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1.1 Introduction

The basic elements of LISP.

S-EXPRESSION

primary data struction of LISP

LISP INTERPRETER

constitutes the heart of any LISP system;

EVALUATION

computations on s-expressions

LISTS

major category of s-expressions

ATOMS

major category of s-expressions

First LISP functions, largely concerned with arithmetic computation.

How to store the value of a computation for subsequent use.

How to recover from an error.

Become family with the syntax of LISP.

How to specify and understand complex computations.