import NNG.Levels.Multiplication import NNG.MyNat.Power Game "NNG" World "Power" Level 1 Title "zero_pow_zero" open MyNat Statement MyNat.zero_pow_zero "$0 ^ 0 = 1$" : (0 : ℕ) ^ 0 = 1 := by rw [pow_zero] rfl NewLemma MyNat.pow_zero MyNat.pow_succ NewDefinition Pow LemmaTab "Pow"