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Am I Logical?
Contributed by: Koepsell
  • 1. Valid arguments
A) have true premises
B) infer their conclusions
C) may not have false conclusion
D) may have false conclusions
  • 2. All men are mortal
A) is a contradiction
B) implies all men are mortal
C) is not a proposition
D) implies there are men
  • 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) four
B) one
C) two
D) three
  • 6. Some men are swimmers. Some swimmers are Olympic athletes. Some men are Olympic athletes
A) is invalid
B) is not a syllogism
C) is sound
D) is valid
  • 7. "implies" and "infers"
A) are meaningless
B) are interchangeable
C) are equivalent
D) have differing conotations
  • 8. "and/or" is _____ with "or"
A) contradictory
B) logically equivalent
C) the converse
D) opposite
  • 9. logic is the science of
A) truth
B) implication
C) thinking
D) fallacies
  • 10. a proposition
A) is either true or false
B) may be both true and false
C) is any statement
D) is an assertion
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