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Theorems · Theorem · order theory

Finset.prod_pos

∀ {ι : Type u_1} {R : Type u_2} [inst : CommMonoidWithZero R] [inst_1 : PartialOrder R] [ZeroLEOneClass R]
  [PosMulStrictMono R] [Nontrivial R] {f : ι → R} {s : Finset ι}, (∀ i ∈ s, 0 < f i) → 0 < ∏ i ∈ s, f i
Defined in
Mathlib.Algebra.Order.BigOperators.GroupWithZero.Finset
Cited by
25 results in Mathlib
Foundations
Depth 55 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
CommMonoidWithZeroPartialOrderZeroLEOneClassPosMulStrictMonoNontrivial

Around this declaration

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

BoundingSieve.nu_pos_of_dvd_prodPrimes · cited by 4BoundingSieve.nu_pos_of_d…AddMonoid.exponent_ne_zero_iff_range_addOrderOf_finite · cited by 3AddMonoid.exponent_ne_zer…MultilinearMap.bound_of_shell_of_norm_map_coord_zero · cited by 3MultilinearMap.bound_of_s…Monoid.exponent_ne_zero_iff_range_orderOf_finite · cited by 3Monoid.exponent_ne_zero_i…Nat.multinomial_cons · cited by 3Nat.multinomial_consintegral_sin_pow_pos · cited by 3integral_sin_pow_posprimorial_pos · cited by 3primorial_posNumberField.mixedEmbedding.fundamentalCone.setLIntegral_expMapBasis_image · cited by 2fundamentalCone.setLInteg…Height.mulHeight₁_sum_le · cited by 2Height.mulHeight₁_sum_leMvPowerSeries.gaussNorm_eq_zero_iff · cited by 2MvPowerSeries.gaussNorm_e…Multiset.bell_mul_eq · cited by 2Multiset.bell_mul_eqNat.totient_eq_div_primeFactors_mul · cited by 2Nat.totient_eq_div_primeF…Nat.prod_primeFactors_sdiff_of_squarefree · cited by 1Nat.prod_primeFactors_sdi…Real.harm_mean_le_geom_mean_weighted · cited by 1Real.harm_mean_le_geom_me…Equiv.Perm.card_of_cycleType · cited by 1Perm.card_of_cycleTypeFinset · cited by 13712FinsetPartialOrder · cited by 6410PartialOrderNontrivial · cited by 2416NontrivialFinset.prod · cited by 2356Finset.prodCommMonoidWithZero · cited by 913CommMonoidWithZerozero_lt_one · cited by 598zero_lt_onemul_pos · cited by 374mul_posZeroLEOneClass · cited by 304ZeroLEOneClassPosMulStrictMono · cited by 151PosMulStrictMonoFinset.prod_induction · cited by 18Finset.prod_inductionFinset.prod_posCITED BYCITES

Cites10

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

Cited by25

Results whose statement or proof uses this declaration.