`BookProof.ChapterLorentzRealRep.castR_mem_WHalf` : ∀ M ∈ SBHalf, castR M ∈ WHalf

Initializing...

`BookProof.ChapterLorentzRealRep.castR_mem_WHalf` : ∀ M ∈ SBHalf, castR M ∈ WHalf · Prove2Me