3 Evaluation and Compilation  3.1 Evaluation 3.1.2 The Evaluation Model 3.1.2.1 Form Evaluation
3.1.2.1.3 Self-Evaluating Objects
A form that is neither a symbol nor a cons is
defined to be a self-evaluating object. Evaluating
such an object yields the same object
as a result.
Certain specific symbols and conses might also happen
to be "self-evaluating" but only as a special case of a more
general set of rules for the evaluation of symbols and
conses; such objects are not considered to be
self-evaluating objects.
The consequences are undefined if literal objects (including
self-evaluating objects) are destructively modified.
3.1.2.1.3.1 Examples of Self-Evaluating Objects
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