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8b49eacf
Commit
8b49eacf
authored
Jan 16, 2018
by
Robbert Krebbers
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ProofMode.md
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8b49eacf
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@@ 150,11 +150,22 @@ Induction
variables
`x1 ... xn`
, the hypotheses given by the selection pattern
`selpat`
,
and the spatial context.
Rewriting

Rewriting / simplification


`iRewrite pm_trm`
/
`iRewrite pm_trm in "H"`
: rewrite using an internal
equality in the proof mode goal / hypothesis
`H`
.

`iEval (tac)`
/
`iEval (tac) in H`
: performs a tactic
`tac`
on the proof mode
goal / hypothesis
`H`
. The tactic
`tac`
should be a reduction or rewriting
tactic like
`simpl`
,
`cbv`
,
`lazy`
,
`rewrite`
or
`setoid_rewrite`
. The
`iEval`
tactic is implemented by running
`tac`
on
`?evar ⊢ P`
/
`P ⊢ ?evar`
where
`P`
is the proof goal / hypothesis
`H`
. After running
`tac`
,
`?evar`
is unified
with the resulting
`P`
, which in turn becomes the new proof mode goal /
hypothesis
`H`
.
Note that parentheses around
`tac`
are needed.

`iSimpl`
/
`iSimpl in H`
: performs
`simpl`
on the proof mode goal /
hypothesis
`H`
. This is a shorthand for
`iEval (simpl)`
.

`iRewrite pm_trm`
: rewrite an equality in the conclusion.

`iRewrite pm_trm in "H"`
: rewrite an equality in the hypothesis
`H`
.
Iris

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