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Theorem voliunlem3 23366
Description: Lemma for voliun 23368. (Contributed by Mario Carneiro, 20-Mar-2014.)
Hypotheses
Ref Expression
voliunlem.3 (𝜑𝐹:ℕ⟶dom vol)
voliunlem.5 (𝜑Disj 𝑖 ∈ ℕ (𝐹𝑖))
voliunlem.6 𝐻 = (𝑛 ∈ ℕ ↦ (vol*‘(𝑥 ∩ (𝐹𝑛))))
voliunlem3.1 𝑆 = seq1( + , 𝐺)
voliunlem3.2 𝐺 = (𝑛 ∈ ℕ ↦ (vol‘(𝐹𝑛)))
voliunlem3.4 (𝜑 → ∀𝑖 ∈ ℕ (vol‘(𝐹𝑖)) ∈ ℝ)
Assertion
Ref Expression
voliunlem3 (𝜑 → (vol‘ ran 𝐹) = sup(ran 𝑆, ℝ*, < ))
Distinct variable groups:   𝑖,𝑛,𝑥,𝐹   𝑥,𝑆   𝜑,𝑛,𝑥
Allowed substitution hints:   𝜑(𝑖)   𝑆(𝑖,𝑛)   𝐺(𝑥,𝑖,𝑛)   𝐻(𝑥,𝑖,𝑛)

Proof of Theorem voliunlem3
Dummy variables 𝑘 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 voliunlem.3 . . . 4 (𝜑𝐹:ℕ⟶dom vol)
2 voliunlem.5 . . . 4 (𝜑Disj 𝑖 ∈ ℕ (𝐹𝑖))
3 voliunlem.6 . . . 4 𝐻 = (𝑛 ∈ ℕ ↦ (vol*‘(𝑥 ∩ (𝐹𝑛))))
41, 2, 3voliunlem2 23365 . . 3 (𝜑 ran 𝐹 ∈ dom vol)
5 mblvol 23344 . . 3 ( ran 𝐹 ∈ dom vol → (vol‘ ran 𝐹) = (vol*‘ ran 𝐹))
64, 5syl 17 . 2 (𝜑 → (vol‘ ran 𝐹) = (vol*‘ ran 𝐹))
7 eqid 2651 . . . . 5 seq1( + , (𝑛 ∈ ℕ ↦ (vol*‘(𝐹𝑛)))) = seq1( + , (𝑛 ∈ ℕ ↦ (vol*‘(𝐹𝑛))))
8 eqid 2651 . . . . 5 (𝑛 ∈ ℕ ↦ (vol*‘(𝐹𝑛))) = (𝑛 ∈ ℕ ↦ (vol*‘(𝐹𝑛)))
91ffvelrnda 6399 . . . . . 6 ((𝜑𝑛 ∈ ℕ) → (𝐹𝑛) ∈ dom vol)
10 mblss 23345 . . . . . 6 ((𝐹𝑛) ∈ dom vol → (𝐹𝑛) ⊆ ℝ)
119, 10syl 17 . . . . 5 ((𝜑𝑛 ∈ ℕ) → (𝐹𝑛) ⊆ ℝ)
12 mblvol 23344 . . . . . . 7 ((𝐹𝑛) ∈ dom vol → (vol‘(𝐹𝑛)) = (vol*‘(𝐹𝑛)))
139, 12syl 17 . . . . . 6 ((𝜑𝑛 ∈ ℕ) → (vol‘(𝐹𝑛)) = (vol*‘(𝐹𝑛)))
14 voliunlem3.4 . . . . . . 7 (𝜑 → ∀𝑖 ∈ ℕ (vol‘(𝐹𝑖)) ∈ ℝ)
15 fveq2 6229 . . . . . . . . . 10 (𝑖 = 𝑛 → (𝐹𝑖) = (𝐹𝑛))
1615fveq2d 6233 . . . . . . . . 9 (𝑖 = 𝑛 → (vol‘(𝐹𝑖)) = (vol‘(𝐹𝑛)))
1716eleq1d 2715 . . . . . . . 8 (𝑖 = 𝑛 → ((vol‘(𝐹𝑖)) ∈ ℝ ↔ (vol‘(𝐹𝑛)) ∈ ℝ))
1817rspccva 3339 . . . . . . 7 ((∀𝑖 ∈ ℕ (vol‘(𝐹𝑖)) ∈ ℝ ∧ 𝑛 ∈ ℕ) → (vol‘(𝐹𝑛)) ∈ ℝ)
1914, 18sylan 487 . . . . . 6 ((𝜑𝑛 ∈ ℕ) → (vol‘(𝐹𝑛)) ∈ ℝ)
2013, 19eqeltrrd 2731 . . . . 5 ((𝜑𝑛 ∈ ℕ) → (vol*‘(𝐹𝑛)) ∈ ℝ)
217, 8, 11, 20ovoliun 23319 . . . 4 (𝜑 → (vol*‘ 𝑛 ∈ ℕ (𝐹𝑛)) ≤ sup(ran seq1( + , (𝑛 ∈ ℕ ↦ (vol*‘(𝐹𝑛)))), ℝ*, < ))
22 ffn 6083 . . . . . . 7 (𝐹:ℕ⟶dom vol → 𝐹 Fn ℕ)
231, 22syl 17 . . . . . 6 (𝜑𝐹 Fn ℕ)
24 fniunfv 6545 . . . . . 6 (𝐹 Fn ℕ → 𝑛 ∈ ℕ (𝐹𝑛) = ran 𝐹)
2523, 24syl 17 . . . . 5 (𝜑 𝑛 ∈ ℕ (𝐹𝑛) = ran 𝐹)
2625fveq2d 6233 . . . 4 (𝜑 → (vol*‘ 𝑛 ∈ ℕ (𝐹𝑛)) = (vol*‘ ran 𝐹))
