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=== Strange Notation
Strange notation. Afaik, <f,g> denotes an inner product of f and g (or a bilinear form in general). Here no inner product is involved - <v,A> simply means v(A) - evaluation of a continuous linear form v in A ∈ B. Same for <v,f(t)>. — Preceding unsigned comment added by 78.94.114.62 (talk) 18:40, 19 June 2013 (UTC)
- This is common usage. Jmath666 (talk) 01:25, 29 December 2013 (UTC)
=== Existence of Element
According to the definition it is integrable if there exists an element such that etc. Then later the article says it exists if they are all integrable already - mistake? --138.246.2.74 (talk) 06:24, 4 November 2014 (UTC)