Non sequitur is
Latin for "it does not follow." In formal logic, an argument is a non sequitur if its conclusion does not follow from its premises. In a non sequitur, the conclusion can be either true or false, but the argument is a fallacy because the conclusion does not follow from the premise. All
formal fallacies are specific types of non sequitur. The term has special applicability in law, having a formal legal definition.
See more at Wikipedia.org...