quadraticChar_neg_one_iff_not_isSquare

∀ {F : Type u_1} [inst : Field F] [inst_1 : Fintype F] [inst_2 : DecidableEq F] {a : F},
  (quadraticChar F) a = -1 ↔ ¬IsSquare a

For a : F, quadraticChar F a = -1 ↔ ¬ IsSquare a.

Defined in: Mathlib.NumberTheory.LegendreSymbol.QuadraticChar.Basic
Cited by: 4 results in Mathlib
Foundations: Depth 149 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes: Field Fintype DecidableEq

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