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'".

Timpani

1. Large keyed drums that when hit in various ways, can make sweet or menacing noises "The timpani sounds like thunder" See Rya..

Ib's

1. acronym for Itchy Balls. "dude, i got a case of the ib's, son." "i told you not to sleep with shelia. she gave you..

Funkytard

1. 1.Someone who is entertaining to others only when being stupid or a tard 2. Someone who inflicts pain on themselves for the enjoyment o..

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