OAI/Combinatorics/ExpectationThreshold/SelectorEntropyDyadic.lean
2 declarations, 0 contain sorry, 0 declared as axioms
Finite dyadic mass for the selector entropy estimate
The positive dyadic levels have total mass at most one, including when there are no levels.
- lemma
OAI.TalagrandThreshold.selector_dyadic_range_sumline 19 - theorem
OAI.TalagrandThreshold.selector_dyadic_sum_le_oneline 29Source documentation
The dyadic weights of all positive selector levels sum to at most one.
theorem selector_dyadic_sum_le_one (s : ℕ) : (∑ i : Fin s, (1 / 2 : ℝ) ^ (i.val + 1)) ≤ 1 := by …