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2022 11 22 Meeting

affeldt-aist edited this page Nov 22, 2022 · 1 revision

Participants: Cyril, Pierre, Reynald, Yves, Zachary

  • PR triaging:

    • second countable, clopen PR 797
      • local_base: the neighborhood is equal to the filter_from of B
      • topological_base: there is an alternative definition
      • maybe this could be merged as it is with the current definition
        • even keep the definition and add the other definitions with lemmas for the equivalence
      • what about the idiom cid (iffLR (exists2P _ _) (h n))?
        • put a name for all these idioms is not reasonable
        • TODO: maybe put this somewhere in the wiki
        • TODO: try to use sigW (one layer of abstraction on top of cid) instead of cid (the axiom)
    • Product embedding PR 768
      • same for supremum, with a local notation ("print only" notations)
        • just notations for this PR, no displays
        • wait for a tool might be the best solution but for topology we maybe cannot wait
        • putting displays would be needed for topologies only, no need to add displays for normed spaces and higher in the hiearchy
    • integral of constant and generalization of le_integral_abse PR 781
      • TODO: expose both lemmas
        • rename the second, more general lemma with comp_abse
        • put Cyril as a reviewer
  • Easy PRs:

    • naming, following discussion of an issue, PR 767
      • TODO: avoid (d : _) by replacing Variables with Context
    • add a lemma to classical_sets.v PR 791
      • TODO: merge
    • fix generated sigma-algebras of extended real numbers PR 793
    • fix deprecated declarations PR 798
      • we need to make the proxies...
      • this should be fixed at the the Coq level
        • send to the Coq call?
  • RFC:

    • in a previous meeting [2022-02-24] we concluded that the complex exponential is better defined as a power series PR 770 does so and prove exp x%:C = (expR x)%:C it requires undesirable type constraints (: complex_ringType _) how to tackle expD?
      • TODO: Cyril to look at it
  • TODO: release of MathComp-Analysis 0.6

    • milestone
    • add PR 799 to the milestone
      • Cyril was about to introduce something similar to product_embed to MathComp as a forthcoming PR
      • TODO: Zachary to rename (projection to proj) and move code in mathcomp_extra.v
        • may need to re-alias in topology.v
  • rebase of the HB branch in progress

    • before this rebase, we were at product_topologicalType
  • project of re-licensing to MIT following MathComp? (see https://github.com/math-comp/math-comp/wiki/Minutes-October-5-2022)

  • short progress report about measure theory