Since one doesn't program in R5RS (a language definition document), but with real implementations, those tend to add quite a bit to Scheme to make practical pro

Since one doesn't program in R5RS (a language definition document), but with real implementations, those tend to add quite a bit to Scheme to make practical programming possible. Example: https://www.gnu.org/software/mit-scheme/documentation/mit-scheme-ref/index.html https://www.gnu.org/software/mit-scheme/documentation/mit-sc...