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'".

Podfaking

1. The act of wearing earbuds even if your iPod is not on or not charged to avoid annoying or obnoxious people. That guy next to me on the..

Haren

1. a fucking retard who never accepts the fact alan owns him also look up retard who is that haren there? See alan..

Dick On

1. to maneuver around somebody, such as in a sport, usually in hockey Shit, he absolutely dicked on that goalie. See doogan..

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If And Only If Edit Meaning