Oh hell yes. My proof-compression and -checking programs finally made it successfully through all 13074 declarations of the version of the TALT suite I've been using for testing. Previous to this last bugfix, it was only getting ~4000. SetCPUTimer tells me compression took about 2 hours, and the final typecheck took 30 seconds. Twelf takes about half an hour to check all the same stuff, but this is totally not a fair comparison, (to the 30s figure) because my tool doesn't do anything to correspond to mode-, termination-, or coverage-checking. Or parsing, for that matter! Nonetheless, it's a very promising number.