From: yyzan9 at gmail.com (yyzan9 at gmail.com) Date: Fri Jul 3 10:47:34 EDT 2009 

The calculus called arrowmultiply is defined as : m!n := m*m*...*m (there are n integer to multiply ) m!!n := m!m!...!m (there are n integer to multiply ) m!!!n := m!!m!!...!!m (there are n integer to multiply )  ying yun zang ?  next part  An HTML attachment was scrubbed... URL: <http://lists.racketlang.org/users/archive/attachments/20090703/1521dc3b/attachment.html>
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