or P
not M
Therefore, P
a.
Hypothetical Statement
b.
Hypothetical Syllogism
c.
Disjunction
d.
Disjunctive Syllogism
6. Which best describes the following?
If O then not-V
O
Therefore, not-V
a.
Invalid Hypothetical Syllogism
b.
Valid Hypothetical Syllogism
c.
Invalid Disjunctive Syllogism
d.
Valid Disjunctive Syllogism
7. Which best describes the following?
not-C or P
C
Therefore, P
a.
Invalid Hypothetical Syllogism
b.
Valid Hypothetical Syllogism
c.
Invalid Disjunctive Syllogism
d.
Valid Disjunctive Syllogism
8. Which best describes the following?
If not-L then not-B
B
Therefore, L
a.
Invalid Hypothetical Syllogism
b.
Valid Hypothetical Syllogism
c.
Invalid Disjunctive Syllogism
d.
Valid Disjunctive Syllogism
9. Which best describes the following?
P or M
not-M
Therefore, P
a.
Invalid Hypothetical Syllogism
b.
Valid Hypothetical Syllogism
c.
Invalid Disjunctive Syllogism
d.
Valid Disjunctive Syllogism
10. Which best describes the following?
If T then C
not-T
Therefore, not-C
a.
Invalid Hypothetical Syllogism
b.
Valid Hypothetical Syllogism
c.
Invalid Disjunctive Syllogism
d.
Valid Disjunctive Syllogism
Rules of Validity
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