I'm developing a library for googology in Coq. The project is working well so far. However, I have a question: Can I get the successor of an universe in Coq?
I can get the successor of an universe by lsuc in Agda. It seems that Coq has the only operator max(_,_). By the Print command, I can see something like Type@{(Top.9)+1} that includes _+1, but I can't use this notation.