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Theorem fourierdlem75 42816
Description: Given a piecewise smooth function 𝐹, the derived function 𝐻 has a limit at the lower bound of each interval of the partition 𝑄. (Contributed by Glauco Siliprandi, 11-Dec-2019.)
Hypotheses
Ref Expression
fourierdlem75.xre (𝜑𝑋 ∈ ℝ)
fourierdlem75.p 𝑃 = (𝑚 ∈ ℕ ↦ {𝑝 ∈ (ℝ ↑m (0...𝑚)) ∣ (((𝑝‘0) = (-π + 𝑋) ∧ (𝑝𝑚) = (π + 𝑋)) ∧ ∀𝑖 ∈ (0..^𝑚)(𝑝𝑖) < (𝑝‘(𝑖 + 1)))})
fourierdlem75.f (𝜑𝐹:ℝ⟶ℝ)
fourierdlem75.x (𝜑𝑋 ∈ ran 𝑉)
fourierdlem75.y (𝜑𝑌 ∈ ((𝐹 ↾ (𝑋(,)+∞)) lim 𝑋))
fourierdlem75.w (𝜑𝑊 ∈ ℝ)
fourierdlem75.h 𝐻 = (𝑠 ∈ (-π[,]π) ↦ if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠)))
fourierdlem75.m (𝜑𝑀 ∈ ℕ)
fourierdlem75.v (𝜑𝑉 ∈ (𝑃𝑀))
fourierdlem75.r ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑅 ∈ ((𝐹 ↾ ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))) lim (𝑉𝑖)))
fourierdlem75.q 𝑄 = (𝑖 ∈ (0...𝑀) ↦ ((𝑉𝑖) − 𝑋))
fourierdlem75.o 𝑂 = (𝑚 ∈ ℕ ↦ {𝑝 ∈ (ℝ ↑m (0...𝑚)) ∣ (((𝑝‘0) = -π ∧ (𝑝𝑚) = π) ∧ ∀𝑖 ∈ (0..^𝑚)(𝑝𝑖) < (𝑝‘(𝑖 + 1)))})
fourierdlem75.g 𝐺 = (ℝ D 𝐹)
fourierdlem75.gcn ((𝜑𝑖 ∈ (0..^𝑀)) → (𝐺 ↾ ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))):((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))⟶ℂ)
fourierdlem75.e (𝜑𝐸 ∈ ((𝐺 ↾ (𝑋(,)+∞)) lim 𝑋))
fourierdlem75.a 𝐴 = if((𝑉𝑖) = 𝑋, 𝐸, ((𝑅 − if((𝑉𝑖) < 𝑋, 𝑊, 𝑌)) / (𝑄𝑖)))
Assertion
Ref Expression
fourierdlem75 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝐴 ∈ ((𝐻 ↾ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) lim (𝑄𝑖)))
Distinct variable groups:   𝐸,𝑠   𝐹,𝑠   𝐻,𝑠   𝑖,𝑀,𝑚,𝑝   𝑀,𝑠,𝑖   𝑄,𝑖,𝑝   𝑄,𝑠   𝑅,𝑠   𝑖,𝑉,𝑝   𝑉,𝑠   𝑊,𝑠   𝑖,𝑋,𝑚,𝑝   𝑋,𝑠   𝑌,𝑠   𝜑,𝑖,𝑠
Allowed substitution hints:   𝜑(𝑚,𝑝)   𝐴(𝑖,𝑚,𝑠,𝑝)   𝑃(𝑖,𝑚,𝑠,𝑝)   𝑄(𝑚)   𝑅(𝑖,𝑚,𝑝)   𝐸(𝑖,𝑚,𝑝)   𝐹(𝑖,𝑚,𝑝)   𝐺(𝑖,𝑚,𝑠,𝑝)   𝐻(𝑖,𝑚,𝑝)   𝑂(𝑖,𝑚,𝑠,𝑝)   𝑉(𝑚)   𝑊(𝑖,𝑚,𝑝)   𝑌(𝑖,𝑚,𝑝)

Proof of Theorem fourierdlem75
Dummy variables 𝑥 𝑗 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 fourierdlem75.xre . . . . 5 (𝜑𝑋 ∈ ℝ)
21ad2antrr 725 . . . 4 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → 𝑋 ∈ ℝ)
3 fourierdlem75.v . . . . . . . . . 10 (𝜑𝑉 ∈ (𝑃𝑀))
4 fourierdlem75.m . . . . . . . . . . 11 (𝜑𝑀 ∈ ℕ)
5 fourierdlem75.p . . . . . . . . . . . 12 𝑃 = (𝑚 ∈ ℕ ↦ {𝑝 ∈ (ℝ ↑m (0...𝑚)) ∣ (((𝑝‘0) = (-π + 𝑋) ∧ (𝑝𝑚) = (π + 𝑋)) ∧ ∀𝑖 ∈ (0..^𝑚)(𝑝𝑖) < (𝑝‘(𝑖 + 1)))})
65fourierdlem2 42744 . . . . . . . . . . 11 (𝑀 ∈ ℕ → (𝑉 ∈ (𝑃𝑀) ↔ (𝑉 ∈ (ℝ ↑m (0...𝑀)) ∧ (((𝑉‘0) = (-π + 𝑋) ∧ (𝑉𝑀) = (π + 𝑋)) ∧ ∀𝑖 ∈ (0..^𝑀)(𝑉𝑖) < (𝑉‘(𝑖 + 1))))))
74, 6syl 17 . . . . . . . . . 10 (𝜑 → (𝑉 ∈ (𝑃𝑀) ↔ (𝑉 ∈ (ℝ ↑m (0...𝑀)) ∧ (((𝑉‘0) = (-π + 𝑋) ∧ (𝑉𝑀) = (π + 𝑋)) ∧ ∀𝑖 ∈ (0..^𝑀)(𝑉𝑖) < (𝑉‘(𝑖 + 1))))))
83, 7mpbid 235 . . . . . . . . 9 (𝜑 → (𝑉 ∈ (ℝ ↑m (0...𝑀)) ∧ (((𝑉‘0) = (-π + 𝑋) ∧ (𝑉𝑀) = (π + 𝑋)) ∧ ∀𝑖 ∈ (0..^𝑀)(𝑉𝑖) < (𝑉‘(𝑖 + 1)))))
98simpld 498 . . . . . . . 8 (𝜑𝑉 ∈ (ℝ ↑m (0...𝑀)))
10 elmapi 8415 . . . . . . . 8 (𝑉 ∈ (ℝ ↑m (0...𝑀)) → 𝑉:(0...𝑀)⟶ℝ)
119, 10syl 17 . . . . . . 7 (𝜑𝑉:(0...𝑀)⟶ℝ)
1211adantr 484 . . . . . 6 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑉:(0...𝑀)⟶ℝ)
13 fzofzp1 13133 . . . . . . 7 (𝑖 ∈ (0..^𝑀) → (𝑖 + 1) ∈ (0...𝑀))
1413adantl 485 . . . . . 6 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑖 + 1) ∈ (0...𝑀))
1512, 14ffvelrnd 6833 . . . . 5 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑉‘(𝑖 + 1)) ∈ ℝ)
1615adantr 484 . . . 4 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → (𝑉‘(𝑖 + 1)) ∈ ℝ)
17 eqcom 2808 . . . . . . 7 ((𝑉𝑖) = 𝑋𝑋 = (𝑉𝑖))
1817biimpi 219 . . . . . 6 ((𝑉𝑖) = 𝑋𝑋 = (𝑉𝑖))
1918adantl 485 . . . . 5 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → 𝑋 = (𝑉𝑖))
208simprrd 773 . . . . . . 7 (𝜑 → ∀𝑖 ∈ (0..^𝑀)(𝑉𝑖) < (𝑉‘(𝑖 + 1)))
2120r19.21bi 3176 . . . . . 6 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑉𝑖) < (𝑉‘(𝑖 + 1)))
2221adantr 484 . . . . 5 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → (𝑉𝑖) < (𝑉‘(𝑖 + 1)))
2319, 22eqbrtrd 5055 . . . 4 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → 𝑋 < (𝑉‘(𝑖 + 1)))
24 fourierdlem75.f . . . . . . 7 (𝜑𝐹:ℝ⟶ℝ)
2524adantr 484 . . . . . 6 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝐹:ℝ⟶ℝ)
26 ioossre 12790 . . . . . . 7 (𝑋(,)(𝑉‘(𝑖 + 1))) ⊆ ℝ
2726a1i 11 . . . . . 6 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑋(,)(𝑉‘(𝑖 + 1))) ⊆ ℝ)
2825, 27fssresd 6523 . . . . 5 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))):(𝑋(,)(𝑉‘(𝑖 + 1)))⟶ℝ)
2928adantr 484 . . . 4 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → (𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))):(𝑋(,)(𝑉‘(𝑖 + 1)))⟶ℝ)
30 limcresi 24492 . . . . . . . 8 ((𝐹 ↾ (𝑋(,)+∞)) lim 𝑋) ⊆ (((𝐹 ↾ (𝑋(,)+∞)) ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))) lim 𝑋)
31 fourierdlem75.y . . . . . . . 8 (𝜑𝑌 ∈ ((𝐹 ↾ (𝑋(,)+∞)) lim 𝑋))
3230, 31sseldi 3916 . . . . . . 7 (𝜑𝑌 ∈ (((𝐹 ↾ (𝑋(,)+∞)) ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))) lim 𝑋))
3332adantr 484 . . . . . 6 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑌 ∈ (((𝐹 ↾ (𝑋(,)+∞)) ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))) lim 𝑋))
34 pnfxr 10688 . . . . . . . . . 10 +∞ ∈ ℝ*
3534a1i 11 . . . . . . . . 9 ((𝜑𝑖 ∈ (0..^𝑀)) → +∞ ∈ ℝ*)
3615rexrd 10684 . . . . . . . . . 10 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑉‘(𝑖 + 1)) ∈ ℝ*)
3715ltpnfd 12508 . . . . . . . . . 10 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑉‘(𝑖 + 1)) < +∞)
3836, 35, 37xrltled 12535 . . . . . . . . 9 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑉‘(𝑖 + 1)) ≤ +∞)
39 iooss2 12766 . . . . . . . . 9 ((+∞ ∈ ℝ* ∧ (𝑉‘(𝑖 + 1)) ≤ +∞) → (𝑋(,)(𝑉‘(𝑖 + 1))) ⊆ (𝑋(,)+∞))
4035, 38, 39syl2anc 587 . . . . . . . 8 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑋(,)(𝑉‘(𝑖 + 1))) ⊆ (𝑋(,)+∞))
4140resabs1d 5853 . . . . . . 7 ((𝜑𝑖 ∈ (0..^𝑀)) → ((𝐹 ↾ (𝑋(,)+∞)) ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))) = (𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))))
4241oveq1d 7154 . . . . . 6 ((𝜑𝑖 ∈ (0..^𝑀)) → (((𝐹 ↾ (𝑋(,)+∞)) ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))) lim 𝑋) = ((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))) lim 𝑋))
4333, 42eleqtrd 2895 . . . . 5 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑌 ∈ ((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))) lim 𝑋))
4443adantr 484 . . . 4 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → 𝑌 ∈ ((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))) lim 𝑋))
45 eqid 2801 . . . 4 (ℝ D (𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))) = (ℝ D (𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))))
46 ax-resscn 10587 . . . . . . . . . . 11 ℝ ⊆ ℂ
4746a1i 11 . . . . . . . . . 10 (𝜑 → ℝ ⊆ ℂ)
4824, 47fssd 6506 . . . . . . . . . 10 (𝜑𝐹:ℝ⟶ℂ)
49 ssid 3940 . . . . . . . . . . 11 ℝ ⊆ ℝ
5049a1i 11 . . . . . . . . . 10 (𝜑 → ℝ ⊆ ℝ)
5126a1i 11 . . . . . . . . . 10 (𝜑 → (𝑋(,)(𝑉‘(𝑖 + 1))) ⊆ ℝ)
52 eqid 2801 . . . . . . . . . . 11 (TopOpen‘ℂfld) = (TopOpen‘ℂfld)
5352tgioo2 23412 . . . . . . . . . . 11 (topGen‘ran (,)) = ((TopOpen‘ℂfld) ↾t ℝ)
5452, 53dvres 24518 . . . . . . . . . 10 (((ℝ ⊆ ℂ ∧ 𝐹:ℝ⟶ℂ) ∧ (ℝ ⊆ ℝ ∧ (𝑋(,)(𝑉‘(𝑖 + 1))) ⊆ ℝ)) → (ℝ D (𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))) = ((ℝ D 𝐹) ↾ ((int‘(topGen‘ran (,)))‘(𝑋(,)(𝑉‘(𝑖 + 1))))))
5547, 48, 50, 51, 54syl22anc 837 . . . . . . . . 9 (𝜑 → (ℝ D (𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))) = ((ℝ D 𝐹) ↾ ((int‘(topGen‘ran (,)))‘(𝑋(,)(𝑉‘(𝑖 + 1))))))
