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Matthieu Baty
Fourrière
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1b6790f6
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1b6790f6
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1 year ago
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Matthieu Baty
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@@ -8,30 +8,30 @@ to the `examples` folder.
second on my computer - slow enough to be noticed, but not too slow.
## Examples
*
[
`cbv_vs_Qed`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/cbv_vs_Qed.v
)
:
in some situations,
`cbv`
without options is more efficient than
`Qed`
.
*
[
`forgotten_strategy`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/forgotten_strategy.v
)
:
Coq may not track the details of the proving strategy and this can lead
*
[
`cbv_vs_Qed`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/cbv_vs_Qed.v
)
:
in some situations,
`cbv`
without options is more efficient than
`Qed`
.
*
[
`forgotten_strategy`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/forgotten_strategy.v
)
:
Coq may not track the details of the proving strategy and this can lead
to performance issues at
`Qed`
time.
*
[
`frustration`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/frustration.v
)
:
there's no way simple way of unfolding a fixpoint only once.
*
[
`manual_check_slower_than_Qed`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/manual_check_slower_than_Qed.v
)
:
`Qed`
is more efficient at typechecking than
`Definition`
or
`Check`
.
*
[
`memoization`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/memoization.v
)
:
`vm_compute`
memoizes constants.
*
[
`names`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/names.v
)
:
non-breaking spaces can be used in identifiers for some reason.
*
[
`name_checking_halfway`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/name_checking_halfway.v
)
:
Coq's typechecking procedure seems to be split into at least three phases.
*
[
`frustration`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/frustration.v
)
:
there's no way simple way of unfolding a fixpoint only once.
*
[
`manual_check_slower_than_Qed`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/manual_check_slower_than_Qed.v
)
:
`Qed`
is more efficient at typechecking than
`Definition`
or
`Check`
.
*
[
`memoization`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/memoization.v
)
:
`vm_compute`
memoizes constants.
*
[
`names`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/names.v
)
:
non-breaking spaces can be used in identifiers for some reason.
*
[
`name_checking_halfway`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/name_checking_halfway.v
)
:
Coq's typechecking procedure seems to be split into at least three phases.
Phase 1 and phase 3 look redundant to me, and the check of the validity of the
name of the element being defined
occurs at phase 2.
*
[
`nonlinear_computation`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/nonlinear_computation.v
)
:
twice as much work can take more than twice as much time.
*
[
`now_is_not_reflexivity`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/now_is_not_reflexivity.v
)
:
easy tends to be slower than reflexivity, and
`now`
uses
`easy`
.
*
[
`simpl_vs_cbn`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/simpl_vs_cbn.v
)
:
`simpl`
doesn't like deep nestings.
*
[
`time_lies`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/time_lies.v
)
:
take
`Time`
's output with a pinch of salt.
*
[
`unfolding_and_traces`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/unfolding_and_traces.v
)
:
`unfold`
and
`intro`
don't commute.
identifier
occurs at phase 2.
*
[
`nonlinear_computation`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/nonlinear_computation.v
)
:
twice as much work can take more than twice as much time.
*
[
`now_is_not_reflexivity`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/now_is_not_reflexivity.v
)
:
`
easy
`
tends to be slower than
`
reflexivity
`
, and
`now`
uses
`easy`
.
*
[
`simpl_vs_cbn`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/simpl_vs_cbn.v
)
:
`simpl`
doesn't like deep nestings.
*
[
`time_lies`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/time_lies.v
)
:
take
`Time`
's output with a pinch of salt.
*
[
`unfolding_and_traces`
](
https://gitlab.epfl.ch/baty1/fourriere/-/blob/master/examples/unfolding_and_traces.v
)
:
`unfold`
and
`intro`
don't commute.
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