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Theorems · Theorem · general topology

OnePoint.ne_infty_iff_exists

∀ {X : Type u_1} {x : OnePoint X}, x ≠ OnePoint.infty ↔ ∃ y, ↑y = x
Defined in
Mathlib.Topology.Compactification.OnePoint.Basic
Cited by
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Foundations
Depth 13 from the axioms · uses propext, Quot.sound
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OnePoint · cited by 126OnePointOnePoint.infty · cited by 102OnePoint.inftyOnePoint.some · cited by 76OnePoint.someOnePoint.rec · cited by 6OnePoint.recOnePoint.ne_infty_iff_existsCITED BYCITES

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