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Theorems · Theorem · number theory

Nat.primeFactorsList_count_eq

∀ {n p : ℕ}, List.count p n.primeFactorsList = n.factorization p

We can write both n.factorization p and n.factors.count p to represent the power of p in the factorization of n: we declare the former to be the simp-normal form.

Defined in
Mathlib.Data.Nat.Factorization.Defs
Cited by
11 results in Mathlib
Foundations
Depth 88 from the axioms · uses propext, Classical.choice, Quot.sound

Around this declaration

Dashed lines are statement dependencies; solid lines are citations in proofs.

Nat.ordProj_dvd · cited by 17Nat.ordProj_dvdNat.Prime.factorization · cited by 11Prime.factorizationNat.eq_of_factorization_eq · cited by 7Nat.eq_of_factorization_eqNat.Prime.factorization_pos_of_dvd · cited by 3Prime.factorization_pos_o…Nat.factorization_eq_primeFactorsList_multiset · cited by 2Nat.factorization_eq_prim…AddMonoid.exists_addOrderOf_eq_exponent · cited by 1AddMonoid.exists_addOrder…Nat.factorization_eq_of_coprime_left · cited by 1Nat.factorization_eq_of_c…Nat.squarefree_of_factorization_le_one · cited by 1Nat.squarefree_of_factori…Monoid.exists_orderOf_eq_exponent · cited by 1Monoid.exists_orderOf_eq_…ArithmeticFunction.cardFactors_eq_sum_factorization · cited by 0ArithmeticFunction.cardFa…isPrimePow_iff_unique_prime_dvd · cited by 0isPrimePow_iff_unique_pri…DFunLike.coe · cited by 62936DFunLike.coeFinsupp · cited by 5255Finsupple_antisymm · cited by 2068le_antisymmNat.Prime · cited by 2059Nat.Primele_rfl · cited by 1558le_rflLT.lt.ne' · cited by 1417lt.ne'Nat.factorization · cited by 215Nat.factorizationNat.primeFactors · cited by 129Nat.primeFactorspadicValNat · cited by 106padicValNatNat.primeFactorsList · cited by 105Nat.primeFactorsListNat.prime_of_mem_primeFactorsList · cited by 30Nat.prime_of_mem_primeFac…lt_iff_not_ge · cited by 22lt_iff_not_geNat.primeFactorsList_zero · cited by 13Nat.primeFactorsList_zeropadicValNat_zero_right · cited by 12padicValNat_zero_rightNat.primeFactors_zero · cited by 11Nat.primeFactors_zeroNat.primeFactorsList_count_eqCITED BYCITES

Cites18

Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.

Cited by11

Results whose statement or proof uses this declaration.