question about ch. 5

From: Hany Morcos (hmorcos@cs.bu.edu)
Date: Mon Sep 20 2004 - 15:42:27 EDT 

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From: "Hany Morcos" <hmorcos@cs.bu.edu>
To: "Assaf J. Kfoury" <kfoury@cs.bu.edu>
References: <Pine.SOL.4.20.0409201355310.2039-100000@csa.bu.edu> <414F1C54.B72D68AE@cs.bu.edu>
Subject: question about ch. 5
Date: Mon, 20 Sep 2004 15:42:27 -0400
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Prof. Kfoury,

I have a question in ch. 5. In the definition of the functions scc, plus and
times ... (p 61)
What is the meaning of the braces around some arguments ? how does that
affect the evaluation of the function ?

Thanks,
Hany

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