FormalConjectures/Wikipedia/NormalityOfPi.lean
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1 declarations, 1 contain sorry, 0 declared as axioms
Normality of mathematical constants
Despite extensive empirical evidence—billions of digits have been computed for $\pi$, $e$, and $\sqrt{2}$, all showing near-uniform digit distribution—it is an open problem whether any of the classical constants $\pi$, $e$, $\sqrt{2}$, $\ln 2$, or $\varphi$ is normal in any base.
References:
Imports (1)
- theorem
NormalNumber.pi_normal_base_ten$\pi$ is normal in base 10 sorry line 43 sourceSource documentation
$\pi$ is normal in base 10.
depends on sorry what this means
Statement uses: NormalNumber.IsNormalInBase,
OfNat.ofNat,Nat,Real.piProof uses:
sorryAx,Lean.Name,Bool.false,Lean.Name.num,Lean.Name.str,Lean.Name.anonymous2 instances, coercions and auxiliary constants left out.
Tactic trace: 1 steps
Open to load the checked before-and-after goal states.
theorem pi_normal_base_ten : IsNormalInBase 10 π := by …
Mentions: NormalNumber.IsNormalInBase