27 voliunlem3.1 . . . . . . 7 𝑆 = seq1( + , 𝐺)
28 voliunlem3.2 . . . . . . . . 9 𝐺 = (𝑛 ∈ ℕ ↦ (vol‘(𝐹𝑛)))
2913mpteq2dva 4777 . . . . . . . . 9 (𝜑 → (𝑛 ∈ ℕ ↦ (vol‘(𝐹𝑛))) = (𝑛 ∈ ℕ ↦ (vol*‘(𝐹𝑛))))
3028, 29syl5eq 2697 . . . . . . . 8 (𝜑𝐺 = (𝑛 ∈ ℕ ↦ (vol*‘(𝐹𝑛))))
3130seqeq3d 12849 . . . . . . 7 (𝜑 → seq1( + , 𝐺) = seq1( + , (𝑛 ∈ ℕ ↦ (vol*‘(𝐹𝑛)))))
3227, 31syl5req 2698 . . . . . 6 (𝜑 → seq1( + , (𝑛 ∈ ℕ ↦ (vol*‘(𝐹𝑛)))) = 𝑆)
3332rneqd 5385 . . . . 5 (𝜑 → ran seq1( + , (𝑛 ∈ ℕ ↦ (vol*‘(𝐹𝑛)))) = ran 𝑆)
3433supeq1d 8393 . . . 4 (𝜑 → sup(ran seq1( + , (𝑛 ∈ ℕ ↦ (vol*‘(𝐹𝑛)))), ℝ*, < ) = sup(ran 𝑆, ℝ*, < ))
3521, 26, 343brtr3d 4716 . . 3 (𝜑 → (vol*‘ ran 𝐹) ≤ sup(ran 𝑆, ℝ*, < ))
36 frn 6091 . . . . . . . . . . . . 13 (𝐹:ℕ⟶dom vol → ran 𝐹 ⊆ dom vol)
371, 36syl 17 . . . . . . . . . . . 12 (𝜑 → ran 𝐹 ⊆ dom vol)
38 mblss 23345 . . . . . . . . . . . . . 14 (𝑥 ∈ dom vol → 𝑥 ⊆ ℝ)
39 reex 10065 . . . . . . . . . . . . . . 15 ℝ ∈ V
4039elpw2 4858 . . . . . . . . . . . . . 14 (𝑥 ∈ 𝒫 ℝ ↔ 𝑥 ⊆ ℝ)
4138, 40sylibr 224 . . . . . . . . . . . . 13 (𝑥 ∈ dom vol → 𝑥 ∈ 𝒫 ℝ)
4241ssriv 3640 . . . . . . . . . . . 12 dom vol ⊆ 𝒫 ℝ
4337, 42syl6ss 3648 . . . . . . . . . . 11 (𝜑 → ran 𝐹 ⊆ 𝒫 ℝ)
44 sspwuni 4643 . . . . . . . . . . 11 (ran 𝐹 ⊆ 𝒫 ℝ ↔ ran 𝐹 ⊆ ℝ)
4543, 44sylib 208 . . . . . . . . . 10 (𝜑 ran 𝐹 ⊆ ℝ)
46 ovolcl 23292 . . . . . . . . . 10 ( ran 𝐹 ⊆ ℝ → (vol*‘ ran 𝐹) ∈ ℝ*)
4745, 46syl 17 . . . . . . . . 9 (𝜑 → (vol*‘ ran 𝐹) ∈ ℝ*)
48 ovolge0 23295 . . . . . . . . . 10 ( ran 𝐹 ⊆ ℝ → 0 ≤ (vol*‘ ran 𝐹))
4945, 48syl 17 . . . . . . . . 9 (𝜑 → 0 ≤ (vol*‘ ran 𝐹))
50 mnflt0 11997 . . . . . . . . . 10 -∞ < 0
51 mnfxr 10134 . . . . . . . . . . 11 -∞ ∈ ℝ*
52 0xr 10124 . . . . . . . . . . 11 0 ∈ ℝ*
53 xrltletr 12026 . . . . . . . . . . 11 ((-∞ ∈ ℝ* ∧ 0 ∈ ℝ* ∧ (vol*‘ ran 𝐹) ∈ ℝ*) → ((-∞ < 0 ∧ 0 ≤ (vol*‘ ran 𝐹)) → -∞ < (vol*‘ ran 𝐹)))
5451, 52, 53mp3an12 1454 . . . . . . . . . 10 ((vol*‘ ran 𝐹) ∈ ℝ* → ((-∞ < 0 ∧ 0 ≤ (vol*‘ ran 𝐹)) → -∞ < (vol*‘ ran 𝐹)))
5550, 54mpani 712 . . . . . . . . 9 ((vol*‘ ran 𝐹) ∈ ℝ* → (0 ≤ (vol*‘ ran 𝐹) → -∞ < (vol*‘ ran 𝐹)))
5647, 49, 55sylc 65 . . . . . . . 8 (𝜑 → -∞ < (vol*‘ ran 𝐹))
57 xrrebnd 12037 . . . . . . . . . 10 ((vol*‘ ran 𝐹) ∈ ℝ* → ((vol*‘ ran 𝐹) ∈ ℝ ↔ (-∞ < (vol*‘ ran 𝐹) ∧ (vol*‘ ran 𝐹) < +∞)))
5847, 57syl 17 . . . . . . . . 9 (𝜑 → ((vol*‘ ran 𝐹) ∈ ℝ ↔ (-∞ < (vol*‘ ran 𝐹) ∧ (vol*‘ ran 𝐹) < +∞)))
