Concept explainers
What rule of inference is used in each of these arguments?
a) Kangaroos live in Australia and are marsupials. Therefore, kangaroos are marsupials.
b) It is either hotter than 100 degrees today or the pollution is dangerous. It is less than 100 degrees outside today. Therefore, the pollution is dangerous.
c) Linda is an excellent swimmer. If Linda is an excellent swimmer, then she can work as a lifeguard. Therefore, Linda can work as a lifeguard.
d) Steve work at a computer company this summer. Therefore, this summer Steve will work at a computer company or he be a beach bum.
e) If I work all night on this homework, then I can answer all the exercises. If l answer all the exercises, I will understand the material. Therefore, if I work all night on this homework, then I will understand the material.
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Discrete Mathematics and Its Applications ( 8th International Edition ) ISBN:9781260091991
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