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Am I Logical?
Contributed by: Koepsell
  • 1. Valid arguments
A) may not have false conclusion
B) have true premises
C) may have false conclusions
D) infer their conclusions
  • 2. All men are mortal
A) implies there are men
B) is a contradiction
C) is not a proposition
D) implies all men are mortal
  • 3. the argument: if p then q, q, therefore p
A) is invalid
B) is valid
C) is sound
D) is a categorical argument
  • 4. in a valid argument
A) no premise may be false
B) no conclusion may be false
C) all premises are necessarily true
D) if the premises are all true the conclusion must be true
  • 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 not a syllogism
C) is valid
D) is invalid
  • 7. "implies" and "infers"
A) have differing conotations
B) are meaningless
C) are interchangeable
D) are equivalent
  • 8. "and/or" is _____ with "or"
A) the converse
B) contradictory
C) logically equivalent
D) opposite
  • 9. logic is the science of
A) fallacies
B) truth
C) implication
D) thinking
  • 10. a proposition
A) is any statement
B) may be both true and false
C) is an assertion
D) is either true or false
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