5939elpw2 4858 . . . . . . . . . . . 12 ( ran 𝐹 ∈ 𝒫 ℝ ↔ ran 𝐹 ⊆ ℝ)
6045, 59sylibr 224 . . . . . . . . . . 11 (𝜑 ran 𝐹 ∈ 𝒫 ℝ)
61 simpl 472 . . . . . . . . . . . . . . 15 ((𝑥 = ran 𝐹𝜑) → 𝑥 = ran 𝐹)
6261sseq1d 3665 . . . . . . . . . . . . . 14 ((𝑥 = ran 𝐹𝜑) → (𝑥 ⊆ ℝ ↔ ran 𝐹 ⊆ ℝ))
6361fveq2d 6233 . . . . . . . . . . . . . . . 16 ((𝑥 = ran 𝐹𝜑) → (vol*‘𝑥) = (vol*‘ ran 𝐹))
6463eleq1d 2715 . . . . . . . . . . . . . . 15 ((𝑥 = ran 𝐹𝜑) → ((vol*‘𝑥) ∈ ℝ ↔ (vol*‘ ran 𝐹) ∈ ℝ))
65 simpll 805 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝑥 = ran 𝐹𝜑) ∧ 𝑛 ∈ ℕ) → 𝑥 = ran 𝐹)
6665ineq1d 3846 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((𝑥 = ran 𝐹𝜑) ∧ 𝑛 ∈ ℕ) → (𝑥 ∩ (𝐹𝑛)) = ( ran 𝐹 ∩ (𝐹𝑛)))
67 fnfvelrn 6396 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝐹 Fn ℕ ∧ 𝑛 ∈ ℕ) → (𝐹𝑛) ∈ ran 𝐹)
6823, 67sylan 487 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((𝜑𝑛 ∈ ℕ) → (𝐹𝑛) ∈ ran 𝐹)
69 elssuni 4499 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((𝐹𝑛) ∈ ran 𝐹 → (𝐹𝑛) ⊆ ran 𝐹)
7068, 69syl 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ((𝜑𝑛 ∈ ℕ) → (𝐹𝑛) ⊆ ran 𝐹)
7170adantll 750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝑥 = ran 𝐹𝜑) ∧ 𝑛 ∈ ℕ) → (𝐹𝑛) ⊆ ran 𝐹)
72 sseqin2 3850 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ((𝐹𝑛) ⊆ ran 𝐹 ↔ ( ran 𝐹 ∩ (𝐹𝑛)) = (𝐹𝑛))
7371, 72sylib 208 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((𝑥 = ran 𝐹𝜑) ∧ 𝑛 ∈ ℕ) → ( ran 𝐹 ∩ (𝐹𝑛)) = (𝐹𝑛))
7466, 73eqtrd 2685 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (((𝑥 = ran 𝐹𝜑) ∧ 𝑛 ∈ ℕ) → (𝑥 ∩ (𝐹𝑛)) = (𝐹𝑛))
7574fveq2d 6233 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝑥 = ran 𝐹𝜑) ∧ 𝑛 ∈ ℕ) → (vol*‘(𝑥 ∩ (𝐹𝑛))) = (vol*‘(𝐹𝑛)))
7613adantll 750 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝑥 = ran 𝐹𝜑) ∧ 𝑛 ∈ ℕ) → (vol‘(𝐹𝑛)) = (vol*‘(𝐹𝑛)))
7775, 76eqtr4d 2688 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝑥 = ran 𝐹𝜑) ∧ 𝑛 ∈ ℕ) → (vol*‘(𝑥 ∩ (𝐹𝑛))) = (vol‘(𝐹𝑛)))
7877mpteq2dva 4777 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝑥 = ran 𝐹𝜑) → (𝑛 ∈ ℕ ↦ (vol*‘(𝑥 ∩ (𝐹𝑛)))) = (𝑛 ∈ ℕ ↦ (vol‘(𝐹𝑛))))
7978adantrr 753 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝑥 = ran 𝐹 ∧ (𝜑𝑘 ∈ ℕ)) → (𝑛 ∈ ℕ ↦ (vol*‘(𝑥 ∩ (𝐹𝑛)))) = (𝑛 ∈ ℕ ↦ (vol‘(𝐹𝑛))))
