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Question:

Are some valid arguements cogent?



Best Answer - Chosen by Asker: No.. at least not in the sense that those terms are defined in a logic course.

If an argument meets the requirements for validity (i.e. it is necessary that if the premises are true, the conclusion cannot be false), then it is a deductive argument.

A valid deductive argument is then further tested for soundness. An argument is sound if it is valid with all true premises.

Cogency is a test for inductive arguments. An inductive argument is cogent if it is strong with all true premises. A valid argument is never considered for cogency. yes but what does that have to do with geneology Cogent and valid are synonyms. Most valid arguments are cogent.

Cogent: Appealing to the intellect or powers of reasoning; convincing.

Valid:
1. Well grounded; just: a valid objection.
2. Producing the desired results; efficacious: valid methods.
3. Having legal force; effective or binding: a valid title.
4. Logic
a. Containing premises from which the conclusion may logically be derived: a valid argument.
b. Correctly inferred or deduced from a premise: a valid conclusion.
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So, if you had a valid argument that didn't appeal to the intellect (One that appealed to the heart, perhaps) it would be valid but not cogent.

Faith in God, for instance, works wonders, so it is "Producing the desired results; efficacious" but it "appeals" to the heart and soul, not the intellect, so, in a strict sense it isn't cogent. Romantic love appeals to the heart too; arguments of "Marry me because I'll love you forever" are not cogent by the strict definition.

You undoubtedly posted this in Genealogy, even though it has nothing to do with dead ancestors, because you knew that we genealogists are warm, witty, well-informed, polite, intelligent and devilishly handsome.