[plt-scheme] HTDP 25.2 Fig 68 - minor oversight?

From: wooks . (wookiz at hotmail.com)
Date: Mon Jul 24 19:14:18 EDT 2006

The code in the diagram uses the Scheme if construct in the definition of 
smaller-items and larger-items. Although it's intuitive I don't recall it 
being introduced in text prior to this point.




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