User blog comment:Eners49/The secret 0th hyper-operator?/@comment-2601:142:2:EC49:A496:CA1D:3DA2:B5DD-20180728144329/@comment-25601061-20180728184047

@Eners49

Sorry, but your definition doesn't work - x ?? x should be x ? 2, but x ? x = x+1/x =! x ? 2 = x+1.