Chapter 51 1+1=?

Chapter 51 1+1=?

The next day, Wednesday, in the classroom of Class 2, Grade 2, No. 6 Middle School.

Chen Yu leaned on his seat, staring intently at the head teacher who was lecturing, writing and drawing on his notes from time to time.

"Buzz! Buzz!"

Suddenly, the mobile phone in his pocket vibrated, and he took out the mobile phone to check, and found that it was a short message from the "superior space-time salesman".

[Overtime promotion: "Mr. Chen, congratulations! Your real fans have exceeded 30,000."]

Chen Yu was taken aback for a moment, then typed excitedly and quickly.

【Chen Yu: "Did you break through just now? Thirty thousand?"】

【Overtime promotion: "Yes, congratulations."】

【Chen Yu: "It's only Wednesday, can it break through 40,000 by next Monday?"】

[Overtime promotion: "The possibility is still very high. The homepage recommendation effect of the Bilibili platform is very good. It's a pity that all the news, reprints, and discussions about you on the Internet have been removed from the shelves, otherwise the increase in fans will be even higher." 】

【Chen Yu: "Am I blocked by the whole network?"】

[Overtime promotion: "Almost. Since the reposting, news, posts and discussions on other platforms or media are not included in our company's legitimate income, we cannot stop them. But it doesn't matter. After the trial period is over, your live broadcast and The video can be released on multiple platforms, and any external force will only get weaker and weaker to ban you.”]

【Chen Yu: "Then it's hard work for you."】

[Transdimensional promotion: "It's not hard work, our interests are the same, these are what I should do."]

【Chen Yu: "I am really touched by the dedicated employees of the galaxy. Is the product application for the fourth phase ready?"】

[Overtime promotion: "The process has already begun, this is a very interesting product, you will definitely like it."]

【Chen Yu: "As long as I can break through 50,000 fans, I can bring that girlfriend back. (Withdraw)"】

【Chen Yu: "As long as I can break through 50,000 fans, I will like it."】

[Transdimensional promotion: "(smile)"]

After quitting WeChat and taking back his mobile phone, Chen Yu sighed in satisfaction and confusion, picked up his notes, and continued to listen to the teacher's lecture.

Now, all the knowledge points he missed have been filled in, and there will be no feeling of incomprehension. And I vaguely noticed that the teaching level of the head teacher seems to be very low...

"Ring ring ring..."

Twenty minutes later, the bell rang for the end of get out of class. The head teacher put away his lesson preparation notebook, put his hands on the podium, scanned the audience, and said, "Students, before get out of class ends, I want to inform you about something."

"Hula."

A few male students who were about to get up and rush out sat back awkwardly.

"Next Saturday, our No. 6 Middle School will hold an autumn sports meeting. Whether they are athletes or not, every student must come to fight for the honor of the class and the school! Cheers! Many leaders from the education department and even the capital city have come to this sports meeting Ladies and gentlemen, everyone must maintain good discipline. Show the demeanor of our Sixth Middle School!"

After the words fell, the head teacher was silent for a moment: "What are you doing in a daze? Applause!"

"Crack, clap, clap..."

"Very good, get out of class is over!"

The head teacher waved his hand, and the students ran out of the classroom one after another.

"Chen Yu, don't go, come here."

When Chen Yu was about to walk out of the classroom to get some air, the teacher in charge ticked off his fingers.

"What's the matter, teacher?"

"That's how it is. Considering your results in this monthly exam, Principal Pang is willing to admit defeat, and at the same time decides that if you can get the first place in the school in the next monthly exam, he will never force you to learn physical education again."

"No. 1 in the whole school?" Chen Yu was stunned: "Isn't this span a bit big?"

"Anyway, the situation is such a situation, and the matter is such a matter. If you have any doubts, tell Principal Pang."

After all, the head teacher picked up the textbook and turned to leave.

"I must say it! Isn't the number one in the school nonsense!" Chen Yu followed behind the head teacher, walked out of the classroom aggrieved, and was about to debate with Principal Pang.

