@result{} (⇒): Indicating Evaluation
Use the @result{} command to indicate the result of
evaluating an expression.
The @result{} command is displayed as ‘⇒’ in
Info and HTML and as a true double stemmed arrow in the printed output.
Thus, the following,
(cdr '(1 2 3))
⇒ (2 3)
may be read as “(cdr '(1 2 3)) evaluates to (2 3)”.