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Theorem lhop1lem 23494
Description: Lemma for lhop1 23495. (Contributed by Mario Carneiro, 29-Dec-2016.)
Hypotheses
Ref Expression
lhop1.a (𝜑𝐴 ∈ ℝ)
lhop1.b (𝜑𝐵 ∈ ℝ*)
lhop1.l (𝜑𝐴 < 𝐵)
lhop1.f (𝜑𝐹:(𝐴(,)𝐵)⟶ℝ)
lhop1.g (𝜑𝐺:(𝐴(,)𝐵)⟶ℝ)
lhop1.if (𝜑 → dom (ℝ D 𝐹) = (𝐴(,)𝐵))
lhop1.ig (𝜑 → dom (ℝ D 𝐺) = (𝐴(,)𝐵))
lhop1.f0 (𝜑 → 0 ∈ (𝐹 lim 𝐴))
lhop1.g0 (𝜑 → 0 ∈ (𝐺 lim 𝐴))
lhop1.gn0 (𝜑 → ¬ 0 ∈ ran 𝐺)
lhop1.gd0 (𝜑 → ¬ 0 ∈ ran (ℝ D 𝐺))
lhop1.c (𝜑𝐶 ∈ ((𝑧 ∈ (𝐴(,)𝐵) ↦ (((ℝ D 𝐹)‘𝑧) / ((ℝ D 𝐺)‘𝑧))) lim 𝐴))
lhop1lem.e (𝜑𝐸 ∈ ℝ+)
lhop1lem.d (𝜑𝐷 ∈ ℝ)
lhop1lem.db (𝜑𝐷𝐵)
lhop1lem.x (𝜑𝑋 ∈ (𝐴(,)𝐷))
lhop1lem.t (𝜑 → ∀𝑡 ∈ (𝐴(,)𝐷)(abs‘((((ℝ D 𝐹)‘𝑡) / ((ℝ D 𝐺)‘𝑡)) − 𝐶)) < 𝐸)
lhop1lem.r 𝑅 = (𝐴 + (𝑟 / 2))
Assertion
Ref Expression
lhop1lem (𝜑 → (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)) < (2 · 𝐸))
Distinct variable groups:   𝑧,𝑟,𝐵   𝑡,𝐷   𝜑,𝑟,𝑧   𝑧,𝑅   𝑡,𝑟,𝐴,𝑧   𝐸,𝑟,𝑡   𝑋,𝑟,𝑧   𝐶,𝑟,𝑡,𝑧   𝐹,𝑟,𝑡,𝑧   𝐺,𝑟,𝑡,𝑧
Allowed substitution hints:   𝜑(𝑡)   𝐵(𝑡)   𝐷(𝑧,𝑟)   𝑅(𝑡,𝑟)   𝐸(𝑧)   𝑋(𝑡)

Proof of Theorem lhop1lem
Dummy variables 𝑣 𝑥 𝑢 𝑤 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 lhop1.f . . . . . . 7 (𝜑𝐹:(𝐴(,)𝐵)⟶ℝ)
2 lhop1.b . . . . . . . . 9 (𝜑𝐵 ∈ ℝ*)
3 lhop1lem.db . . . . . . . . 9 (𝜑𝐷𝐵)
4 iooss2 12035 . . . . . . . . 9 ((𝐵 ∈ ℝ*𝐷𝐵) → (𝐴(,)𝐷) ⊆ (𝐴(,)𝐵))
52, 3, 4syl2anc 690 . . . . . . . 8 (𝜑 → (𝐴(,)𝐷) ⊆ (𝐴(,)𝐵))
6 lhop1lem.x . . . . . . . 8 (𝜑𝑋 ∈ (𝐴(,)𝐷))
75, 6sseldd 3565 . . . . . . 7 (𝜑𝑋 ∈ (𝐴(,)𝐵))
81, 7ffvelrnd 6250 . . . . . 6 (𝜑 → (𝐹𝑋) ∈ ℝ)
98recnd 9921 . . . . 5 (𝜑 → (𝐹𝑋) ∈ ℂ)
10 lhop1.g . . . . . . 7 (𝜑𝐺:(𝐴(,)𝐵)⟶ℝ)
1110, 7ffvelrnd 6250 . . . . . 6 (𝜑 → (𝐺𝑋) ∈ ℝ)
1211recnd 9921 . . . . 5 (𝜑 → (𝐺𝑋) ∈ ℂ)
13 lhop1.gn0 . . . . . 6 (𝜑 → ¬ 0 ∈ ran 𝐺)
14 ffn 5941 . . . . . . . . . 10 (𝐺:(𝐴(,)𝐵)⟶ℝ → 𝐺 Fn (𝐴(,)𝐵))
1510, 14syl 17 . . . . . . . . 9 (𝜑𝐺 Fn (𝐴(,)𝐵))
16 fnfvelrn 6246 . . . . . . . . 9 ((𝐺 Fn (𝐴(,)𝐵) ∧ 𝑋 ∈ (𝐴(,)𝐵)) → (𝐺𝑋) ∈ ran 𝐺)
1715, 7, 16syl2anc 690 . . . . . . . 8 (𝜑 → (𝐺𝑋) ∈ ran 𝐺)
18 eleq1 2672 . . . . . . . 8 ((𝐺𝑋) = 0 → ((𝐺𝑋) ∈ ran 𝐺 ↔ 0 ∈ ran 𝐺))
1917, 18syl5ibcom 233 . . . . . . 7 (𝜑 → ((𝐺𝑋) = 0 → 0 ∈ ran 𝐺))
2019necon3bd 2792 . . . . . 6 (𝜑 → (¬ 0 ∈ ran 𝐺 → (𝐺𝑋) ≠ 0))
2113, 20mpd 15 . . . . 5 (𝜑 → (𝐺𝑋) ≠ 0)
229, 12, 21divcld 10647 . . . 4 (𝜑 → ((𝐹𝑋) / (𝐺𝑋)) ∈ ℂ)
23 limccl 23359 . . . . 5 ((𝑧 ∈ (𝐴(,)𝐵) ↦ (((ℝ D 𝐹)‘𝑧) / ((ℝ D 𝐺)‘𝑧))) lim 𝐴) ⊆ ℂ
