[plt-scheme] v4 questions

From: Jens Axel Soegaard (jensaxel at soegaard.net)
Date: Sun Mar 30 09:27:52 EDT 2008

Mark Engelberg wrote:

> 5. OK, this has been bugging me for a while... why is the "member"
> function not "member?".  It's a predicate, right?

The standard predicates with names ending in ? all return booleans.
The function "member" on the other hand returns a useful non-boolean

Jens Axel Søgaard

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