| Step |
Hyp |
Ref |
Expression |
| 1 |
|
itgadd.1 |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → 𝐵 ∈ 𝑉 ) |
| 2 |
|
itgadd.2 |
⊢ ( 𝜑 → ( 𝑥 ∈ 𝐴 ↦ 𝐵 ) ∈ 𝐿1 ) |
| 3 |
|
itgadd.3 |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → 𝐶 ∈ 𝑉 ) |
| 4 |
|
itgadd.4 |
⊢ ( 𝜑 → ( 𝑥 ∈ 𝐴 ↦ 𝐶 ) ∈ 𝐿1 ) |
| 5 |
|
eqid |
⊢ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℜ ‘ 𝐵 ) ) , ( ℜ ‘ 𝐵 ) , 0 ) ) ) = ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℜ ‘ 𝐵 ) ) , ( ℜ ‘ 𝐵 ) , 0 ) ) ) |
| 6 |
|
eqid |
⊢ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℜ ‘ 𝐵 ) ) , - ( ℜ ‘ 𝐵 ) , 0 ) ) ) = ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℜ ‘ 𝐵 ) ) , - ( ℜ ‘ 𝐵 ) , 0 ) ) ) |
| 7 |
|
eqid |
⊢ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℑ ‘ 𝐵 ) ) , ( ℑ ‘ 𝐵 ) , 0 ) ) ) = ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℑ ‘ 𝐵 ) ) , ( ℑ ‘ 𝐵 ) , 0 ) ) ) |
| 8 |
|
eqid |
⊢ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℑ ‘ 𝐵 ) ) , - ( ℑ ‘ 𝐵 ) , 0 ) ) ) = ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℑ ‘ 𝐵 ) ) , - ( ℑ ‘ 𝐵 ) , 0 ) ) ) |
| 9 |
5 6 7 8 1
|
iblcnlem |
⊢ ( 𝜑 → ( ( 𝑥 ∈ 𝐴 ↦ 𝐵 ) ∈ 𝐿1 ↔ ( ( 𝑥 ∈ 𝐴 ↦ 𝐵 ) ∈ MblFn ∧ ( ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℜ ‘ 𝐵 ) ) , ( ℜ ‘ 𝐵 ) , 0 ) ) ) ∈ ℝ ∧ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℜ ‘ 𝐵 ) ) , - ( ℜ ‘ 𝐵 ) , 0 ) ) ) ∈ ℝ ) ∧ ( ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℑ ‘ 𝐵 ) ) , ( ℑ ‘ 𝐵 ) , 0 ) ) ) ∈ ℝ ∧ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℑ ‘ 𝐵 ) ) , - ( ℑ ‘ 𝐵 ) , 0 ) ) ) ∈ ℝ ) ) ) ) |
| 10 |
2 9
|
mpbid |
⊢ ( 𝜑 → ( ( 𝑥 ∈ 𝐴 ↦ 𝐵 ) ∈ MblFn ∧ ( ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℜ ‘ 𝐵 ) ) , ( ℜ ‘ 𝐵 ) , 0 ) ) ) ∈ ℝ ∧ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℜ ‘ 𝐵 ) ) , - ( ℜ ‘ 𝐵 ) , 0 ) ) ) ∈ ℝ ) ∧ ( ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℑ ‘ 𝐵 ) ) , ( ℑ ‘ 𝐵 ) , 0 ) ) ) ∈ ℝ ∧ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℑ ‘ 𝐵 ) ) , - ( ℑ ‘ 𝐵 ) , 0 ) ) ) ∈ ℝ ) ) ) |
| 11 |
10
|
simp1d |
⊢ ( 𝜑 → ( 𝑥 ∈ 𝐴 ↦ 𝐵 ) ∈ MblFn ) |
| 12 |
11 1
|
mbfdm2 |
⊢ ( 𝜑 → 𝐴 ∈ dom vol ) |
| 13 |
|
eqidd |
⊢ ( 𝜑 → ( 𝑥 ∈ 𝐴 ↦ 𝐵 ) = ( 𝑥 ∈ 𝐴 ↦ 𝐵 ) ) |
| 14 |
|
eqidd |
⊢ ( 𝜑 → ( 𝑥 ∈ 𝐴 ↦ 𝐶 ) = ( 𝑥 ∈ 𝐴 ↦ 𝐶 ) ) |
| 15 |
12 1 3 13 14
|
offval2 |
⊢ ( 𝜑 → ( ( 𝑥 ∈ 𝐴 ↦ 𝐵 ) ∘f + ( 𝑥 ∈ 𝐴 ↦ 𝐶 ) ) = ( 𝑥 ∈ 𝐴 ↦ ( 𝐵 + 𝐶 ) ) ) |
| 16 |
|
eqid |
⊢ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℜ ‘ 𝐶 ) ) , ( ℜ ‘ 𝐶 ) , 0 ) ) ) = ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℜ ‘ 𝐶 ) ) , ( ℜ ‘ 𝐶 ) , 0 ) ) ) |
| 17 |
|
eqid |