8079, 3, 283eqtr4g 2710 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑥 = ran 𝐹 ∧ (𝜑𝑘 ∈ ℕ)) → 𝐻 = 𝐺)
8180seqeq3d 12849 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑥 = ran 𝐹 ∧ (𝜑𝑘 ∈ ℕ)) → seq1( + , 𝐻) = seq1( + , 𝐺))
8281, 27syl6eqr 2703 . . . . . . . . . . . . . . . . . . . . 21 ((𝑥 = ran 𝐹 ∧ (𝜑𝑘 ∈ ℕ)) → seq1( + , 𝐻) = 𝑆)
8382fveq1d 6231 . . . . . . . . . . . . . . . . . . . 20 ((𝑥 = ran 𝐹 ∧ (𝜑𝑘 ∈ ℕ)) → (seq1( + , 𝐻)‘𝑘) = (𝑆𝑘))
84 difeq1 3754 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑥 = ran 𝐹 → (𝑥 ran 𝐹) = ( ran 𝐹 ran 𝐹))
85 difid 3981 . . . . . . . . . . . . . . . . . . . . . . . 24 ( ran 𝐹 ran 𝐹) = ∅
8684, 85syl6eq 2701 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑥 = ran 𝐹 → (𝑥 ran 𝐹) = ∅)
8786fveq2d 6233 . . . . . . . . . . . . . . . . . . . . . 22 (𝑥 = ran 𝐹 → (vol*‘(𝑥 ran 𝐹)) = (vol*‘∅))
88 ovol0 23307 . . . . . . . . . . . . . . . . . . . . . 22 (vol*‘∅) = 0
8987, 88syl6eq 2701 . . . . . . . . . . . . . . . . . . . . 21 (𝑥 = ran 𝐹 → (vol*‘(𝑥 ran 𝐹)) = 0)
9089adantr 480 . . . . . . . . . . . . . . . . . . . 20 ((𝑥 = ran 𝐹 ∧ (𝜑𝑘 ∈ ℕ)) → (vol*‘(𝑥 ran 𝐹)) = 0)
9183, 90oveq12d 6708 . . . . . . . . . . . . . . . . . . 19 ((𝑥 = ran 𝐹 ∧ (𝜑𝑘 ∈ ℕ)) → ((seq1( + , 𝐻)‘𝑘) + (vol*‘(𝑥 ran 𝐹))) = ((𝑆𝑘) + 0))
92 nnuz 11761 . . . . . . . . . . . . . . . . . . . . . . . . 25 ℕ = (ℤ‘1)
93 1zzd 11446 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝜑 → 1 ∈ ℤ)
94 fveq2 6229 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝑛 = 𝑘 → (𝐹𝑛) = (𝐹𝑘))
9594fveq2d 6233 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝑛 = 𝑘 → (vol‘(𝐹𝑛)) = (vol‘(𝐹𝑘)))
96 fvex 6239 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (vol‘(𝐹𝑘)) ∈ V
9795, 28, 96fvmpt 6321 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝑘 ∈ ℕ → (𝐺𝑘) = (vol‘(𝐹𝑘)))
9897adantl 481 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝜑𝑘 ∈ ℕ) → (𝐺𝑘) = (vol‘(𝐹𝑘)))
99 fveq2 6229 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (𝑖 = 𝑘 → (𝐹𝑖) = (𝐹𝑘))
10099fveq2d 6233 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝑖 = 𝑘 → (vol‘(𝐹𝑖)) = (vol‘(𝐹𝑘)))
101100eleq1d 2715 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝑖 = 𝑘 → ((vol‘(𝐹𝑖)) ∈ ℝ ↔ (vol‘(𝐹𝑘)) ∈ ℝ))
102101rspccva 3339 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((∀𝑖 ∈ ℕ (vol‘(𝐹𝑖)) ∈ ℝ ∧ 𝑘 ∈ ℕ) → (vol‘(𝐹𝑘)) ∈ ℝ)
