When Christine saw Luo Feng's reply, she immediately smiled in surprise.
The two of them walked to the entrance of the library and casually swept the steps twice before sitting down.
Luo Feng held a pen in one hand and a draft paper in the other. He began to explain the proof process in detail.
Christine listened attentively. This question had been bothering her for weeks. She went to ask Professor Vincent and he said that Christine could solve it with her skills. Then, he ignored it.
It was a free-range education.
Christine flipped through the book for a long time. She did not expect Luo Feng to explain everything clearly in just five minutes.
She looked at Luo Feng with admiration.
"Done." Luo Feng tore the entire draft paper to Christine.