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def definition def or abbrev

setVar

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formal statement (Lean)

  17def setVar {n} (σ : PartialAssignment n) (v : Var n) (b : Bool) : PartialAssignment n :=

proof body

Definition body.

  18  fun w => if w = v then some b else σ w
  19

used by (6)

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depends on (2)

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