24 lhop1.c . . . . 5 (𝜑𝐶 ∈ ((𝑧 ∈ (𝐴(,)𝐵) ↦ (((ℝ D 𝐹)‘𝑧) / ((ℝ D 𝐺)‘𝑧))) lim 𝐴))
2523, 24sseldi 3562 . . . 4 (𝜑𝐶 ∈ ℂ)
2622, 25subcld 10240 . . 3 (𝜑 → (((𝐹𝑋) / (𝐺𝑋)) − 𝐶) ∈ ℂ)
2726abscld 13966 . 2 (𝜑 → (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)) ∈ ℝ)
28 lhop1lem.e . . 3 (𝜑𝐸 ∈ ℝ+)
2928rpred 11701 . 2 (𝜑𝐸 ∈ ℝ)
30 2re 10934 . . . 4 2 ∈ ℝ
3130a1i 11 . . 3 (𝜑 → 2 ∈ ℝ)
3231, 29remulcld 9923 . 2 (𝜑 → (2 · 𝐸) ∈ ℝ)
33 cnxmet 22315 . . . . . . . . . . . . 13 (abs ∘ − ) ∈ (∞Met‘ℂ)
3433a1i 11 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → (abs ∘ − ) ∈ (∞Met‘ℂ))
35 simprl 789 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → 𝑣 ∈ (TopOpen‘ℂfld))
36 simprr 791 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → 𝐴𝑣)
37 eliooord 12057 . . . . . . . . . . . . . . . 16 (𝑋 ∈ (𝐴(,)𝐷) → (𝐴 < 𝑋𝑋 < 𝐷))
386, 37syl 17 . . . . . . . . . . . . . . 15 (𝜑 → (𝐴 < 𝑋𝑋 < 𝐷))
3938simpld 473 . . . . . . . . . . . . . 14 (𝜑𝐴 < 𝑋)
40 lhop1.a . . . . . . . . . . . . . . 15 (𝜑𝐴 ∈ ℝ)
41 ioossre 12059 . . . . . . . . . . . . . . . 16 (𝐴(,)𝐷) ⊆ ℝ
4241, 6sseldi 3562 . . . . . . . . . . . . . . 15 (𝜑𝑋 ∈ ℝ)
43 difrp 11697 . . . . . . . . . . . . . . 15 ((𝐴 ∈ ℝ ∧ 𝑋 ∈ ℝ) → (𝐴 < 𝑋 ↔ (𝑋𝐴) ∈ ℝ+))
4440, 42, 43syl2anc 690 . . . . . . . . . . . . . 14 (𝜑 → (𝐴 < 𝑋 ↔ (𝑋𝐴) ∈ ℝ+))
4539, 44mpbid 220 . . . . . . . . . . . . 13 (𝜑 → (𝑋𝐴) ∈ ℝ+)
4645adantr 479 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → (𝑋𝐴) ∈ ℝ+)
47 eqid 2606 . . . . . . . . . . . . . 14 (TopOpen‘ℂfld) = (TopOpen‘ℂfld)
4847cnfldtopn 22324 . . . . . . . . . . . . 13 (TopOpen‘ℂfld) = (MetOpen‘(abs ∘ − ))
4948mopni3 22047 . . . . . . . . . . . 12 ((((abs ∘ − ) ∈ (∞Met‘ℂ) ∧ 𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣) ∧ (𝑋𝐴) ∈ ℝ+) → ∃𝑟 ∈ ℝ+ (𝑟 < (𝑋𝐴) ∧ (𝐴(ball‘(abs ∘ − ))𝑟) ⊆ 𝑣))
5034, 35, 36, 46, 49syl31anc 1320 . . . . . . . . . . 11 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → ∃𝑟 ∈ ℝ+ (𝑟 < (𝑋𝐴) ∧ (𝐴(ball‘(abs ∘ − ))𝑟) ⊆ 𝑣))
51 lhop1lem.r . . . . . . . . . . . . . . . . . . . . . . . 24 𝑅 = (𝐴 + (𝑟 / 2))
5240adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐴 ∈ ℝ)
53 simprl 789 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑟 ∈ ℝ+)
5453rpred 11701 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑟 ∈ ℝ)
5554rehalfcld 11123 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) ∈ ℝ)
