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aristotle/Aristotle/Basic.lean
Stefan Kebekus 6ec755312b
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import Mathlib
theorem intervalIntegrable_iff_intervalIntegrable_smul
{E : Type*} [NormedAddCommGroup E]
{a b : } {μ : MeasureTheory.Measure }
{R : Type*} [NormedAddCommGroup R] [SMulZeroClass R E] [IsBoundedSMul R E]
{f : E} {r : R} (hr : r 0) :
IntervalIntegrable f μ a b IntervalIntegrable (r f) μ a b := by
sorry
theorem IntervalIntegrable.abs'
{a b : } {μ : MeasureTheory.Measure } {f : } (hf : Measurable f) :
IntervalIntegrable f μ a b IntervalIntegrable (fun x => |f x|) μ a b := by
sorry