Theorems · Definition · order theory
IsNonarchimedean
{R : Type u_3} → [LinearOrder R] → {α : Type u_4} → [Add α] → (α → R) → PropA function f : α → R is nonarchimedean if it satisfies the ultrametric inequality
f (a + b) ≤ max (f a) (f b) for all a b : α.
- Defined in
- Mathlib.Algebra.Order.Ring.Basic
- Cited by
- 77 results in Mathlib
- Foundations
- Depth 17 from the axioms · uses propext
- Assumes
- LinearOrderAdd
Around this declaration
Dashed lines are statement dependencies; solid lines are citations in proofs.
Cites1
Mathlib declarations this one mentions in its statement or cites explicitly in its proof. Plumbing is filtered out.
- LinearOrderstatement and proof · cited by 8,572
Cited by83
Results whose statement or proof uses this declaration.
- IsUltrametricDist.isNonarchimedean_normstatement · cited by 8
- IsNonarchimedean.apply_sum_le_supstatement and proof · cited by 6
- IsNonarchimedean.finset_image_addstatement and proof · cited by 5
- smoothingSeminormstatement and proof · cited by 5
- exists_nonarchimedean_pow_mul_seminorm_of_finiteDimensionalstatement and proof · cited by 5
- NumberField.HeightOneSpectrum.isNonarchimedean_adicAbvstatement · cited by 5
- IsNonarchimedean.apply_intCast_le_onestatement and proof · cited by 3
- IsNonarchimedean.apply_natCast_le_onestatement and proof · cited by 3
- IsNonarchimedean.finset_image_add_of_nonemptystatement and proof · cited by 3
- norm_root_le_spectralValuestatement and proof · cited by 3
- spectralNorm_eq_invariantExtensionproof · cited by 3
- Height.AdmissibleAbsValues.isNonarchimedeanstatement · cited by 3