56 fourierdlem75.g . . . . . . . . . . 11 𝐺 = (ℝ D 𝐹)
5756eqcomi 2810 . . . . . . . . . 10 (ℝ D 𝐹) = 𝐺
58 ioontr 42141 . . . . . . . . . 10 ((int‘(topGen‘ran (,)))‘(𝑋(,)(𝑉‘(𝑖 + 1)))) = (𝑋(,)(𝑉‘(𝑖 + 1)))
5957, 58reseq12i 5820 . . . . . . . . 9 ((ℝ D 𝐹) ↾ ((int‘(topGen‘ran (,)))‘(𝑋(,)(𝑉‘(𝑖 + 1))))) = (𝐺 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))
6055, 59eqtrdi 2852 . . . . . . . 8 (𝜑 → (ℝ D (𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))) = (𝐺 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))))
6160adantr 484 . . . . . . 7 ((𝜑 ∧ (𝑉𝑖) = 𝑋) → (ℝ D (𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))) = (𝐺 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))))
6261dmeqd 5742 . . . . . 6 ((𝜑 ∧ (𝑉𝑖) = 𝑋) → dom (ℝ D (𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))) = dom (𝐺 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))))
6362adantlr 714 . . . . 5 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → dom (ℝ D (𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))) = dom (𝐺 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))))
64 fourierdlem75.gcn . . . . . . . . 9 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝐺 ↾ ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))):((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))⟶ℂ)
6564adantr 484 . . . . . . . 8 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → (𝐺 ↾ ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))):((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))⟶ℂ)
66 oveq1 7146 . . . . . . . . . . 11 ((𝑉𝑖) = 𝑋 → ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1))) = (𝑋(,)(𝑉‘(𝑖 + 1))))
6766reseq2d 5822 . . . . . . . . . 10 ((𝑉𝑖) = 𝑋 → (𝐺 ↾ ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))) = (𝐺 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))))
6867feq1d 6476 . . . . . . . . 9 ((𝑉𝑖) = 𝑋 → ((𝐺 ↾ ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))):((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))⟶ℂ ↔ (𝐺 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))):((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))⟶ℂ))
6968adantl 485 . . . . . . . 8 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → ((𝐺 ↾ ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))):((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))⟶ℂ ↔ (𝐺 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))):((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))⟶ℂ))
7065, 69mpbid 235 . . . . . . 7 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → (𝐺 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))):((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))⟶ℂ)
7166adantl 485 . . . . . . . 8 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1))) = (𝑋(,)(𝑉‘(𝑖 + 1))))
7271feq2d 6477 . . . . . . 7 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → ((𝐺 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))):((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))⟶ℂ ↔ (𝐺 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))):(𝑋(,)(𝑉‘(𝑖 + 1)))⟶ℂ))
7370, 72mpbid 235 . . . . . 6 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → (𝐺 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))):(𝑋(,)(𝑉‘(𝑖 + 1)))⟶ℂ)
74 fdm 6499 . . . . . 6 ((𝐺 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))):(𝑋(,)(𝑉‘(𝑖 + 1)))⟶ℂ → dom (𝐺 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))) = (𝑋(,)(𝑉‘(𝑖 + 1))))
7573, 74syl 17 . . . . 5 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → dom (𝐺 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))) = (𝑋(,)(𝑉‘(𝑖 + 1))))
7663, 75eqtrd 2836 . . . 4 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → dom (ℝ D (𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))) = (𝑋(,)(𝑉‘(𝑖 + 1))))
77 limcresi 24492 . . . . . . . 8 ((𝐺 ↾ (𝑋(,)+∞)) lim 𝑋) ⊆ (((𝐺 ↾ (𝑋(,)+∞)) ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))) lim 𝑋)
78 fourierdlem75.e . . . . . . . 8 (𝜑𝐸 ∈ ((𝐺 ↾ (𝑋(,)+∞)) lim 𝑋))
7977, 78sseldi 3916 . . . . . . 7 (𝜑𝐸 ∈ (((𝐺 ↾ (𝑋(,)+∞)) ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))) lim 𝑋))
8079adantr 484 . . . . . 6 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝐸 ∈ (((𝐺 ↾ (𝑋(,)+∞)) ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))) lim 𝑋))
8140resabs1d 5853 . . . . . . . 8 ((𝜑𝑖 ∈ (0..^𝑀)) → ((𝐺 ↾ (𝑋(,)+∞)) ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))) = (𝐺 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))))
8260adantr 484 . . . . . . . 8 ((𝜑𝑖 ∈ (0..^𝑀)) → (ℝ D (𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))) = (𝐺 ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))))
8381, 82eqtr4d 2839 . . . . . . 7 ((𝜑𝑖 ∈ (0..^𝑀)) → ((𝐺 ↾ (𝑋(,)+∞)) ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))) = (ℝ D (𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))))
8483oveq1d 7154 . . . . . 6 ((𝜑𝑖 ∈ (0..^𝑀)) → (((𝐺 ↾ (𝑋(,)+∞)) ↾ (𝑋(,)(𝑉‘(𝑖 + 1)))) lim 𝑋) = ((ℝ D (𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))) lim 𝑋))
8580, 84eleqtrd 2895 . . . . 5 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝐸 ∈ ((ℝ D (𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))) lim 𝑋))
8685adantr 484 . . . 4 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → 𝐸 ∈ ((ℝ D (𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))) lim 𝑋))
87 eqid 2801 . . . 4 (𝑠 ∈ (0(,)((𝑉‘(𝑖 + 1)) − 𝑋)) ↦ ((((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑠)) − 𝑌) / 𝑠)) = (𝑠 ∈ (0(,)((𝑉‘(𝑖 + 1)) − 𝑋)) ↦ ((((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑠)) − 𝑌) / 𝑠))
88 oveq2 7147 . . . . . . 7 (𝑥 = 𝑠 → (𝑋 + 𝑥) = (𝑋 + 𝑠))
8988fveq2d 6653 . . . . . 6 (𝑥 = 𝑠 → ((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑥)) = ((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑠)))
9089oveq1d 7154 . . . . 5 (𝑥 = 𝑠 → (((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑥)) − 𝑌) = (((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑠)) − 𝑌))
9190cbvmptv 5136 . . . 4 (𝑥 ∈ (0(,)((𝑉‘(𝑖 + 1)) − 𝑋)) ↦ (((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑥)) − 𝑌)) = (𝑠 ∈ (0(,)((𝑉‘(𝑖 + 1)) − 𝑋)) ↦ (((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑠)) − 𝑌))
92 id 22 . . . . 5 (𝑥 = 𝑠𝑥 = 𝑠)
9392cbvmptv 5136 . . . 4 (𝑥 ∈ (0(,)((𝑉‘(𝑖 + 1)) − 𝑋)) ↦ 𝑥) = (𝑠 ∈ (0(,)((𝑉‘(𝑖 + 1)) − 𝑋)) ↦ 𝑠)
942, 16, 23, 29, 44, 45, 76, 86, 87, 91, 93fourierdlem61 42802 . . 3 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → 𝐸 ∈ ((𝑠 ∈ (0(,)((𝑉‘(𝑖 + 1)) − 𝑋)) ↦ ((((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑠)) − 𝑌) / 𝑠)) lim 0))
95 fourierdlem75.a . . . . 5 𝐴 = if((𝑉𝑖) = 𝑋, 𝐸, ((𝑅 − if((𝑉𝑖) < 𝑋, 𝑊, 𝑌)) / (𝑄𝑖)))
96 iftrue 4434 . . . . 5 ((𝑉𝑖) = 𝑋 → if((𝑉𝑖) = 𝑋, 𝐸, ((𝑅 − if((𝑉𝑖) < 𝑋, 𝑊, 𝑌)) / (𝑄𝑖))) = 𝐸)
9795, 96syl5eq 2848 . . . 4 ((𝑉𝑖) = 𝑋𝐴 = 𝐸)
9897adantl 485 . . 3 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → 𝐴 = 𝐸)
99 fourierdlem75.h . . . . . . 7 𝐻 = (𝑠 ∈ (-π[,]π) ↦ if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠)))
10099reseq1i 5818 . . . . . 6 (𝐻 ↾ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) = ((𝑠 ∈ (-π[,]π) ↦ if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠))) ↾ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))))
