[lakesare]

Thanks for the link. I've been reading Leslie Lamport's TLA works this year coincidentally, but never stumbled upon this one. His structured proofs would turn into a paperproof-style tree if he turned his 3.1.1.1. numbers into a tree, it's pretty close to paperproof conceptually.

I don't know of any software that allows for manual writing of such proofs yet, I'm drawing proof trees on paper at the moment. I would like paperproof to allow for this eventually. We want to enable ml-generation of tactics with ReProver, which will require the interface for the manual creation of goals and hypotheses. Hopefully after that it will be more clear what fully-manually-written proof interface could look like.