Philosophy › Section E · Logic and reasoning › Topic E.3
Arguments, validity, and soundness
An argument asks you to accept a conclusion for stated reasons. Judging one well means asking two separate questions, whether the reasons support the conclusion and whether the reasons are true, and validity and soundness give those questions exact form.
In this topic
- What an argument is
- Finding the parts
- Unstated premises
- Worked example: putting an argument in standard form
- Two questions: logic and truth
- Validity
- Soundness
- The four combinations
- Worked example: a truth-table test
- Worked example: refuting by logical analogy
- Common mistakes to avoid
- Key takeaways
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