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Am I Logical?
Contributed by: Koepsell
  • 1. Valid arguments
A) infer their conclusions
B) may not have false conclusion
C) may have false conclusions
D) have true premises
  • 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 conclusion may be false
B) all premises are necessarily true
C) if the premises are all true the conclusion must be true
D) no premise may be false
  • 5. there are ___ quantifiers for categorical syllogisms
A) one
B) two
C) four
D) three
  • 6. Some men are swimmers. Some swimmers are Olympic athletes. Some men are Olympic athletes
A) is valid
B) is not a syllogism
C) is invalid
D) is sound
  • 7. "implies" and "infers"
A) are meaningless
B) have differing conotations
C) are equivalent
D) are interchangeable
  • 8. "and/or" is _____ with "or"
A) logically equivalent
B) opposite
C) the converse
D) contradictory
  • 9. logic is the science of
A) thinking
B) fallacies
C) implication
D) truth
  • 10. a proposition
A) is either true or false
B) is an assertion
C) is any statement
D) may be both true and false
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