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    Re: Symmedian point -earliest reference in navigation
    From: Herbert Prinz
    Date: 2018 Oct 14, 21:28 -0700

    Hi Bill,

    The Gallica website of the French National Library has an exact facsimile of the book. There, you can find the construction and its analytic proof with the page numbers I have given. It's in chapter 1, par. 13. Cas particulier de trois droites de hauteur.

    Herbert

       
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