Minutes: MathML full meeting, 20 March 2025

Attendees:

  *   David Carlisle
  *   Stella Vouthsina
  *   Paul Libbrecht
  *   Bruce Miller
  *   Neil Soiffer
  *   Deyan Ginev
  *   Neil Soiffer

<https://sandbox.cryptpad.info/code/inner.html?ver=2024.12.0-3#cp-md-0-regrets>Regrets

  *   Louis Maher

<https://sandbox.cryptpad.info/code/inner.html?ver=2024.12.0-3#cp-md-0-agenda>Agenda
<https://sandbox.cryptpad.info/code/inner.html?ver=2024.12.0-3#cp-md-0-1-announcements-updates-progress-reports>1. Announcements/Updates/Progress reports

DG: have most of infrastructure inplace for concept submission UI, demo expected in a couple of weeks.

PL: On sanitizer we need to warn people which elements are affected. We need to decide whether to close issue https://github.com/w3c/mathml-core/issues/227 mathml-core which jumps to [Sanitizer's #103](https://github.com/WICG/sanitizer-api/issues/103


DC: Message from Brian re MathML Core meeting this month, feeling we could cancel and raise any Core issues on any Thursday Meeting.

<https://sandbox.cryptpad.info/code/inner.html?ver=2024.12.0-3#cp-md-0-2-a-href-https-github-com-w3c-mathml-issues-181-181-mathml-4-extensions-for-alignment-and-possible-deprecation-of-maligngroup-and-malignmark-a->2. #181: MathML 4 extensions for alignment and possible deprecation of (maligngroup/) and (malignmark/)<https://github.com/w3c/mathml/issues/181>

Action DC: to make a PR amending the spec as outlined in the comments in the issue.



<https://sandbox.cryptpad.info/code/inner.html?ver=2024.12.0-3#cp-md-0-3-a-href-https-github-com-w3c-mathml-issues-385-385-comments-on-chapter-3-a->3. #385: comments on chapter 3<https://github.com/w3c/mathml/issues/385>

(updates/new thoughts on how to handle examples?)

I think the intended issue was
#284 Make the sample presentation of Strict Content use intent<https://github.com/w3c/mathml/issues/284> and PR 550<https://github.com/w3c/mathml/pull/530>

DC: This PR adds simple core intents to two of the blocks of examples including showing |x| distinguished as absolute value and cardinality, and is probably enough to close the issue. Other intents could be added later if good cases come up.

<https://sandbox.cryptpad.info/code/inner.html?ver=2024.12.0-3#cp-md-0-4-a-href-https-github-com-w3c-mathml-issues-120-120-remove-deprecate-simplify-the-ms-element-a->4: #120: Remove/deprecate/simplify the ms element<https://github.com/w3c/mathml/issues/120>

(both core and full -- where are we on this?)

This item was skipped (accidentally, I think)

<https://sandbox.cryptpad.info/code/inner.html?ver=2024.12.0-3#cp-md-0-5-a-href-https-github-com-w3c-mathml-issues-433-433-include-or-not-a-sample-set-of-default-conversion-from-plain-mathml-to-mathml-with-intent-a->5. #433 include (or not) a sample-set of default conversion from plain-MathML to MathML-with-intent<https://github.com/w3c/mathml/issues/433>

(discuss need for "Common" for "intent-default") -- any progress?

DC: There was some discussion between all participants on this, ending in consensus to ad :legacy which will be an explicit system-specific set of rules, and define that the behaviour if no such property is specified that this is :legacy

BM: suggested we may need a property meaning "use as much inference as possible2 so more than :common and perhaps more like mathcat, but we agreed to defer decision on that until later, after the current proposal merged."

<https://sandbox.cryptpad.info/code/inner.html?ver=2024.12.0-3#cp-md-0-6-a-href-https-github-com-w3c-mathml-issues-523-523-missing-property-to-indicate-needed-grouping-a->6 #523: Missing property to indicate needed grouping?<https://github.com/w3c/mathml/issues/523>

This item was skipped, due to Neil being unwell.

<https://sandbox.cryptpad.info/code/inner.html?ver=2024.12.0-3#cp-md-0-7-a-href-https-github-com-w3c-mathml-issues-1-1-simplification-of-the-mstyle-element-a->7 #1 Simplification of the mstyle element<https://github.com/w3c/mathml/issues/1>

DC: described the current state with one existing PR to move scriptlevel and displaystyle to be a common presentation attribute, and that left just 4 non-core attributes unique to mstyle. Proposal accepted that should make a second PR that moves the remaining attributes which would then leave mstyle being identical to mrow, as in core.

<https://sandbox.cryptpad.info/code/inner.html?ver=2024.12.0-3#cp-md-0-8-anyone-willing-to-take-on-some-spec-or-code-writing-tasks->8. Anyone willing to take on some spec or code writing tasks?




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