| Although not nearly as intriguing as the bugs in early definitions of EVAL , this bug is still interesting example of vitality and robustness: it is typical specimen, found on quite visible place, yet it passed unnoticed by two authors and few reviewers. |
(Unrelated: if you'd like to see the solution of the third problem, it is not in Evolution of Lisp ; instead, you're directed to MIT AI "memos" AIM-452 and AIM-453 .) |
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