v2 Chapter 348： Sieve (2/2)

Wang Xuecai smiled and nodded, took the pen and paper and placed it on his knees, his eyes gradually becoming more serious.

But after a while, his brows gradually frowned.

As one of the leading figures in China's mathematics world, he can be counted as one of the farthest people in China's mathematics world. He sees problems more clearly than others.

The method used by Qin Luo is slightly different from the conventional method. He uses the sieve method!

Screen out all the impossible, and the rest is the answer!

But countless examples have proved that the four-color conjecture may not be suitable for sieve argumentation.

What does he want to do? The wrinkles between Wang Xuecai's eyebrows became deeper and deeper, and he unscrewed the cap of the pen and began to check the calculation on the notebook.

The Ye family father and son sitting in the corner on the other side didn't have the slightest worry on their faces, but smiled.

Like Wang Xuecai, they are also leaders in the field of mathematics. Among them, Ye Liang is a professor of mathematics at Johns Hopkins University, which shows his extraordinary ability.

Therefore, Wang Xuecai could understand Qin Luo's argument, and he could also understand it.

Seeing Qin Luo's argumentation process that filled the whiteboard, Ye Liang's mouth twitched.

”Sieving!”

What does he want to do?

Not only is he thinking about this issue, but Ye Kang is also thinking about it.

The sieve method is a common method of argumentation in the process of mathematical argumentation.

But this kind of mathematical argumentation method is only suitable for some specific conjectures.

However, the four-color conjecture is not included here.

The reason is also very simple. There are too many possibilities for the four-color conjecture.