## Logical Exercises (2)

Brief guide to your logical competence

Please answer the following question in all seven arguments below:

Question 2: Is this a SOUND argument? If yes, why?

Please remember that, a SOUND argument is a VALID argument with true premises.

Argument type 7: - False Premises, True Conclusion

Cats are birds.

Tigers are birds.

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Therefore, tigers are cats.

Argument type 3: - True Premises, True Conclusion

Cats are mammals.

Tigers are mammals.

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Therefore, tigers are cats.

Argument type 4: - False Premises, False Conclusion

Dogs are cats.

Cats are birds.

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Therefore, dogs are birds.

Argument type 5: - False Premises, False Conclusion

Cats are birds.

Dogs are birds.

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Therefore, dogs are cats.

Argument type 6: - False Premises, True Conclusion

Cats are birds.

Birds are mammals.

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Therefore, cats are mammals.

Argument type 2: - True Premises, True Conclusion

Cats are mammals.

Tigers are cats.

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Therefore, tigers are mammals.

Argument type 1: - True Premises, False Conclusion

Cats are mammals.

Dogs are mammals.

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Therefore, dogs are cats.