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'".

Unz

1. 1. goodbye,peace,later spanish and english origins first originating from the english word "one", as in "goodbye" ..

Zes

1. Extremely pale, either Albino, or really scared as if one has seen a ghost Why so Zes? Damn yo, you Zes! See pale, pank, dark, tan, ..

Yobble

1. From the "viz profanisaurus rex", the act of doing a crap somewhere other than in a toilet. eg: from a tree onto a cow. Jack ..

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If And Only If Edit Meaning