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0cc2c6e0
Commit
0cc2c6e0
authored
Dec 12, 2016
by
Robbert Krebbers
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Add lemma gen_heap_dealloc.
parent
edcdbc1d
Pipeline
#3320
passed with stage
in 11 minutes and 6 seconds
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theories/program_logic/gen_heap.v
theories/program_logic/gen_heap.v
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theories/program_logic/gen_heap.v
View file @
0cc2c6e0
...
...
@@ -68,6 +68,9 @@ Section gen_heap.
Lemma
to_gen_heap_insert
l
v
σ
:
to_gen_heap
(<[
l
:
=
v
]>
σ
)
=
<[
l
:
=(
1
%
Qp
,
to_agree
(
v
:
leibnizC
V
))]>
(
to_gen_heap
σ
).
Proof
.
by
rewrite
/
to_gen_heap
fmap_insert
.
Qed
.
Lemma
to_gen_heap_delete
l
σ
:
to_gen_heap
(
delete
l
σ
)
=
delete
l
(
to_gen_heap
σ
).
Proof
.
by
rewrite
/
to_gen_heap
fmap_delete
.
Qed
.
(** General properties of mapsto *)
Global
Instance
mapsto_timeless
l
q
v
:
TimelessP
(
l
↦
{
q
}
v
).
...
...
@@ -121,6 +124,14 @@ Section gen_heap.
iModIntro
.
rewrite
to_gen_heap_insert
.
iFrame
.
Qed
.
Lemma
gen_heap_dealloc
σ
l
v
:
gen_heap_ctx
σ
-
∗
l
↦
v
==
∗
gen_heap_ctx
(
delete
l
σ
).
Proof
.
iIntros
"Hσ Hl"
.
rewrite
/
gen_heap_ctx
mapsto_eq
/
mapsto_def
.
rewrite
to_gen_heap_delete
.
iApply
(
own_update_2
with
"Hσ Hl"
).
eapply
auth_update_dealloc
,
(
delete_singleton_local_update
_
_
_
).
Qed
.
Lemma
gen_heap_valid
σ
l
q
v
:
gen_heap_ctx
σ
-
∗
l
↦
{
q
}
v
-
∗
⌜σ
!!
l
=
Some
v
⌝
.
Proof
.
iIntros
"Hσ Hl"
.
rewrite
/
gen_heap_ctx
mapsto_eq
/
mapsto_def
.
...
...
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