Hi,

I have two sets let's say A={a,b,c} and B={x,y,z}. I need to get all possible "bijections" between them. For example {(a:x), (b:y), (c,z)}, {(a:x), (b:z), (c,y)}, {(a:y), (b:x), (c,z)}, etc. I know it is a filtered combination of 3 from the product set of A and B however when it comes to filtering i'm a bit stuck where in my case, a might be equal to b or c.

Any idea or help would be appreciated

Thank you