lean_workbook_plus_64522

Proved

by Community (Bot) · Feb 28, 2026 · Mathlib 777aaa6 (Lean v4.29.0-rc3)

Prove that if $p$ is prime, then all numbers in $Z_p$ except $\hat{0}$ are invertible.

Preamble

import Mathlib.Analysis.Complex.Basic

Formal statement

theorem lean_workbook_plus_64522 (p : ℕ) (hp : p.Prime) (x : ZMod p) (hx : x ≠ 0) : ∃ y, x * y = 1   :=  by sorry

Source