10314, 102sylan 487 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝜑𝑘 ∈ ℕ) → (vol‘(𝐹𝑘)) ∈ ℝ)
10498, 103eqeltrd 2730 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑𝑘 ∈ ℕ) → (𝐺𝑘) ∈ ℝ)
10592, 93, 104serfre 12870 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝜑 → seq1( + , 𝐺):ℕ⟶ℝ)
10627feq1i 6074 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑆:ℕ⟶ℝ ↔ seq1( + , 𝐺):ℕ⟶ℝ)
107105, 106sylibr 224 . . . . . . . . . . . . . . . . . . . . . . 23 (𝜑𝑆:ℕ⟶ℝ)
108107ffvelrnda 6399 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑𝑘 ∈ ℕ) → (𝑆𝑘) ∈ ℝ)
109108adantl 481 . . . . . . . . . . . . . . . . . . . . 21 ((𝑥 = ran 𝐹 ∧ (𝜑𝑘 ∈ ℕ)) → (𝑆𝑘) ∈ ℝ)
110109recnd 10106 . . . . . . . . . . . . . . . . . . . 20 ((𝑥 = ran 𝐹 ∧ (𝜑𝑘 ∈ ℕ)) → (𝑆𝑘) ∈ ℂ)
111110addid1d 10274 . . . . . . . . . . . . . . . . . . 19 ((𝑥 = ran 𝐹 ∧ (𝜑𝑘 ∈ ℕ)) → ((𝑆𝑘) + 0) = (𝑆𝑘))
11291, 111eqtrd 2685 . . . . . . . . . . . . . . . . . 18 ((𝑥 = ran 𝐹 ∧ (𝜑𝑘 ∈ ℕ)) → ((seq1( + , 𝐻)‘𝑘) + (vol*‘(𝑥 ran 𝐹))) = (𝑆𝑘))
113 fveq2 6229 . . . . . . . . . . . . . . . . . . 19 (𝑥 = ran 𝐹 → (vol*‘𝑥) = (vol*‘ ran 𝐹))
114113adantr 480 . . . . . . . . . . . . . . . . . 18 ((𝑥 = ran 𝐹 ∧ (𝜑𝑘 ∈ ℕ)) → (vol*‘𝑥) = (vol*‘ ran 𝐹))
115112, 114breq12d 4698 . . . . . . . . . . . . . . . . 17 ((𝑥 = ran 𝐹 ∧ (𝜑𝑘 ∈ ℕ)) → (((seq1( + , 𝐻)‘𝑘) + (vol*‘(𝑥 ran 𝐹))) ≤ (vol*‘𝑥) ↔ (𝑆𝑘) ≤ (vol*‘ ran 𝐹)))
116115expr 642 . . . . . . . . . . . . . . . 16 ((𝑥 = ran 𝐹𝜑) → (𝑘 ∈ ℕ → (((seq1( + , 𝐻)‘𝑘) + (vol*‘(𝑥 ran 𝐹))) ≤ (vol*‘𝑥) ↔ (𝑆𝑘) ≤ (vol*‘ ran 𝐹))))
117116pm5.74d 262 . . . . . . . . . . . . . . 15 ((𝑥 = ran 𝐹𝜑) → ((𝑘 ∈ ℕ → ((seq1( + , 𝐻)‘𝑘) + (vol*‘(𝑥 ran 𝐹))) ≤ (vol*‘𝑥)) ↔ (𝑘 ∈ ℕ → (𝑆𝑘) ≤ (vol*‘ ran 𝐹))))
11864, 117imbi12d 333 . . . . . . . . . . . . . 14 ((𝑥 = ran 𝐹𝜑) → (((vol*‘𝑥) ∈ ℝ → (𝑘 ∈ ℕ → ((seq1( + , 𝐻)‘𝑘) + (vol*‘(𝑥 ran 𝐹))) ≤ (vol*‘𝑥))) ↔ ((vol*‘ ran 𝐹) ∈ ℝ → (𝑘 ∈ ℕ → (𝑆𝑘) ≤ (vol*‘ ran 𝐹)))))
11962, 118imbi12d 333 . . . . . . . . . . . . 13 ((𝑥 = ran 𝐹𝜑) → ((𝑥 ⊆ ℝ → ((vol*‘𝑥) ∈ ℝ → (𝑘 ∈ ℕ → ((seq1( + , 𝐻)‘𝑘) + (vol*‘(𝑥 ran 𝐹))) ≤ (vol*‘𝑥)))) ↔ ( ran 𝐹 ⊆ ℝ → ((vol*‘ ran 𝐹) ∈ ℝ → (𝑘 ∈ ℕ → (𝑆𝑘) ≤ (vol*‘ ran 𝐹))))))
120119pm5.74da 723 . . . . . . . . . . . 12 (𝑥 = ran 𝐹 → ((𝜑 → (𝑥 ⊆ ℝ → ((vol*‘𝑥) ∈ ℝ → (𝑘 ∈ ℕ → ((seq1( + , 𝐻)‘𝑘) + (vol*‘(𝑥 ran 𝐹))) ≤ (vol*‘𝑥))))) ↔ (𝜑 → ( ran 𝐹 ⊆ ℝ → ((vol*‘ ran 𝐹) ∈ ℝ → (𝑘 ∈ ℕ → (𝑆𝑘) ≤ (vol*‘ ran 𝐹)))))))
