PART I. For each of the following arguments, check all the boxes that apply.
1. (2.5 points)
1. Premise: All frogs are mammals.
2. Premise: All mammals have wings.
3. Conclusion from 1 and 2: Therefore, all frogs have wings.
This argument:
- has all true premises
- has a true conclusion
- is valid
- is sound
2. (2.5 points)
1. Premise: All frogs are amphibians.
2. Premise: Some amphibians are green.
3. Conclusion from 1 and 2: Therefore, some frogs are green.
This argument:
- has all true premises
- has a true conclusion
- is valid
- is sound
3. (2.5 points)
1. Premise: All poodles are mammals.
2. Premise: All dogs are mammals.
3. Conclusion from 1 and 2: Therefore, all poodles are dogs.
This argument:
- has all true premises
- has a true conclusion
- is valid
- is sound
4. (2.5 points)
1. Premise: All frogs are amphibians.
2. Premise: Some frogs are green.
3. Conclusion from 1 and 2: Therefore, some amphibians are green.
This argument:
- has all true premises
- has a true conclusion
- is valid
- is sound