[math-fun] Mersenne conjecture solved?

There is a claim that there are infinitely many Mersenne primes: Fengsui Liu, <a href=" https://research.journalspress.com/index.php/science/article/view/567">There are Infinitely Many Mersenne Primes</a>, London Journal of Research in Science: Natural and Formal (2020) Vol. 20, Issue 3, Compilation 1.0. The link has been added to sequence A000668, but if the proof is invalid I should add a comment saying so. Best regards Neil Neil J. A. Sloane, President, OEIS Foundation. 11 South Adelaide Avenue, Highland Park, NJ 08904, USA. Also Visiting Scientist, Math. Dept., Rutgers University, Piscataway, NJ. Phone: 732 828 6098; home page: http://NeilSloane.com Email: njasloane@gmail.com