12113ad2ant1 1102 . . . . . . . . . . . . . 14 ((𝜑𝑥 ⊆ ℝ ∧ (vol*‘𝑥) ∈ ℝ) → 𝐹:ℕ⟶dom vol)
12223ad2ant1 1102 . . . . . . . . . . . . . 14 ((𝜑𝑥 ⊆ ℝ ∧ (vol*‘𝑥) ∈ ℝ) → Disj 𝑖 ∈ ℕ (𝐹𝑖))
123 simp2 1082 . . . . . . . . . . . . . 14 ((𝜑𝑥 ⊆ ℝ ∧ (vol*‘𝑥) ∈ ℝ) → 𝑥 ⊆ ℝ)
124 simp3 1083 . . . . . . . . . . . . . 14 ((𝜑𝑥 ⊆ ℝ ∧ (vol*‘𝑥) ∈ ℝ) → (vol*‘𝑥) ∈ ℝ)
125121, 122, 3, 123, 124voliunlem1 23364 . . . . . . . . . . . . 13 (((𝜑𝑥 ⊆ ℝ ∧ (vol*‘𝑥) ∈ ℝ) ∧ 𝑘 ∈ ℕ) → ((seq1( + , 𝐻)‘𝑘) + (vol*‘(𝑥 ran 𝐹))) ≤ (vol*‘𝑥))
1261253exp1 1305 . . . . . . . . . . . 12 (𝜑 → (𝑥 ⊆ ℝ → ((vol*‘𝑥) ∈ ℝ → (𝑘 ∈ ℕ → ((seq1( + , 𝐻)‘𝑘) + (vol*‘(𝑥 ran 𝐹))) ≤ (vol*‘𝑥)))))
127120, 126vtoclg 3297 . . . . . . . . . . 11 ( ran 𝐹 ∈ 𝒫 ℝ → (𝜑 → ( ran 𝐹 ⊆ ℝ → ((vol*‘ ran 𝐹) ∈ ℝ → (𝑘 ∈ ℕ → (𝑆𝑘) ≤ (vol*‘ ran 𝐹))))))
12860, 127mpcom 38 . . . . . . . . . 10 (𝜑 → ( ran 𝐹 ⊆ ℝ → ((vol*‘ ran 𝐹) ∈ ℝ → (𝑘 ∈ ℕ → (𝑆𝑘) ≤ (vol*‘ ran 𝐹)))))
12945, 128mpd 15 . . . . . . . . 9 (𝜑 → ((vol*‘ ran 𝐹) ∈ ℝ → (𝑘 ∈ ℕ → (𝑆𝑘) ≤ (vol*‘ ran 𝐹))))
13058, 129sylbird 250 . . . . . . . 8 (𝜑 → ((-∞ < (vol*‘ ran 𝐹) ∧ (vol*‘ ran 𝐹) < +∞) → (𝑘 ∈ ℕ → (𝑆𝑘) ≤ (vol*‘ ran 𝐹))))
13156, 130mpand 711 . . . . . . 7 (𝜑 → ((vol*‘ ran 𝐹) < +∞ → (𝑘 ∈ ℕ → (𝑆𝑘) ≤ (vol*‘ ran 𝐹))))
132 nltpnft 12033 . . . . . . . . 9 ((vol*‘ ran 𝐹) ∈ ℝ* → ((vol*‘ ran 𝐹) = +∞ ↔ ¬ (vol*‘ ran 𝐹) < +∞))
13347, 132syl 17 . . . . . . . 8 (𝜑 → ((vol*‘ ran 𝐹) = +∞ ↔ ¬ (vol*‘ ran 𝐹) < +∞))
134 rexr 10123 . . . . . . . . . . 11 ((𝑆𝑘) ∈ ℝ → (𝑆𝑘) ∈ ℝ*)
135 pnfge 12002 . . . . . . . . . . 11 ((𝑆𝑘) ∈ ℝ* → (𝑆𝑘) ≤ +∞)
136108, 134, 1353syl 18 . . . . . . . . . 10 ((𝜑𝑘 ∈ ℕ) → (𝑆𝑘) ≤ +∞)
137136ex 449 . . . . . . . . 9 (𝜑 → (𝑘 ∈ ℕ → (𝑆𝑘) ≤ +∞))
138 breq2 4689 . . . . . . . . . 10 ((vol*‘ ran 𝐹) = +∞ → ((𝑆𝑘) ≤ (vol*‘ ran 𝐹) ↔ (𝑆𝑘) ≤ +∞))
139138imbi2d 329 . . . . . . . . 9 ((vol*‘ ran 𝐹) = +∞ → ((𝑘 ∈ ℕ → (𝑆𝑘) ≤ (vol*‘ ran 𝐹)) ↔ (𝑘 ∈ ℕ → (𝑆𝑘) ≤ +∞)))
140137, 139syl5ibrcom 237 . . . . . . . 8 (𝜑 → ((vol*‘ ran 𝐹) = +∞ → (𝑘 ∈ ℕ → (𝑆𝑘) ≤ (vol*‘ ran 𝐹))))
141133, 140sylbird 250 . . . . . . 7 (𝜑 → (¬ (vol*‘ ran 𝐹) < +∞ → (𝑘 ∈ ℕ → (𝑆𝑘) ≤ (vol*‘ ran 𝐹))))
142131, 141pm2.61d 170 . . . . . 6 (𝜑 → (𝑘 ∈ ℕ → (𝑆𝑘) ≤ (vol*‘ ran 𝐹)))
143142ralrimiv 2994 . . . . 5 (𝜑 → ∀𝑘 ∈ ℕ (𝑆𝑘) ≤ (vol*‘ ran 𝐹))
144 ffn 6083 . . . . . . 7 (𝑆:ℕ⟶ℝ → 𝑆 Fn ℕ)
145107, 144syl 17 . . . . . 6 (𝜑𝑆 Fn ℕ)