⊢ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℜ ‘ 𝐶 ) ) , - ( ℜ ‘ 𝐶 ) , 0 ) ) ) = ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℜ ‘ 𝐶 ) ) , - ( ℜ ‘ 𝐶 ) , 0 ) ) ) |
| 18 |
|
eqid |
⊢ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℑ ‘ 𝐶 ) ) , ( ℑ ‘ 𝐶 ) , 0 ) ) ) = ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℑ ‘ 𝐶 ) ) , ( ℑ ‘ 𝐶 ) , 0 ) ) ) |
| 19 |
|
eqid |
⊢ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℑ ‘ 𝐶 ) ) , - ( ℑ ‘ 𝐶 ) , 0 ) ) ) = ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℑ ‘ 𝐶 ) ) , - ( ℑ ‘ 𝐶 ) , 0 ) ) ) |
| 20 |
16 17 18 19 3
|
iblcnlem |
⊢ ( 𝜑 → ( ( 𝑥 ∈ 𝐴 ↦ 𝐶 ) ∈ 𝐿1 ↔ ( ( 𝑥 ∈ 𝐴 ↦ 𝐶 ) ∈ MblFn ∧ ( ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℜ ‘ 𝐶 ) ) , ( ℜ ‘ 𝐶 ) , 0 ) ) ) ∈ ℝ ∧ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℜ ‘ 𝐶 ) ) , - ( ℜ ‘ 𝐶 ) , 0 ) ) ) ∈ ℝ ) ∧ ( ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℑ ‘ 𝐶 ) ) , ( ℑ ‘ 𝐶 ) , 0 ) ) ) ∈ ℝ ∧ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℑ ‘ 𝐶 ) ) , - ( ℑ ‘ 𝐶 ) , 0 ) ) ) ∈ ℝ ) ) ) ) |
| 21 |
4 20
|
mpbid |
⊢ ( 𝜑 → ( ( 𝑥 ∈ 𝐴 ↦ 𝐶 ) ∈ MblFn ∧ ( ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℜ ‘ 𝐶 ) ) , ( ℜ ‘ 𝐶 ) , 0 ) ) ) ∈ ℝ ∧ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℜ ‘ 𝐶 ) ) , - ( ℜ ‘ 𝐶 ) , 0 ) ) ) ∈ ℝ ) ∧ ( ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℑ ‘ 𝐶 ) ) , ( ℑ ‘ 𝐶 ) , 0 ) ) ) ∈ ℝ ∧ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℑ ‘ 𝐶 ) ) , - ( ℑ ‘ 𝐶 ) , 0 ) ) ) ∈ ℝ ) ) ) |
| 22 |
21
|
simp1d |
⊢ ( 𝜑 → ( 𝑥 ∈ 𝐴 ↦ 𝐶 ) ∈ MblFn ) |
| 23 |
11 22
|
mbfadd |
⊢ ( 𝜑 → ( ( 𝑥 ∈ 𝐴 ↦ 𝐵 ) ∘f + ( 𝑥 ∈ 𝐴 ↦ 𝐶 ) ) ∈ MblFn ) |
| 24 |
15 23
|
eqeltrrd |
⊢ ( 𝜑 → ( 𝑥 ∈ 𝐴 ↦ ( 𝐵 + 𝐶 ) ) ∈ MblFn ) |
| 25 |
11 1
|
mbfmptcl |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → 𝐵 ∈ ℂ ) |
| 26 |
25
|
recld |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → ( ℜ ‘ 𝐵 ) ∈ ℝ ) |
| 27 |
22 3
|
mbfmptcl |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → 𝐶 ∈ ℂ ) |
| 28 |
27
|
recld |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → ( ℜ ‘ 𝐶 ) ∈ ℝ ) |
| 29 |
25 27
|
readdd |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → ( ℜ ‘ ( 𝐵 + 𝐶 ) ) = ( ( ℜ ‘ 𝐵 ) + ( ℜ ‘ 𝐶 ) ) ) |
| 30 |
25
|
ismbfcn2 |
⊢ ( 𝜑 → ( ( 𝑥 ∈ 𝐴 ↦ 𝐵 ) ∈ MblFn ↔ ( ( 𝑥 ∈ 𝐴 ↦ ( ℜ ‘ 𝐵 ) ) ∈ MblFn ∧ ( 𝑥 ∈ 𝐴 ↦ ( ℑ ‘ 𝐵 ) ) ∈ MblFn ) ) ) |
| 31 |
11 30
|
mpbid |
⊢ ( 𝜑 → ( ( 𝑥 ∈ 𝐴 ↦ ( ℜ ‘ 𝐵 ) ) ∈ MblFn ∧ ( 𝑥 ∈ 𝐴 ↦ ( ℑ ‘ 𝐵 ) ) ∈ MblFn ) ) |
| 32 |
31
|
simpld |
⊢ ( 𝜑 → ( 𝑥 ∈ 𝐴 ↦ ( ℜ ‘ 𝐵 ) ) ∈ MblFn ) |
| 33 |
27
|
ismbfcn2 |
⊢ ( 𝜑 → ( ( 𝑥 ∈ 𝐴 ↦ 𝐶 ) ∈ MblFn ↔ ( ( 𝑥 ∈ 𝐴 ↦ ( ℜ ‘ 𝐶 ) ) ∈ MblFn ∧ ( 𝑥 ∈ 𝐴 ↦ ( ℑ ‘ 𝐶 ) ) ∈ MblFn ) ) ) |
