Trying to remember .... : SchemeThis is a discussion on Trying to remember .... within the Scheme forums in Programming Languages category; I was talking to a friend earlier today, and we ended up talking about s-expressions, scheme, lisp etc. I remember reading in a book, a few years ago, that the basic operations of scheme and lisp could be reduced to a very small (four or so) basic operators. These were represented as single letters (in capitals). I distinctly remember this as I wrote a simple (non-lambda) s-expression parser in Java about the same time. For the life of me I cannot remember what these letters were or what operations they represented. Google has failed me, and as for the book ... | ||||||||
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#1
05-02-2007, 03:55 AM
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 Trying to remember .... I was talking to a friend earlier today, and we ended up talking about s-expressions, scheme, lisp etc. I remember reading in a book, a few years ago, that the basic operations of scheme and lisp could be reduced to a very small (four or so) basic operators. These were represented as single letters (in capitals). I distinctly remember this as I wrote a simple (non-lambda) s-expression parser in Java about the same time. For the life of me I cannot remember what these letters were or what operations they represented. Google has failed me, and as for the book - its somewhere in the deepest regions of my parents' garage. Could anyone please help me rediscover this info ?  |
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#2
05-02-2007, 04:08 AM
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| Re: Trying to remember .... oPless writes: > I remember reading in a book, a few years ago, that the basic > operations of scheme and lisp could be reduced to a very small (four > or so) basic operators. These were represented as single letters (in > capitals). I distinctly remember this as I wrote a simple You may be thinking of S and K, which together with I are four or so. The keyword for search is "combinatory logic", though I suspect that "lambda calculus" would also lead there. See: <http://en.wikipedia.org/wiki/Combinatory_logic> |
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#3
05-02-2007, 04:58 AM
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| Re: Trying to remember .... On May 2, 10:08 am, Jussi Piitulainen <jpiit...@ling.helsinki.fi> wrote: > oPless writes: > > I remember reading in a book, a few years ago, that the basic > > operations of scheme and lisp could be reduced to a very small [snip] > You may be thinking of S and K, which together with I are four or so. > The keyword for search is "combinatory logic", though I suspect that > "lambda calculus" would also lead there. See: > > <http://en.wikipedia.org/wiki/Combinatory_logic> Fabulous! Many Thanks. |
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