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MathGroup Archive 2006

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Re: Searching for a function

  • To: mathgroup at
  • Subject: [mg70854] Re: Searching for a function
  • From: "Bonny Banerjee" <banerjee.28 at>
  • Date: Sat, 28 Oct 2006 23:40:01 -0400 (EDT)
  • Organization: Ohio State University
  • References: <ehv8vp$g6f$>

I am looking for continuous functions only from set A to set B. Sorry for 
not making it clear.


"Bonny Banerjee" <banerjee.28 at> wrote in message 
news:ehv8vp$g6f$1 at
> Is it possible for Mathematica to solve this problem:
> Given sets A and B, does there exist a function from A to B? If yes, what 
> is
> the function?
> Here is an example:
> Let, A = {x such that 0<x<11 and Mod[x,2]==0}
> B = {y such that 0<y<11 and Mod[y+1,2]==0}
> Then, there exists a function from A to B
> y = x - 1
> Thus, is there a way to specify arbitrary sets A, B, and use Mathematica 
> to
> figure out whether there exits a function from A to B or not?
> Thanks,
> Bonny.

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