@cindex @samp{#@var{n}=} read syntax
@cindex @samp{#@var{n}#} read syntax
- In Emacs 21, to represent shared or circular structure within a
+ In Emacs 21, to represent shared or circular structures within a
complex of Lisp objects, you can use the reader constructs
@samp{#@var{n}=} and @samp{#@var{n}#}.