Super Xueba: Start With A Low Control Score!

Chapter 373 Is the paper quality of the school’s new students this year so high?

The proof questions are as follows…

“Twin primes refer to pairs of prime numbers that differ by 2, such as 3 and 5, 5 and 7, 11 and 13, 17 and 19, 599 and 601… Except for the first pair of twin primes (ie 3 and 5), The first prime number in each twin prime number pair is always one less than a multiple of 6, so the second twin prime number is always one greater than a multiple of 6, and the prime number pair (p, p+2) is called a twin prime number.

Try to prove: in the natural number set, there are infinitely many such twin prime pairs.

which is……

There are infinitely many prime numbers p, and for each p, the number p+2 is also a prime number. ”

this……

It is the content of the first page of the anonymous notebook.

It’s really a proof question.

And the second, third, and fourth, hundreds of pages afterwards, are filled with the proof process and various comments.

E.g……

“1: Feminine composite number theorem and feminine prime number theorem: prime numbers greater than 3 are only distributed in the 6n-1 and 6n+1 series, the composite number in the 6n-1 series is called the feminine composite number…”

“Two: positive composite number theorem and positive prime number theorem, the composite number in the 6n+1 sequence is called the positive composite number…”

“Three: the completely unequal number corresponding to the twin prime number (X)=/=6NM+-(M+-N), it is neither equal to the negative upper and lower two formulas, nor is it equal to the positive upper and lower two formulas…”

“Four: the four equal numbers of yin and yang are in the natural number sequence…”

“five……”

“six……”

“…”

The above is just a summary, occupying dozens of pages.

And behind the notebook…

It is the proof method and the distribution table of twin primes.

And then……

It stopped and proved to be interrupted.

Obviously…

The owner of the notebook did not prove the proof, but it was complicated enough.

If I changed to an average person, I would have fainted after reading more than a dozen pages, but Jiang Nan kept seeing the end with relish.

In other words…

The above is just the first method of proof. It is very complicated, and it feels like the manpower is inexhaustible, so the interruption is normal.

Actually.

This mysterious notebook is very thick.

Although there are many proof methods above, it only occupies half of the notebook.

Jiang Nan turned a few pages back and found a second method of proof.

That is, for all natural numbers k, there are infinite pairs of prime numbers (p, p+2k). When k is equal to 1, it is the twin prime conjecture, and when k is equal to other natural numbers, it is called the weak twin prime conjecture (ie, the weakened version of the twin prime conjecture).

For the weakened version.

There is also a long argumentation process behind.

For example, in 2013, Tang Yizhang found that there are infinite pairs of prime numbers with a difference of less than 70 million for this weakened form without relying on unproven inferences.

In other words, the constant k is 70 million.

But this 70 million is not the end.

It’s just the beginning.

Further on…

This constant k ranges from 70 million.

It has been reduced to 60 million, 42 million, 13 million, 5 million, 400,000…246.

That’s right, it’s 246.

This constant k has been reduced to a very small number. Although the process is complicated, the result is very impressive.

but……

It’s just impressive.

Beyond the notebook, it is completely blank.

Obviously proved to be interrupted again.

“interesting!”

“Both proofs are very interesting.”

Jiang Nan did not hesitate to praise his notebook.

Some people say that mathematics is very boring.

But Jiang Nan never agrees.

In his opinion, this mathematics is definitely one of the most profound, mysterious and fascinating subjects.

For example, the proof of this twin prime conjecture is very interesting (´｡✪ω✪｡｀)!

For a time.

Jiang Nan was obsessed with it and couldn’t help himself.

I don’t know how long it took.

He subconsciously took out his beloved super water-based pen, and wrote and painted in a notebook (*^ω^*).

…

Time passed quickly.

Two o’clock in the afternoon.

Yanjing Airport.

A big sign was erected at the exit of the station… Huaqing University Freshman Reception Desk.

And under the sign.

Five people stood, four men and one woman.

