Tom solved the a^4 problem!
Jun. 8th, 2005 08:39 pmRemember that old thing, that annoyed everyone? Well, Tom solved it!
Problem: Given a ring R (not necessarily with identity) st a4=a ∀a∈R, prove R is commutative.
( Tom's solution )
Problem: Given a ring R (not necessarily with identity) st a4=a ∀a∈R, prove R is commutative.
( Tom's solution )
