<div dir="auto">Some applied math is real math by my definition as is some CS.  Jon, Hywel and I were reading Schutz on general relativity.  It was close to being "real math"  but I was quite frustrated.  He talks a good deal about the metric tensor but never really defines it.  As far as I can see it's neither a metric nor a tensor according to the definitions I learned in math classes.<div dir="auto"><br></div><div dir="auto">Frank</div><div dir="auto"><br><div data-smartmail="gmail_signature" dir="auto">-----------------------------------<br>Frank Wimberly<br><br>My memoir:<br><a href="https://www.amazon.com/author/frankwimbely">https://www.amazon.com/author/frankwimbely</a><br><br>My scientific publications:<br><a href="https://www.researchgate.net/profile/Frank_Wimberly2">https://www.researchgate.net/profile/Frank_Wimberly2</a><br><br>Phone (505) 670-9918</div></div></div><br><div class="gmail_quote"><div dir="ltr">On Sat, Nov 3, 2018, 10:06 PM Nick Thompson <<a href="mailto:nickthompson@earthlink.net">nickthompson@earthlink.net</a> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang="EN-US" link="blue" vlink="purple"><div class="m_-9061082992977570175WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Yeah.  I am not on my “<b><i><u>R</u></i></b>eal” kick today.  “real” is good enough for me.  “real” in the sense of honorable, respectable, normative, proper, honest, genuine, true to itself, etc.  But on your definition, applied math wouldn’t be “real”, right?  CS wouldn’t be real math, either.  To me, math is “just” the development or use of formal systems to advance knowledge.  On that understanding, the use of any kind of formal system to model a natural system is “real math.”  I take it you would disagree. <u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Nick <u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Nicholas S. Thompson<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Emeritus Professor of Psychology and Biology<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Clark University<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><a href="http://home.earthlink.net/~nickthompson/naturaldesigns/" target="_blank" rel="noreferrer"><span style="color:#0563c1">http://home.earthlink.net/~nickthompson/naturaldesigns/</span></a><u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Friam [mailto:<a href="mailto:friam-bounces@redfish.com" target="_blank" rel="noreferrer">friam-bounces@redfish.com</a>] <b>On Behalf Of </b>Frank Wimberly<br><b>Sent:</b> Saturday, November 03, 2018 6:23 PM<br><b>To:</b> The Friday Morning Applied Complexity Coffee Group <<a href="mailto:friam@redfish.com" target="_blank" rel="noreferrer">friam@redfish.com</a>><br><b>Subject:</b> Re: [FRIAM] This is how the Japanese multiply. (Math, not biology)<u></u><u></u></span></p><p class="MsoNormal"><u></u> <u></u></p><div><p class="MsoNormal">"Real" and "real math" are two different things.  My definition of real math is exposition of the form "definition, theorem, proof".  When you figure out what "real" means, let me know.<u></u><u></u></p><div><p class="MsoNormal"><u></u> <u></u></p></div><div><p class="MsoNormal" style="margin-bottom:12.0pt">Frank<u></u><u></u></p><div><p class="MsoNormal">-----------------------------------<br>Frank Wimberly<br><br>My memoir:<br><a href="https://www.amazon.com/author/frankwimberly" target="_blank" rel="noreferrer">https://www.amazon.com/author/frankwimberly</a><br><br>My scientific publications:<br><a href="https://www.researchgate.net/profile/Frank_Wimberly2" target="_blank" rel="noreferrer">https://www.researchgate.net/profile/Frank_Wimberly2</a><br><br>Phone (505) 670-9918<u></u><u></u></p></div></div></div><p class="MsoNormal"><u></u> <u></u></p><div><div><p class="MsoNormal">On Sat, Nov 3, 2018, 6:14 PM Nick Thompson <<a href="mailto:nickthompson@earthlink.net" target="_blank" rel="noreferrer">nickthompson@earthlink.net</a> wrote:<u></u><u></u></p></div><blockquote style="border:none;border-left:solid #cccccc 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in"><div><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">What!???? How could any mathematics not be REAL!  FRANK!  Defend yourself!