Logical Reasoning
6.3
(a) All swans that have been observed have been
white. Therefore, all swans are white.
(b) If it is raining, then the ground is wet. It is raining.
Therefore, the ground is wet.
(c) Smoking causes lung cancer. Therefore, I should
not smoke.
(d) All mammals have four legs. My dog is a mammal.
Therefore, my dog has four legs.
3.
In a syllogism, the term that appears in both premises
but not in the conclusion is called the:
(a) Major term
(b) Minor term
(c) Middle term
(d) Predicate term
4.
Which of the following represents a valid syllogism?
(a) All men are birds. John is a man. Therefore, John
is a bird. ...
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