146 breq1 4688 . . . . . . 7 (𝑧 = (𝑆𝑘) → (𝑧 ≤ (vol*‘ ran 𝐹) ↔ (𝑆𝑘) ≤ (vol*‘ ran 𝐹)))
147146ralrn 6402 . . . . . 6 (𝑆 Fn ℕ → (∀𝑧 ∈ ran 𝑆 𝑧 ≤ (vol*‘ ran 𝐹) ↔ ∀𝑘 ∈ ℕ (𝑆𝑘) ≤ (vol*‘ ran 𝐹)))
148145, 147syl 17 . . . . 5 (𝜑 → (∀𝑧 ∈ ran 𝑆 𝑧 ≤ (vol*‘ ran 𝐹) ↔ ∀𝑘 ∈ ℕ (𝑆𝑘) ≤ (vol*‘ ran 𝐹)))
149143, 148mpbird 247 . . . 4 (𝜑 → ∀𝑧 ∈ ran 𝑆 𝑧 ≤ (vol*‘ ran 𝐹))
150 frn 6091 . . . . . . 7 (𝑆:ℕ⟶ℝ → ran 𝑆 ⊆ ℝ)
151107, 150syl 17 . . . . . 6 (𝜑 → ran 𝑆 ⊆ ℝ)
152 ressxr 10121 . . . . . 6 ℝ ⊆ ℝ*
153151, 152syl6ss 3648 . . . . 5 (𝜑 → ran 𝑆 ⊆ ℝ*)
154 supxrleub 12194 . . . . 5 ((ran 𝑆 ⊆ ℝ* ∧ (vol*‘ ran 𝐹) ∈ ℝ*) → (sup(ran 𝑆, ℝ*, < ) ≤ (vol*‘ ran 𝐹) ↔ ∀𝑧 ∈ ran 𝑆 𝑧 ≤ (vol*‘ ran 𝐹)))
155153, 47, 154syl2anc 694 . . . 4 (𝜑 → (sup(ran 𝑆, ℝ*, < ) ≤ (vol*‘ ran 𝐹) ↔ ∀𝑧 ∈ ran 𝑆 𝑧 ≤ (vol*‘ ran 𝐹)))
156149, 155mpbird 247 . . 3 (𝜑 → sup(ran 𝑆, ℝ*, < ) ≤ (vol*‘ ran 𝐹))
157 supxrcl 12183 . . . . 5 (ran 𝑆 ⊆ ℝ* → sup(ran 𝑆, ℝ*, < ) ∈ ℝ*)
158153, 157syl 17 . . . 4 (𝜑 → sup(ran 𝑆, ℝ*, < ) ∈ ℝ*)
159 xrletri3 12023 . . . 4 (((vol*‘ ran 𝐹) ∈ ℝ* ∧ sup(ran 𝑆, ℝ*, < ) ∈ ℝ*) → ((vol*‘ ran 𝐹) = sup(ran 𝑆, ℝ*, < ) ↔ ((vol*‘ ran 𝐹) ≤ sup(ran 𝑆, ℝ*, < ) ∧ sup(ran 𝑆, ℝ*, < ) ≤ (vol*‘ ran 𝐹))))
16047, 158, 159syl2anc 694 . . 3 (𝜑 → ((vol*‘ ran 𝐹) = sup(ran 𝑆, ℝ*, < ) ↔ ((vol*‘ ran 𝐹) ≤ sup(ran 𝑆, ℝ*, < ) ∧ sup(ran 𝑆, ℝ*, < ) ≤ (vol*‘ ran 𝐹))))
16135, 156, 160mpbir2and 977 . 2 (𝜑 → (vol*‘ ran 𝐹) = sup(ran 𝑆, ℝ*, < ))
1626, 161eqtrd 2685 1 (𝜑 → (vol‘ ran 𝐹) = sup(ran 𝑆, ℝ*, < ))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 196  wa 383  w3a 1054   = wceq 1523  wcel 2030  wral 2941  cdif 3604  cin 3606  wss 3607  c0 3948  𝒫 cpw 4191   cuni 4468   ciun 4552  Disj wdisj 4652   class class class wbr 4685  cmpt 4762  dom cdm 5143  ran crn 5144   Fn wfn 5921  wf 5922  cfv 5926  (class class class)co 6690  supcsup 8387  cr 9973  0cc0 9974  1c1 9975   + caddc 9977  +∞cpnf 10109  -∞cmnf 10110  *cxr 10111   < clt 10112  cle 10113  cn 11058  seqcseq 12841  vol*covol 23277  volcvol 23278
