Validity , invalidity and soundness

Validity: An argument is valid if its conclusion logically follows from its premises. This means that if the premises are true, the conclusion must be true. Validity is about the structure of the argument, not the truth of the premises.

Invalidity: An argument is invalid if its conclusion does not logically follow from its premises. It is possible for the premises to be true and the conclusion to be false.

Soundness: An argument is sound if it is both valid and all of its premises are actually true. A sound argument guarantees a true conclusion.