101100a1i 11 . . . . 5 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → (𝐻 ↾ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) = ((𝑠 ∈ (-π[,]π) ↦ if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠))) ↾ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))))
102 ioossicc 12815 . . . . . . . 8 ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ⊆ ((𝑄𝑖)[,](𝑄‘(𝑖 + 1)))
103 pire 25055 . . . . . . . . . . . 12 π ∈ ℝ
104103renegcli 10940 . . . . . . . . . . 11 -π ∈ ℝ
105104rexri 10692 . . . . . . . . . 10 -π ∈ ℝ*
106105a1i 11 . . . . . . . . 9 ((𝜑𝑖 ∈ (0..^𝑀)) → -π ∈ ℝ*)
107103rexri 10692 . . . . . . . . . 10 π ∈ ℝ*
108107a1i 11 . . . . . . . . 9 ((𝜑𝑖 ∈ (0..^𝑀)) → π ∈ ℝ*)
109104a1i 11 . . . . . . . . . . . 12 ((𝜑𝑖 ∈ (0...𝑀)) → -π ∈ ℝ)
110103a1i 11 . . . . . . . . . . . 12 ((𝜑𝑖 ∈ (0...𝑀)) → π ∈ ℝ)
111104a1i 11 . . . . . . . . . . . . . . . . 17 (𝜑 → -π ∈ ℝ)
112111, 1readdcld 10663 . . . . . . . . . . . . . . . 16 (𝜑 → (-π + 𝑋) ∈ ℝ)
113103a1i 11 . . . . . . . . . . . . . . . . 17 (𝜑 → π ∈ ℝ)
114113, 1readdcld 10663 . . . . . . . . . . . . . . . 16 (𝜑 → (π + 𝑋) ∈ ℝ)
115112, 114iccssred 12816 . . . . . . . . . . . . . . 15 (𝜑 → ((-π + 𝑋)[,](π + 𝑋)) ⊆ ℝ)
116115adantr 484 . . . . . . . . . . . . . 14 ((𝜑𝑖 ∈ (0...𝑀)) → ((-π + 𝑋)[,](π + 𝑋)) ⊆ ℝ)
1175, 4, 3fourierdlem15 42757 . . . . . . . . . . . . . . 15 (𝜑𝑉:(0...𝑀)⟶((-π + 𝑋)[,](π + 𝑋)))
118117ffvelrnda 6832 . . . . . . . . . . . . . 14 ((𝜑𝑖 ∈ (0...𝑀)) → (𝑉𝑖) ∈ ((-π + 𝑋)[,](π + 𝑋)))
119116, 118sseldd 3919 . . . . . . . . . . . . 13 ((𝜑𝑖 ∈ (0...𝑀)) → (𝑉𝑖) ∈ ℝ)
1201adantr 484 . . . . . . . . . . . . 13 ((𝜑𝑖 ∈ (0...𝑀)) → 𝑋 ∈ ℝ)
121119, 120resubcld 11061 . . . . . . . . . . . 12 ((𝜑𝑖 ∈ (0...𝑀)) → ((𝑉𝑖) − 𝑋) ∈ ℝ)
122111recnd 10662 . . . . . . . . . . . . . . . 16 (𝜑 → -π ∈ ℂ)
1231recnd 10662 . . . . . . . . . . . . . . . 16 (𝜑𝑋 ∈ ℂ)
124122, 123pncand 10991 . . . . . . . . . . . . . . 15 (𝜑 → ((-π + 𝑋) − 𝑋) = -π)
125124eqcomd 2807 . . . . . . . . . . . . . 14 (𝜑 → -π = ((-π + 𝑋) − 𝑋))
126125adantr 484 . . . . . . . . . . . . 13 ((𝜑𝑖 ∈ (0...𝑀)) → -π = ((-π + 𝑋) − 𝑋))
127112adantr 484 . . . . . . . . . . . . . 14 ((𝜑𝑖 ∈ (0...𝑀)) → (-π + 𝑋) ∈ ℝ)
128114adantr 484 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0...𝑀)) → (π + 𝑋) ∈ ℝ)
129 elicc2 12794 . . . . . . . . . . . . . . . . 17 (((-π + 𝑋) ∈ ℝ ∧ (π + 𝑋) ∈ ℝ) → ((𝑉𝑖) ∈ ((-π + 𝑋)[,](π + 𝑋)) ↔ ((𝑉𝑖) ∈ ℝ ∧ (-π + 𝑋) ≤ (𝑉𝑖) ∧ (𝑉𝑖) ≤ (π + 𝑋))))
130127, 128, 129syl2anc 587 . . . . . . . . . . . . . . . 16 ((𝜑𝑖 ∈ (0...𝑀)) → ((𝑉𝑖) ∈ ((-π + 𝑋)[,](π + 𝑋)) ↔ ((𝑉𝑖) ∈ ℝ ∧ (-π + 𝑋) ≤ (𝑉𝑖) ∧ (𝑉𝑖) ≤ (π + 𝑋))))
131118, 130mpbid 235 . . . . . . . . . . . . . . 15 ((𝜑𝑖 ∈ (0...𝑀)) → ((𝑉𝑖) ∈ ℝ ∧ (-π + 𝑋) ≤ (𝑉𝑖) ∧ (𝑉𝑖) ≤ (π + 𝑋)))
132131simp2d 1140 . . . . . . . . . . . . . 14 ((𝜑𝑖 ∈ (0...𝑀)) → (-π + 𝑋) ≤ (𝑉𝑖))
133127, 119, 120, 132lesub1dd 11249 . . . . . . . . . . . . 13 ((𝜑𝑖 ∈ (0...𝑀)) → ((-π + 𝑋) − 𝑋) ≤ ((𝑉𝑖) − 𝑋))
134126, 133eqbrtrd 5055 . . . . . . . . . . . 12 ((𝜑𝑖 ∈ (0...𝑀)) → -π ≤ ((𝑉𝑖) − 𝑋))
135131simp3d 1141 . . . . . . . . . . . . . 14 ((𝜑𝑖 ∈ (0...𝑀)) → (𝑉𝑖) ≤ (π + 𝑋))
136119, 128, 120, 135lesub1dd 11249 . . . . . . . . . . . . 13 ((𝜑𝑖 ∈ (0...𝑀)) → ((𝑉𝑖) − 𝑋) ≤ ((π + 𝑋) − 𝑋))
137110recnd 10662 . . . . . . . . . . . . . 14 ((𝜑𝑖 ∈ (0...𝑀)) → π ∈ ℂ)
138123adantr 484 . . . . . . . . . . . . . 14 ((𝜑𝑖 ∈ (0...𝑀)) → 𝑋 ∈ ℂ)
139137, 138pncand 10991 . . . . . . . . . . . . 13 ((𝜑𝑖 ∈ (0...𝑀)) → ((π + 𝑋) − 𝑋) = π)
140136, 139breqtrd 5059 . . . . . . . . . . . 12 ((𝜑𝑖 ∈ (0...𝑀)) → ((𝑉𝑖) − 𝑋) ≤ π)
141109, 110, 121, 134, 140eliccd 42134 . . . . . . . . . . 11 ((𝜑𝑖 ∈ (0...𝑀)) → ((𝑉𝑖) − 𝑋) ∈ (-π[,]π))
142 fourierdlem75.q . . . . . . . . . . 11 𝑄 = (𝑖 ∈ (0...𝑀) ↦ ((𝑉𝑖) − 𝑋))
143141, 142fmptd 6859 . . . . . . . . . 10 (𝜑𝑄:(0...𝑀)⟶(-π[,]π))
144143adantr 484 . . . . . . . . 9 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑄:(0...𝑀)⟶(-π[,]π))
145 simpr 488 . . . . . . . . 9 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑖 ∈ (0..^𝑀))
146106, 108, 144, 145fourierdlem8 42750 . . . . . . . 8 ((𝜑𝑖 ∈ (0..^𝑀)) → ((𝑄𝑖)[,](𝑄‘(𝑖 + 1))) ⊆ (-π[,]π))
147102, 146sstrid 3929 . . . . . . 7 ((𝜑𝑖 ∈ (0..^𝑀)) → ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ⊆ (-π[,]π))
148147resmptd 5879 . . . . . 6 ((𝜑𝑖 ∈ (0..^𝑀)) → ((𝑠 ∈ (-π[,]π) ↦ if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠))) ↾ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) = (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠))))
149148adantr 484 . . . . 5 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → ((𝑠 ∈ (-π[,]π) ↦ if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠))) ↾ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) = (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠))))
150 elfzofz 13052 . . . . . . . 8 (𝑖 ∈ (0..^𝑀) → 𝑖 ∈ (0...𝑀))
151 simpr 488 . . . . . . . . . . 11 ((𝜑𝑖 ∈ (0...𝑀)) → 𝑖 ∈ (0...𝑀))
152142fvmpt2 6760 . . . . . . . . . . 11 ((𝑖 ∈ (0...𝑀) ∧ ((𝑉𝑖) − 𝑋) ∈ (-π[,]π)) → (𝑄𝑖) = ((𝑉𝑖) − 𝑋))
153151, 141, 152syl2anc 587 . . . . . . . . . 10 ((𝜑𝑖 ∈ (0...𝑀)) → (𝑄𝑖) = ((𝑉𝑖) − 𝑋))
154153adantr 484 . . . . . . . . 9 (((𝜑𝑖 ∈ (0...𝑀)) ∧ (𝑉𝑖) = 𝑋) → (𝑄𝑖) = ((𝑉𝑖) − 𝑋))
155 oveq1 7146 . . . . . . . . . 10 ((𝑉𝑖) = 𝑋 → ((𝑉𝑖) − 𝑋) = (𝑋𝑋))
156155adantl 485 . . . . . . . . 9 (((𝜑𝑖 ∈ (0...𝑀)) ∧ (𝑉𝑖) = 𝑋) → ((𝑉𝑖) − 𝑋) = (𝑋𝑋))
157123ad2antrr 725 . . . . . . . . . 10 (((𝜑𝑖 ∈ (0...𝑀)) ∧ (𝑉𝑖) = 𝑋) → 𝑋 ∈ ℂ)
158157subidd 10978 . . . . . . . . 9 (((𝜑𝑖 ∈ (0...𝑀)) ∧ (𝑉𝑖) = 𝑋) → (𝑋𝑋) = 0)
159154, 156, 1583eqtrd 2840 . . . . . . . 8 (((𝜑𝑖 ∈ (0...𝑀)) ∧ (𝑉𝑖) = 𝑋) → (𝑄𝑖) = 0)
160150, 159sylanl2 680 . . . . . . 7 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → (𝑄𝑖) = 0)
161 fveq2 6649 . . . . . . . . . . . . 13 (𝑖 = 𝑗 → (𝑉𝑖) = (𝑉𝑗))
162161oveq1d 7154 . . . . . . . . . . . 12 (𝑖 = 𝑗 → ((𝑉𝑖) − 𝑋) = ((𝑉𝑗) − 𝑋))
163162cbvmptv 5136 . . . . . . . . . . 11 (𝑖 ∈ (0...𝑀) ↦ ((𝑉𝑖) − 𝑋)) = (𝑗 ∈ (0...𝑀) ↦ ((𝑉𝑗) − 𝑋))
164142, 163eqtri 2824 . . . . . . . . . 10 𝑄 = (𝑗 ∈ (0...𝑀) ↦ ((𝑉𝑗) − 𝑋))
165164a1i 11 . . . . . . . . 9 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑄 = (𝑗 ∈ (0...𝑀) ↦ ((𝑉𝑗) − 𝑋)))
166 fveq2 6649 . . . . . . . . . . 11 (𝑗 = (𝑖 + 1) → (𝑉𝑗) = (𝑉‘(𝑖 + 1)))
167166oveq1d 7154 . . . . . . . . . 10 (𝑗 = (𝑖 + 1) → ((𝑉𝑗) − 𝑋) = ((𝑉‘(𝑖 + 1)) − 𝑋))
168167adantl 485 . . . . . . . . 9 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑗 = (𝑖 + 1)) → ((𝑉𝑗) − 𝑋) = ((𝑉‘(𝑖 + 1)) − 𝑋))
1691adantr 484 . . . . . . . . . 10 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑋 ∈ ℝ)
17015, 169resubcld 11061 . . . . . . . . 9 ((𝜑𝑖 ∈ (0..^𝑀)) → ((𝑉‘(𝑖 + 1)) − 𝑋) ∈ ℝ)
171165, 168, 14, 170fvmptd 6756 . . . . . . . 8 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑄‘(𝑖 + 1)) = ((𝑉‘(𝑖 + 1)) − 𝑋))
172171adantr 484 . . . . . . 7 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → (𝑄‘(𝑖 + 1)) = ((𝑉‘(𝑖 + 1)) − 𝑋))
173160, 172oveq12d 7157 . . . . . 6 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) = (0(,)((𝑉‘(𝑖 + 1)) − 𝑋)))
174 simplr 768 . . . . . . . . . 10 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) ∧ 𝑠 = 0) → 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))))
175 fourierdlem75.o . . . . . . . . . . . . 13 𝑂 = (𝑚 ∈ ℕ ↦ {𝑝 ∈ (ℝ ↑m (0...𝑚)) ∣ (((𝑝‘0) = -π ∧ (𝑝𝑚) = π) ∧ ∀𝑖 ∈ (0..^𝑚)(𝑝𝑖) < (𝑝‘(𝑖 + 1)))})
1764adantr 484 . . . . . . . . . . . . 13 ((𝜑𝑠 = 0) → 𝑀 ∈ ℕ)
177111, 113, 1, 5, 175, 4, 3, 142fourierdlem14 42756 . . . . . . . . . . . . . 14 (𝜑𝑄 ∈ (𝑂𝑀))
178177adantr 484 . . . . . . . . . . . . 13 ((𝜑𝑠 = 0) → 𝑄 ∈ (𝑂𝑀))
179 simpr 488 . . . . . . . . . . . . . 14 ((𝜑𝑠 = 0) → 𝑠 = 0)
