`RelDecision` instance for `flip`, and make `flip` tc opaque to avoid loops due to eager unification.

Otherwise type class search ocasionally unfolds them and finds
wrong instances. Based on an issue reported by @jihgfee.

Fix typo in doc

See merge request !68

Binders library that's used in many Iris developments.

See merge request !67

This closes issue #25.

Improve performance of `set_solver`

Closes #29 and iris#232

See merge request !66

gmultiset lemmas

See merge request !65

Add `map_delete_zip_with`

See merge request !64

More efficient list encoding for Countable

See merge request !62

Jakob Botsch Nielsen authored 6 years ago and Robbert Krebbers committed 6 years ago

This changes the encoding used for finite lists of values of countable
types to be linear instead of exponential. The encoding works by
duplicating bits of each element so that 0 -> 00 and 1 -> 11, and then
separating each element with 10. The top 1-bits are not kept since we
know a 10 is starting a new element which ends with a 1.

Fix #28

Hopefully this fixes iris/iris#232

move the (very brief) contribution guide to the README

See merge request iris/stdpp!60

Make `gset` a `Definition` instead of `Notation`.

See merge request !59

This fixes an issue in orc11.

Overhaul of the `Infinite`/`Fresh` infrastructure

See merge request !58