From: Nobuyoshi Nakada Date: 2009-09-22T22:03:14+09:00 Subject: [ruby-core:25710] [Bug #2131](Rejected) f(not x) => syntax error Issue #2131 has been updated by Nobuyoshi Nakada. Status changed from Open to Rejected `not' expression is a statement, and a statement can't be an argument without parentheses. ---------------------------------------- http://redmine.ruby-lang.org/issues/show/2131 ---------------------------------------- http://redmine.ruby-lang.org