180 fourierdlem75.x . . . . . . . . . . . . . . . . . 18 (𝜑𝑋 ∈ ran 𝑉)
181 ffn 6491 . . . . . . . . . . . . . . . . . . 19 (𝑉:(0...𝑀)⟶((-π + 𝑋)[,](π + 𝑋)) → 𝑉 Fn (0...𝑀))
182 fvelrnb 6705 . . . . . . . . . . . . . . . . . . 19 (𝑉 Fn (0...𝑀) → (𝑋 ∈ ran 𝑉 ↔ ∃𝑖 ∈ (0...𝑀)(𝑉𝑖) = 𝑋))
183117, 181, 1823syl 18 . . . . . . . . . . . . . . . . . 18 (𝜑 → (𝑋 ∈ ran 𝑉 ↔ ∃𝑖 ∈ (0...𝑀)(𝑉𝑖) = 𝑋))
184180, 183mpbid 235 . . . . . . . . . . . . . . . . 17 (𝜑 → ∃𝑖 ∈ (0...𝑀)(𝑉𝑖) = 𝑋)
185159ex 416 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖 ∈ (0...𝑀)) → ((𝑉𝑖) = 𝑋 → (𝑄𝑖) = 0))
186185reximdva 3236 . . . . . . . . . . . . . . . . 17 (𝜑 → (∃𝑖 ∈ (0...𝑀)(𝑉𝑖) = 𝑋 → ∃𝑖 ∈ (0...𝑀)(𝑄𝑖) = 0))
187184, 186mpd 15 . . . . . . . . . . . . . . . 16 (𝜑 → ∃𝑖 ∈ (0...𝑀)(𝑄𝑖) = 0)
188121, 142fmptd 6859 . . . . . . . . . . . . . . . . 17 (𝜑𝑄:(0...𝑀)⟶ℝ)
189 ffn 6491 . . . . . . . . . . . . . . . . 17 (𝑄:(0...𝑀)⟶ℝ → 𝑄 Fn (0...𝑀))
190 fvelrnb 6705 . . . . . . . . . . . . . . . . 17 (𝑄 Fn (0...𝑀) → (0 ∈ ran 𝑄 ↔ ∃𝑖 ∈ (0...𝑀)(𝑄𝑖) = 0))
191188, 189, 1903syl 18 . . . . . . . . . . . . . . . 16 (𝜑 → (0 ∈ ran 𝑄 ↔ ∃𝑖 ∈ (0...𝑀)(𝑄𝑖) = 0))
192187, 191mpbird 260 . . . . . . . . . . . . . . 15 (𝜑 → 0 ∈ ran 𝑄)
193192adantr 484 . . . . . . . . . . . . . 14 ((𝜑𝑠 = 0) → 0 ∈ ran 𝑄)
194179, 193eqeltrd 2893 . . . . . . . . . . . . 13 ((𝜑𝑠 = 0) → 𝑠 ∈ ran 𝑄)
195175, 176, 178, 194fourierdlem12 42754 . . . . . . . . . . . 12 (((𝜑𝑠 = 0) ∧ 𝑖 ∈ (0..^𝑀)) → ¬ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))))
196195an32s 651 . . . . . . . . . . 11 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 = 0) → ¬ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))))
197196adantlr 714 . . . . . . . . . 10 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) ∧ 𝑠 = 0) → ¬ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))))
198174, 197pm2.65da 816 . . . . . . . . 9 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → ¬ 𝑠 = 0)
199198adantlr 714 . . . . . . . 8 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → ¬ 𝑠 = 0)
200199iffalsed 4439 . . . . . . 7 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠)) = (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠))
201160eqcomd 2807 . . . . . . . . . . . 12 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → 0 = (𝑄𝑖))
202201adantr 484 . . . . . . . . . . 11 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 0 = (𝑄𝑖))
203 elioo3g 12759 . . . . . . . . . . . . . 14 (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↔ (((𝑄𝑖) ∈ ℝ* ∧ (𝑄‘(𝑖 + 1)) ∈ ℝ*𝑠 ∈ ℝ*) ∧ ((𝑄𝑖) < 𝑠𝑠 < (𝑄‘(𝑖 + 1)))))
204203biimpi 219 . . . . . . . . . . . . 13 (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) → (((𝑄𝑖) ∈ ℝ* ∧ (𝑄‘(𝑖 + 1)) ∈ ℝ*𝑠 ∈ ℝ*) ∧ ((𝑄𝑖) < 𝑠𝑠 < (𝑄‘(𝑖 + 1)))))
205204simprld 771 . . . . . . . . . . . 12 (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) → (𝑄𝑖) < 𝑠)
206205adantl 485 . . . . . . . . . . 11 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑄𝑖) < 𝑠)
207202, 206eqbrtrd 5055 . . . . . . . . . 10 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 0 < 𝑠)
208207iftrued 4436 . . . . . . . . 9 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → if(0 < 𝑠, 𝑌, 𝑊) = 𝑌)
209208oveq2d 7155 . . . . . . . 8 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → ((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) = ((𝐹‘(𝑋 + 𝑠)) − 𝑌))
210209oveq1d 7154 . . . . . . 7 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠) = (((𝐹‘(𝑋 + 𝑠)) − 𝑌) / 𝑠))
2111rexrd 10684 . . . . . . . . . . . . 13 (𝜑𝑋 ∈ ℝ*)
212211ad3antrrr 729 . . . . . . . . . . . 12 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑋 ∈ ℝ*)
21336ad2antrr 725 . . . . . . . . . . . 12 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑉‘(𝑖 + 1)) ∈ ℝ*)
214169ad2antrr 725 . . . . . . . . . . . . 13 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑋 ∈ ℝ)
215 elioore 12760 . . . . . . . . . . . . . 14 (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) → 𝑠 ∈ ℝ)
216215adantl 485 . . . . . . . . . . . . 13 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑠 ∈ ℝ)
217214, 216readdcld 10663 . . . . . . . . . . . 12 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑋 + 𝑠) ∈ ℝ)
218216, 207elrpd 12420 . . . . . . . . . . . . 13 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑠 ∈ ℝ+)
219214, 218ltaddrpd 12456 . . . . . . . . . . . 12 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑋 < (𝑋 + 𝑠))
220215adantl 485 . . . . . . . . . . . . . . 15 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑠 ∈ ℝ)
221188adantr 484 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑄:(0...𝑀)⟶ℝ)
222221, 14ffvelrnd 6833 . . . . . . . . . . . . . . . 16 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑄‘(𝑖 + 1)) ∈ ℝ)
223222adantr 484 . . . . . . . . . . . . . . 15 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑄‘(𝑖 + 1)) ∈ ℝ)
2241ad2antrr 725 . . . . . . . . . . . . . . 15 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑋 ∈ ℝ)
225204simprrd 773 . . . . . . . . . . . . . . . 16 (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) → 𝑠 < (𝑄‘(𝑖 + 1)))
226225adantl 485 . . . . . . . . . . . . . . 15 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑠 < (𝑄‘(𝑖 + 1)))
227220, 223, 224, 226ltadd2dd 10792 . . . . . . . . . . . . . 14 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑋 + 𝑠) < (𝑋 + (𝑄‘(𝑖 + 1))))
228171oveq2d 7155 . . . . . . . . . . . . . . . 16 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑋 + (𝑄‘(𝑖 + 1))) = (𝑋 + ((𝑉‘(𝑖 + 1)) − 𝑋)))
229123adantr 484 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑋 ∈ ℂ)
23015recnd 10662 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑉‘(𝑖 + 1)) ∈ ℂ)
231229, 230pncan3d 10993 . . . . . . . . . . . . . . . 16 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑋 + ((𝑉‘(𝑖 + 1)) − 𝑋)) = (𝑉‘(𝑖 + 1)))
232228, 231eqtrd 2836 . . . . . . . . . . . . . . 15 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑋 + (𝑄‘(𝑖 + 1))) = (𝑉‘(𝑖 + 1)))
233232adantr 484 . . . . . . . . . . . . . 14 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑋 + (𝑄‘(𝑖 + 1))) = (𝑉‘(𝑖 + 1)))
234227, 233breqtrd 5059 . . . . . . . . . . . . 13 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑋 + 𝑠) < (𝑉‘(𝑖 + 1)))
235234adantlr 714 . . . . . . . . . . . 12 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑋 + 𝑠) < (𝑉‘(𝑖 + 1)))
236212, 213, 217, 219, 235eliood 42128 . . . . . . . . . . 11 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑋 + 𝑠) ∈ (𝑋(,)(𝑉‘(𝑖 + 1))))
237 fvres 6668 . . . . . . . . . . 11 ((𝑋 + 𝑠) ∈ (𝑋(,)(𝑉‘(𝑖 + 1))) → ((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑠)) = (𝐹‘(𝑋 + 𝑠)))
238236, 237syl 17 . . . . . . . . . 10 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → ((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑠)) = (𝐹‘(𝑋 + 𝑠)))
239238eqcomd 2807 . . . . . . . . 9 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝐹‘(𝑋 + 𝑠)) = ((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑠)))
240239oveq1d 7154 . . . . . . . 8 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → ((𝐹‘(𝑋 + 𝑠)) − 𝑌) = (((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑠)) − 𝑌))
241240oveq1d 7154 . . . . . . 7 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (((𝐹‘(𝑋 + 𝑠)) − 𝑌) / 𝑠) = ((((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑠)) − 𝑌) / 𝑠))