| 34 |
22 33
|
mpbid |
⊢ ( 𝜑 → ( ( 𝑥 ∈ 𝐴 ↦ ( ℜ ‘ 𝐶 ) ) ∈ MblFn ∧ ( 𝑥 ∈ 𝐴 ↦ ( ℑ ‘ 𝐶 ) ) ∈ MblFn ) ) |
| 35 |
34
|
simpld |
⊢ ( 𝜑 → ( 𝑥 ∈ 𝐴 ↦ ( ℜ ‘ 𝐶 ) ) ∈ MblFn ) |
| 36 |
10
|
simp2d |
⊢ ( 𝜑 → ( ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℜ ‘ 𝐵 ) ) , ( ℜ ‘ 𝐵 ) , 0 ) ) ) ∈ ℝ ∧ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℜ ‘ 𝐵 ) ) , - ( ℜ ‘ 𝐵 ) , 0 ) ) ) ∈ ℝ ) ) |
| 37 |
36
|
simpld |
⊢ ( 𝜑 → ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℜ ‘ 𝐵 ) ) , ( ℜ ‘ 𝐵 ) , 0 ) ) ) ∈ ℝ ) |
| 38 |
21
|
simp2d |
⊢ ( 𝜑 → ( ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℜ ‘ 𝐶 ) ) , ( ℜ ‘ 𝐶 ) , 0 ) ) ) ∈ ℝ ∧ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℜ ‘ 𝐶 ) ) , - ( ℜ ‘ 𝐶 ) , 0 ) ) ) ∈ ℝ ) ) |
| 39 |
38
|
simpld |
⊢ ( 𝜑 → ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℜ ‘ 𝐶 ) ) , ( ℜ ‘ 𝐶 ) , 0 ) ) ) ∈ ℝ ) |
| 40 |
26 28 29 32 35 37 39
|
ibladdlem |
⊢ ( 𝜑 → ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℜ ‘ ( 𝐵 + 𝐶 ) ) ) , ( ℜ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) ∈ ℝ ) |
| 41 |
26
|
renegcld |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → - ( ℜ ‘ 𝐵 ) ∈ ℝ ) |
| 42 |
28
|
renegcld |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → - ( ℜ ‘ 𝐶 ) ∈ ℝ ) |
| 43 |
29
|
negeqd |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → - ( ℜ ‘ ( 𝐵 + 𝐶 ) ) = - ( ( ℜ ‘ 𝐵 ) + ( ℜ ‘ 𝐶 ) ) ) |
| 44 |
26
|
recnd |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → ( ℜ ‘ 𝐵 ) ∈ ℂ ) |
| 45 |
28
|
recnd |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → ( ℜ ‘ 𝐶 ) ∈ ℂ ) |
| 46 |
44 45
|
negdid |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → - ( ( ℜ ‘ 𝐵 ) + ( ℜ ‘ 𝐶 ) ) = ( - ( ℜ ‘ 𝐵 ) + - ( ℜ ‘ 𝐶 ) ) ) |
| 47 |
43 46
|
eqtrd |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → - ( ℜ ‘ ( 𝐵 + 𝐶 ) ) = ( - ( ℜ ‘ 𝐵 ) + - ( ℜ ‘ 𝐶 ) ) ) |
| 48 |
26 32
|
mbfneg |
⊢ ( 𝜑 → ( 𝑥 ∈ 𝐴 ↦ - ( ℜ ‘ 𝐵 ) ) ∈ MblFn ) |
| 49 |
28 35
|
mbfneg |
⊢ ( 𝜑 → ( 𝑥 ∈ 𝐴 ↦ - ( ℜ ‘ 𝐶 ) ) ∈ MblFn ) |
| 50 |
36
|
simprd |
⊢ ( 𝜑 → ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℜ ‘ 𝐵 ) ) , - ( ℜ ‘ 𝐵 ) , 0 ) ) ) ∈ ℝ ) |
| 51 |
38
|
simprd |
⊢ ( 𝜑 → ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℜ ‘ 𝐶 ) ) , - ( ℜ ‘ 𝐶 ) , 0 ) ) ) ∈ ℝ ) |
| 52 |
41 42 47 48 49 50 51
|
ibladdlem |
⊢ ( 𝜑 → ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℜ ‘ ( 𝐵 + 𝐶 ) ) ) , - ( ℜ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) ∈ ℝ ) |
| 53 |
40 52
|
jca |
