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'".

Aika

1. 1.lament or sad song. Pronounced I-kah 2.the main character in the anime "Agent Aika". "otome no aika" translates ..

Dayplay

1. Playing by day Dayplay is just as important an exercise of the imagination as dreaming at night is in resolving inner conflicts. See b..

Zere

1. very, with an accent "My shoulders look zere weird in this picture." See very, weirdly..

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If And Only If Edit Meaning