YAMT: How can I prove that "every tree has a unique root"..

[Koenigsegg]

I don't even see how this is true. Can't you have two trees with the same roots but different nodes?

 

[apologetic]

Prove the slippery slope is a reasonable argument, and there you have it.

 

[TheLonelyPhoenix]

Well, if two trees have the same root, then they're both branches of the same larger tree. If they are really two seperate trees, then they can't trace back to the same root.

I think.