Am I Logical?

1. Valid arguments

A) infer their conclusions
B) may not have false conclusion
C) have true premises
D) may have false conclusions

2. All men are mortal

A) is not a proposition
B) implies there are men
C) is a contradiction
D) implies all men are mortal

3. the argument: if p then q, q, therefore p

A) is sound
B) is valid
C) is a categorical argument
D) is invalid

4. in a valid argument

A) if the premises are all true the conclusion must be true
B) no conclusion may be false
C) all premises are necessarily true
D) no premise may be false

5. there are ___ quantifiers for categorical syllogisms

A) three
B) two
C) one
D) four

6. Some men are swimmers. Some swimmers are Olympic athletes. Some men are Olympic athletes

A) is sound
B) is invalid
C) is not a syllogism
D) is valid

7. "implies" and "infers"

A) are interchangeable
B) are equivalent
C) have differing conotations
D) are meaningless

8. "and/or" is _____ with "or"

A) the converse
B) contradictory
C) opposite
D) logically equivalent

9. logic is the science of

A) thinking
B) truth
C) fallacies
D) implication

10. a proposition

A) may be both true and false
B) is either true or false
C) is an assertion
D) is any statement

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