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2022 02 24 Meeting
affeldt-aist edited this page Feb 25, 2022
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Participants: Cyril, Laurent, Marie, Pierre, Reynald, Yves, Zachary
-
issue 498 (wish list?)
- a wish could be a ticket.
- TODO: create a wish label
-
issue 456 (conflict fct_ringType/Morphism)
- 8.15 has a new feature to import without the notations
- new PR: Tvs and duality theory
- topological vector spaces
- interest to define the spectrum of objects
- interaction of a vector space with its dual (in the sense of vector spaces)
- interesting when the dimension is not finite
- certainly nothing yet in mathcomp whose setting is constructive
- distribution theory
- link with probability theory? maybe take a look at PR 516
- some theory about convexity to be merged as part of PR 371
- about the Zulip stream #linear_zmodType
- see the space of linear morphisms declared by Zachary at the end of
topology.v
- see the space of linear morphisms declared by Zachary at the end of
- topological vector spaces
- points to discuss in #511
- should notations such as
%:pos
and%:nng
be inring_scope
?- this would allow for similar notations in
ereal_scope
- generalization for
neg
andnnp
- main machinery in
signed.v - TODO: Reynald to review
- TODO: ask Cyril about
fix two problems in the application of le_num
- this would allow for similar notations in
- discuss construction of orderType on signs (c.f., commented Section Order)
- several ways to build an
orderType
- not really an issue to be addressed now
- several ways to build an
- there is also PR 375 about extended reals to be merged after this one
- not urgent
- should notations such as
- separate boolp and classical_sets (as discussed in https://coq.zulipchat.com/#narrow/stream/237666-math-comp-analysis/topic/boolp)
- Pierre also has an interest, happy with the implementation as such
- Reynald: this could make a good replacement for the aging Ensemble
- TODO: document boolp
- TODO: separate package, a la mathcomp, let's call it mathcomp-classical
- progress report about Arzela?
- merged PR 527
- we are almost done
- forward direction is PR 545
- textbook proofs use compact covers but they do not play nice with filters
- important pieces of machinery:
-
near_compact_covering
is an important lemma to turn a global property into two local properties- Cyril: no finiteness condition?
-
sets_of_filters
: we have no epsilons but entourages in uniform spaces, could use downwards set as filters
-
- Zachary a bit annoyed with the near notation
- TODO: Zachary to post two issues about technicalities
- TODO: review the PR
- Cyril: about equicontinuous, don't take a set for a collection of objects but a family, like trivIset, bigcup, filter_from, etc., because this composes better (coercion from a family of morphisms to a family of arrows)
- TODO: this is an idiom worth documenting in
contributing.md
- small PR last night
- TODO: review PR 547
- plan to merge PR 543 (simplify
set_interval.v
)- which contains PR 371 (Lebesgue measure and integral)
- to be followed later by PR 541 (displays for measurables)
- which closes draft PR 492 (functions and cardinality) and closes PR 435 (rat is countable)?
- but does not close draft PR 83 (WIP: Rewriting countability and finiteness)
- which contains a missing bit with the compatibility with finiteness
- TODO: dispatch the lemmas to the right places (in particular, in
fsbigop.v
), renamecsum
toesum
, put acloses
to merge PR 371 in the branch "simplifyset_interval.v
" - TODO(later): replace
fset
byfinite_set
in csum/esum - TODO: release of 0.4 afterwards
- Laurent: couldn't functions.v be a separate PR?
- Cyril: we want Lebesgue anyway, merge without review
- TODO: after the merge, tag the files
functions.v
,cardinality.v
,csum.v
andfsbigop.v
for a second round review
- additions to
ereal.v
: - Do you have generic lemmas about complex that could make their way to real-closed?
- from PR 1921 (holomorphy)
- TODO: PR to real-closed
- complex exponential?
- rather define it as a power series
- the set up for the series will be useful
- theory developed for compact convergence to be useful
- ask Zachary
- stalled, input appreciated if any:
- Marie: drop mathcomp 1.12?
- let's drop mathcomp 1.12 and support 8.14 and later and mathcomp 1.13 and later