> On 28 May 2018, at 21:47, Robert Schmaus <robert.schm...@web.de> wrote: > > I agree with you - when I looked at the Scheme functions (mainly as Snippets) > I saw that it's not very complicated. It was just when I tried to customise > something that I really had to do a lot of guesswork how to get this to work. > Does this expression return something or not? What does "lambda" mean, why > does this expression need a context and where do I get it from?
The lambda comes from the book by Alonzo Church, "The Calculi of Lambda-conversion", which is a logic theory about function applications, but it is unknown why he choose the letter lambda, though a prefix notation makes it easier to carry out formal proofs. It then caught on in the computer community. Instead of a prefix lambda notation, one can use the infix "mapsto" notation, and there are some examples here: https://en.wikipedia.org/wiki/Lambda_calculus _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
