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Commit 2021-09-17 06:22 15bf0667

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feat(measure_theory/function/l1_space): add integrability lemmas for composition with to_real (#9199)

Estimated changes

Modified src/measure_theory/function/l1_space.lean

added theorem measure_theory.has_finite_integral_to_real_of_lintegral_ne_top

added theorem measure_theory.integrable_to_real_of_lintegral_ne_top

added theorem measure_theory.mem_ℒ1_to_real_of_lintegral_ne_top

Modified src/measure_theory/measure/with_density_vector_measure.lean

added theorem measure_theory.with_densityᵥ_add'

added theorem measure_theory.with_densityᵥ_neg'

added theorem measure_theory.with_densityᵥ_smul'

added theorem measure_theory.with_densityᵥ_sub'

added theorem measure_theory.with_densityᵥ_to_real