Field Axioms – ground rules

 

http://mathworld.wolfram.com/FieldAxioms.html

 

http://www.math.purdue.edu/~rcp/FieldAxioms.pdf

 

 

Why is (-a) x (-b) = a x b?

     http://mathforum.org/library/drmath/view/51925.html

 

Why can’t I divide by 0?

     http://barnyard.syr.edu/divbyzero.pdf