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'".

Oo Wazz

1. means cool or yes in MOira, lisburn, Lurgan and some parts of holland Aite lad?! ya wanna beer? "OO WAZZ" See D..

W.w.f.d.?

1. Means what would fobbitt do? For all those Soldiers, Sailors, Airmen, Marines, Coasties who do not leave the wire. Complian because the..

Quilver

1. a mob of angry squirrels, may or may not be a part of a larger plot to take over the world Did you hear about the quilver in Russia tha..

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If And Only If Edit Meaning