242200, 210, 2413eqtrd 2840 . . . . . 6 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠)) = ((((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑠)) − 𝑌) / 𝑠))
243173, 242mpteq12dva 5117 . . . . 5 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠))) = (𝑠 ∈ (0(,)((𝑉‘(𝑖 + 1)) − 𝑋)) ↦ ((((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑠)) − 𝑌) / 𝑠)))
244101, 149, 2433eqtrd 2840 . . . 4 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → (𝐻 ↾ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) = (𝑠 ∈ (0(,)((𝑉‘(𝑖 + 1)) − 𝑋)) ↦ ((((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑠)) − 𝑌) / 𝑠)))
245244, 160oveq12d 7157 . . 3 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → ((𝐻 ↾ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) lim (𝑄𝑖)) = ((𝑠 ∈ (0(,)((𝑉‘(𝑖 + 1)) − 𝑋)) ↦ ((((𝐹 ↾ (𝑋(,)(𝑉‘(𝑖 + 1))))‘(𝑋 + 𝑠)) − 𝑌) / 𝑠)) lim 0))
24694, 98, 2453eltr4d 2908 . 2 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) = 𝑋) → 𝐴 ∈ ((𝐻 ↾ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) lim (𝑄𝑖)))
247 eqid 2801 . . . . 5 (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊))) = (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)))
248 eqid 2801 . . . . 5 (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ 𝑠) = (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ 𝑠)
249 eqid 2801 . . . . 5 (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠)) = (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠))
25024adantr 484 . . . . . . . . . 10 ((𝜑𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝐹:ℝ⟶ℝ)
2511adantr 484 . . . . . . . . . . 11 ((𝜑𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑋 ∈ ℝ)
252215adantl 485 . . . . . . . . . . 11 ((𝜑𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑠 ∈ ℝ)
253251, 252readdcld 10663 . . . . . . . . . 10 ((𝜑𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑋 + 𝑠) ∈ ℝ)
254250, 253ffvelrnd 6833 . . . . . . . . 9 ((𝜑𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝐹‘(𝑋 + 𝑠)) ∈ ℝ)
255254recnd 10662 . . . . . . . 8 ((𝜑𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝐹‘(𝑋 + 𝑠)) ∈ ℂ)
256255adantlr 714 . . . . . . 7 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝐹‘(𝑋 + 𝑠)) ∈ ℂ)
2572563adantl3 1165 . . . . . 6 (((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝐹‘(𝑋 + 𝑠)) ∈ ℂ)
258 limccl 24482 . . . . . . . . . 10 ((𝐹 ↾ (𝑋(,)+∞)) lim 𝑋) ⊆ ℂ
259258, 31sseldi 3916 . . . . . . . . 9 (𝜑𝑌 ∈ ℂ)
260 fourierdlem75.w . . . . . . . . . 10 (𝜑𝑊 ∈ ℝ)
261260recnd 10662 . . . . . . . . 9 (𝜑𝑊 ∈ ℂ)
262259, 261ifcld 4473 . . . . . . . 8 (𝜑 → if(0 < 𝑠, 𝑌, 𝑊) ∈ ℂ)
263262adantr 484 . . . . . . 7 ((𝜑𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → if(0 < 𝑠, 𝑌, 𝑊) ∈ ℂ)
2642633ad2antl1 1182 . . . . . 6 (((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → if(0 < 𝑠, 𝑌, 𝑊) ∈ ℂ)
265257, 264subcld 10990 . . . . 5 (((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → ((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) ∈ ℂ)
266215recnd 10662 . . . . . . 7 (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) → 𝑠 ∈ ℂ)
267266adantl 485 . . . . . 6 (((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑠 ∈ ℂ)
268 velsn 4544 . . . . . . . 8 (𝑠 ∈ {0} ↔ 𝑠 = 0)
269198, 268sylnibr 332 . . . . . . 7 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → ¬ 𝑠 ∈ {0})
2702693adantl3 1165 . . . . . 6 (((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → ¬ 𝑠 ∈ {0})
271267, 270eldifd 3895 . . . . 5 (((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑠 ∈ (ℂ ∖ {0}))
272 eqid 2801 . . . . . . . . . 10 (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ (𝐹‘(𝑋 + 𝑠))) = (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ (𝐹‘(𝑋 + 𝑠)))
273 eqid 2801 . . . . . . . . . 10 (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ 𝑊) = (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ 𝑊)
274 eqid 2801 . . . . . . . . . 10 (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − 𝑊)) = (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − 𝑊))
275261ad2antrr 725 . . . . . . . . . 10 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑊 ∈ ℂ)
276 ioossre 12790 . . . . . . . . . . . 12 ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ⊆ ℝ
277276a1i 11 . . . . . . . . . . 11 ((𝜑𝑖 ∈ (0..^𝑀)) → ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ⊆ ℝ)
278150, 119sylan2 595 . . . . . . . . . . . . . 14 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑉𝑖) ∈ ℝ)
279278rexrd 10684 . . . . . . . . . . . . 13 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑉𝑖) ∈ ℝ*)
280279adantr 484 . . . . . . . . . . . 12 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑉𝑖) ∈ ℝ*)
28136adantr 484 . . . . . . . . . . . 12 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑉‘(𝑖 + 1)) ∈ ℝ*)
282253adantlr 714 . . . . . . . . . . . 12 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑋 + 𝑠) ∈ ℝ)
283 iccssre 12811 . . . . . . . . . . . . . . . . . . 19 ((-π ∈ ℝ ∧ π ∈ ℝ) → (-π[,]π) ⊆ ℝ)
284104, 103, 283mp2an 691 . . . . . . . . . . . . . . . . . 18 (-π[,]π) ⊆ ℝ
285284, 46sstri 3927 . . . . . . . . . . . . . . . . 17 (-π[,]π) ⊆ ℂ
286153, 141eqeltrd 2893 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖 ∈ (0...𝑀)) → (𝑄𝑖) ∈ (-π[,]π))
287150, 286sylan2 595 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑄𝑖) ∈ (-π[,]π))
288285, 287sseldi 3916 . . . . . . . . . . . . . . . 16 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑄𝑖) ∈ ℂ)
289229, 288addcomd 10835 . . . . . . . . . . . . . . 15 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑋 + (𝑄𝑖)) = ((𝑄𝑖) + 𝑋))
290150adantl 485 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑖 ∈ (0...𝑀))
291150, 121sylan2 595 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖 ∈ (0..^𝑀)) → ((𝑉𝑖) − 𝑋) ∈ ℝ)
292142fvmpt2 6760 . . . . . . . . . . . . . . . . 17 ((𝑖 ∈ (0...𝑀) ∧ ((𝑉𝑖) − 𝑋) ∈ ℝ) → (𝑄𝑖) = ((𝑉𝑖) − 𝑋))
293290, 291, 292syl2anc 587 . . . . . . . . . . . . . . . 16 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑄𝑖) = ((𝑉𝑖) − 𝑋))
294293oveq1d 7154 . . . . . . . . . . . . . . 15 ((𝜑𝑖 ∈ (0..^𝑀)) → ((𝑄𝑖) + 𝑋) = (((𝑉𝑖) − 𝑋) + 𝑋))
295278recnd 10662 . . . . . . . . . . . . . . . 16 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑉𝑖) ∈ ℂ)
296295, 229npcand 10994 . . . . . . . . . . . . . . 15 ((𝜑𝑖 ∈ (0..^𝑀)) → (((𝑉𝑖) − 𝑋) + 𝑋) = (𝑉𝑖))
297289, 294, 2963eqtrrd 2841 . . . . . . . . . . . . . 14 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑉𝑖) = (𝑋 + (𝑄𝑖)))
298297adantr 484 . . . . . . . . . . . . 13 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑉𝑖) = (𝑋 + (𝑄𝑖)))
299293, 291eqeltrd 2893 . . . . . . . . . . . . . . 15 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑄𝑖) ∈ ℝ)
300299adantr 484 . . . . . . . . . . . . . 14 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑄𝑖) ∈ ℝ)
301205adantl 485 . . . . . . . . . . . . . 14 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑄𝑖) < 𝑠)
302300, 220, 224, 301ltadd2dd 10792 . . . . . . . . . . . . 13 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑋 + (𝑄𝑖)) < (𝑋 + 𝑠))
303298, 302eqbrtrd 5055 . . . . . . . . . . . 12 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑉𝑖) < (𝑋 + 𝑠))
304280, 281, 282, 303, 234eliood 42128 . . . . . . . . . . 11 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑋 + 𝑠) ∈ ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1))))
