Nuts and Bolts 009: Validity and Soundness

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“You make a valid point.” Have you ever heard anyone say this? When people say this they probably mean something like “you make a good point,” but when you enter the world of philosophy, you realise that the word “valid” is reserved for a different purpose. Similarly, in everyday speech when someone says “He has convinced me, because he made a valid argument,” they probably mean that someone has made a convincing argument. But in logic, the fact that an argument is valid certainly doesn’t indicate that it’s persuasive – or even good. Continue reading “Nuts and Bolts 009: Validity and Soundness”