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Re: Problem 107

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  • whatarewords
    Youre absolutely right I screwed up. I realised this about an hour after my post. So of course the proof is invalid. Here is how i think it will go ... that IF
    Message 1 of 4238 , Nov 3, 1999
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      Youre absolutely right I screwed up. I realised
      this about an hour after my post. So of course the
      proof is invalid. Here is how i think it will go
      :<br><br>Using a bit more theory of Sylow p-subgroups, one shows
      that IF there are 7 Sylow 2-subgroups then there is
      only one Sylow 7-subgroup (there are either 1 or 8 of
      these). I dont think i can show that the case of one
      Sylow 2-subgroup is impossible. Similarly, i think that
      on the assumption that there are 8 Sylow 7-subgroups
      then there must be only one Sylow 2-subgroup. Geez I
      can blab on. What I mean to say is that some groups
      of order 56 have only one Sylow 2-subgroup and some
      have only one Sylow 7-subgroup but they ALL have
      either only one Sylow 2-subgroup or only one Sylow
      7-subgroup. I havent proven this, Im just saying I think it
      is how the proof should go.
    • bqllpd
      ((c/2 + x)^2 + y^2)^(n/2) + ((c/2 - x)^2 + y^2)^(n/2) = c^n where c/2 = x = -c/2 x^2+y^2=r^2 y/r=sin(T) Parametric form x= (+or- (-c^2 * r^2
      Message 4238 of 4238 , May 1, 2011
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        ((c/2 + x)^2 + y^2)^(n/2) + ((c/2 - x)^2 + y^2)^(n/2) = c^n where c/2 >= x >= -c/2
        x^2+y^2=r^2
        y/r=sin(T)

        Parametric form
        x= (+or- (-c^2 * r^2 *(sin^2(T)-1))^(1/2))/c
        y=r*sin(T)
        T=0 to 2*pi Radians (but T=0 to pi/2 is sufficient).

        I had to wait this long for the solving software to catch up.

        Show that for all n>2 and c=rational, and for all x xor y rational, then x and y are never rational.

        Doing so will give a "simple" proof of Fermat's Last Theorem.


        --- In mathforfun@yahoogroups.com, jeshields_98 wrote:
        >
        > I've just joined this club, and I have theorem
        > for<br>you. It's also been posted on Spherical Cow but here
        > seemed more appropriate, so I'll just throw it out
        > here.<br><br>Theorem:<br><br>[y^2 + (c/2 - x)^2]^(n/2) +<br>[y^2 + (c/2 +
        > x)^2]^(n/2) + c^n<br><br>Proposition 1:<br><br>If c can be
        > solved in terms of x,y,n, the result is the equation for
        > the set of curves that applies to triangles of an
        > n-dimensional Pythagorean Theorem. (including the
        > circle)<br><br>Proposition 2:<br><br>If c,y are rational, y not equal to
        > zero, then x is never rational.<br><br>I have no way of
        > knowing if proposition 2 is correct, but I HAVE derived
        > the theorem and proposition 1. I will post the link
        > to this if you would like some time in the future.
        >
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