GitLab

- Added my version of increment.v for practicing working with logically atomic triples
- Added implementation of coin-flip spec from Turon et al. (POPL'13) with an assumed spec for prophecy variables

make atomic_acc typeclasses-opaque

Use telescopes for atomic accessors, updates and triples; improve mask handling; add notation for all of them

With a pretty proof by Robbert

See the comments in the code for why that makes sense

This restricts CAS to only be able to compare literals with literals, NONEV with NONEV and NONEV with SOMEV for a literal.

* move PROP-envs definitions to environments.v so that we can control them without pulling in coq_tactics
* use reduction-controlled `pm_default` for proofmode accessors