[Suppose G is a finite group, α is an element in G, and the order of α is 12. Proof: The order of an element in G must be divisible by 12.]
Evan, a short man with glasses from the International University Alliance, first gave Luo Shiqiao from the Chinese University Alliance a math problem at the doctoral level. Su Bai looked at the problem quietly and had already started to verify the proof in his mind.
Before obtaining the skill of Mathematics Master, Su Bai felt like he was reading a book written in heaven when he saw such questions.
Not to mention such a question, Su Bai couldn't even solve a linear equation of two variables.
But now, Su Bai can easily get the answer in his heart.
I feel so refreshed!
“Suppose there exists an element b in G whose order cannot divide 12, that is, |b| is relatively prime to 12.
According to Lagrange's theorem, if integers m and n are relatively prime, then we can find integers x and y such that mx + ny = 1.
"Haha, that's it?"
After quickly going over the answer in his mind, Su Bai calmly crossed his arms and continued to watch the show.
Principal Ren, who was sitting next to Su Bai, had actually been observing Su Bai's expression and movements. It was really strange that Su Bai took the initiative to ask to participate in the math competition!
So when the other party asked a question, Ren Boquan wanted to see Su Bai's reaction. Su Bai was the last contestant to appear. Because it was an exchange competition, the rules were not very strict. If Su Bai didn't want to embarrass himself before going on stage, he could change people.
However.
There was no panic or nervousness on Su Bai's face. From beginning to end, Su Bai frowned and thought for a while when he saw the question, then his brows relaxed and he looked like it was nothing. From then on, he looked confident.
Ren Boquan: “.”
This kid is really good at pretending!
Yesterday, Ren Boquan also left Su Bai alone to ask what topic Su Bai was preparing for and whether he needed help from the professors in the college.
But Su Bai just waved his hands, as if it was totally unnecessary, which made Ren Boquan speechless.
He was really afraid that Su Bai would go up and give others a junior high school math problem. To be honest, that would be quite embarrassing.
The math competition was indeed far less entertaining than yesterday's basketball. Basically, you could only see the players on both sides concentrating on solving the problems. Although the camera would also capture their drafts of the solutions, to be honest, 99.99% of netizens would not be able to understand this.
After Su Bai solved the two questions silently in his mind, he began to play with his mobile phone out of boredom.
Finally, after Su Bai lost 8 stars in anger, it was time for the match between Su Bai and Xue Noi.
The math genius at Hua University was pretty good, and after two games with one loss and one win, Su Bai finally got a chance to play.
Seeing Su Bai come on stage, the audience in the auditorium finally became interested, and netizens in the live broadcast room also began to notify their friends and classmates that they could go online.
The number of people in the live broadcast room, which originally had only 20,000 to 30,000 people online, began to skyrocket!
This is indeed normal. Most people nowadays have little patience. It is already difficult to have 20,000 or 30,000 people in the live broadcast room. Who would be willing to watch a math competition for several hours?
Unless you have insomnia and can't sleep.
But everyone is still very curious about Su Bai's performance. After all, everyone knows that Su Bai is bad at math.
Netizens all want to see how embarrassed Su Bai will be today, and it’s quite funny to think about it.
Xueno also looked at Su Bai, who was calm across from her, with some strangeness. She was not deliberately teasing or anything when she asked Su Bai if he wanted to participate yesterday. Her understanding of Su Bai was only that he was a big star and had good athletic ability.
And seeing the reactions of Su Bai's classmates and Ren Boquan yesterday, Xue Nai went back to check Su Bai's information and immediately burst out laughing.
In her opinion, Su Bai's promise to her yesterday to go on stage might just be a boy's self-esteem at work, and he was just forcing himself.
However, Xueno did not think Su Bai's reaction was childish, but instead thought he was cute.
In this case, it really depends on your appearance.
When a handsome guy does something a bit childish, most girls will think he is very youthful, childlike and cute!
If a boy who is not so good-looking does the same thing, girls will think he is ignorant of himself, stupid, childish and funny.
It's such a double standard, and even female academic elites are not immune to it.
"Su, you ask the questions first. If I can't solve them, I lose, okay?"
Xueno had a smile on her face. Now that she knew Su Bai's true math level, she didn't want to embarrass Su Bai. She had enough confidence in the questions Su Bai asked.
Su Bai's expression also became strange.
"Are you sure?"
"certainly!"
Confidence and affirmation from a top female student!
"Okay! Then I'll give you the questions!"
Su Bai was not polite either. Since the foreign girl was so confident, of course he had to satisfy her!
Walking to the blackboard, Su Bai wrote down his question.
[Proof: Any simply connected, closed three-dimensional manifold must be homeomorphic to a three-dimensional sphere.]
Yukino: "?"
Mathematics professors from the International University Alliance: “?”
All netizens who know a little bit about math: "?"
[Isn’t this the Poincare conjecture?]
What is the Poincaré conjecture?
[What this means is that in a closed three-dimensional space, if every curve in the three-dimensional space can be contracted into a point, then this space is a three-dimensional sphere.
The three-dimensional sphere here is not a perfect circle. Special curved surfaces such as apples can also be called spheres.
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