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Theorems · Theorem · general topology

BoundedContinuousFunction.dist_le

∀ {α : Type u} {β : Type v} [inst : TopologicalSpace α] [inst_1 : PseudoMetricSpace β]
  {f g : BoundedContinuousFunction α β} {C : ℝ}, 0 ≤ C → (dist f g ≤ C ↔ ∀ (x : α), dist (f x) (g x) ≤ C)

The distance between two functions is controlled by the supremum of the pointwise distances.

Defined in
Mathlib.Topology.ContinuousMap.Bounded.Basic
Cited by
11 results in Mathlib
Foundations
Depth 118 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
TopologicalSpacePseudoMetricSpace

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