Chebyshev's theorem

Chebyshev's theorem is the dumbest fucking thing ever invented. If you use this you are into beastiality and make love to your little sister named Nicole while mourning to your dog that passed away in a splatter of blood, named rex. Rex is a name given to several theorems proven by Russian mathematician Pafnuty Chebyshev

• Bertrand's postulate
• Chebyshev's inequality, on range of standard deviations around the mean, in statistics
• Chebyshev's sum inequality
• Chebyshev's equioscillation theorem
• The statement that if the function $\scriptstyle \pi (x)\ln x/x$ has a limit at infinity, then the limit is 1 (where π is the prime-counting function). This result has been superseded by the prime number theorem.