cplusplus/draft — pull request #154 by FrankHB (2013-07-10 22:48:25+00:00)
Title: Editorial fix in [namespace.def]

An identifier makes an entity defined only through several known kind of declarations. Here the word "defined" would make "typedef int X; namespace X{}" unintentionally well-formed, because the name "X" is introduced by a non-definition(typedef declaration) and nothing named "X" is defined previous the namespace definition.