No matter how Xia Lu guided, Hao Tian was never able to recall any information about Xia Lu.

Then, Hao Tian packed up her personal belongings and left.

Hao Tian's emotional valuation did not appear again in the system.

Xia Lu sat alone on the sofa, and his girlfriend just left?

No, no.

My plan fell through?

It must be the ghost of the system.

"System, it's very unrealistic for you to do this. Even if Hao Tian and I forget each other, we should be able to recall each other again through reasonable and credible evidence. Xia Lu made his request.

There was no reply.

"Once a relationship is sold, that person and I will always be strangers from now on?" Xia Lu frowned, realizing that things were not so simple.

Repeatedly brushing emotional valuations on the same person doesn't seem to have an effect.

In other words, I sold my girlfriend for 60,000 points, and she will never think of me again?

Xia Lu felt a faint sadness in his heart.

At this point, I can only wish her to meet better people.

And I, only by becoming stronger and making better results, can I be worthy of her and myself.

"Brain power, promoted to elite three stars. ”

"Physical function, upgraded to elite two stars. ”

The upgrade is in progress.

The 60,000 points exchanged by Hao Tian's feelings made Xia Lu's mental power and physical functions rise to a stronger level.

Tonight, Xia Lu slept alone.

He was bored.

He felt so irritable.

His body told him that this was the time to make out with a woman.

The girlfriend is gone, but the desire is still there.

Learning during the day and doing it at night, this is normal life.

Just when Xia Lu tossed and turned and couldn't sleep, a new product was swiped out in the system mall: "The core essentials of the hail conjecture, price: 10,000 points." The host's brain power is required to be at least Elite 3 stars (inclusive). ”

It's coming, it's coming!

It's finally here!

Xia Lu jumped up, he was very excited.

Previously, Xia Lu bought the method of nonlinear partial differential equations, and obtained good results in actual combat, and he tasted the sweetness and gained fame and fortune.

In recent times, Xia Lu has been obsessed with hail conjectures.

As a result, the core essentials of the hail conjecture were put on the shelves in the system mall.

10,000 credits, not expensive.

Xia Lu can't wait to buy the core essentials of the Hail Conjecture.

I have 132 points on balance, and I need to get closer to 10,000 points.

There is stock.

But......

The feelings of my kindergarten classmates have been sold out.

My elementary school classmates sold it, my junior high school classmates sold it, and in high school, except for my classmates, everyone else who wasn't too familiar with me was sold.

I had more than 50 classmates in high school, plus the teachers who taught me, as well as the principal and vice principal...... Enough is enough, enough points. I even sold my girlfriend worth 60,000 points.

I'm afraid of a ghost.

If you don't do it, you won't survive if you don't go crazy.

Sell.

Keep selling.

You don't have to attend any class reunions in the future, it's a waste of time.

"Selling my relationship with my high school classmate Wang Hua......"

"Selling my ...... with my high school classmates"

"Selling my relationship with high school teacher Yang Xinkai......"

"Sell my ...... with the high school principal"

Xia Lu sold out almost all of his emotional memories in high school.

only left the emotional memories of four people, Zhao Li'an, Lin Wei, Yang Yueting, and Ma Jielin.

These four people have the deepest friendship with Xia Lu.

Originally, there was Hao Tian.

Hao Tian's feelings have been sold.

System: "...... The equivalent exchange was successful, with a balance of 11,289 points. ”

Xia Lu slept until dawn and slept very deeply.

After waking up, Xia Lu immediately purchased the [Core Essentials of the Hail Conjecture].

"This ...... Is that, that's the core gist?"

The [Core Essentials of the Hail Conjecture] that Xia Lu bought for 10,000 points was converted into A4 paper, which was only about four pages.

This core essentials are highly concentrated essences, and Xia Lu still needs to do a lot of things before he can truly digest this essentials.

For the next few days, Xia Lu closed his door and studied the hail conjecture in his rented house.

The [Core Essentials of the Hail Conjecture] bought in the system is a directional guide for Xia Lu.

He was now convinced that the hail conjecture was valid!

But Xia Lu couldn't completely copy the [Core Essentials of the Hail Conjecture] and publish it publicly.

This essentials need to be expanded and fleshed out to form a paper that others can understand.

The final length of the paper should be at least 30 pages.

At the end of June and the beginning of July, Xia Lu forgot about other mundane things in the world, and he devoted himself to the core of his hail conjecture.

"Suppose an odd number goes through the 3x+1 operation and does not return to the black hole number 1, then there must be another odd number. ”

"If it is proved that there is no number of black holes other than 1, any odd number will be exhausted according to the 3x+1 rule, or all odd numbers belonging to such a class (4k-1)/3, and thus end up in black hole number 1. ”

……

Xia Lu was immersed in his digital world, and the more he calculated, the more excited he became, and he felt that he was about to reach the peak of his life.

Let x be an odd number, k1, k2、...... ki belongs to N.

Therefore, the solution of its x is 2k1+k2+...... ki-1+3*2k1+ki-2+……

Then, after x is calculated in step i, there is no odd number of x!

"Hahaha! Closer to victory!"

Xia Lu fought day and night, and he only had hail conjectures in his heart at this time.

Girlfriend or something, let's go.

Classmates or something, sell it, sell it.

Now I have only one wish, to be the first to prove the hail conjecture in the world.

"3x+1 is necessarily unique, so when x=(43k-2-1)/3, such odd numbers are directly assigned to 1. In addition to 1 directly, other odd numbers are calculated according to the rule of 3x+1, and must be returned to 1 by x=(43k-1-1)/3. ”

Therefore, any positive integer, after the 3x+1 rule, can get 1 and is unique. ”

"In other words, the hail conjecture was proven by me!"

After weeks of calculations, Xia Lu finally proved the hail conjecture.

In fact, what he did was to turn the four-page essentials bought in the system into a proof scheme suitable for most people to review, according to his personal understanding.

Next, what Xia Lu had to do was to write his manuscript proposal into a standard paper.

At this time, it was already summer vacation.

"yes, it's summer vacation, so let's go home first. ”

Xia Lu took his manuscript and laptop, left the faculty dormitory, and took the subway home.

Xia Lu's parents knew that Xia Lu had rented a house at Jiangcheng University. My son has a girlfriend, so it's understandable to rent a house.

"Xia Lu is back. Cui Minhong bought a lot of vegetables, and she said, "You and Hao Tian are on vacation, why don't you invite Hao Tian to our house for dinner tomorrow?"

"No, she's not coming. Xia Lu shook his head and said.