fix: Ex. 1.2.18/1.2.24 duplicate doc labels - #574
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teorth merged 1 commit intoAug 2, 2026
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Rebased onto upstream/main; disambiguate repeated exercise labels. Co-authored-by: Cursor <cursoragent@cursor.com>
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@teorth gentle bump — this is a small Verso/docstring hygiene fix with green CI. Happy to rebase or adjust if anything looks off; otherwise ready whenever you have a moment. |
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… three Both exercises are split across three Lean declarations, and teorth#574 labelled the third of each as part (iii). But in the text each exercise has only two parts, and it is part (ii) that carries two conclusions: Exercise 1.2.18(ii): "Show that m_*(E) <= m^*(E), and that equality holds if and only if E is Lebesgue measurable." Exercise 1.2.22(ii): "Show that E x F is Lebesgue measurable, with m(E x F) = m(E) m(F)." So inner_measure.eq_iff and Lebesgue_measure.prod are the second halves of part (ii), not parts of their own. Relabel them (ii'), following the convention already used for Exercise 1.3.8(vi')/(vi'') in 7a9e513. Exercise 1.2.24 does have four parts in the text, so its (i)-(iv) labels are correct and are left alone. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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Summary
Exercise 1.2.18(ii)(inner_measure.eq_iff) to(iii).(ii)labels on Ex. 1.2.24 metric/complete instances.Exercise 1.2.12(i/ii) and1.2.22(i–iii) labels.Test plan
lake build Analysis.MeasureTheory.Section_1_2_2