Pell.IsFundamental.eq_pow_of_nonneg

∀ {d : ℤ} {a₁ : Pell.Solution₁ d}, Pell.IsFundamental a₁ → ∀ {a : Pell.Solution₁ d}, 0 < a.x → 0 ≤ a.y → ∃ n, a = a₁ ^ n

Any nonnegative solution is a power with nonnegative exponent of a fundamental solution.

Defined in: Mathlib.NumberTheory.Pell
Cited by: 1 results in Mathlib
Foundations: Depth 54 from the axioms · uses propext, Classical.choice, Quot.sound

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