Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!think.com!snorkelwacker.mit.edu!bloom-beacon!dont-send-mail-to-path-lines From: shivers@bronto.soar.cs.cmu.EDU (Olin Shivers) Newsgroups: comp.lang.scheme Subject: eqness of procedures Message-ID: <9105080039.aa09228@mc.lcs.mit.edu> Date: 8 May 91 04:38:49 GMT Sender: daemon@athena.mit.edu (Mr Background) Organization: The Internet Lines: 10 In the revised report that I have (3.95) (eqv? (lambda (x) x) (lambda (x) x)) is explicitly undefined -- implementations can return either true or false. However, this is never spelled out for (eq? (lambda (x) x) (lambda (x) x)) Has this been settled? Transformations that beta-substitute lambda expressions need to know. -Olin