Validity and Truth
Explore the difference between truth and validity in logic. Understand why propositions are true or false while arguments are valid or invalid, and learn how these concepts relate within logical reasoning to form sound arguments.
We'll cover the following...
We'll cover the following...
Relation between truth and validity
Truth and validity are qualitatively different in meaning, and it’s a categorical mistake to confuse or use them interchangeably. Hopefully, budding logicians like you won’t make that mistake after this lesson. It’s important to remember the following:
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Propositions are true/false.
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Arguments are valid/invalid.
Propositions don’t use the currency of valid/invalid, and arguments aren’t discussed as true/false. ...