5652, 55readdcld 9922 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐴 + (𝑟 / 2)) ∈ ℝ)
5751, 56syl5eqel 2688 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ ℝ)
5857recnd 9921 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ ℂ)
5940recnd 9921 . . . . . . . . . . . . . . . . . . . . . . 23 (𝜑𝐴 ∈ ℂ)
6059adantr 479 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐴 ∈ ℂ)
61 eqid 2606 . . . . . . . . . . . . . . . . . . . . . . 23 (abs ∘ − ) = (abs ∘ − )
6261cnmetdval 22313 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑅 ∈ ℂ ∧ 𝐴 ∈ ℂ) → (𝑅(abs ∘ − )𝐴) = (abs‘(𝑅𝐴)))
6358, 60, 62syl2anc 690 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(abs ∘ − )𝐴) = (abs‘(𝑅𝐴)))
6451oveq1i 6534 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑅𝐴) = ((𝐴 + (𝑟 / 2)) − 𝐴)
6554recnd 9921 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑟 ∈ ℂ)
6665halfcld 11121 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) ∈ ℂ)
6760, 66pncan2d 10242 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((𝐴 + (𝑟 / 2)) − 𝐴) = (𝑟 / 2))
6864, 67syl5eq 2652 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅𝐴) = (𝑟 / 2))
6968fveq2d 6089 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (abs‘(𝑅𝐴)) = (abs‘(𝑟 / 2)))
7053rphalfcld 11713 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) ∈ ℝ+)
7170rpred 11701 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) ∈ ℝ)
7270rpge0d 11705 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 0 ≤ (𝑟 / 2))
7371, 72absidd 13952 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (abs‘(𝑟 / 2)) = (𝑟 / 2))
7463, 69, 733eqtrd 2644 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(abs ∘ − )𝐴) = (𝑟 / 2))
75 rphalflt 11689 . . . . . . . . . . . . . . . . . . . . 21 (𝑟 ∈ ℝ+ → (𝑟 / 2) < 𝑟)
7653, 75syl 17 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) < 𝑟)
7774, 76eqbrtrd 4596 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(abs ∘ − )𝐴) < 𝑟)
7833a1i 11 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (abs ∘ − ) ∈ (∞Met‘ℂ))
7954rexrd 9942 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑟 ∈ ℝ*)
80 elbl3 21945 . . . . . . . . . . . . . . . . . . . 20 ((((abs ∘ − ) ∈ (∞Met‘ℂ) ∧ 𝑟 ∈ ℝ*) ∧ (𝐴 ∈ ℂ ∧ 𝑅 ∈ ℂ)) → (𝑅 ∈ (𝐴(ball‘(abs ∘ − ))𝑟) ↔ (𝑅(abs ∘ − )𝐴) < 𝑟))
