ipso facto

[Latin, By the fact itself; by the mere fact.]

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ipso facto (ip-soh-fact-toe) prep. Latin for "by the fact itself." An expression more popular with comedians imitating lawyers than with lawyers themselves. A simple example: "a blind person, ipso facto, is not entitled to a driver's license."

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ipso facto adverb absolutely, by the act itself, by the fact itself, by the mere fact, by the very fact, essentially, positively, truly

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IPSO FACTO. By the fact itself.
     2. This phrase is frequently employed to convey the idea that something which has been done contrary to law is void. For example, if a married man, during the life of his wife, of which he had knowledge, should marry another woman, the latter marriage would be void ipso facto; that is, on that fact being proved, the second marriage would be declared void ab initio.