jacobiSym.eq_zero_iff

∀ {a : ℤ} {b : ℕ}, jacobiSym a b = 0 ↔ b ≠ 0 ∧ a.gcd ↑b ≠ 1

The symbol J(a | b) vanishes if and only if b ≠ 0 and a and b are not coprime.

Defined in: Mathlib.NumberTheory.LegendreSymbol.JacobiSymbol
Cited by: 0 results in Mathlib
Foundations: Depth 161 from the axioms · uses propext, Classical.choice, Quot.sound

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