Argument

Validity (logic)

Overview

logical correctness of an argument's steps, regardless of the truth of the premises

Overview adapted from Wikipedia (CC BY-SA 4.0; see the article history for authors).

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What shall we say of the validity of such processes?
John Dewey, Studies in Logical Theory
Names Validity several times; states what Validity is.
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The object of reasoning is to find out, from the consideration of what we already know, something else which we do not know. Consequently, reasoning is good if it be such as to give a true conclusion from true premises, and not otherwise. Thus, the question of validity is purely one of fact and not of thinking. A being the premises and B being the conclusion, the question is, whether these facts are really so…
Charles S. Peirce, Chance, Love, and Logic
States what Validity is; names Validity.
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Now such an argument is not hard to follow; and if it is granted that its premisses are true in fact, no one will deny that the conclusion must also be true. But it depends for its truth upon an instance of a general logical principle. The logical principle is as follows: 'Suppose it known that _if_ this is true, then that is true.
Bertrand Russell, The Problems of Philosophy
Close in meaning to Validity; the term itself is not named.
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