The final result was that he played a not-so-funny prank on everyone before his passing, announcing the news a few months before he died. Really, if he hadn't revealed his proof process, it might have become a century-old mystery like Fermat's.
...
Anyway, when Old Xue called him that day to inform him that his paper had been approved and the journal had already started scheduling it, Qiao Yu felt a little strange about his emotions.
He felt that Old Xue seemed a bit too excited, rambling on about all sorts of things.
Fortunately, Qiao Yu felt that this actually matched his stereotypical impression of Old Xue. Although he appeared to be a quite aloof professor, once he started talking, he was quite chatty and bold, daring to say anything.
In a calm yet exhilarating life, Qiao Yu welcomed his first long holiday in high school, which was also his last long holiday during high school—the winter break of 2024!
