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Theorems · Theorem · functional analysis

le_gauge_of_subset_closedBall

∀ {E : Type u_2} [inst : NormedAddCommGroup E] [inst_1 : NormedSpace ℝ E] {s : Set E} {r : ℝ} {x : E},
  Absorbent ℝ s → 0 ≤ r → s ⊆ Metric.closedBall 0 r → ‖x‖ / r ≤ gauge s x
Defined in
Mathlib.Analysis.Convex.Gauge
Cited by
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Foundations
Depth 161 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
NormedAddCommGroupNormedSpace

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