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Simon Spies
Iris
Commits
24de06c7
Commit
24de06c7
authored
Jul 19, 2016
by
Robbert Krebbers
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heap_lang/tactics.v
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24de06c7
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@@ 2,6 +2,10 @@ From iris.heap_lang Require Export lang.
From
iris
.
prelude
Require
Import
fin_maps
.
Import
heap_lang
.
(** We define an alternative representation of expressions in which the
embedding of values and closed expressions is explicit. By reification of
expressions into this type we can implementation substitution, closedness
checking, atomic checking, and conversion into values, by computation. *)
Module
W
.
Inductive
expr
:
=

Val
(
v
:
val
)
...
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@@ 110,6 +114,10 @@ Proof.
induction
e
;
naive_solver
eauto
using
is_closed_of_val
,
is_closed_weaken_nil
.
Qed
.
(* We define [to_val (ClosedExpr _)] to be [None] since [ClosedExpr]
constructors are only generated for closed expressions of which we know nothing
about apart from being closed. Notice that the reverse implication of
[to_val_Some] thus does not hold. *)
Fixpoint
to_val
(
e
:
expr
)
:
option
val
:
=
match
e
with

Val
v
=>
Some
v
...
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