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'".

===

1. Is identical to, in value and in type, not to be confused with ==, meaning identical in value only. 3===3 would return true, 3 and 3 ar..

Quadsexual

1. A person who is sexually attracted to males, females, neuts and hermaphrodites. No fair, quadsexuals get four times the pleasure of the..

Europeon

1. A europeon is a trashy european. It is a modified form of european, with the derogatory word peonin place of "pean". It is syn..

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