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lemma proved term proof

restrict_enc_false

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formal statement (Lean)

  23@[simp] lemma restrict_enc_false (R : Fin n → Bool) (M : Finset (Fin n)) :
  24  restrict (n:=n) (enc false R) M = restrict (n:=n) R M := by

proof body

Term-mode proof.

  25  funext i; simp [restrict, enc]
  26

depends on (4)

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