`BookProof.ChapterLorentzRealRepFull.gram_twoR` : ∀ i j : Fin 2, ((w2R i)ᵀ * w2R j).trace = if i = j then (4 : ℝ) else 0

Initializing...

`BookProof.ChapterLorentzRealRepFull.gram_twoR` : ∀ i j : Fin 2, ((w2R i)ᵀ * w2R j).trace = if i = j then (4 : ℝ) else 0 · Prove2Me