Questions About The Little Schemer

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Answered Questions (2)

Do you believe that this book could be understandable and interesting for someone who is not a programmer nor has ever attempted programming?

Joshua R. Taylor Definitely. It really builds up everything from very basic logic instead of from prior programming knowledge. I wish this was my own introduction to p…moreDefinitely. It really builds up everything from very basic logic instead of from prior programming knowledge. I wish this was my own introduction to programming and computation. Also see this quotation from the preface.

What you need to know to read this book.
The reader must be comfortable reading English, recognizing numbers, and counting.

(less)

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I noticed that in around chapter 7, it defines that (fun? somelist) is #t if the first item in the list is a set, but before claims that a fun? would return #f if it contains a duplicate first item for an element set (e.g. '((a 1) (b 2)) is a fun, but '((a 1) (b 2) (b 3)) is not because b is the first in the second and third element of the list) I didn't see this in the errata, am I missing something?

Joshua R. Taylor The quotation in my version from chapter 7 about fun? is

What is (fun? rel)
where
rel is ((d 4) (b 0) (b 9) (e 5) (g 4))

#t because (firsts rel) is a set
-

…moreThe quotation in my version from chapter 7 about fun? is

What is (fun? rel)
where
rel is ((d 4) (b 0) (b 9) (e 5) (g 4))

#t because (firsts rel) is a set
---See chapter 3

So it doesn't say that '(fun? somelist) is #t if the first item in the list is a set' but says that '(fun? somelist) is #t if (firsts somelist) is a set'. (firsts somelist) is the first item of each of the tuples contained by somelist.(less)

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