After Rebirth, Boss, She is Beautiful and Sassy

Chapter 170 Proved

"How is it? Lao Xu, have you seen the student I told you about?" After learning that Yunsu went to see Xu Heng, Lao Li couldn't wait to call Xu Heng.

Xu Heng thought for a moment and said, "You seem to have a good temperament, but I don't know what your abilities are."

 Lao Li was silent. Did he say the opposite? Isn’t that kid Yunsu supposed to be very capable but have a troublesome temper?

He ignored this weirdness and continued to say good things to Yunsu, "There is no doubt about my student's ability, just watch it."

"I gave her a formula and asked her to prove it within three days. You are not allowed to help."

 “How does that little monster of hers need my help?” Lao Li didn’t care.

“Oh?” Xu Heng didn’t expect Lao Li to speak so highly of that girl.

You must know that at school, Lao Li was the most talented student praised by the department head. If he had not insisted on teaching in a high school, his current achievements might be much higher than his.

 Wait, high school? !

“You just said that girl is your student?”

Yun Dajun knew that the teacher Li she was talking about was the math teacher who took good care of her, so he said nothing and just asked her to rest early.

Yun Dajun sighed, went out and closed the door.

This Lao Li still has such a weird temper after all these years.

Xu Heng looked at the phone that was hung up and couldn't laugh or cry. He wasn't angry yet when he stuffed someone into his head. Why was he angry?

Yunsu nodded wildly at the draft book that was almost full, obviously not listening.

"That's not right. According to her usual temperament, she should have solved the problem of course. Why did she bring it back this time?" Lao Li felt a little strange, "You can't really be stumped, right?"

So in the next few days, Yunsu became busier visibly. She had to stay up late at night after working outside. Yun Dajun knocked on the door and brought in a bowl of white fungus soup.

 Lao Li was suddenly a little worried, but then he thought, if he could really irritate her, he could temper her temper. Thinking of this, Lao Li stopped and asked Yunsu what she was thinking.

"I'll see if you still tell me this when she gets it out." Lao Li snorted coldly and put down the phone.

“Teacher Li introduced me to a professor as an assistant, and I had to pass the professor’s assessment.” Yunsu rubbed her sore wrist from writing with a tired look on her brows.

 “Yes, didn’t I say that?” Lao Li answered matter-of-factly.

"Aren't you a high school teacher? Is she a high school student?" Xu Heng was about to throw down the phone. Was Lao Li crazy? He introduced a high school student to him.

Because he felt that this matter was unreliable, Xu Heng immediately forgot about Yunsu.

Yunsu looked at the Riemann hypothesis before him, also known as the Riemann hypothesis, one of the top ten conjectures in mathematics and an unsolved problem in the history of mathematics.

 So, she had to start everything from scratch and find the ideas and methods of proof by herself.

"No matter how abnormal you are, you can't come here with me! This subject of mine is very important. I know you are proud of your students, but you can't do anything wrong!" Xu Heng felt very tired.

"Why are you still busy? Didn't school just start?" Yun Dajun asked strangely. It was rare to see Su Su so busy because of study.

　　That's it, that's it. Yunsu sighed and finished what he promised on his knees.

“What’s wrong with the high school student? Besides, she’s not a normal high school student at all.”

In the distant interstellar era, the Riemann Hypothesis has long been proven, but Yunsu has never proven it himself. After all, it has been integrated into daily mathematics learning like other mathematical formulas, and no one will prove it. Same as trigonometric functions.

She had a slight headache. Professor Xu really gave her a difficult problem. If she really wanted to prove it, she could prove it. It was just a matter of time, but the key was that what she lacked the most was time.

Old Li looked at Yunsu writing furiously in the back row without raising his head, and felt puzzled. He walked up to her and glanced at her casually, but couldn't see clearly.

 “Still counting?”

Yunsu pressed his eyebrows and said, "Well, it's a bit difficult."

 Lao Li's eyes widened. It was really rare that the words "a little difficult" came out of her mouth. It seemed that this time it was really not that easy.

Thinking of this, his face lit up with joy, and then he immediately controlled his expression and encouraged: "Keep up the good work."

Yunsu glanced at him and realized that he was suppressing a smile, so he ignored it and continued to work hard.

"Okay, let's continue looking at the following question..." Lao Li continued to talk about the topic, with a hint of excitement in his voice.

Yunsudu is also one of the top ten academics in the third year of high school. He secretly glanced at Yunsu's notebook. He couldn't understand it at all. Since when did English have such a big question?

The three days prescribed by Professor Xu Heng passed quickly. Yunsu looked at her progress and saw that she was already more than half way there. She had no choice but to call Xu Heng, hoping to give her two more days.

"It doesn't matter, you can continue to explain it, and I can show it to you then. But my assistant has already implemented it, and I want to say sorry to you." Xu Heng had expected this result.

He didn't say anything, but was willing to answer Yunsu's questions. After all, he was Lao Li's student, so he still had to give him some face.

"It's my problem, you don't have to be sorry." It was his own problem that he failed to fulfill his promise for three days. Yunsu thanked Xu Heng and hung up the phone.

  The calculations were not done within three days, and it was still too much for me to do. The amount of calculations was so great that even Yunsu felt a headache that he had not seen for a long time.

But now that she had reached this point, she would not give up. After taking a deep breath, she continued to pick up the pen.

