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theorem proved term proof

T2_atomicity

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formal statement (Lean)

  47theorem T2_atomicity {M} [AtomicTick M] :
  48  ∀ t u v, AtomicTick.postedAt (M:=M) t u → AtomicTick.postedAt (M:=M) t v → u = v := by

proof body

Term-mode proof.

  49  intro t u v hu hv
  50  rcases (AtomicTick.unique_post (M:=M) t) with ⟨w, hw, huniq⟩
  51  have hu' : u = w := huniq u hu
  52  have hv' : v = w := huniq v hv
  53  exact hu'.trans hv'.symm
  54

used by (2)

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depends on (8)

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