If I was a textbook author, I would just state an unsolved problem, show two steps and then end with "the proof is left as an exercise for the reader."
I'm going to solve the whole world peace thing next.
If I was a textbook author, I would just state an unsolved problem, show two steps and then end with "the proof is left as an exercise for the reader."
I'm going to solve the whole world peace thing next.