Over there, when Xu Heng received a call saying that Yunsu had not passed, Lao Li couldn't believe it. Before, it was one thing to gloat over misfortune, but he never thought that Yunsu would not be able to do it. So what on earth is going on?

 He called Yunsu to the office to ask the reason.

"It's coming, it's going to be the day after tomorrow at most." Looking at Yunsu's dark eyes, Lao Li's words were stuck in his throat and he couldn't say it out, "Forget it, forget it, go down, don't be busy, just be good. Rest, look at the dark circles under your eyes falling to the ground."

“Hmm.” Yunsu was still calculating the formula in his mind, and he responded as if he was in a daze.

 After staying up for two more days, Yunsu finally wrote the last sentence in his notebook: "The proof is established."

 She organized all the drafts and proof processes, and spent some time reading them word by word. After making sure that there were no errors or omissions, she finally breathed a sigh of relief.

 The proof process before us consists of two major books.

On the second day, Yunsu went to Landa University with the compiled manuscript. The door of Xu Heng's office was open. He was busy when he heard a knock on the door. He looked up and was stunned.

 “Classmate Yun, what are you doing?”

“Professor Xu, I figured out the problem you gave me before. Although I can’t be your assistant, I still want to show it to you.”

“Oh, yes.” Xu Heng then remembered what he had promised. He looked at his watch and saw that he could still spare some time.

“Give it to me. In fact, it’s the same thing if you show it to Teacher Li. I think he was the most talented student praised by the teacher back then.” Xu Heng had a look of nostalgia on his face.

Yunsu took out two notebooks from his bag and handed them to him. Xu Heng was stunned, why are there so many? That question can be solved in a few pages at most.

Full of doubts, Xu Heng took it and turned to the first page, subconsciously reading out, "About the Riemann Zeta function..."

 Xu Heng stopped suddenly, "What is this?"

 What did he see? Why does it start with the Riemann hypothesis?

Yunsu frowned, "Isn't it the question you gave me?"

 She took out the piece of paper Xu Heng gave her from her bag, and it clearly contained the contents of the Riemann hypothesis.

Xu Heng's eyes widened, "What I gave you is obviously..., no!" Xu Heng opened the drawer and found a piece of paper lying there quietly. The topic on it was the topic he had prepared before.

“Let me think about it, let me think about it.” Xu Heng felt that his mind was a little confused, which meant that he gave the paper with the Riemann hypothesis written on it to Yunsu by mistake.

 No wonder she couldn't calculate it. Not to mention three days, even three or thirty years couldn't be calculated. Xu Heng felt guilty in his heart. This was his problem.

"I'm sorry, it was my negligence. This is the topic for you." Xu Heng was full of apologies.

Yunsu raised her eyebrows and asked, "Is the threshold for becoming an assistant so high now?"

"If you still want to do it, you can take this back and solve it again." Xu Heng decided to give her another chance.

“But, don’t you take a look at this?” Yunsu pointed to the two manuscripts on the table. After all, he had calculated it by himself after spending so many days.

"What?" Xu Heng then recalled what Yunsu said when she came in. She said she had figured it out?

Xu Heng smiled and said, "Classmate Yun, stop joking."

  The Riemann hypothesis was born in 1859. For more than 160 years, countless mathematicians have wanted to prove it, and some have even devoted their lives to it. However, until now, no one has really been able to prove it.

“It is a good thing to have a spirit of exploration.” Xu Heng encouraged her, saying that it is rare for a high school student to have this spirit of exploring world-class problems.

Yunsu was noncommittal, "Maybe you can take another look."

Seeing that Yunsu insisted on doing this, Xu Heng couldn't bear to extinguish her enthusiasm, so let's take a look.

He looked carefully and saw that the girl's handwriting was clear and there was no ambiguity. Xu Heng's face became more and more serious as he read along. He directly touched the pen and paper next to him and started to calculate.

Yunsu was not in a hurry. He sat aside and turned off the sound and played mobile games.

As time passed, Xu Heng was completely immersed in it, until a phone ringing woke him up.

"Professor, the meeting time is coming soon. Over there..." It was a call from his newly appointed assistant. The research team had a meeting, but Xu Heng had not gone.

 “Tell everyone that the meeting has been postponed.”

 “Okay, Professor Xu.” The assistant hung up the phone confused.

Xu Heng has no intention of going to the meeting now, and no one knows the turmoil in his heart.

Although he has only read a third of the two manuscripts, the scary thing is that until now, he has not found any logical loopholes or problems, and he has actually followed her ideas step by step.

Xu Heng had a hunch that he wouldn't find any problems if he continued reading. He was shocked by his terrible thoughts.

He looked at Yunsu who was calmly playing the game with complicated eyes, and said, "Did you really calculate this?"

 “Yes, time is just a bit tight.”

Tight? Xu Heng was in a daze. Could she be talking about the three days she mentioned before?

"You mean you started counting from that day?" Xu Heng's voice was so hoarse that he couldn't listen at all.

 “Yes.” Why did she think about this when she had nothing to do before?

Xu Heng's heart was shaken violently, and he could barely control his expression.

 It only took a high school girl five days to tell him that she had proved the Riemann Hypothesis, but he still didn't think she was talking nonsense. Is this because he is crazy or is the world crazy?

 (End of this chapter)