[plt-scheme] how to have #\u03BB (lambda) working in htdp languages

From: Skeptic . (skeptic2000 at hotmail.com)
Date: Wed Aug 12 22:13:57 EDT 2009

What would be the best way to add support for the #\u03BB (lambda) character to htdp advanced student language ?

(of course by support I mean to define procedures)
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