The book contains an introduction to the Lambda Calculus as the theoretical foundation of all 'Functional Programming' languages. The Lambda Calculus has been created by the American logician Alonzo Church in the 1930's and is documented in his works published in 1941 under the title 'The Calculi of Lambda Conversion'. Alonzo Church wanted to formulate a mathematical logical system and had no intent to create a programming language. The intrinsic relationship of his system to programming was discovered much later in a time in which programming of computers became an issue. The book 'A++ and the Lambda Calculus' also contains a brief introduction to the educational programming language A++, a minimal programming language that has been built with the Lambda Calculus as its foundation. The purpose of A++ is to serve as a learning instrument rather than as a programming language used to solve practical problems. A++ is supposed to be an excellent tool to become familiar with the core of programming and with programming patterns that can be applied in other languages needed to face the real world. A++ is presented in greater detail in the books: 'A++ The Smallest Programming Language in the World' (978-3-7469-3021-3) and in 'Programmieren lernen mit A++' (978-3-7469-3199-9).

About the Author

Biografische Daten: Georg P. Loczewski (*1939 in Sch�nlanke in Pommern) fl�chtete als Kind mit seiner Mutter und Schwester nach Reit im Winkl in Bayern. Von 1959 bis 1964 studierte er Philosophie und Theologie in Reisach am Inn (Aszese und Mystik im Noviziat der Unbeschuhten Karmeliten) und in Regensburg (Philosophisch-Theologische Hochschule). Danach studierte er einige Semester Physik an der Technischen Hochschule M�nchen und wechselte dann in das Berufsleben, in dem er von 1970-1998 auf dem Gebiet der Informatik als Ausbilder f�r systemnahe Programmierung und Methodik der Programmierung, als Education Consultant und als Systemprogrammierer in Deutschland und in den USA f�r die Computerfirmen Honeywell, Honeywell Bull und Bull arbeitete. 1980 ver�ffentlichte er das Buch Logik der Strukturierung von Programmen im R. Oldenbourg Verlag. Sp�ter im Ruhestand folgten die B�cher Programmierung PUR (2003) und A++, The Smallest Programming Language in the World (2005). Im Ruhestand hat er f�r den S. Toeche-Mittler-Verlag und die internationale Versandbuchhandlung derselben Firma in Darmstadt die E-Commerce-Plattform aufgebaut (http: //www.net-library.de). W�hrend des gr��ten Teils seines Berufslebens und danach hat er sich f�r katholische Spiritualit�t interessiert, besonders f�r die Spiritualit�t des Karmel und ganz speziell f�r die Spiritualit�t des hl. Johannes v. Kreuz. Mit seiner ganzen Familie hat er eine pers�nliche Beziehung zu M�nchen der Kartause La Valsainte in der Schweiz aufgebaut und gepflegt. In den letzten 25 Jahren hat er mehrere kleine Schriften verfasst, die der kontemplativen Spiritualit�t gewidmet sind, die jedoch nicht ver�ffentlicht wurden. In K�rze wird allerdings ein B�chlein mit dem Titel 'Emmanuel --- Gott mit uns' im Bernardus-Verlag erscheinen. Die ISBN lautet: 978-3-8107-0265-4. Auf seiner Home-Page http: //www.alpha-bound.de befinden sich mehrere Web-Publikationen. Hingewiesen sei ganz besonders auf den 'Multi-Lingual Bible Server', der die gesamte Bibel in 7 verschiedenen Sprachen anbietet, darunter auch Russisch, Griechisch und Hebr�isch.

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