Scheme/Racket

Keywords

• car: returns the first element of a list
• cdr: returns everything but the first element
• cons: takes two arguments; if the second is a list, adds the first element to the front. if the second is not a list, creates a dotted pair
• cond: conditional
• lambda: defines an anonymous function

Concepts

dotted pair: two values separated by a dot, eg. (a . 2)