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1762  ax-4 1777  ax-5 1879  ax-6 1945  ax-7 1981  ax-8 2032  ax-9 2039  ax-10 2059  ax-11 2074  ax-12 2087  ax-13 2282  ax-ext 2631  ax-rep 4804  ax-sep 4814  ax-nul 4822  ax-pow 4873  ax-pr 4936  ax-un 6991  ax-inf2 8576  ax-cc 9295  ax-cnex 10030  ax-resscn 10031  ax-1cn 10032  ax-icn 10033  ax-addcl 10034  ax-addrcl 10035  ax-mulcl 10036  ax-mulrcl 10037  ax-mulcom 10038  ax-addass 10039  ax-mulass 10040  ax-distr 10041  ax-i2m1 10042  ax-1ne0 10043  ax-1rid 10044  ax-rnegex 10045  ax-rrecex 10046  ax-cnre 10047  ax-pre-lttri 10048  ax-pre-lttrn 10049  ax-pre-ltadd 10050  ax-pre-mulgt0 10051  ax-pre-sup 10052
This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3or 1055  df-3an 1056  df-tru 1526  df-fal 1529  df-ex 1745  df-nf 1750  df-sb 1938  df-eu 2502  df-mo 2503  df-clab 2638  df-cleq 2644  df-clel 2647  df-nfc 2782  df-ne 2824  df-nel 2927  df-ral 2946  df-rex 2947  df-reu 2948  df-rmo 2949  df-rab 2950  df-v 3233  df-sbc 3469  df-csb 3567  df-dif 3610  df-un 3612  df-in 3614  df-ss 3621  df-pss 3623  df-nul 3949  df-if 4120  df-pw 4193  df-sn 4211  df-pr 4213  df-tp 4215  df-op 4217  df-uni 4469  df-int 4508  df-iun 4554  df-disj 4653  df-br 4686  df-opab 4746  df-mpt 4763  df-tr 4786  df-id 5053  df-eprel 5058  df-po 5064  df-so 5065  df-fr 5102  df-se 5103  df-we 5104  df-xp 5149  df-rel 5150  df-cnv 5151  df-co 5152  df-dm 5153  df-rn 5154  df-res 5155  df-ima 5156  df-pred 5718  df-ord 5764  df-on 5765  df-lim 5766  df-suc 5767  df-iota 5889  df-fun 5928  df-fn 5929  df-f 5930  df-f1 5931  df-fo 5932  df-f1o 5933  df-fv 5934  df-isom 5935  df-riota 6651  df-ov 6693  df-oprab 6694  df-mpt2 6695  df-of 6939  df-om 7108  df-1st 7210  df-2nd 7211  df-wrecs 7452  df-recs 7513  df-rdg 7551  df-1o 7605  df-2o 7606  df-oadd 7609  df-er 7787  df-map 7901  df-pm 7902  df-en 7998  df-dom 7999  df-sdom 8000  df-fin 8001  df-sup 8389  df-inf 8390  df-oi 8456  df-card 8803  df-cda 9028  df-pnf 10114  df-mnf 10115  df-xr 10116  df-ltxr 10117  df-le 10118  df-sub 10306  df-neg 10307  df-div 10723  df-nn 11059  df-2 11117  df-3 11118  df-n0 11331  df-z 11416  df-uz 11726  df-q 11827  df-rp 11871  df-xadd 11985  df-ioo 12217  df-ico 12219  df-icc 12220  df-fz 12365  df-fzo 12505  df-fl 12633  df-seq 12842  df-exp 12901  df-hash 13158  df-cj 13883  df-re 13884  df-im 13885  df-sqrt 14019  df-abs 14020  df-clim 14263  df-rlim 14264  df-sum 14461  df-xmet 19787  df-met 19788  df-ovol 23279  df-vol 23280
This theorem is referenced by:  voliun  23368
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