What is logical validity and how is validity determined in a formal argument

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I’m in a Logic class and this seems like a really simple concept but all the explanations given are so wordy that I can’t wrap my head around it.

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Anonymous 0 Comments

Yeah, this sort of thing tends to get wordy. The simplest way I can come up with is that a valid logical argument demonstrates the truth of the conclusion through it’s premises. In other words, it’s sound or just good logic.

Where it gets wordy is when you get into the fact that it doesn’t have to be true to be valid. Validity is only based on whether the premises lead to the conclusion or not.

So I could start with a flawed premise like “All men have x-ray vision.” Then go from there: “I’m a man. Therefore I have x-ray vision.”

Is that true? Of course not because it starts with a false premise. But it is valid logic because it leads to a logically sound conclusion.

I hope that makes sense.

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