Question

let a be a non empty set such that AXB = AXC. show that B=C

Answer 1

AXB=AXC which also means that they are congruent.
Therefore, B is congruent to C.
B=C.

I do believe that this is a geometric proof.
I don't remember what the laws are called for it though, which is what it's wanting.
I don't know if that helps any. :/

Answer 2

If this has nothing to do with the question just delete it lol. and sorry.