⊢ ( 𝜑 → ( ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℜ ‘ ( 𝐵 + 𝐶 ) ) ) , ( ℜ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) ∈ ℝ ∧ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℜ ‘ ( 𝐵 + 𝐶 ) ) ) , - ( ℜ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) ∈ ℝ ) ) |
| 54 |
25
|
imcld |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → ( ℑ ‘ 𝐵 ) ∈ ℝ ) |
| 55 |
27
|
imcld |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → ( ℑ ‘ 𝐶 ) ∈ ℝ ) |
| 56 |
25 27
|
imaddd |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → ( ℑ ‘ ( 𝐵 + 𝐶 ) ) = ( ( ℑ ‘ 𝐵 ) + ( ℑ ‘ 𝐶 ) ) ) |
| 57 |
31
|
simprd |
⊢ ( 𝜑 → ( 𝑥 ∈ 𝐴 ↦ ( ℑ ‘ 𝐵 ) ) ∈ MblFn ) |
| 58 |
34
|
simprd |
⊢ ( 𝜑 → ( 𝑥 ∈ 𝐴 ↦ ( ℑ ‘ 𝐶 ) ) ∈ MblFn ) |
| 59 |
10
|
simp3d |
⊢ ( 𝜑 → ( ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℑ ‘ 𝐵 ) ) , ( ℑ ‘ 𝐵 ) , 0 ) ) ) ∈ ℝ ∧ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℑ ‘ 𝐵 ) ) , - ( ℑ ‘ 𝐵 ) , 0 ) ) ) ∈ ℝ ) ) |
| 60 |
59
|
simpld |
⊢ ( 𝜑 → ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℑ ‘ 𝐵 ) ) , ( ℑ ‘ 𝐵 ) , 0 ) ) ) ∈ ℝ ) |
| 61 |
21
|
simp3d |
⊢ ( 𝜑 → ( ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℑ ‘ 𝐶 ) ) , ( ℑ ‘ 𝐶 ) , 0 ) ) ) ∈ ℝ ∧ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℑ ‘ 𝐶 ) ) , - ( ℑ ‘ 𝐶 ) , 0 ) ) ) ∈ ℝ ) ) |
| 62 |
61
|
simpld |
⊢ ( 𝜑 → ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℑ ‘ 𝐶 ) ) , ( ℑ ‘ 𝐶 ) , 0 ) ) ) ∈ ℝ ) |
| 63 |
54 55 56 57 58 60 62
|
ibladdlem |
⊢ ( 𝜑 → ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℑ ‘ ( 𝐵 + 𝐶 ) ) ) , ( ℑ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) ∈ ℝ ) |
| 64 |
54
|
renegcld |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → - ( ℑ ‘ 𝐵 ) ∈ ℝ ) |
| 65 |
55
|
renegcld |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → - ( ℑ ‘ 𝐶 ) ∈ ℝ ) |
| 66 |
56
|
negeqd |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → - ( ℑ ‘ ( 𝐵 + 𝐶 ) ) = - ( ( ℑ ‘ 𝐵 ) + ( ℑ ‘ 𝐶 ) ) ) |
| 67 |
54
|
recnd |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → ( ℑ ‘ 𝐵 ) ∈ ℂ ) |
| 68 |
55
|
recnd |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → ( ℑ ‘ 𝐶 ) ∈ ℂ ) |
| 69 |
67 68
|
negdid |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → - ( ( ℑ ‘ 𝐵 ) + ( ℑ ‘ 𝐶 ) ) = ( - ( ℑ ‘ 𝐵 ) + - ( ℑ ‘ 𝐶 ) ) ) |
| 70 |
66 69
|
eqtrd |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → - ( ℑ ‘ ( 𝐵 + 𝐶 ) ) = ( - ( ℑ ‘ 𝐵 ) + - ( ℑ ‘ 𝐶 ) ) ) |
| 71 |
54 57
|
mbfneg |
⊢ ( 𝜑 → ( 𝑥 ∈ 𝐴 ↦ - ( ℑ ‘ 𝐵 ) ) ∈ MblFn ) |
| 72 |
55 58
|
mbfneg |
⊢ ( 𝜑 → ( 𝑥 ∈ 𝐴 ↦ - ( ℑ ‘ 𝐶 ) ) ∈ MblFn ) |
| 73 |
59
|
simprd |
⊢ ( 𝜑 → ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℑ ‘ 𝐵 ) ) , - ( ℑ ‘ 𝐵 ) , 0 ) ) ) ∈ ℝ ) |
