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Mathbox for Thierry Arnoux |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > df-itgm | Structured version Visualization version GIF version |
Description: Define the Bochner
integral as the extension by continuity of the
Bochnel integral for simple functions.
Bogachev first defines 'fundamental in the mean' sequences, in definition 2.3.1 of [Bogachev] p. 116, and notes that those are actually Cauchy sequences for the pseudometric (π€sitmπ). He then defines the Bochner integral in chapter 2.4.4 in [Bogachev] p. 118. The definition of the Lebesgue integral, df-itg 25003. (Contributed by Thierry Arnoux, 13-Feb-2018.) |
Ref | Expression |
---|---|
df-itgm | β’ itgm = (π€ β V, π β βͺ ran measures β¦ (((metUnifβ(π€sitmπ))CnExt(UnifStβπ€))β(π€sitgπ))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | citgm 32967 | . 2 class itgm | |
2 | vw | . . 3 setvar π€ | |
3 | vm | . . 3 setvar π | |
4 | cvv 3448 | . . 3 class V | |
5 | cmeas 32834 | . . . . 5 class measures | |
6 | 5 | crn 5639 | . . . 4 class ran measures |
7 | 6 | cuni 4870 | . . 3 class βͺ ran measures |
8 | 2 | cv 1541 | . . . . 5 class π€ |
9 | 3 | cv 1541 | . . . . 5 class π |
10 | csitg 32969 | . . . . 5 class sitg | |
11 | 8, 9, 10 | co 7362 | . . . 4 class (π€sitgπ) |
12 | csitm 32968 | . . . . . . 7 class sitm | |
13 | 8, 9, 12 | co 7362 | . . . . . 6 class (π€sitmπ) |
14 | cmetu 20803 | . . . . . 6 class metUnif | |
15 | 13, 14 | cfv 6501 | . . . . 5 class (metUnifβ(π€sitmπ)) |
16 | cuss 23621 | . . . . . 6 class UnifSt | |
17 | 8, 16 | cfv 6501 | . . . . 5 class (UnifStβπ€) |
18 | ccnext 23426 | . . . . 5 class CnExt | |
19 | 15, 17, 18 | co 7362 | . . . 4 class ((metUnifβ(π€sitmπ))CnExt(UnifStβπ€)) |
20 | 11, 19 | cfv 6501 | . . 3 class (((metUnifβ(π€sitmπ))CnExt(UnifStβπ€))β(π€sitgπ)) |
21 | 2, 3, 4, 7, 20 | cmpo 7364 | . 2 class (π€ β V, π β βͺ ran measures β¦ (((metUnifβ(π€sitmπ))CnExt(UnifStβπ€))β(π€sitgπ))) |
22 | 1, 21 | wceq 1542 | 1 wff itgm = (π€ β V, π β βͺ ran measures β¦ (((metUnifβ(π€sitmπ))CnExt(UnifStβπ€))β(π€sitgπ))) |
Colors of variables: wff setvar class |
This definition is referenced by: (None) |
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