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Theorems · Theorem · commutative algebra

IsIntegral.isAlgebraic

∀ {R : Type u} {A : Type v} [inst : CommRing R] [inst_1 : Ring A] [inst_2 : Algebra R A] [Nontrivial R] {x : A},
  IsIntegral R x → IsAlgebraic R x

An integral element of an algebra is algebraic.

Defined in
Mathlib.RingTheory.Algebraic.Integral
Cited by
18 results in Mathlib
Foundations
Depth 111 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CommRingRingAlgebraNontrivial

Around this declaration

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

isAlgebraic_iff_isIntegral · cited by 12isAlgebraic_iff_isIntegralIsAlgebraic.of_finite · cited by 8IsAlgebraic.of_finiteisAlgebraic_of_isFractionRing · cited by 6isAlgebraic_of_isFraction…IsAlgebraic.restrictScalars_of_isIntegral · cited by 4IsAlgebraic.restrictScala…IntermediateField.isSeparable_adjoin_simple_iff_isSeparable · cited by 4IntermediateField.isSepar…IsPrimitiveRoot.norm_pow_sub_one_of_prime_pow_ne_two · cited by 4IsPrimitiveRoot.norm_pow_…Ideal.comap_ne_bot_of_integral_mem · cited by 2Ideal.comap_ne_bot_of_int…IsGalois.is_separable_splitting_field · cited by 2IsGalois.is_separable_spl…Polynomial.not_weaklyQuasiFiniteAt · cited by 2Polynomial.not_weaklyQuas…IsIntegral.trans_isAlgebraic · cited by 1IsIntegral.trans_isAlgebr…Complex.isAlgebraic_cos_rat_mul_pi · cited by 1Complex.isAlgebraic_cos_r…Complex.isAlgebraic_sin_rat_mul_pi · cited by 1Complex.isAlgebraic_sin_r…Polynomial.map_under_lt_comap_of_weaklyQuasiFiniteAt · cited by 1Polynomial.map_under_lt_c…integralClosure_le_algebraicClosure · cited by 0integralClosure_le_algebr…Real.isAlgebraic_cos_rat_mul_pi · cited by 0Real.isAlgebraic_cos_rat_…CommRing · cited by 17173CommRingAlgebra · cited by 11388AlgebraRing · cited by 7463RingPolynomial · cited by 5681PolynomialAlgebra.algebraMap · cited by 4706Algebra.algebraMapNontrivial · cited by 2416NontrivialPolynomial.Monic · cited by 461Polynomial.MonicIsIntegral · cited by 427IsIntegralPolynomial.eval₂ · cited by 267Polynomial.eval₂IsAlgebraic · cited by 163IsAlgebraicPolynomial.Monic.ne_zero · cited by 63Monic.ne_zeroIsIntegral.isAlgebraicCITED BYCITES

Cites11

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

Cited by18

Results whose statement or proof uses this declaration.