They are volunteers arranged by Huaqing University to receive freshmen at the airport.

have to say.

In this regard, Huaqing has done a very good job.

In fact, not only the airport, but also high-speed rail stations, railway stations, and bus stations all have reception desks.

After all, many freshmen have never been to Yanjing, or even traveled far away. If no one leads the way, not only will they not be able to reach Huaqing University directly, but they will even be stunned in Yanjing City.

As for why five people are received as four men and one woman, no one of you probably doesn’t know ヽ(*´з｀*)ﾉ?

Well known.

Huaqing has no beautiful women, and Yanbei has no school motto.

Although this is just a ridicule.

However, it is recognized that there are fewer girls in Huaqing, no matter whether it is the appearance or the number, they are far inferior to Yanbei.

This is understandable.

After all, Huaqing is an engineering college, and most of its students are boys, while Yanbei has both liberal arts and sciences, which is incomparable.

It is not easy for Huaqing to arrange attractive online girls at every reception point.

certainly.

Although there are few girls in Huaqing, they are not without them.

If you really want to arrange, a few girls are fine, but the male volunteers are too enthusiastic!

In a school where there are more boys and girls, and wolves and less meat, how can some lsp who want to develop target jobs let go of the once-a-year opportunity for freshmen reception?

The reception of freshmen is hard work.

But you can get the moon first when you get close to the water tower, and get in touch with the good-looking school girls for the first time.

As the saying goes…

This first impression is very important.

As long as you be more handsome and show enthusiasm, there is still a high probability that you will win the favor of the school girls.

With this good feeling, can it be far away from the order?

This doesn’t…

Sun Xi, Zhou Ran, Wu Jiu, and Zheng Luo were four people, but they managed to squeeze a bloody road from countless competitors and win this precious opportunity to receive at the airport.

The hair was cleaned up and shiny, the clothes were spotlessly cleaned, and he always smiled what he thought was the most handsome, standing and waiting for the arrival of the elementary school girls.

But the girl next to her looked depressed.

It’s not because the four boys around don’t pay attention to themselves.

In fact.

With her appearance and figure, if she wants to, how many boys are eagerly surrounding her.

after all!

She is a flower of Huaqing!

They are one of the few high-value girls in the school, and they can be regarded as the face of Huaqing.

It’s just that she has always been showy to boys, so the four people around didn’t dare to talk to her.

Everyone is right (ง•̀_•́)ง.

This girl is no one else, but the one who asked Jiang Nan’s math problems in the library before… Lin Qingya.

She was busy preparing for the exam and didn’t plan to come to receive freshmen, but the school arranged her for it.

Naturally, she was depressed.

certainly.

There is no complaint about the school.

After all, she can understand the school’s arrangements.

The male volunteers are too enthusiastic. If she doesn’t come to neutralize it, it would be strange not to scare the school girls away.

“Hello, is this the Hua Qingsheng reception desk?”

As a flight arrived at the station, one of the energetic sisters went straight to the Huaqing reception desk.

“Yes, here it is!”

As the leader of the five-person team, Lin Qingya spoke subconsciously and raised her eyes to look at the people.

In the next second, her pupils shrank.

Just because…

The person standing in front of her is so beautiful, no matter in terms of appearance or figure, they are not inferior to her at all.

But this is not the end, but just the beginning.

Just when this girl just arrived, two long and very nice girls came one after another.

One has neat, short, shoulder-length hair, especially heroic, and the other has a cold face, as if he should not be near.

But no matter what the temperament.

In terms of appearance and figure, she is not weaker than Lin Qingya.

See this scene.

Lin Qingya was shocked directly.

“Is the quality of the freshman papers of the school this year so high? In previous years, there was no one, but this year it was three…”

The words stopped abruptly before they were finished.

Just because…

at this time.

There is another tall girl who has a higher face and a better body, who can be called the allure, and can not find a trace of flaws. The tall girl came to the Huaqing reception point and said politely: “Senior sister, hello, I It was also reported in Huaqing (^_^).”