Zulip Chat Archive

Stream: mathlib4

Topic: Notation for AbsolutelyContinuous


Rémy Degenne (May 09 2024 at 08:58):

Absolute continuity of measures was previously using the notation μ ≪ ν in the infoview. Now it is written μ.AbsolutelyContinuous ν instead. I guess that this is due to the recent change adding dot notation for everything. Is there a way to make the infoview use μ ≪ ν again?
The notation is defined like this:

@[inherit_doc MeasureTheory.Measure.AbsolutelyContinuous]
scoped[MeasureTheory] infixl:50 " ≪ " => MeasureTheory.Measure.AbsolutelyContinuous

Jireh Loreaux (May 09 2024 at 13:26):

I think @Kyle Miller already had a fix which might make it into rc2 this month.

Kyle Miller (May 09 2024 at 15:52):

Yeah, a fix will be in the next 4.8.0 release: https://github.com/leanprover/lean4/commit/10766297bd52e7ebc825d8c485fd507daf5ada78

Sorry for breaking these notations in rc1!


Last updated: May 02 2025 at 03:31 UTC