Open JimmyZJX opened 5 years ago
I've wanted the semicolon tactical for a long time, but it is a huge pain to implement based on how Abella does subgoals currently (i.e., with a flat subgoal list). Definitely worth revisiting.
(Sorry for the long delay. I'm just getting back to Abella after other dealing with lots of other duties.)
Abella offers a great HOAS system for PL proofs. However, projects developed in Abella seems to have much more SLOC compared with (more or less) equivalent proof written in Coq.
Sometimes a simple proof looks stupid when most of the induction cases are not interesting, which can be solved by
case H2. search.
or simply search. If I could writeand Abella automatically filtered the trivial cases, I believe it is a good step towards productivity.
To sum up, I am expecting these basic tactical features: 1 semi-colon; 2 try; 3 "solve" or just a combined "try solve".
If the developers don't have much time, I am also curious about the difficulty and try to help.