Zero Theory, Zero Theorem, Zero Conjecture, Zero Law or similar, may mean:

• X&Y, Coldplay's third album, once rumored to be titled Zero Theory
• The Zero Theorem, a science fiction film directed by Terry Gilliam

It is a simple theory that if zero represents something then how can it be nothing. This theory, for now, has only had one answer, which is that mathmatitians had to use something to represent something which was a hole with nothing inside. Another conclusion is that zero is actually everything, because if there is only nothing, then nothing must be everything.

• List of zero terms

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