Duan Rui bowed to the audience very politely, and then walked to the front of the lecture stage, adjusted the angle of the microphone, and then a voice like a newscaster suddenly came out, listening to it was comfortable.

Fang Nian was a little shocked, his eyes widened like a copper bell, he couldn't believe what he saw, he patted the fat man beside him.

"Fatty, buddy may be dazzled, can you be sure that she is the fierce woman just now?"

The fat man was also frightened, rubbed his somewhat dry old eyes, and teased.

"It's her, hey...... Don't, this girl's voice is really amazing, if you are doing that thing, it will definitely be. ”

Duan Rui's appearance quickly heated up the field, and the atmosphere became unprecedentedly high.

"Thank you for being able to participate in the Duan Feng Hunting Forum founded by my father in your busy schedule, so there is not much gossip, and the topic I want to share with you today is - the use of logical thinking."

Hearing Duan Rui's words, Fang Nian was slightly stunned, the use of logical thinking was the topic that Fang Nian was most concerned about recently, but he had just obtained the true transmission of the system. Now when I heard this girl talk about this, I naturally became interested.

"Logical thinking refers to the way or form of connecting and organizing the contents of thought......"

The extra-long explanation of the basic logical thinking reflects Duan Rui's endowment in speech. In about half an hour or so, Duan Rui explained the general outline of logical thinking to everyone very clearly, and in terms of language communication ability, Fang Nian felt that Duan Rui could beat everyone before.

However, in Fang Nian's opinion, there was nothing particularly valuable about what she said, if it was for a rookie hunter, this would definitely be a suitable teaching material. But for the old hunters, this is just the basics, not much value.

"Okay, I think you now have a new understanding of logical thinking, so let's analyze how logical thinking can be applied to our daily hunting according to some examples."

Then, Duan Rui tapped a few times on the notebook in front of him, and a spherical thing appeared on the three-dimensional projection, and if you look closely, you can find that this is a regular dodecahedron, that is, each face is a regular pentagon.

"This is a combination lock that my father once invented, and the method of unlocking it requires following the edge of the dodecahedron to find a way to get through the 20 corners of the dodecahedron and then return to the original point without repeating the path."

"Well, from now on, you can think according to the thinking I explained before, and see if you can ...... it in 3 minutes."

However, before Duan Rui's words could be finished, a lazy voice suddenly came from behind him.

"Start with a regular pentagonal shape of the dodecahedron, go through the 5 points, then go to the middle 10 points, and then go to the remaining 5 points, and these five points happen to be on the same pentagon."

Silence, incomparably silent, in the great hall that had been bustling just now, now it was as silent as a midnight graveyard.

It was none other than Fang Nian who was talking. This guy actually gave the answer when Duan Rui hadn't finished his question.

In fact, after Duan Rui came up with this question, Fang Nian's brain began to spin rapidly, and soon with the blessing of powerful logical thinking, Fang Nian got the answer.

At the same time, Fang Nian also thought of a memory of his time on Earth. I remember that it was a geometry class in the third year of high school, and the teacher took out this dodecahedron in class and asked the same question as Duan Rui. At that time, more than 40 people in the class studied the whole one.

Later, Fang Nian also checked the relevant information. The source of this question is actually from a Sir Allland named William Hamilton. This person is the talent in our eyes, and the children of other people's families in the eyes of parents.

He was literate at the age of 3, learned 8 languages as a child, read through the "Geometry Original" at the age of 12, corrected the mathematical loopholes of the great mathematician at the age of 16, and reached the peak at the age of 22, and was promoted to university professor by the academy. The "quaternion" that once caused a sensation in the world was invented by him.

As for the invention of this dodecahedron, it is a game invented by Hamilton called "Travel Around the World", and the brain hole is really amazing.

The silence of the scene was quickly broken by a rustle, and many people began to verify the answer given by Fang Nian on the notebook in their hands.

"I'll go, really? There's no problem.,You can really pass 20 corners.,And finally back to the original point.,Amazing.。 ”

"yes, who is this man? It seems to be sitting in the back, it shouldn't be a child of a big family, right? ”

"Hmm...... No, I know this person, isn't he the son-in-law of the Xia family who swept the hunting grounds of the Jin and Xu families before? ”

"Oh, I remembered, too, but is this person really willing? How could he solve it so quickly, you must know that Duan Rui hadn't finished the question just now, and his answer came out. ”

"It doesn't matter if he's true or not, anyway, we can learn from this password lock, this unlocking method is really not something that ordinary people can unlock, this forum is really not in vain, and it has gained a lot."

…………

The discussion among the people below was enthusiastic, but Duan Rui's face on the stage had become very ugly. She also recognized that the person who had just solved her problem was the guy who had caused trouble before. It's obvious that this guy is taking revenge on himself, so the solution is not a slap in the face, so what?

"Wang An, let's see if you have such good luck next time."

When everyone digested the world game in front of them, Duan Rui smiled slightly, removed the first question, and replaced it with a three-dimensional scene, just like a three-dimensional image.

"Through the combination lock, you can find that the speculation of logical thinking is traceable. That is, through the scrutiny of logical thinking, it is possible to unravel some kind of code or mechanical mechanism. ”

"Then let's test everyone's reasoning skills. The scene in front of me is a 1:1 reconstruction of a murder scene in an E-class hunting ground. You can follow the clues left at the scene, use logical thinking to analyze it, and find out the truth of the matter. ”

Soon, the picture on the three-dimensional stereoscopic projection began to move.

In the picture, the bright moon hangs in the sky and is particularly bright, and from time to time there are insects and birds flying through the sky, from the analysis of the air, this should be a summer night, and it is a sunny day, and the moonlight is not blocked.

At this time, two people were sitting on the river dam in the moonlight, a man and a woman snuggling up to each other, which should be a couple. At this time, the man was affectionate, waving his arms from time to time to help the woman repel mosquitoes, and the woman leaned on the man's shoulder to enjoy a moment of comfort.

However, the harmony in the picture is soon shattered, and the man suddenly pushes the woman away, then points at her and begins to yell. The woman stood in place and cried and shouted to the man, as if she was venting her grievances in her heart.

The quarrel scene became more and more intense, and the woman's emotions gradually got out of control, picking up the gravel around her and throwing it at the man desperately.

But at this moment, a scene that shocked everyone happened. I saw that the man couldn't bear it anymore, so he actually picked up a huge stone next to him and smashed it directly on the woman's head.

Immediately, blood splattered, and the woman fell to the ground in response to everyone's shocked gaze.