I have problems forming a term.
The exercise is:
I kwon that I have to show that:
i.) Associative Law
ii.) Identity Element
iii.) Inverse Element
If I look the term it is clear that I have to form it such that I only have z=z and the other elements x,y,u should be transformed into the identity because of their inverse elements.
I don't know how to form this concretely
Thanks for help