
Re: Most theorems in Euclidean geometry are IFF theorems.
Posted:
Sep 4, 2013 8:07 AM


In article <Pine.NEB.4.64.1309032118001.16146@panix1.panix.com>, William Elliot <marsh@panix.com> wrote:
> On Tue, 3 Sep 2013, Lite Beta wrote: > > > Is there a reason why most theorems in Euclidean geometry are IFF theorems? > > They are? My impresion what that most were constructive.
Do you mean, most are constructions? For example, Book I Proposition 1 is: construction of an equilateral triangle.
 G. A. Edgar http://www.math.ohiostate.edu/~edgar/

