a valid argument with true premises.

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Presentation transcript:

a valid argument with true premises. Soundness A sound argument is a valid argument with true premises.

Soundness A sound argument is a valid argument with true premises. Logic cannot study soundness because it can not (on its own) tell us what is true.

a valid argument with true premises. Soundness A sound argument is a valid argument with true premises. All dogs are mammals. All mammals are animals. All dogs are animals.

a valid argument with true premises. Soundness A sound argument is a valid argument with true premises. All dogs are mammals. All mammals are animals. All dogs are animals. This argument is valid. Its premises are true.

a valid argument with true premises. Soundness A sound argument is a valid argument with true premises. All dogs are mammals. All mammals are animals. All dogs are animals. This argument is valid. Its premises are true. So it is sound.

A valid argument with true premises. Soundness A sound argument is A valid argument with true premises.

A valid argument with true premises. Soundness A sound argument is A valid argument with true premises. Every sound argument is valid.

A valid argument with true premises. Soundness A sound argument is A valid argument with true premises. Every sound argument is valid. Every sound argument has a true conclusion. For more click here