What rule of inference is used in each of these arguments?
- Kangaroos live in Australia and are marsupials. There-fore, kangaroos are marsupials.
- 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.
- 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.
- Steve will work at a computer company this summer.Therefore, this summer Steve will work at a computer company or he will be a beach bum.
- If I work all night on this homework, then I can answer all the exercises. If I answer all the exercises, I will understand the material . Therefore ,If I work all night on this homework, Then I will understand the material.
