unicode_fol_kit.parse_prover9¶ unicode_fol_kit.parse_prover9(text)[source]¶ Parse a single Prover9-syntax formula into a toolkit Node. A trailing period (Prover9 terminates each formula with .) is accepted and ignored. Parameters: text (str) – a Prover9 formula, e.g. "(all X (man(X) -> mortal(X)))". Returns: The formula as a toolkit Node. Raises: Prover9ParsingError – if text is not a well-formed Prover9 formula. Return type: Node