Description: Definitional property of the S.2 integral: for any function F there is a countable sequence g of simple functions less than F whose integrals converge to the integral of F . (This theorem is for the most part unnecessary in lieu of itg2i1fseq , but unlike that theorem this one doesn't require F to be measurable.) (Contributed by Mario Carneiro, 14-Aug-2014)
Ref | Expression | ||
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Assertion | itg2seq | |