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'".

Borock

1. Instrumental rock music that is very nice to listen to for a couple minutes, but in this genre the music goes on forever and doesn'..

Korolev

1. Its a city that is about 5 minutes away from Moscow Russia. I lived there for 13 years and I think its was the best to live at in the wo..

The Raw Body

1. a manouvre used to extort money or information from school collegues,this manouvre consists of holding someone down dropping your pants ..

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If And Only If Edit Meaning