Practice question · Match the pairs
Match each term to its precise meaning.
- Valid
- Sound
- Formal fallacy
- Premise
- The premises cannot be true with the conclusion false
- Valid, and with premises that are actually true
- A claim offered in support of the conclusion
- An invalid pattern that resembles a valid one
Hints
- Two terms assess whole arguments and two name their parts or failures.
- One of these is strictly stronger than the other.
Show the answer
- Valid → The premises cannot be true with the conclusion false
- Sound → Valid, and with premises that are actually true
- Formal fallacy → An invalid pattern that resembles a valid one
- Premise → A claim offered in support of the conclusion
Why
Soundness is validity plus true premises, so every sound argument is valid but not conversely. Formal fallacies matter because their resemblance to valid forms is exactly what makes them persuasive.
Practise Arguments, Validity and Soundness
The app has 4 more questions on this lesson, and keeps your place in the course. Philosophy I is free to start.
More questions on Arguments, Validity and Soundness
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