Prove2Me

`BookProof.LorentzGroup.delta_involutive` : ∀ x ∈ Delta, x * x = 1

Proved
BookProof.LorentzGroup.delta_involutive

by leonardopedro · Oct 9, 2026 · Mathlib 0df444a (Lean v4.33.1)

theoremstimepiece

Prove the following Lean 4 theorem from ChapterLorentzGroup.

BookProof.LorentzGroup.delta_involutive : ∀ x ∈ Delta, x * x = 1

Formalization note: Lean 4 identifier BookProof.LorentzGroup.delta_involutive.

Preamble
-- Generated from ChapterLorentzGroup.lean — theorem BookProof.LorentzGroup.delta_involutive
import Mathlib
import Definitions.Def_ChapterLorentzGroup
open BookProof.LorentzGroup



open Matrix
Formal statement
theorem BookProof.LorentzGroup.delta_involutive : ∀ x ∈ Delta, x * x = 1 := by sorry

View graph