`BookProof.ChapterStatementOperator.ModelStatement.truthValue_eq_zero_iff` : S.truthValue ψ = 0 ↔ S.op ψ = 0

Initializing...

`BookProof.ChapterStatementOperator.ModelStatement.truthValue_eq_zero_iff` : S.truthValue ψ = 0 ↔ S.op ψ = 0 · Prove2Me