FALSE: A valid argument must have a true conclusion only if all of the premises are true. So it is possible for a valid argument to have a false conclusion as long as at least one premise is false. 2. A sound argument must have a true conclusion.
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Can a conclusion be logically valid?
Loosely speaking, if the author’s process of reasoning is a good one, if the premises actually do provide this sort of justification for the conclusion, then the argument is valid. In effect, an argument is valid if the truth of the premises logically guarantees the truth of the conclusion.
Can a valid argument have a true conclusion and false premises?
Validity is a guarantee of a true conclusion when the premises are true but offers no guarantee when the premises are false. False premises can lead to either a true or a false conclusion even in a valid argument.
What logical conclusion can you draw about an argument that is valid but has a false conclusion?
A valid argument had false premises must have a false conclusion,it is impossible that ones have false premises and a true 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.
Do invalid arguments always have false conclusions?
If an argument is invalid, then it must have at least one false premise. If an argument has a conclusion that is certainly false, then the argument must be invalid. If the premises and conclusion are all false, the argument must be invalid. Some invalid arguments have true premises and a true conclusion.
When can a logically valid argument have a false conclusion?
FALSE: A valid argument must have a true conclusion only if all of the premises are true. So it is possible for a valid argument to have a false conclusion as long as at least one premise is false. 2.
Can an argument with a false conclusion be sound?
If a valid argument has a false conclusion, then it is unsound. A sound argument must have both a valid form and true premises. When a valid argument has a false conclusion, it must also have at least one false premise. Thus, a valid argument with a false conclusion will also be unsound.
Can a logical conclusion be false?
Yes, you can have a logically valid argument with a false conclusion.
Can a logically valid argument have false premises?
A valid argument can have false premises; and it can have a false conclusion. But if a valid argument has all true premises, then it must have a true conclusion.
What is false conclusion?
1. ( Logic) a purported refutation of a proposition that does not in fact prove it false but merely establishes a related but strictly irrelevant proposition.
Can a logical argument be false?
Logical fallacies are flawed, deceptive, or false arguments that can be proven wrong with reasoning. There are two main types of fallacies: A formal fallacy is an argument with a premise and conclusion that doesn’t hold up to scrutiny.
How can an argument be valid or invalid?
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. Invalid: an argument that is not valid.
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