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“No you” is actually a valid point in a disagreement
(lemmy.world)
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this post was submitted on 20 Jan 2024
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Unpopular Opinion
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Given a valid structure, true premises must necessarily lead to a true conclusion. A fallacy is an invalid structure; therefore, you cannot know whether or not the conclusion is true. If you can't know the truth value of the conclusion, you wouldn't be correct to reject their argument.
Using the go to example: Plato argues P1) All men are mortal, P2) Socrates is a man, C) Socrates is mortal. Valid structure, sound premises, the conclusion must be true.
Using the smoking example: P1) Person A claims smoking is dangerous, P2) Person A smokes, C) Smoking isn't dangerous.
This argument is invalid in structure because Premise 2 is fallacious. Premise 1 doesn't connect to Premise 2 to lead to the conclusion. Given no additional information, you would not be able to ascertain the truth value of the conclusion, it may or may not be true using this deductive argument.