Lecture overview -- Keyboard shortcut: 'u'  Previous page: The <span>let</span> name binding expression -- Keyboard shortcut: 'p'  Next page: The <span>let*</span> name binding construct -- Keyboard shortcut: 'n'  Lecture notes - all slides together  Annotated slide -- Keyboard shortcut: 't'  Alphabetic index  Help page about these notes  Course home    Introduction to Functional Programming in Scheme - slide 37 : 49

The equivalent meaning of let
We will here understand the underlying, equivalent form of a let name binding construct
(let ((n<sub>1</sub> e<sub>1</sub>) ... (n<sub>k</sub> e<sub>k</sub>)) body-expr)
(<font color = "#0000ff" >(lambda (n<sub>1</sub> ... n<sub>k</sub>) body-expr)</font> e<sub>1</sub> ... e<sub>k</sub>)
how-many-hours-minutes-seconds-with-let.scm
An example of an error in let.

It is now obvious that it is not possible to refer to a name ni from one of the expressions ej