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Theorems · Theorem · order theory

Even.pow_nonneg

∀ {R : Type u_3} [inst : Semiring R] [inst_1 : LinearOrder R] [IsOrderedRing R] [ExistsAddOfLE R] {n : ℕ},
  Even n → ∀ (a : R), 0 ≤ a ^ n
Defined in
Mathlib.Algebra.Order.Ring.Basic
Cited by
94 results in Mathlib
Foundations
Depth 19 from the axioms, rests on 225 definitions · uses propext
Assumes
SemiringLinearOrderIsOrderedRingExistsAddOfLE

Around this declaration

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

Orientation.oangle_self · cited by 17Orientation.oangle_selfFunction.hasTemperateGrowth_one_add_norm_sq_rpow · cited by 9Function.hasTemperateGrow…Even.pow_abs · cited by 5Even.pow_abshasFDerivAt_jacobiTheta₂ · cited by 4hasFDerivAt_jacobiTheta₂AkraBazziRecurrence.eventually_bi_mul_le_r · cited by 4AkraBazziRecurrence.event…ProbabilityTheory.IsGaussian.memLp_id · cited by 4IsGaussian.memLp_idOrthonormalBasis.sum_sq_norm_inner_right · cited by 3OrthonormalBasis.sum_sq_n…Complex.norm_exp_sub_one_sub_id_le · cited by 3Complex.norm_exp_sub_one_…ProbabilityTheory.gaussianReal_map_linearMap · cited by 3ProbabilityTheory.gaussia…TemperedDistribution.besselPotential_besselPotential_apply · cited by 3TemperedDistribution.bess…ProbabilityTheory.Fernique.lintegral_closedBall_sdiff_exp_logRatio_mul_sq_le · cited by 2Fernique.lintegral_closed…SimpleGraph.lapMatrix_toLinearMap₂'_apply'_eq_zero_iff_forall_adj · cited by 2SimpleGraph.lapMatrix_toL…ProbabilityTheory.gaussianPDFReal_inv_mul · cited by 2ProbabilityTheory.gaussia…SimpleGraph.posSemidef_lapMatrix · cited by 2SimpleGraph.posSemidef_la…ContinuousLinearMap.rayleighQuotient_le_norm · cited by 2ContinuousLinearMap.rayle…Semiring · cited by 13802SemiringLinearOrder · cited by 8572LinearOrderIsOrderedRing · cited by 777IsOrderedRingEven · cited by 444EvenExistsAddOfLE · cited by 330ExistsAddOfLEpow_add · cited by 315pow_addmul_self_nonneg · cited by 35mul_self_nonnegEven.pow_nonnegCITED BYCITES

Cites7

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

Cited by94

Results whose statement or proof uses this declaration.