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Does a valid argument have a true conclusion?

Posted on 2021-12-19 by Dominique Stacey

Does a valid argument have a true conclusion?

FALSE: A valid argument must have a true conclusion only if all of the premises are true. Since it is valid, the argument is such that if all the premises are true, then the conclusion must be true. A sound argument really does have all true premises so it does actually follow that its conclusion must be true.

What is the difference between valid and invalid argument?

An argument is valid means that its form is valid. If there is a critical row in which the conclusion is false, then the argument is invalid.

Can a deductively valid argument have a false conclusion?

A valid deductive argument cannot have all false premises and a true conclusion. A valid deductive argument can have all false premises and a false conclusion. 9. Whether an argument is valid has nothing to do with whether any of it’s premises are actually true.

What logical conclusion can you draw about an argument that is valid but has a false conclusion?

What logical conclusion can you draw about an argument that is valid but has a false conclusion? This argument must have at lease one false premise. Is is possible for a valid argument to have true premises and a false conclusion? It is impossible.

How do you know if an argument is valid?

Valid: an argument is valid if and only if it is necessary that if all of the premises are true, then the conclusion is true; if all the premises are true, then the conclusion must be true; it is impossible that all the premises are true and the conclusion is false.

What makes a logical premise strong?

Inductive Strength An inductive argument is inductively strong when you have the following: If all its premises were true, then it its highly likely or probable that its conclusion would also true. “Strong” and “weak” are the terms used to describe the possibilities for the logical strength of inductive arguments.

What does unsound argument mean?

Valid arguments can go wrong by being unsound: an argument is unsound when it is. either invalid or has one or more false premises; so, a valid argument is unsound if and only if it has one ore more false premises. / Sound arguments can also go wrong by the premises being insufficiently supported.

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