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Rodolphe Lepigre
Iris
Commits
2708e2c5
Commit
2708e2c5
authored
Oct 28, 2017
by
Ralf Jung
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2708e2c5
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@@ 9,16 +9,16 @@ Changes in and extensions of the theory:
*
[#] Add new modality: ■ ("plainly").
*
[#] Camera morphisms have to be homomorphisms, not just monotone functions.
*
[#] A proof that
`f`
has a fixed point if
`f^k`
is contractive.
*
[#] A
dd a
proof that
`f`
has a fixed point if
`f^k`
is contractive.
*
Constructions for least and greatest fixed points over monotone predicates
(defined in the logic of Iris using impredicative quantification).
*
A proof of the inverse of
`wp_bind`
.
Changes in Coq:
*
Some things got renamed and notation changed
:
*
Rename some things and change notation
:

The unit of a camera:
`empty`
>
`unit`
,
`∅`
>
`ε`

The
proof mode type class
`IntoOp`
>
`IsOp`

A
proof mode type class
`IntoOp`
>
`IsOp`

OFEs with all elements being discrete:
`Discrete`
>
`OfeDiscrete`

OFE elements whose equality is discrete:
`Timeless`
>
`Discrete`

Timeless propositions:
`TimelessP`
>
`Timeless`
...
...
@@ 64,29 +64,27 @@ sed 's/\bPersistentP\b/Persistent/g; s/\bTimelessP\b/Timeless/g; s/\bCMRADiscret

There is a new connective
`tc_opaque`
, which can be used to make definitions
opaque for type classes, and thus opaque for most tactics of the proof
mode.

Many missing type class instances for distributing connectives have been
defined.

The tactics
`iIntros (?)`
and
`iIntros "!#"`
(i.e.
`iAlways`
) are now
implemented using type classes. That way, they are more generic, e.g.
`iIntros (?)`
also works when the universal quantifier is below a modality,
and
`iAlways`
also works for the plainness modality. A breaking change,
however, is that these tactics now no longer work when the universal
quantifier or modality is behind a type class opaque definition.
Furthermore, this can change the name of anonymous identifiers introduced
with the "%" pattern.
*
The generic
`fill`
operation of the
`ectxi_language`
construct has been
defined in terms of a left fold instead of a right fold. This gives rise to
more definitional equalities.
*
The big operators have been improved:

Define Many missing type class instances for distributing connectives.

Implement the tactics
`iIntros (?)`
and
`iIntros "!#"`
(i.e.
`iAlways`
)
using type classes. This makes them more generic, e.g.,
`iIntros (?)`
also
works when the universal quantifier is below a modality, and
`iAlways`
also
works for the plainness modality. A breaking change, however, is that these
tactics now no longer work when the universal quantifier or modality is
behind a type class opaque definition. Furthermore, this can change the
name of anonymous identifiers introduced with the "%" pattern.
*
Define the generic
`fill`
operation of the
`ectxi_language`
construct in terms
of a left fold instead of a right fold. This gives rise to more definitional
equalities.
*
Improved big operators:
+
They are no longer tied to cameras, but work on any monoid
+
The version of big operations over lists was redefined so that it enjoy
more
definitional equalities.
+
The version of big operations over lists was redefined so that it enjoy
s
more
definitional equalities.
*
Various improvements to
`solve_ndisj`
.
*
Improve handling of pure (nonstatedependent) reductions in heap_lang.
*
Use
`Hint Mode`
to prevent Coq from making arbitrary guesses in the presence
of evars, which often led to divergence. There are a few places where type
annotations are now needed.
*
The
`prelude`
folder has been moved
to its own project: std++
*
Move the
`prelude`
folder
to its own project: std++
## Iris 3.0.0 (released 20170111)
...
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