You should step back and read the chapter of an intro to logic textbook where the topic of validity vs soundness is discussed. It’s easy to use these terms in a

You should step back and read the chapter of an intro to logic textbook where the topic of validity vs soundness is discussed. It’s easy to use these terms in a way that expresses your intent. One nice thing about doing so is that an understanding of validity vs soundness, necessity vs sufficiency, and the truth tables themselves is all you need to understand all the formal fallacies. All you need to understand about the informal fallacies is, if someone appears to need to discuss informal fallacies, what they really need is a hug. Or a kick in the pants.