Paul Mönnig – Grundkurs der Mathematik (modern math for German Abitur / Baccalaureat)
Neuss: Bruno Buike 2023 – 237 p. – Reprint (with legal ok) der Edition: Diesterweg Salle 1970, 2.Aufl – vergrössert auf Din A4 – with preface of editor – based on formal logics in Russel-Whitehead-notation and on metamathematics as of 1970 and after Goedel – one of the VERY FEW coursebooks based on today FORMAL LOGICS and dedicated for the next intergalactical generation.