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def definition def or abbrev

Z_poly

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formal statement (Lean)

  55def Z_poly (a b : ℕ) (q : ℤ) : ℤ := (a : ℤ) * q ^ 2 + (b : ℤ) * q ^ 4

proof body

Definition body.

  56
  57/-- Z is even: Z(Q̃) = Z(-Q̃). -/

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