Mathlib Map

Theorems · Theorem · field theory

Polynomial.leadingCoeff_mul

∀ {R : Type u} [inst : Semiring R] [NoZeroDivisors R] (p q : Polynomial R),
  (p * q).leadingCoeff = p.leadingCoeff * q.leadingCoeff
Defined in
Mathlib.Algebra.Polynomial.Degree.Operations
Cited by
32 results in Mathlib
Foundations
Depth 92 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
SemiringNoZeroDivisors

Around this declaration

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

Polynomial.monic_mul_leadingCoeff_inv · cited by 19Polynomial.monic_mul_lead…minpoly.eq_of_irreducible · cited by 8minpoly.eq_of_irreduciblePolynomial.leadingCoeffHom · cited by 6Polynomial.leadingCoeffHomPolynomial.associated_content_mul · cited by 6Polynomial.associated_con…Polynomial.irreducible_of_monic · cited by 3Polynomial.irreducible_of…monic_ascPochhammer · cited by 2monic_ascPochhammerPolynomial.isIntegral_of_mahlerMeasure_eq_one · cited by 2Polynomial.isIntegral_of_…Polynomial.Monic.irreducible_iff_irreducible_map_fraction_map · cited by 2Monic.irreducible_iff_irr…LocalSubring.exists_valuationRing_of_isMax · cited by 2LocalSubring.exists_valua…Polynomial.associated_of_dvd_of_natDegree_le_of_leadingCoeff · cited by 1Polynomial.associated_of_…monic_descPochhammer · cited by 1monic_descPochhammerPolynomial.eq_of_dvd_of_natDegree_le_of_leadingCoeff · cited by 1Polynomial.eq_of_dvd_of_n…Algebra.exists_etale_isIdempotentElem_forall_liesOver_eq_aux · cited by 1Algebra.exists_etale_isId…Polynomial.leadingCoeff_normalize · cited by 1Polynomial.leadingCoeff_n…Polynomial.IsUnitTrinomial.irreducible_aux3 · cited by 1IsUnitTrinomial.irreducib…Semiring · cited by 13802SemiringPolynomial · cited by 5681PolynomialMulZeroClass.mul_zero · cited by 2091MulZeroClass.mul_zeroMulZeroClass.zero_mul · cited by 1625MulZeroClass.zero_mulNoZeroDivisors · cited by 545NoZeroDivisorsPolynomial.leadingCoeff · cited by 498Polynomial.leadingCoeffmul_ne_zero · cited by 178mul_ne_zeroPolynomial.leadingCoeff_eq_zero · cited by 55Polynomial.leadingCoeff_e…Polynomial.leadingCoeff_mul' · cited by 11Polynomial.leadingCoeff_m…Polynomial.leadingCoeff_mulCITED BYCITES

Cites9

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

Cited by33

Results whose statement or proof uses this declaration.