History of the enthymeme

Aristotle, defined an enthymeme in his "Rhetoric", as a "rhetorical syllogism which was based on probable opinions, therefore distinguishing it from a scientific syllogism."

​

In the 20th century, Saul Kripke developed Modal logic. Because of this newly created concept of Modal logic, along with Semantic tableaux, which was developed by Evert Willem Beth.

The definition of an enthymeme changes:

"Rather than suppressing one of the major premises, minor premises, or the conclusion, any incorrect logical inference or proof that is persuasive, satisfies a concept of an enthymeme."