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2026 06 26 Meeting
affeldt-aist edited this page Jun 27, 2024
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Participants: Alessandro, Marie, Pierre, Reynald, Takafumi
-
News:
- Alessandro's presentation at TYPES (abstract)
- Comment from the audience: look at Riesz spaces
- Takafumi marveled at https://ncatlab.org/nlab/show/Riesz+space
- Marie:
- related pointer about PPL: http://www.cs.cornell.edu/kozen/Papers/ProbSemPOPL.pdf
- working on topological vector spaces but from the viewpoint of duality and distribution theory
- PR 1107
- low priority
- Comment from the audience: look at Riesz spaces
- MathComp-Analysis 1.2.0 released 3 weeks ago (https://github.com/math-comp/analysis/releases/tag/1.2.0)
- corollary to FTC1 PR #1246
- "poor man's FTC2", under review
- Takafumi:
indefinite_integral
is badly named - TODO:
definite_integral_with_a_parameter
to get rid of thein
- recent performance improvement of HB
- 15% gain for the next version (HB 1.8.0)
- 13 min to compile analysis with
make
on a laptop!
- Alessandro's presentation at TYPES (abstract)
-
take a decision about PR 1191 (topology without pointed types)
- Zachary cannot be here but it seems that preserving backward-compatibility is beyond our resources
- what about breaking backward compatibility?
- Pierre: +1 (won't probability break that much)
- Reynald: +1 (be pragmatic)
- no vote against
-
questions raised recently:
- move
signed.v
andconstructive_ereal.v
toclassical
?- Pierr: coq-mathcomp-real package?
- would contain
signed.v
,constructive_ereal.v
,reals.v
,real_interval.v
,Rstruct.v
- TODO: pierre not available now for this, maybe later in the summer, might be done by then
- is it ok for us (users of the standard Coq library) to extend the
core
Hint database?- Pierre: better ask that kind of questions to PMP
- we already
core
in MathComp - In SSRreflect,
by
,//
, etc. use core - it is not obvious how to deal with another database (using
/0
?) - Pierre: probably fine to add hints to
core
as long as by it is not slow
- floor, ceil, etc. subsumed by MathComp PR 1244
- TODO: do
Import Num.Def
rather than using a scope - new lemmas to avoid the
is a real
subgoals, e.g.,floor_ge_int
should be renamedreal_blah
in MathComp - iow, we need specialized versions
- TODO: do
- move
-
merge the Banach-Steinhaus PR?
- Marie: yes
- a few lemmas can be moved to
topology.v
- TODO: try to move
le_closed_ball
totopology.v
- use
HB.pack
to avoidmylinear
- TODO: do not forget to properly credit Theo Vignon
- Marie might have time in August for that
-
about the
semi_
prefix inmeasure.v
issue 1072- compare
semi_additive
toadditive
- rename
semi_additive
tosemi_finitely_additive
(too long...) - Pierre not worried, he wouldn't do any name change just to avoid the conflict
- TODO: try to localize the
semi_
lemmas in a module?
- compare
-
work in progress about
measure.v
: -
question about
patch
in issue 1100- Takafumi: where is the name
patch
coming from? what aboutwindowing
? - example of favoring
\_
vs.patch
: PR 1246 - Reynald thinks
patch
is good because it gives a look'n'feel closer to bigop
- Takafumi: where is the name
-
generalization of
{mfun _ >-> _}
? (as in PR 672)- TODO(alessandro): to experiment next week
- related topic: the Giry monad
- Takafumi: lemma without interface to go to analysis and the interface to go to monae?
- TODO(alessandro): for the time being, move the giry monad to the
showcase
subdir
-
easy corollary to FTC1 PR 1250
- Takafumi is
FTC1Ny useful
? maybe in some cases - TODO(takafumi): review
- Takafumi is
-
input wanted about Lp-spaces PR 1230
- we need to experiment whether it improves
probability.v
... - Alessandro+Reynald+Takafumi: resume thursday meeting (Paris 09:00, Tokyo 16:00) on Thursday from next week?
- we need to experiment whether it improves
-
new Zorn's PR 1198 (stalled by lack of time)
- TODO(rei): document and CHANGElog
-
to_set
vs.xsection
PR 1248- rename to:
xsect
? Pierre fears it augments mental charge - need to review to answer
- TODO(rei):
to_set
is to go, do more than one pass to decide the renaming
- rename to:
-
Takafumi: wants change mathcomp-analysis convexity default convention
- examples of
(1 - t)x1 + t x2
convention- https://ncatlab.org/nlab/show/convex+space
- French book on topologie algebrique
- examples of
tx1 + (1 - t)x2
convention- Folland
- Bourbaki's FVR
- https://en.wikipedia.org/wiki/Convex_function
- https://ncatlab.org/nlab/show/convex+function
- TODO: saikawa to PR
- examples of