Four-Color Map TheoremDate: 3 Apr 1995 22:45:50 -0400 From: Everett Boyer Subject: Four color map theorem? Dear Dr.Math, I hear the famous Four-color map theorem was either proved or disproved, and that extensive computer effort was required. So... (A useful answer to question 3 might be sufficient.) (1) Exactly how is the theorem properly phrased? (2) Is it true, false, or still undecided? (3) Where (preferably as an on-line URL) might the (proposed) proof and the associated algorithm be obtained? Thanks in advance, Everett Boyer Date: 14 Apr 1995 14:37:21 -0400 From: Dr. Ken Subject: Re: Four color map theorem? Hello there! Well, after a long time spent searching (which is okay, because I found a new math history server) I found this URL about the 4-color theorem: http://www-groups.dcs.st-and.ac.uk:80/~history/HistTopics/The_four_colour_theorem.html Check it out, it's pretty cool! By the way, the theorem is considered true and proven. -Ken "Dr." Math |
Search the Dr. Math Library: |
[Privacy Policy] [Terms of Use]
Ask Dr. Math^{TM}
© 1994-2013 The Math Forum
http://mathforum.org/dr.math/