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def definition def or abbrev

addNotes

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formal statement (Lean)

 156def addNotes {α : Type} (notes : List String) (m : Measurement α) : Measurement α :=

proof body

Definition body.

 157  { m with notes := m.notes ++ notes }
 158
 159end Measurement
 160
 161/-- An observable extracts a `Measurement α` from some state type `S`. -/

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