[plt-scheme] Questions about contracts

From: Prabhakar Ragde (plragde at uwaterloo.ca)
Date: Tue Apr 17 19:34:24 EDT 2007

Robby Findler wrote:

> I think that it wasn't possible to express that contract in
> yesterday's contract system. So, I've added a new contract combinator.

PLT: The difficult we do today. The impossible takes a while longer. --PR

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