Gun x Gun (My math teacher gave me an assignment for a Cartesian product)

[ChaoChao]

My math teacher gave me an assignment for a Cartesian product
What happens if you multiply a gun by a gun? I've been racking my brains over this for the third day, I would appreciate any hints ?

 

[stapel]

My math teacher gave me an assignment for a Cartesian product
What happens if you multiply a gun by a gun? I've been racking my brains over this for the third day, I would appreciate any hints ?

A Cartesian product is not multiplication, but a producer of ordered pairs. So kindly please reply with the set(s) represented by "gun", along with your thoughts (based on discussions, etc, in your textbook and in your classroom) for what might be meant by ordered pairs of the elements in this set.

Thank you!