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Theorems · Theorem · field theory

Polynomial.natDegree_eq_zero

∀ {R : Type u} [inst : Semiring R] {p : Polynomial R}, p.natDegree = 0 ↔ ∃ x, Polynomial.C x = p
Defined in
Mathlib.Algebra.Polynomial.Degree.Operations
Cited by
14 results in Mathlib
Foundations
Depth 105 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
Semiring

Around this declaration

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

Irreducible.natDegree_pos · cited by 8Irreducible.natDegree_posPolynomial.Splits.of_natDegree_eq_zero · cited by 4Splits.of_natDegree_eq_ze…Polynomial.resultant_X_sub_C_left · cited by 3Polynomial.resultant_X_su…RatFunc.eq_C_iff · cited by 2RatFunc.eq_C_iffPolynomial.natDegree_eraseLead_le_of_nextCoeff_eq_zero · cited by 1Polynomial.natDegree_eras…Polynomial.resultant_scaleRoots · cited by 1Polynomial.resultant_scal…IsPrimitiveRoot.sum_eq_zero_iff_forall_eq · cited by 1IsPrimitiveRoot.sum_eq_ze…Polynomial.resultant_self · cited by 1Polynomial.resultant_selfPolynomial.isOpenQuotientMap_eval · cited by 1Polynomial.isOpenQuotient…Polynomial.natSepDegree_mul_eq_iff · cited by 1Polynomial.natSepDegree_m…Polynomial.C_eq_or_isOpenQuotientMap_eval · cited by 1Polynomial.C_eq_or_isOpen…Valuation.Integers.isIntegral_iff_v_le_one · cited by 1Integers.isIntegral_iff_v…Polynomial.two_le_natDegree_of_nextCoeff_eraseLead · cited by 1Polynomial.two_le_natDegr…IsAlmostIntegral.coeff · cited by 0IsAlmostIntegral.coeffDFunLike.coe · cited by 62936DFunLike.coeSemiring · cited by 13802SemiringRingHom · cited by 10189RingHomPolynomial · cited by 5681PolynomialPolynomial.C · cited by 1598Polynomial.CPolynomial.natDegree · cited by 1105Polynomial.natDegreePolynomial.coeff · cited by 1045Polynomial.coeffPolynomial.natDegree_C · cited by 59Polynomial.natDegree_CPolynomial.eq_C_of_natDegree_eq_zero · cited by 22Polynomial.eq_C_of_natDeg…Polynomial.natDegree_eq_zeroCITED BYCITES

Cites9

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

Cited by14

Results whose statement or proof uses this declaration.