If And Only If

What is If And Only If?

A term used by mathematicians and logicians to indicate that something happens under very specific conditions. Often seen in proofs and theories.

1) The sum a geometric sequence is given by a/(1-r) if and only if |r| < 1.

2) In a bar:

dumped guy: "My girlfriend left me because I told her I loved her!"

other guy: "What a bitch!"

dumped guy: "No, it's all my fault, she's a mathematician, and I should have said 'I love you and only you'".

Lack

1. reffering to the vehicle known as the Caddilac. "Damn that lack is pimpin on dem dubs" 2. "Lack" Waterford, Irela..

Missouruh

1. A non-existent U.S. state, though a great number of Missourians claim to live there. Missourian: I'm from Missouruh, the Show Me S..

Quick As A Jew Dropping Money

1. a term meaning something thats fast which uses the sterotype of jews being tight with money. i was out of that door as quick as a jew p..

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If And Only If Edit Meaning