| 74 |
61
|
simprd |
⊢ ( 𝜑 → ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℑ ‘ 𝐶 ) ) , - ( ℑ ‘ 𝐶 ) , 0 ) ) ) ∈ ℝ ) |
| 75 |
64 65 70 71 72 73 74
|
ibladdlem |
⊢ ( 𝜑 → ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℑ ‘ ( 𝐵 + 𝐶 ) ) ) , - ( ℑ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) ∈ ℝ ) |
| 76 |
63 75
|
jca |
⊢ ( 𝜑 → ( ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℑ ‘ ( 𝐵 + 𝐶 ) ) ) , ( ℑ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) ∈ ℝ ∧ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℑ ‘ ( 𝐵 + 𝐶 ) ) ) , - ( ℑ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) ∈ ℝ ) ) |
| 77 |
|
eqid |
⊢ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℜ ‘ ( 𝐵 + 𝐶 ) ) ) , ( ℜ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) = ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℜ ‘ ( 𝐵 + 𝐶 ) ) ) , ( ℜ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) |
| 78 |
|
eqid |
⊢ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℜ ‘ ( 𝐵 + 𝐶 ) ) ) , - ( ℜ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) = ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℜ ‘ ( 𝐵 + 𝐶 ) ) ) , - ( ℜ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) |
| 79 |
|
eqid |
⊢ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℑ ‘ ( 𝐵 + 𝐶 ) ) ) , ( ℑ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) = ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℑ ‘ ( 𝐵 + 𝐶 ) ) ) , ( ℑ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) |
| 80 |
|
eqid |
⊢ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℑ ‘ ( 𝐵 + 𝐶 ) ) ) , - ( ℑ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) = ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℑ ‘ ( 𝐵 + 𝐶 ) ) ) , - ( ℑ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) |
| 81 |
|
ovexd |
⊢ ( ( 𝜑 ∧ 𝑥 ∈ 𝐴 ) → ( 𝐵 + 𝐶 ) ∈ V ) |
| 82 |
77 78 79 80 81
|
iblcnlem |
⊢ ( 𝜑 → ( ( 𝑥 ∈ 𝐴 ↦ ( 𝐵 + 𝐶 ) ) ∈ 𝐿1 ↔ ( ( 𝑥 ∈ 𝐴 ↦ ( 𝐵 + 𝐶 ) ) ∈ MblFn ∧ ( ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℜ ‘ ( 𝐵 + 𝐶 ) ) ) , ( ℜ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) ∈ ℝ ∧ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℜ ‘ ( 𝐵 + 𝐶 ) ) ) , - ( ℜ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) ∈ ℝ ) ∧ ( ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ ( ℑ ‘ ( 𝐵 + 𝐶 ) ) ) , ( ℑ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) ∈ ℝ ∧ ( ∫2 ‘ ( 𝑥 ∈ ℝ ↦ if ( ( 𝑥 ∈ 𝐴 ∧ 0 ≤ - ( ℑ ‘ ( 𝐵 + 𝐶 ) ) ) , - ( ℑ ‘ ( 𝐵 + 𝐶 ) ) , 0 ) ) ) ∈ ℝ ) ) ) ) |
| 83 |
24 53 76 82
|
mpbir3and |
⊢ ( 𝜑 → ( 𝑥 ∈ 𝐴 ↦ ( 𝐵 + 𝐶 ) ) ∈ 𝐿1 ) |