/// \brief member_at::side idiom to access relation values and types using metaprogramming.
/**
-This tags are used to specify which member you want to acces when using a metafunction over
+This tags are used to specify which member you want to access when using a metafunction over
a symmetrical type. The idea is to be able to write code like:
\code
/// \brief Member at left tag
/**
- See also member_at, rigth.
+ See also member_at, right.
**/
struct left {};