</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">NIck</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span><u></u><u></u></p><div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Nicholas S. Thompson</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Emeritus Professor of Psychology and Biology</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Clark University</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><a href="http://home.earthlink.net/~nickthompson/naturaldesigns/" target="_blank" rel="noreferrer"><span style="color:#0563c1">http://home.earthlink.net/~nickthompson/naturaldesigns/</span></a></span><u></u><u></u></p></div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"> </span><u></u><u></u></p><div><div style="border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Friam [mailto:<a href="mailto:friam-bounces@redfish.com" target="_blank" rel="noreferrer">friam-bounces@redfish.com</a>] <b>On Behalf Of </b>Prof David West<br><b>Sent:</b> Saturday, November 03, 2018 5:52 PM<br><b>To:</b> <a href="mailto:friam@redfish.com" target="_blank" rel="noreferrer">friam@redfish.com</a><br><b>Subject:</b> Re: [FRIAM] This is how the Japanese multiply. (Math, not biology)</span><u></u><u></u></p></div></div><p class="MsoNormal"> <u></u><u></u></p><div><p class="MsoNormal"><span style="font-family:"Arial",sans-serif">I have a couple of books on "Vedic Math" - a large set of techniques for how to calculate. This technique was among them.  Showed the books to Frank once, he was not impressed, "not real mathematics."</span><u></u><u></u></p></div><div><p class="MsoNormal"><span style="font-family:"Arial",sans-serif"> </span><u></u><u></u></p></div><div><p class="MsoNormal"><span style="font-family:"Arial",sans-serif">davew</span><u></u><u></u></p></div><div><p class="MsoNormal"><span style="font-family:"Arial",sans-serif"> </span><u></u><u></u></p></div><div><p class="MsoNormal"> <u></u><u></u></p></div><div><p class="MsoNormal"> <u></u><u></u></p></div><div><p class="MsoNormal">On Sat, Nov 3, 2018, at 9:02 AM, Tom Johnson wrote:<u></u><u></u></p></div><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><div><p class="MsoNormal"><a href="https://www.facebook.com/637328420/posts/10156877698343421/" target="_blank" rel="noreferrer">https://www.facebook.com/637328420/posts/10156877698343421/</a><u></u><u></u></p></div><div><p class="MsoNormal">============================================================<u></u><u></u></p></div><div><p class="MsoNormal">FRIAM Applied Complexity Group listserv<u></u><u></u></p></div><div><p class="MsoNormal">Meets Fridays 9a-11:30 at cafe at St. John's College<u></u><u></u></p></div><div><p class="MsoNormal">to unsubscribe <a href="http://redfish.com/mailman/listinfo/friam_redfish.com" target="_blank" rel="noreferrer">http://redfish.com/mailman/listinfo/friam_redfish.com</a><u></u><u></u></p></div><div><p class="MsoNormal">FRIAM-COMIC <a href="http://friam-comic.blogspot.com/" target="_blank" rel="noreferrer">http://friam-comic.blogspot.com/</a> by Dr. Strangelove<u></u><u></u></p></div></blockquote><div><p class="MsoNormal"><span style="font-family:"Arial",sans-serif"> </span><u></u><u></u></p></div></div></div><p class="MsoNormal">============================================================<br>FRIAM Applied Complexity Group listserv<br>Meets Fridays 9a-11:30 at cafe at St. John's College<br>to unsubscribe <a href="http://redfish.com/mailman/listinfo/friam_redfish.com" target="_blank" rel="noreferrer">http://redfish.com/mailman/listinfo/friam_redfish.com</a><br>FRIAM-COMIC <a href="http://friam-comic.blogspot.com/" target="_blank" rel="noreferrer">http://friam-comic.blogspot.com/</a> by Dr. Strangelove<u></u><u></u></p></blockquote></div></div></div>============================================================<br>
FRIAM Applied Complexity Group listserv<br>
Meets Fridays 9a-11:30 at cafe at St. John's College<br>
to unsubscribe <a href="http://redfish.com/mailman/listinfo/friam_redfish.com" rel="noreferrer noreferrer" target="_blank">http://redfish.com/mailman/listinfo/friam_redfish.com</a><br>
FRIAM-COMIC <a href="http://friam-comic.blogspot.com/" rel="noreferrer noreferrer" target="_blank">http://friam-comic.blogspot.com/</a> by Dr. Strangelove<br>
</blockquote></div>