Mark writes:
“This tattoo is the Zermelo-Fraenkel with Choice axioms of set theory. These nine axioms are the basis for ZFC set theory, which is the most commonly studied form of set theory and the most well known set of axioms as well. From these nine axioms, one can derive all of mathematics. These provide the foundation of mathematics, a field that you can likely tell that I love dearly.”
Carl: Mark is making an encore appearance at the Emporium. See his Y combinator here…






August 18th, 2008 at 4:11 am
Carl, bad link to the “Y combinator”, not found.
August 18th, 2008 at 10:56 am
Thanks–link fixed!
August 28th, 2008 at 2:50 pm
Carl, the link’s still (again?) kaput.
January 14th, 2009 at 8:00 pm
that’s one hell of a cheat sheet! (8
February 21st, 2009 at 7:08 am
You missed the day on the date for Y combinator. http://blogs.discovermagazine.com/loom/2008/02/17/y-combinator/
June 7th, 2009 at 7:02 pm
What Damage said – Couldn’t he just use biro like everyone-else?