@page @node Binding Constructs @chapter Definitions and Variable Bindings @menu * Top Level:: Top level variable definitions. * Local Bindings:: Local variable bindings. * Internal Definitions:: Internal definitions. * Binding Reflection:: Querying variable bindings. @end menu @node Top Level @section Top Level Variable Definitions @node Local Bindings @section Local Variable Bindings @node Internal Definitions @section Internal definitions @node Binding Reflection @section Querying variable bindings @c NJFIXME explain [env] @c docstring begin (texi-doc-string "guile" "defined?") @deffn primitive defined? sym [env] Return @code{#t} if @var{sym} is defined in the top-level environment. @end deffn @c Local Variables: @c TeX-master: "guile.texi" @c End: