"Okay." Zhang Rui seriously stared at the problem.
An Ning delved into various conjectures, tackling one problem after another.
Zhang Rui watched An Ning write, and couldn't help but exclaim, "An Ning, you're really smart! This problem is so difficult, and you solved it step by step!"
"I haven't reached the final conclusion yet, so I'm not sure if my problem-solving approach is correct." An Ning said earnestly.
"I think it's about right."
Soon, An Ning reached the last problem, and various logical proofs were listed on the blank paper.
Zhang Rui said with envy, "I can see your direction for solving the problem is correct. I just can't think of it myself, but once you write it down, I get it too."
"Mm." An Ning nodded.
Zhang Rui took another look and thought, marking and tapping on the problem paper. "An Ning, do you think I should first prove these two problems, then similarly prove the fourth step problem? Would that work?"
