Ask AI: If an argument cannot have all true premises, it is valid

An argument's validity is actually not dependent on whether all premises are true. Instead, an argument is considered valid if the conclusion logically follows from the premises. Even if all premises are not true, an argument can still be valid if the conclusion would be true assuming that the premises were true. However, if an argument cannot have all true premises, it could indicate a problem with the argument's logical structure or its premises. In such a case, the argument could be considered unsound. It's always recommended to evaluate an argument in terms of its logic and coherence, in addition to the truth of its premises.