Skip to content
GitLab
Projects
Groups
Snippets
Help
Loading...
Help
What's new
7
Help
Support
Community forum
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in / Register
Toggle navigation
Open sidebar
Iris
Iris
Commits
1b925f41
Commit
1b925f41
authored
Nov 07, 2019
by
Robbert Krebbers
Browse files
Options
Browse Files
Download
Email Patches
Plain Diff
Improve documentation of `iIntoEmpValid`.
parent
0412acb4
Changes
1
Hide whitespace changes
Inline
Side-by-side
Showing
1 changed file
with
11 additions
and
9 deletions
+11
-9
theories/proofmode/ltac_tactics.v
theories/proofmode/ltac_tactics.v
+11
-9
No files found.
theories/proofmode/ltac_tactics.v
View file @
1b925f41
...
...
@@ -720,23 +720,25 @@ Notation "( H $! x1 .. xn 'with' pat )" :=
(
ITrm
H
(
hcons
x1
..
(
hcons
xn
hnil
)
..)
pat
)
(
at
level
0
,
x1
,
xn
at
level
9
).
Notation
"( H 'with' pat )"
:
=
(
ITrm
H
hnil
pat
)
(
at
level
0
).
(* The tactic [iIntoEmpValid] tactic solves a goal [bi_emp_valid Q]. The
(* The tactic [iIntoEmpValid] tactic solves a goal [bi_emp_valid
?
Q]. The
argument [t] must be a Coq term whose type is of the following shape:
[∀ (x_1 : A_1) .. (x_n : A_n), φ]
and so that
we have an instance
`
AsValid φ
Q`
.
for which
we have an instance
[
As
Emp
Valid φ
?Q]
.
Examples of such [φ]s are
- [bi_emp_valid P], in which case [Q]
should be
[P]
- [P1 ⊢ P2], in which case [Q]
should be
[P1 -∗ P2]
- [P1 ⊣⊢ P2], in which case [Q]
should be
[P1 ↔ P2]
- [bi_emp_valid P], in which case [Q]
is unified with
[P]
.
- [P1 ⊢ P2], in which case [Q]
is unified with
[P1 -∗ P2]
.
- [P1 ⊣⊢ P2], in which case [Q]
is unified with
[P1 ↔ P2]
.
The tactic instantiates each dependent argument [x_i] with an evar and generates
a goal [R] for each non-dependent argument [x_i : R]. For example, if the
original goal was [Q] and [t] has type [∀ x, P x → Q], then it generates an evar
[?x] for [x] and a subgoal [P ?x]. *)
The tactic instantiates each dependent argument [x_i : A_i] with an evar and
generates a goal [A_i] for each non-dependent argument [x_i : A_i].
For example, if the initial goal is [bi_emp_valid ?Q] and [t] has type
[∀ x, P x → R x], then it generates an evar [?x] for [x], a subgoal [P ?x],
and unifies [?Q] with [R x]. *)
Local
Ltac
iIntoEmpValid
t
:
=
let
go_specialize
t
tT
:
=
lazymatch
tT
with
(* We do not use hnf of tT, because, if
...
...
Write
Preview
Markdown
is supported
0%
Try again
or
attach a new file
.
Attach a file
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment