OAI/NumberTheory/TotientAsymptotic/SuffixFactorization.lean
6 declarations, 0 contain sorry, 0 declared as axioms
Exact suffix totient factorizations for basic witnesses.
- def
OAI.TotientAsymptotic.suffixPreimageline 14 - lemma
OAI.TotientAsymptotic.suffixPreimage_posline 17 - lemma
OAI.TotientAsymptotic.basic_prime_coprime_suffixline 25 - lemma
OAI.TotientAsymptotic.totient_prime_product_exactline 49 - theorem
OAI.TotientAsymptotic.basic_suffix_totient_splitline 80Source documentation
Cutting a basic witness strictly before its final displayed prime gives an exact multiplicative totient split. Repetitions inside the final cofactor are retained.
theorem basic_suffix_totient_split {x : ℝ} {H i j : ℕ} {η : RemainderDatum (L x H)} (hη : IsBasicRemainder x H η) (hL : L x H < m x) (hij : i ≤ j) (hjL : j < L x H) : (suffixPreimage η i).totient = (suffixPreimage η j).totient * ∏ r ∈ Finset.Icc (i+1) j, (remainderPrime η r-1) := by …Mentions: OAI.TotientAsymptotic.RemainderDatum, OAI.TotientAsymptotic.L, OAI.TotientAsymptotic.IsBasicRemainder, OAI.TotientAsymptotic.m, OAI.TotientAsymptotic.suffixPreimage, OAI.TotientAsymptotic.remainderPrime
- lemma
OAI.TotientAsymptotic.suffixPreimage_at_Rline 106