The open course of mathematical laws can have many different names, depending on the specific content and target audience. Here are some examples of possible names:

1. Exploration course of mathematical laws

2. Mathematical Law Decryption Course

3. Lecture on Mastering Mathematical Laws

4. Popular Science Course of Mathematical Laws

5. Open class of mathematical law discovery

6. Research class on mathematical laws

7. Mathematical Legal Analysis Course

Please choose the most suitable name according to your needs and target audience.