Jan 3, 2013 · Be aware that there's already a standard member function in Scheme, so it's a bad idea to define a new procedure with the same name. Here's what the existing member …

Scheme provides a few procedures and special forms for operation on booleans. The procedure not acts as a not operator, and always returns true or false (#t or #f). If applied to #f, it returns …

Oct 27, 2010 · How can I do an equivalent of && or || from Java in Scheme? Also note that not only does: work, but also: vs. (and ...) and (or ...) take any number of arguments.

Boolean: Scheme uses the special identifiers #T and #F to represent true and false. Case is generally not significant (except in characters or strings). Here are some of the basic operators …

Scheme provides functions as procedures. A call of procedure requires applicative order of operands (except the evaluation order among operands is unspecified), which is a case of …

Boolean expressions are expressions that represent a “true” or ”false” value. This sounds trivial, but in fact, although any programming language relies on having some boolean representation …

A predicate is a boolean function which is used to determine membership. Since Scheme is weakly typed, Scheme provides a wide variety of type checking predicates. Here are some of …

Truth values in Scheme, including the boolean values #t (for true) and #f (for false), can be combined with boolean special forms, which have evaluation procedures as follows: (and …

Booleans: Scheme has a strong data type for the Boolean, just like C++ and Java. The Scheme equivalents of true and false are #t and #f, although everything other than #f is understood to …

Mar 11, 2017 · But since you didn't specify lambda calculus in your question, but instead tagged both Racket and Scheme, I will give you an answer that works there. Consider if you have true …