Defining new infix operators

[Tamarah Arons <tamarah@wisdom.weizmann.ac.il>]

Hello,

How can I define my own infix operators?
i.e. I'd like to be able to say elt1 myop elt2 instead of myop(elt1, elt2).

(I know how to overload existing infix operators, my query relates to other
operators. I couldn't find information on this in the manuals.)

Thanks,
Tamarah