305 ioossre 12790 . . . . . . . . . . . 12 ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1))) ⊆ ℝ
306305a1i 11 . . . . . . . . . . 11 ((𝜑𝑖 ∈ (0..^𝑀)) → ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1))) ⊆ ℝ)
307300, 301gtned 10768 . . . . . . . . . . 11 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑠 ≠ (𝑄𝑖))
308 fourierdlem75.r . . . . . . . . . . . 12 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑅 ∈ ((𝐹 ↾ ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))) lim (𝑉𝑖)))
309297oveq2d 7155 . . . . . . . . . . . 12 ((𝜑𝑖 ∈ (0..^𝑀)) → ((𝐹 ↾ ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))) lim (𝑉𝑖)) = ((𝐹 ↾ ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))) lim (𝑋 + (𝑄𝑖))))
310308, 309eleqtrd 2895 . . . . . . . . . . 11 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑅 ∈ ((𝐹 ↾ ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1)))) lim (𝑋 + (𝑄𝑖))))
31125, 169, 277, 272, 304, 306, 307, 310, 288fourierdlem53 42794 . . . . . . . . . 10 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑅 ∈ ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ (𝐹‘(𝑋 + 𝑠))) lim (𝑄𝑖)))
312 ioosscn 12791 . . . . . . . . . . . 12 ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ⊆ ℂ
313312a1i 11 . . . . . . . . . . 11 ((𝜑𝑖 ∈ (0..^𝑀)) → ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ⊆ ℂ)
314261adantr 484 . . . . . . . . . . 11 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑊 ∈ ℂ)
315273, 313, 314, 288constlimc 42259 . . . . . . . . . 10 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑊 ∈ ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ 𝑊) lim (𝑄𝑖)))
316272, 273, 274, 256, 275, 311, 315sublimc 42287 . . . . . . . . 9 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑅𝑊) ∈ ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − 𝑊)) lim (𝑄𝑖)))
317316adantr 484 . . . . . . . 8 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) → (𝑅𝑊) ∈ ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − 𝑊)) lim (𝑄𝑖)))
318 iftrue 4434 . . . . . . . . . 10 ((𝑉𝑖) < 𝑋 → if((𝑉𝑖) < 𝑋, 𝑊, 𝑌) = 𝑊)
319318oveq2d 7155 . . . . . . . . 9 ((𝑉𝑖) < 𝑋 → (𝑅 − if((𝑉𝑖) < 𝑋, 𝑊, 𝑌)) = (𝑅𝑊))
320319adantl 485 . . . . . . . 8 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) → (𝑅 − if((𝑉𝑖) < 𝑋, 𝑊, 𝑌)) = (𝑅𝑊))
321215adantl 485 . . . . . . . . . . . . 13 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑠 ∈ ℝ)
322 0red 10637 . . . . . . . . . . . . 13 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 0 ∈ ℝ)
323222ad2antrr 725 . . . . . . . . . . . . . 14 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑄‘(𝑖 + 1)) ∈ ℝ)
324225adantl 485 . . . . . . . . . . . . . 14 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑠 < (𝑄‘(𝑖 + 1)))
325171adantr 484 . . . . . . . . . . . . . . . 16 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) → (𝑄‘(𝑖 + 1)) = ((𝑉‘(𝑖 + 1)) − 𝑋))
326279ad2antrr 725 . . . . . . . . . . . . . . . . . . 19 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) ∧ ¬ (𝑉‘(𝑖 + 1)) ≤ 𝑋) → (𝑉𝑖) ∈ ℝ*)
32736ad2antrr 725 . . . . . . . . . . . . . . . . . . 19 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) ∧ ¬ (𝑉‘(𝑖 + 1)) ≤ 𝑋) → (𝑉‘(𝑖 + 1)) ∈ ℝ*)
328169ad2antrr 725 . . . . . . . . . . . . . . . . . . 19 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) ∧ ¬ (𝑉‘(𝑖 + 1)) ≤ 𝑋) → 𝑋 ∈ ℝ)
329 simplr 768 . . . . . . . . . . . . . . . . . . 19 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) ∧ ¬ (𝑉‘(𝑖 + 1)) ≤ 𝑋) → (𝑉𝑖) < 𝑋)
330 simpr 488 . . . . . . . . . . . . . . . . . . . . 21 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉‘(𝑖 + 1)) ≤ 𝑋) → ¬ (𝑉‘(𝑖 + 1)) ≤ 𝑋)
3311ad2antrr 725 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉‘(𝑖 + 1)) ≤ 𝑋) → 𝑋 ∈ ℝ)
33215adantr 484 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉‘(𝑖 + 1)) ≤ 𝑋) → (𝑉‘(𝑖 + 1)) ∈ ℝ)
333331, 332ltnled 10780 . . . . . . . . . . . . . . . . . . . . 21 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉‘(𝑖 + 1)) ≤ 𝑋) → (𝑋 < (𝑉‘(𝑖 + 1)) ↔ ¬ (𝑉‘(𝑖 + 1)) ≤ 𝑋))
334330, 333mpbird 260 . . . . . . . . . . . . . . . . . . . 20 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉‘(𝑖 + 1)) ≤ 𝑋) → 𝑋 < (𝑉‘(𝑖 + 1)))
335334adantlr 714 . . . . . . . . . . . . . . . . . . 19 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) ∧ ¬ (𝑉‘(𝑖 + 1)) ≤ 𝑋) → 𝑋 < (𝑉‘(𝑖 + 1)))
336326, 327, 328, 329, 335eliood 42128 . . . . . . . . . . . . . . . . . 18 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) ∧ ¬ (𝑉‘(𝑖 + 1)) ≤ 𝑋) → 𝑋 ∈ ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1))))
3375, 4, 3, 180fourierdlem12 42754 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑖 ∈ (0..^𝑀)) → ¬ 𝑋 ∈ ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1))))
338337ad2antrr 725 . . . . . . . . . . . . . . . . . 18 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) ∧ ¬ (𝑉‘(𝑖 + 1)) ≤ 𝑋) → ¬ 𝑋 ∈ ((𝑉𝑖)(,)(𝑉‘(𝑖 + 1))))
339336, 338condan 817 . . . . . . . . . . . . . . . . 17 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) → (𝑉‘(𝑖 + 1)) ≤ 𝑋)
34015adantr 484 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) → (𝑉‘(𝑖 + 1)) ∈ ℝ)
3411ad2antrr 725 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) → 𝑋 ∈ ℝ)
342340, 341suble0d 11224 . . . . . . . . . . . . . . . . 17 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) → (((𝑉‘(𝑖 + 1)) − 𝑋) ≤ 0 ↔ (𝑉‘(𝑖 + 1)) ≤ 𝑋))
343339, 342mpbird 260 . . . . . . . . . . . . . . . 16 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) → ((𝑉‘(𝑖 + 1)) − 𝑋) ≤ 0)
344325, 343eqbrtrd 5055 . . . . . . . . . . . . . . 15 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) → (𝑄‘(𝑖 + 1)) ≤ 0)
345344adantr 484 . . . . . . . . . . . . . 14 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑄‘(𝑖 + 1)) ≤ 0)
346321, 323, 322, 324, 345ltletrd 10793 . . . . . . . . . . . . 13 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑠 < 0)
347321, 322, 346ltnsymd 10782 . . . . . . . . . . . 12 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → ¬ 0 < 𝑠)
348347iffalsed 4439 . . . . . . . . . . 11 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → if(0 < 𝑠, 𝑌, 𝑊) = 𝑊)
349348oveq2d 7155 . . . . . . . . . 10 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → ((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) = ((𝐹‘(𝑋 + 𝑠)) − 𝑊))
350349mpteq2dva 5128 . . . . . . . . 9 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) → (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊))) = (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − 𝑊)))
351350oveq1d 7154 . . . . . . . 8 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) → ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊))) lim (𝑄𝑖)) = ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − 𝑊)) lim (𝑄𝑖)))
352317, 320, 3513eltr4d 2908 . . . . . . 7 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ (𝑉𝑖) < 𝑋) → (𝑅 − if((𝑉𝑖) < 𝑋, 𝑊, 𝑌)) ∈ ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊))) lim (𝑄𝑖)))
3533523adantl3 1165 . . . . . 6 (((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) ∧ (𝑉𝑖) < 𝑋) → (𝑅 − if((𝑉𝑖) < 𝑋, 𝑊, 𝑌)) ∈ ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊))) lim (𝑄𝑖)))
354 eqid 2801 . . . . . . . . . 10 (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ 𝑌) = (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ 𝑌)