"Don't look for it now, the principal went to dinner with the leader, and went with the dean." The head teacher turned to glance at Chen Yu and said.

"real?"

"Why lie to you, you can go in the afternoon."

At this moment, the teacher of the next math class of the second class came over and greeted Chen Yu and the head teacher: "Good morning."

Seeing the math teacher, Chen Yu's eyes lit up, and he hurried forward: "Teacher, are you busy now? I still don't understand the final question of the last monthly exam, can you explain it to me?"

Hearing this, the math teacher narrowed his eyes slightly.

The class teacher on the side also narrowed his eyes.

The two looked at each other, nodded to each other unobtrusively, and completed a "spy-level" information exchange...

"Okay, no problem. If you don't know any questions, the teacher will do it for you now." The math teacher patted his chest generously.

"The final question! I didn't understand the logic in it."

Chen Yu dragged the math teacher to the podium, then ran to his seat to find the math test paper, then hurried back, put the test paper in front of the teacher, and pointed to the last math problem: "That's it, I don't understand."

"Oh." The math teacher frowned and nodded: "This is a question."

"Yes. How should I solve it? What is the train of thought?"

"This question..." The math teacher reviewed the question carefully and spread his hands: "I can't do it either."

"?"

"It's too difficult. None of the teachers in the school can do it."

"Why the hell is it coming out?!" Chen Yu roared.

"It's because we can't, so we came out." The math teacher scratched his head: "I want to see if there are other student unions, and then I found that the students can't either."

Chen Yu: "..."

"Student Chen Yu, don't look at me like that. No one is perfect, and Einstein also has problems, right? You can't lock men up by force."

"You think you are quite reasonable?"

"Anyway, I just don't know how to do it." The math teacher put his hips on his hips: "Why can I solve the problem? Isn't the three major conjectures in the mathematics world also unsolvable?"

Chen Yu: "..."

"Won't."

"...Okay. Okay, okay." Chen Yu took a deep breath, nodded, and pointed to the penultimate question: "What about this question? This question is also difficult, and I can't grasp my train of thought."

"This question." The math teacher watched it carefully for a while: "No."

"What the hell are you..."

"It's too difficult. It seems that the number one student in our No. 6 Middle School got the answer right."

"Students can answer correctly, can't you?"

"Then some students can still dance to the Pure Land of Bliss, why can't you?"

"How can this be the same thing?!"

"Anyway, I don't know that question."

"Okay, okay. Awesome." Chen Yu turned over a page of the test paper, pointed to a fill-in-the-blank question: "What about this one?"

"Won't."

"this?"

"No."

"this……"

"Oh my god, I won't."

"..." Chen Yu was silent, and after a while: "How much is 1+1 equal?"

The math teacher's eyes lit up, he reached out and took out a piece of chalk, and wrote formulas on the blackboard frantically!

[1. 0 is a natural number; 2. Every definite natural number a has a definite successor x', and x' is also a natural number; 3. If b and c are the successors of the natural number a, then b = c; 4. 0 is not the successor of any natural number; 5. Let S be a subset of the natural number set, and (1) 0 belongs to S; (2) If n belongs to S, then n' also belongs to S. 】

[...x is not in the range of f; f is an injection; if x∈A and "a∈A implies f(a)∈A", then A=X...]

[...N (natural number set) is not an empty set; there is a one-to-one mapping from N to N...]

[... If a subset P of N contains both elements that are not successors and successors that contain every element in the subset, then this subset is equal to N...]

[Proof of 1+1:

∵1+1's successor is the successor of 1's successor, which is 3,

∴ The successor of 2 is 3.

According to Peano’s axiom ③, we can get: 1+1=……]

Under Chen Yu's shocked gaze, the math teacher spent five minutes writing a formula on the blackboard, then hugged his shoulders and meditated again for a minute, and wrote the number after =.

[Available: 1+1=...13,627. 】

Chen Yu was dumbfounded.