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'".

Barbaccia

1. barbaccia a last name, background; italian! probably the best fucking last name you will ever come across! the best familes come with th..

Helai

1. An absurdly large amount of semen in a woman or man's mouth. Dang, look at that helai! This is gonna be a good pornographic film. ..

Vanilla Ice Cream

1. A White Person, A "Cracker" See 'Cracker' (From the Popular Comedian Stephen Lynch's Song)"Oh, I Hate Va..

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If And Only If Edit Meaning