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#7766
Joe Marshall (Visitor)
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grammar exercise interpreters & semantics  
You've posted several times that the R5RS DS semantic function curly-E: Exp
 
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#7767
Lauri Alanko (Visitor)
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I guess that's the standard mathematical sloppiness.  I think it can't be helped.  We often want to apply a theorem when we're using the same letters that the theorem uses.  It would be too tedious to always be rewriting the theorem-statements to not conflict with our letters. Computer programmers do
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David Rush (Visitor)
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MFe doesn't have much patience for LC theorizing.  He says that Scheme and most programming languages are call-by-value, so it's only LC_v that we should study.  And yet, DS uses the Scott models of LC.  So you need some LC for DS. You're a bit out of my depth (and memory) here, but I do recall from Felleisen's work that he uses an operational semantics, not a denotational one. The really cool thing about Felleisen at al's work is that they have come so close to replacing the need for DS (unqualified as I am, I am not wholly satisfied with the mutation model inherent in LC_v) david rush
 
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David Rush (Visitor)
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So, for my part
 
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David Rush (Visitor)
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Lauri Alanko < This e-mail address is being protected from spam bots, you need JavaScript enabled to view it responded to me: Often I get turned off by the sloppy notation that mathematics seems to be full of. That may explain a lot here.  I employ the customary sloppy notation of the rough & tumble world of pure Math.  I think you just gotta grit your teeth & fight through it.   This is precisely where you get it wrong. A missionary[1] must *first* learn to speak the language of the natives[2]. You need to use our notational rigor. If nothing else, it will improve the accuracy of *your* logic. david rush 1 - Religious fervor is the only reason I can see for your persistence     in the face of the opposition you have received
 
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David Rush (Visitor)
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Lauri Alanko < This e-mail address is being protected from spam bots, you need JavaScript enabled to view it writes: IIRC, Barendregt's bible has a special notation (a wide, hollow lambda) for mathematical functions, and an ordinary lambda for syntactic structures. ASCII just doesn't accommodate such distinctions easily. Anyone want to move to Unicode? Anyone got a newsreader (implemented in Scheme of course) that supports it? david rush That was *not* a serious question
 
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