1. a fortiori - Adjective
2. a fortiori - Adverb
With stronger reason.
Source: Webster's dictionaryif you are wrong then, a fortiori, so am I Source: Internet
Indeed, since a metric is a fortiori a pseudometric, the pseudometric definition furnishes M with a uniform structure. Source: Internet
He added that "the vitality of primitive communities was incomparably greater than that of Semitic, Greek, Roman, etc. societies, and, a fortiori, that of modern capitalist societies". Source: Internet