355 eqid 2801 . . . . . . . . . 10 (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − 𝑌)) = (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − 𝑌))
356259ad2antrr 725 . . . . . . . . . 10 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑌 ∈ ℂ)
357259adantr 484 . . . . . . . . . . 11 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑌 ∈ ℂ)
358354, 313, 357, 288constlimc 42259 . . . . . . . . . 10 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝑌 ∈ ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ 𝑌) lim (𝑄𝑖)))
359272, 354, 355, 256, 356, 311, 358sublimc 42287 . . . . . . . . 9 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑅𝑌) ∈ ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − 𝑌)) lim (𝑄𝑖)))
360359adantr 484 . . . . . . . 8 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) → (𝑅𝑌) ∈ ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − 𝑌)) lim (𝑄𝑖)))
361 iffalse 4437 . . . . . . . . . 10 (¬ (𝑉𝑖) < 𝑋 → if((𝑉𝑖) < 𝑋, 𝑊, 𝑌) = 𝑌)
362361oveq2d 7155 . . . . . . . . 9 (¬ (𝑉𝑖) < 𝑋 → (𝑅 − if((𝑉𝑖) < 𝑋, 𝑊, 𝑌)) = (𝑅𝑌))
363362adantl 485 . . . . . . . 8 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) → (𝑅 − if((𝑉𝑖) < 𝑋, 𝑊, 𝑌)) = (𝑅𝑌))
364 0red 10637 . . . . . . . . . . . . 13 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 0 ∈ ℝ)
365299ad2antrr 725 . . . . . . . . . . . . 13 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑄𝑖) ∈ ℝ)
366215adantl 485 . . . . . . . . . . . . 13 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑠 ∈ ℝ)
3671ad2antrr 725 . . . . . . . . . . . . . . . . 17 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) → 𝑋 ∈ ℝ)
368278adantr 484 . . . . . . . . . . . . . . . . 17 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) → (𝑉𝑖) ∈ ℝ)
369 simpr 488 . . . . . . . . . . . . . . . . 17 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) → ¬ (𝑉𝑖) < 𝑋)
370367, 368, 369nltled 10783 . . . . . . . . . . . . . . . 16 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) → 𝑋 ≤ (𝑉𝑖))
371368, 367subge0d 11223 . . . . . . . . . . . . . . . 16 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) → (0 ≤ ((𝑉𝑖) − 𝑋) ↔ 𝑋 ≤ (𝑉𝑖)))
372370, 371mpbird 260 . . . . . . . . . . . . . . 15 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) → 0 ≤ ((𝑉𝑖) − 𝑋))
373293eqcomd 2807 . . . . . . . . . . . . . . . 16 ((𝜑𝑖 ∈ (0..^𝑀)) → ((𝑉𝑖) − 𝑋) = (𝑄𝑖))
374373adantr 484 . . . . . . . . . . . . . . 15 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) → ((𝑉𝑖) − 𝑋) = (𝑄𝑖))
375372, 374breqtrd 5059 . . . . . . . . . . . . . 14 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) → 0 ≤ (𝑄𝑖))
376375adantr 484 . . . . . . . . . . . . 13 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 0 ≤ (𝑄𝑖))
377205adantl 485 . . . . . . . . . . . . 13 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝑄𝑖) < 𝑠)
378364, 365, 366, 376, 377lelttrd 10791 . . . . . . . . . . . 12 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 0 < 𝑠)
379378iftrued 4436 . . . . . . . . . . 11 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → if(0 < 𝑠, 𝑌, 𝑊) = 𝑌)
380379oveq2d 7155 . . . . . . . . . 10 ((((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → ((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) = ((𝐹‘(𝑋 + 𝑠)) − 𝑌))
381380mpteq2dva 5128 . . . . . . . . 9 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) → (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊))) = (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − 𝑌)))
382381oveq1d 7154 . . . . . . . 8 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) → ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊))) lim (𝑄𝑖)) = ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − 𝑌)) lim (𝑄𝑖)))
383360, 363, 3823eltr4d 2908 . . . . . . 7 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) < 𝑋) → (𝑅 − if((𝑉𝑖) < 𝑋, 𝑊, 𝑌)) ∈ ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊))) lim (𝑄𝑖)))
3843833adantl3 1165 . . . . . 6 (((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) ∧ ¬ (𝑉𝑖) < 𝑋) → (𝑅 − if((𝑉𝑖) < 𝑋, 𝑊, 𝑌)) ∈ ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊))) lim (𝑄𝑖)))
385353, 384pm2.61dan 812 . . . . 5 ((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) → (𝑅 − if((𝑉𝑖) < 𝑋, 𝑊, 𝑌)) ∈ ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ ((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊))) lim (𝑄𝑖)))
386313, 248, 288idlimc 42261 . . . . . 6 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑄𝑖) ∈ ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ 𝑠) lim (𝑄𝑖)))
3873863adant3 1129 . . . . 5 ((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) → (𝑄𝑖) ∈ ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ 𝑠) lim (𝑄𝑖)))
3882933adant3 1129 . . . . . 6 ((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) → (𝑄𝑖) = ((𝑉𝑖) − 𝑋))
3892953adant3 1129 . . . . . . 7 ((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) → (𝑉𝑖) ∈ ℂ)
3902293adant3 1129 . . . . . . 7 ((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) → 𝑋 ∈ ℂ)
391 neqne 2998 . . . . . . . 8 (¬ (𝑉𝑖) = 𝑋 → (𝑉𝑖) ≠ 𝑋)
3923913ad2ant3 1132 . . . . . . 7 ((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) → (𝑉𝑖) ≠ 𝑋)
393389, 390, 392subne0d 10999 . . . . . 6 ((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) → ((𝑉𝑖) − 𝑋) ≠ 0)
394388, 393eqnetrd 3057 . . . . 5 ((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) → (𝑄𝑖) ≠ 0)
3951983adantl3 1165 . . . . . 6 (((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → ¬ 𝑠 = 0)
396395neqned 2997 . . . . 5 (((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑠 ≠ 0)
397247, 248, 249, 265, 271, 385, 387, 394, 396divlimc 42291 . . . 4 ((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) → ((𝑅 − if((𝑉𝑖) < 𝑋, 𝑊, 𝑌)) / (𝑄𝑖)) ∈ ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠)) lim (𝑄𝑖)))
398 iffalse 4437 . . . . . 6 (¬ (𝑉𝑖) = 𝑋 → if((𝑉𝑖) = 𝑋, 𝐸, ((𝑅 − if((𝑉𝑖) < 𝑋, 𝑊, 𝑌)) / (𝑄𝑖))) = ((𝑅 − if((𝑉𝑖) < 𝑋, 𝑊, 𝑌)) / (𝑄𝑖)))
39995, 398syl5eq 2848 . . . . 5 (¬ (𝑉𝑖) = 𝑋𝐴 = ((𝑅 − if((𝑉𝑖) < 𝑋, 𝑊, 𝑌)) / (𝑄𝑖)))
4003993ad2ant3 1132 . . . 4 ((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) → 𝐴 = ((𝑅 − if((𝑉𝑖) < 𝑋, 𝑊, 𝑌)) / (𝑄𝑖)))
401 ioossre 12790 . . . . . . . . . . . . 13 (𝑋(,)+∞) ⊆ ℝ
402401a1i 11 . . . . . . . . . . . 12 (𝜑 → (𝑋(,)+∞) ⊆ ℝ)
40324, 402fssresd 6523 . . . . . . . . . . 11 (𝜑 → (𝐹 ↾ (𝑋(,)+∞)):(𝑋(,)+∞)⟶ℝ)
404401, 47sstrid 3929 . . . . . . . . . . 11 (𝜑 → (𝑋(,)+∞) ⊆ ℂ)
40534a1i 11 . . . . . . . . . . . 12 (𝜑 → +∞ ∈ ℝ*)
4061ltpnfd 12508 . . . . . . . . . . . 12 (𝜑𝑋 < +∞)
40752, 405, 1, 406lptioo1cn 42281 . . . . . . . . . . 11 (𝜑𝑋 ∈ ((limPt‘(TopOpen‘ℂfld))‘(𝑋(,)+∞)))
408403, 404, 407, 31limcrecl 42264 . . . . . . . . . 10 (𝜑𝑌 ∈ ℝ)
40924, 1, 408, 260, 99fourierdlem9 42751 . . . . . . . . 9 (𝜑𝐻:(-π[,]π)⟶ℝ)
410409adantr 484 . . . . . . . 8 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝐻:(-π[,]π)⟶ℝ)
411410, 147feqresmpt 6713 . . . . . . 7 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝐻 ↾ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) = (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ (𝐻𝑠)))
412147sselda 3918 . . . . . . . . . 10 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑠 ∈ (-π[,]π))
413 0cnd 10627 . . . . . . . . . . 11 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 0 ∈ ℂ)
