Commuting with |==> would have been interesting a bunch of times. But I still
don't see a way to commute with fancy updates, even mask-preserving ones.

Instances exist:

- unconditionally for
  * discrete CMRAs;
  * exclR;
  * agreeR.

- Then, CmraSwappable lifts through
  * optionR
  * prodR
  * gmapR
  * `authR A` isn't shown to be swappable in general, but it is
    discrete (hence swappable) whenever A is discrete. This is still not enough
    for invG, which uses authR over iProp.
  * iResR (tho we probably need a dependently-typed TCForall to write this more
    nicely).

- As a corollary, savedAnything and gen_heap are unconditionally swappable, and
  Coq can tell.
  This is basically documentation done through Coq instances.

- Lemma `ucmra_extend_included` helps prove unital CMRAs, such as gmap, are
  swappable.

We can swap those connectives on uPred M given `CmraSwappable M`.

Some instances:
- we can do swap without resources
- but we can't seem to lift CmraSwappable over gmap; !? It seems we'd also need
  the original CMRA axiom?

A more intuitive proof that lists from a COFE

See merge request iris/iris!239

Add synopsis so make build-dep does not complain

See merge request iris/iris!238

Paolo G. Giarrusso authored 5 years ago and Ralf Jung committed 5 years ago

Nitpick, yes, but I've seen the complaint enough times today to bother.

That complaint is only useful to maintainers, and it's even in color.

```
[WARNING] Failed checks on coq-iris-builddep package definition from source at file:///Users/pgiarrusso/git/Coq/0IRIS-SWITCH/iris/build-dep:
    error 57: Synopsis and description must not be both empty
```

This proof also more easily scales to other recursive types, like
trees etc.

Notably, `big_andL_andL` and `big_andL_and` where a ⊣⊢ and ⊢ version
of the same lemma. I favored the `big_opL_op` naming scheme.

Allow multiple arguments in `iEval .. in` and `iSimpl in`.

Closes #238

See merge request iris/iris!237

Fix documentation for ofe_funR

See merge request iris/iris!236

This comment wasn't updated after
866cad62.

Avoid conversion after only reducing goal.

See merge request iris/iris!235