lean_workbook_plus_53381
ProvedProve that .
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_53381 : (-1 : ℤ) * (-1) = 1 := by sorry
Source
Prove that .
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_53381 : (-1 : ℤ) * (-1) = 1 := by sorry