[plt-dev] error in teaching languages

That's a change for HtDP/2e BUT as soon as I committed it I realized  
that I needed to accommodate old-style HtDP. Then the power went out :-)




On Sep 20, 2009, at 8:13 PM, Robby Findler wrote:

> I noticed that 'error' changed in the teaching languages. In 4.2.1, it
> used to take two arguments, but now it takes 1. Is that intentional?
> (Sorry if I missed a message somewhere about that.)
>
> Robby
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