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'".

Lucky Phil

1. Used as a sarcastic response to someone who persistently has bad luck. Originally from Australia. "Have you heard, Mike's bro..

Rubbishio

1. Of very poor quality. - Apparently derived from the language of Sardinia, although evidence of this is very scarce and possibly non-exi..

Qunshandes

1. to be dumb; to look ugly mann you act just like qunshandes See ugly, fugly, smelly, ashy 1. to be dumb; to look ugly mann you act j..

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