Binding means that allotting a memory location to a variable and storing a value in it.

A procedures supplied by user in terms of lisp primitives is called user-defined procedure.

Because the procedure name is always in the same place, no matter how many arguments are involved.

Lisp displays a prompt to to tell that it waiting for something to enter.

#' makes it possible to produce nameless procedures into lexical closures.

Procedure calls do not produce nested fences.

Lets helps to produce nested fences.

The labels primitive enables you to define one procedure inside another.

Encapsulation makes it possible to define sophisticated generator procedures that produce new values each time they are called.

All initialization forms are evaluated before before inital binding.

The first part of a DO is always occupied by a list of parameters that are all bound to initial values.

If a dotimes form has no result form, the dotimes will return nil and its purpose is to arrange for side effects.

Dotimes provides a way to write simple counting-oriented iteration procedures.

Iteration is said to be one kind of control strategy and it is a general strategy for controlling how a computation evolves.

Lisp provides a way to compile individual procedures by the use of compile.

In Syntax; source file specification comes instead of target-file. So, compile-file is the correct syntax.

Load primitive is used to read from files.

Thus the syntax of ED primitive is given.

Compile-file produces a binary file full of unintelligible computer instructions expressed by a bit sequences.

Lisp compiler is used to evaluate a compile-file form.