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Theorems · Theorem · number theory

Int.coe_negOnePow

∀ (R : Type u_1) [inst : Ring R] (n : ℤ), ↑↑n.negOnePow = (-1) ^ n.natAbs

The cast of negOnePow n to a ring equals (-1) ^ n.natAbs.

Defined in
Mathlib.Algebra.Ring.NegOnePow
Cited by
24 results in Mathlib
Foundations
Depth 72 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
Ring

Around this declaration

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

Polynomial.Chebyshev.T_eval_neg · cited by 4Chebyshev.T_eval_negPolynomial.Chebyshev.U_eval_zero · cited by 2Chebyshev.U_eval_zeroPowerSeries.WithPiTopology.hasSum_pentagonalSeries · cited by 2WithPiTopology.hasSum_pen…Polynomial.zero_lt_negOnePow_mul_eval_of_lt_roots_of_leadingCoeff_nonneg · cited by 2Polynomial.zero_lt_negOne…Polynomial.Chebyshev.T_eval_zero · cited by 2Chebyshev.T_eval_zeroComplex.one_div_one_sub_cpow_hasFPowerSeriesOnBall_zero · cited by 2Complex.one_div_one_sub_c…Polynomial.Chebyshev.one_lt_abs_eval_T_real · cited by 1Chebyshev.one_lt_abs_eval…Polynomial.Chebyshev.U_eval_zero_of_even · cited by 1Chebyshev.U_eval_zero_of_…Polynomial.Chebyshev.sumZeroes_T_of_not_dvd · cited by 1Chebyshev.sumZeroes_T_of_…PowerSeries.WithPiTopology.hasSum_pow_pentagonal_sub_pentagonalSeries · cited by 1WithPiTopology.hasSum_pow…PowerSeries.coeff_pentagonalSeries_pentagonal · cited by 1PowerSeries.coeff_pentago…Polynomial.Chebyshev.T_eval_zero_of_even · cited by 1Chebyshev.T_eval_zero_of_…Polynomial.Chebyshev.one_le_abs_eval_T_real · cited by 0Chebyshev.one_le_abs_eval…Polynomial.Chebyshev.C_eval_neg_two · cited by 0Chebyshev.C_eval_neg_twoPolynomial.Chebyshev.one_le_negOnePow_mul_eval_T_real · cited by 0Chebyshev.one_le_negOnePo…Ring · cited by 7463RingUnits.val · cited by 1966Units.valInt.cast_one · cited by 371Int.cast_oneInt.cast_neg · cited by 224Int.cast_negInt.negOnePow · cited by 156Int.negOnePowzpow_negSucc · cited by 92zpow_negSuccInt.cast_pow · cited by 59Int.cast_powInt.units_inv_eq_self · cited by 5Int.units_inv_eq_selfInt.cast_negOnePow_natCast · cited by 5Int.cast_negOnePow_natCastInt.coe_negOnePowCITED BYCITES

Cites9

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Cited by24

Results whose statement or proof uses this declaration.