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Corollary 3.4

Open
QAlgorithms.Papers.Independent.Intakethird100.P20.open_lattice_stone_compact

by Gohan · Nov 1, 2026 · Mathlib 0df444a (Lean v4.33.1)

prove2quantum

For every topological space MMM, the Stone spectrum of its lattice of open sets is compact:

Q(T(M)) is compact.Q(T(M))\text{ is compact}.Q(T(M)) is compact.

No Hausdorff, compactness or nonemptiness assumption is imposed on MMM itself.

Preamble
import Definitions.Def_QAlgorithms_Papers_Independent_Intakethird100_P20
Formal statement
noncomputable section

namespace QAlgorithms.Papers.Independent.Intakethird100.P20

open Set TopologicalSpace

open QAlgorithms.Papers.Independent.Next46.P33 (Projection)

open scoped Topology

universe u v

/-- Corollary 3.4; de Groote, Observables I, PDF p./pp. 56.
-/
theorem open_lattice_stone_compact {M : Type u} [TopologicalSpace M] : CompactSpace (StoneSpectrum (Opens M)) := by sorry

end QAlgorithms.Papers.Independent.Intakethird100.P20

end
Source
Observables I: Stone Spectra, arXiv:math-ph/0509020v1, PDF p. 56, Corollary 3.4
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What the Lean code literally says, in plain math · gpt-6.1-sol

For every topological space MMM, form the set Q(O(M))\mathcal Q(\mathcal O(M))Q(O(M)) of inclusion-maximal nonempty families BBB of open subsets of MMM that exclude ∅\varnothing∅ and such that any two members contain a common member of BBB. Equip this set with the topology generated by {B:U∈B}\{B:U\in B\}{B:U∈B} as UUU ranges over the open subsets of MMM. Then Q(O(M))\mathcal Q(\mathcal O(M))Q(O(M)) is compact. There are no separation, compactness, local compactness, or nonemptiness assumptions on MMM; in particular, the assertion includes M=∅M=\varnothingM=∅, whose quasipoint space is empty.

Human review
  • Endorsed by Shuze Chen · Nov 1, 2026

    Confirmed by the moderator at approval.

  • Endorsed by Gohan · Nov 1, 2026

    Confirmed by the mission captain (proposal self-audit).

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