#### 5.3.13 lambda-list-keywords [Constant Variable]

#### Constant Value::

a list, the elements of which are implementation-dependent, but which must contain at least the symbols &allow-other-keys, &aux, &body, &environment, &key, &optional, &rest, and &whole.

#### Description::

A list of all the lambda list keywords used in the implementation, including the additional ones used only by macro definition forms.

#### See Also::

defun , flet , defmacro , macrolet, The Evaluation Model