Thanks! That's what the behavior seemed to indicate. -----Original Message----- From: Vincent Isambart [mailto:vincent.isambart / gmail.com] Sent: Friday, August 17, 2007 12:09 PM To: ruby-core / ruby-lang.org Subject: Re: Kernel#proc and Kernel#lambda > Dumb question of the day: are Kernel#proc and Kernel#lambda identical? Short answer (I checked in the source code): - in 1.8 yes - in 1.9 no I'm pretty sure I've seen some time ago an article or blog post about that, I will try to find it.