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refactor(measure_theory/measure/lebesgue): use ‖a‖₊ • instead of ennreal.of_real (|a|) * #19018

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@eric-wieser eric-wieser commented May 15, 2023

The new spelling is shorter and consists of fewer terms, so needs fewer lemmas to reason about.


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Marked WIP for now as I need to wait for the missing ennreal lemma to make it to a cache.

@eric-wieser eric-wieser added WIP Work in progress awaiting-CI The author would like to see what CI has to say before doing more work. labels May 15, 2023
@eric-wieser eric-wieser requested a review from a team as a code owner May 15, 2023 12:28
@github-actions github-actions bot added the modifies-synchronized-file This PR touches a files that has already been ported to mathlib4, and may need a synchronization PR. label May 15, 2023
@semorrison semorrison added the too-late This PR was ready too late for inclusion in mathlib3 label Jul 16, 2023
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awaiting-CI The author would like to see what CI has to say before doing more work. modifies-synchronized-file This PR touches a files that has already been ported to mathlib4, and may need a synchronization PR. too-late This PR was ready too late for inclusion in mathlib3 WIP Work in progress
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