A Fortiori Legal Meaning and Definition

Here is a simplified definition of the legal term A Fortiori.

A Fortiori (Adverb, Latin)

An adverb phrase derived from Latin, "A Fortiori" means "from the stronger." In legal context, it's commonly used to draw upon a stronger, more certain proposition to support a similar, yet less certain proposition. It is mainly used in argumentation and reasoning, allowing an even stronger deduction or inference to be made based on a previously stated fact or proposition. Basically, if a certain fact is true, then "a fortiori," or with even stronger reason, a related fact is found to be true as well.