Let `Λ : R[f/e] → R'` be a chart map to a concrete surface `R'` over `O'`, compatible with a substitution `s : O[[T,X]] → O'[[T,X]]` (`E ↦ T`, `F ↦ T (X + α)`), and surjective modulo the parameter ide

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Let `Λ : R[f/e] → R'` be a chart map to a concrete surface `R'` over `O'`, compatible with a substitution `s : O[[T,X]] → O'[[T,X]]` (`E ↦ T`, `F ↦ T (X + α)`), and surjective modulo the parameter ide · Prove2Me