Add a `NoBackTrack` type class.
NoBackTrack P
requires P
but will never backtrack on it
once a result for P
has been found.
See also https://gitlab.mpi-sws.org/FP/iris-coq/merge_requests/112
NoBackTrack P
requires P
but will never backtrack on it
once a result for P
has been found.
See also https://gitlab.mpi-sws.org/FP/iris-coq/merge_requests/112