OnePoint.infty_notMem_image_coe

∀ {X : Type u_1} {s : Set X}, OnePoint.infty ∉ OnePoint.some '' s

Defined in: Mathlib.Topology.Compactification.OnePoint.Basic
Cited by: 4 results in Mathlib
Foundations: Depth 63 from the axioms · uses propext, Classical.choice, Quot.sound

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