414262ad2antrr 725 . . . . . . . . . . . . 13 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → if(0 < 𝑠, 𝑌, 𝑊) ∈ ℂ)
415256, 414subcld 10990 . . . . . . . . . . . 12 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → ((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) ∈ ℂ)
416266adantl 485 . . . . . . . . . . . 12 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑠 ∈ ℂ)
417198neqned 2997 . . . . . . . . . . . 12 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → 𝑠 ≠ 0)
418415, 416, 417divcld 11409 . . . . . . . . . . 11 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠) ∈ ℂ)
419413, 418ifcld 4473 . . . . . . . . . 10 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠)) ∈ ℂ)
42099fvmpt2 6760 . . . . . . . . . 10 ((𝑠 ∈ (-π[,]π) ∧ if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠)) ∈ ℂ) → (𝐻𝑠) = if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠)))
421412, 419, 420syl2anc 587 . . . . . . . . 9 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝐻𝑠) = if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠)))
422198iffalsed 4439 . . . . . . . . 9 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → if(𝑠 = 0, 0, (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠)) = (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠))
423421, 422eqtrd 2836 . . . . . . . 8 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ 𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) → (𝐻𝑠) = (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠))
424423mpteq2dva 5128 . . . . . . 7 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ (𝐻𝑠)) = (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠)))
425411, 424eqtrd 2836 . . . . . 6 ((𝜑𝑖 ∈ (0..^𝑀)) → (𝐻 ↾ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) = (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠)))
4264253adant3 1129 . . . . 5 ((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) → (𝐻 ↾ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) = (𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠)))
427426oveq1d 7154 . . . 4 ((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) → ((𝐻 ↾ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) lim (𝑄𝑖)) = ((𝑠 ∈ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1))) ↦ (((𝐹‘(𝑋 + 𝑠)) − if(0 < 𝑠, 𝑌, 𝑊)) / 𝑠)) lim (𝑄𝑖)))
428397, 400, 4273eltr4d 2908 . . 3 ((𝜑𝑖 ∈ (0..^𝑀) ∧ ¬ (𝑉𝑖) = 𝑋) → 𝐴 ∈ ((𝐻 ↾ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) lim (𝑄𝑖)))
4294283expa 1115 . 2 (((𝜑𝑖 ∈ (0..^𝑀)) ∧ ¬ (𝑉𝑖) = 𝑋) → 𝐴 ∈ ((𝐻 ↾ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) lim (𝑄𝑖)))
430246, 429pm2.61dan 812 1 ((𝜑𝑖 ∈ (0..^𝑀)) → 𝐴 ∈ ((𝐻 ↾ ((𝑄𝑖)(,)(𝑄‘(𝑖 + 1)))) lim (𝑄𝑖)))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 209  wa 399  w3a 1084   = wceq 1538  wcel 2112  wne 2990  wral 3109  wrex 3110  {crab 3113  wss 3884  ifcif 4428  {csn 4528   class class class wbr 5033  cmpt 5113  dom cdm 5523  ran crn 5524  cres 5525   Fn wfn 6323  wf 6324  cfv 6328  (class class class)co 7139  m cmap 8393  cc 10528  cr 10529  0cc0 10530  1c1 10531   + caddc 10533  +∞cpnf 10665  *cxr 10667   < clt 10668  cle 10669  cmin 10863  -cneg 10864   / cdiv 11290  cn 11629  (,)cioo 12730  [,]cicc 12733  ...cfz 12889  ..^cfzo 13032  πcpi 15416  TopOpenctopn 16691  topGenctg 16707  fldccnfld 20095  intcnt 21626   lim climc 24469   D cdv 24470
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2114  ax-9 2122  ax-10 2143  ax-11 2159  ax-12 2176  ax-ext 2773  ax-rep 5157  ax-sep 5170  ax-nul 5177  ax-pow 5234  ax-pr 5298  ax-un 7445  ax-inf2 9092  ax-cnex 10586  ax-resscn 10587  ax-1cn 10588  ax-icn 10589  ax-addcl 10590  ax-addrcl 10591  ax-mulcl 10592  ax-mulrcl 10593  ax-mulcom 10594  ax-addass 10595  ax-mulass 10596  ax-distr 10597  ax-i2m1 10598  ax-1ne0 10599  ax-1rid 10600  ax-rnegex 10601  ax-rrecex 10602  ax-cnre 10603  ax-pre-lttri 10604  ax-pre-lttrn 10605  ax-pre-ltadd 10606  ax-pre-mulgt0 10607  ax-pre-sup 10608  ax-addf 10609  ax-mulf 10610
This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3or 1085  df-3an 1086  df-tru 1541  df-fal 1551  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2601  df-eu 2632  df-clab 2780  df-cleq 2794  df-clel 2873  df-nfc 2941  df-ne 2991  df-nel 3095  df-ral 3114  df-rex 3115  df-reu 3116  df-rmo 3117  df-rab 3118  df-v 3446  df-sbc 3724  df-csb 3832  df-dif 3887  df-un 3889  df-in 3891  df-ss 3901  df-pss 3903  df-nul 4247  df-if 4429  df-pw 4502  df-sn 4529  df-pr 4531  df-tp 4533  df-op 4535  df-uni 4804  df-int 4842  df-iun 4886  df-iin 4887  df-br 5034  df-opab 5096  df-mpt 5114  df-tr 5140  df-id 5428  df-eprel 5433  df-po 5442  df-so 5443  df-fr 5482  df-se 5483  df-we 5484  df-xp 5529  df-rel 5530  df-cnv 5531  df-co 5532  df-dm 5533  df-rn 5534  df-res 5535  df-ima 5536  df-pred 6120  df-ord 6166  df-on 6167  df-lim 6168  df-suc 6169  df-iota 6287  df-fun 6330  df-fn 6331  df-f 6332  df-f1 6333  df-fo 6334  df-f1o 6335  df-fv 6336  df-isom 6337  df-riota 7097  df-ov 7142  df-oprab 7143  df-mpo 7144  df-of 7393  df-om 7565  df-1st 7675  df-2nd 7676  df-supp 7818  df-wrecs 7934  df-recs 7995  df-rdg 8033  df-1o 8089  df-2o 8090  df-oadd 8093  df-er 8276  df-map 8395  df-pm 8396  df-ixp 8449  df-en 8497  df-dom 8498  df-sdom 8499  df-fin 8500  df-fsupp 8822  df-fi 8863  df-sup 8894  df-inf 8895  df-oi 8962  df-card 9356  df-pnf 10670  df-mnf 10671  df-xr 10672  df-ltxr 10673  df-le 10674  df-sub 10865  df-neg 10866  df-div 11291  df-nn 11630  df-2 11692  df-3 11693  df-4 11694  df-5 11695  df-6 11696  df-7 11697  df-8 11698  df-9 11699  df-n0 11890  df-z 11974  df-dec 12091  df-uz 12236  df-q 12341  df-rp 12382  df-xneg 12499  df-xadd 12500  df-xmul 12501  df-ioo 12734  df-ioc 12735  df-ico 12736  df-icc 12737  df-fz 12890  df-fzo 13033  df-fl 13161  df-seq 13369  df-exp 13430  df-fac 13634  df-bc 13663  df-hash 13691  df-shft 14422  df-cj 14454  df-re 14455  df-im 14456  df-sqrt 14590  df-abs 14591  df-limsup 14824  df-clim 14841  df-rlim 14842  df-sum 15039  df-ef 15417  df-sin 15419  df-cos 15420  df-pi 15422  df-struct 16481  df-ndx 16482  df-slot 16483  df-base 16485  df-sets 16486  df-ress 16487  df-plusg 16574  df-mulr 16575  df-starv 16576  df-sca 16577  df-vsca 16578  df-ip 16579  df-tset 16580  df-ple 16581  df-ds 16583  df-unif 16584  df-hom 16585  df-cco 16586  df-rest 16692  df-topn 16693  df-0g 16711  df-gsum 16712  df-topgen 16713  df-pt 16714  df-prds 16717  df-xrs 16771  df-qtop 16776  df-imas 16777  df-xps 16779  df-mre 16853  df-mrc 16854  df-acs 16856  df-mgm 17848  df-sgrp 17897  df-mnd 17908  df-submnd 17953  df-mulg 18221  df-cntz 18443  df-cmn 18904  df-psmet 20087  df-xmet 20088  df-met 20089  df-bl 20090  df-mopn 20091  df-fbas 20092  df-fg 20093  df-cnfld 20096  df-top 21503  df-topon 21520  df-topsp 21542  df-bases 21555  df-cld 21628  df-ntr 21629  df-cls 21630  df-nei 21707  df-lp 21745  df-perf 21746  df-cn 21836  df-cnp 21837  df-haus 21924  df-cmp 21996  df-tx 22171  df-hmeo 22364  df-fil 22455  df-fm 22547  df-flim 22548  df-flf 22549  df-xms 22931  df-ms 22932  df-tms 22933  df-cncf 23487  df-limc 24473  df-dv 24474
This theorem is referenced by:  fourierdlem85  42826  fourierdlem88  42829  fourierdlem103  42844  fourierdlem104  42845
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