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def definition def or abbrev

pointInterface

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formal statement (Lean)

  91noncomputable def pointInterface {K : Type*} (x₀ : K) :
  92    PrimitiveInterface K where
  93  n := 2

proof body

Definition body.

  94  hpos := by norm_num
  95  observe := fun x =>
  96    if x = x₀ then (1 : Fin 2) else (0 : Fin 2)
  97
  98/-- The point interface recognizes its reference point as outcome `1`. -/

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depends on (5)

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