Valid Argument

A valid argument is one where the conclusion must be true if the premises are true. Validity is about structure, not about whether the premises are actually true. An argument can be valid and still reach a false conclusion if a premise is false.

Example

"All cats can fly; Whiskers is a cat; so Whiskers can fly" is valid but not sound.

See also

• Sound Argument
• Deductive Reasoning
• Formal Logic

Back to the full glossary

Last updated October 12, 2026