Not all groups of sentences contain arguments. Explanations have indicator words and an inferential relationship between the statements without being arguments. An explanation is a statement or group of statements intended to shed light on some phenomenon that is already accepted as a matter of fact. Valid Arguments Test for validity by imagining that all the premises are true and then see if conclusion could possibly be false.
Validity is independent of the actual truth or falsity of the premises and the conclusion.
Unlike validity and invalidity of deductive arguments, strength and weakness of inductive arguments admits of degree. The validity of an argument is determined by its form. The validity of an argument is determined by its form. The validity of an argument is determined by its form. The invalidity of an argument is determined by its form.