8178, 79, 60, 58, 80syl22anc 1318 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅 ∈ (𝐴(ball‘(abs ∘ − ))𝑟) ↔ (𝑅(abs ∘ − )𝐴) < 𝑟))
8277, 81mpbird 245 . . . . . . . . . . . . . . . . . 18 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ (𝐴(ball‘(abs ∘ − ))𝑟))
8352, 70ltaddrpd 11734 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐴 < (𝐴 + (𝑟 / 2)))
8483, 51syl6breqr 4616 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐴 < 𝑅)
8542adantr 479 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑋 ∈ ℝ)
8685, 52resubcld 10306 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑋𝐴) ∈ ℝ)
87 simprr 791 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑟 < (𝑋𝐴))
8871, 54, 86, 76, 87lttrd 10046 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) < (𝑋𝐴))
8952, 71, 85ltaddsub2d 10474 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((𝐴 + (𝑟 / 2)) < 𝑋 ↔ (𝑟 / 2) < (𝑋𝐴)))
9088, 89mpbird 245 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐴 + (𝑟 / 2)) < 𝑋)
9151, 90syl5eqbr 4609 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 < 𝑋)
9252rexrd 9942 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐴 ∈ ℝ*)
9342rexrd 9942 . . . . . . . . . . . . . . . . . . . . 21 (𝜑𝑋 ∈ ℝ*)
9493adantr 479 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑋 ∈ ℝ*)
95 elioo2 12040 . . . . . . . . . . . . . . . . . . . 20 ((𝐴 ∈ ℝ*𝑋 ∈ ℝ*) → (𝑅 ∈ (𝐴(,)𝑋) ↔ (𝑅 ∈ ℝ ∧ 𝐴 < 𝑅𝑅 < 𝑋)))
9692, 94, 95syl2anc 690 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅 ∈ (𝐴(,)𝑋) ↔ (𝑅 ∈ ℝ ∧ 𝐴 < 𝑅𝑅 < 𝑋)))
9757, 84, 91, 96mpbir3and 1237 . . . . . . . . . . . . . . . . . 18 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ (𝐴(,)𝑋))
9882, 97elind 3756 . . . . . . . . . . . . . . . . 17 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ ((𝐴(ball‘(abs ∘ − ))𝑟) ∩ (𝐴(,)𝑋)))
999adantr 479 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐹𝑋) ∈ ℂ)
1001adantr 479 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐹:(𝐴(,)𝐵)⟶ℝ)
101 lhop1lem.d . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝜑𝐷 ∈ ℝ)
102101rexrd 9942 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝜑𝐷 ∈ ℝ*)
10338simprd 477 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝜑𝑋 < 𝐷)
10442, 101, 103ltled 10033 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝜑𝑋𝐷)
10593, 102, 2, 104, 3xrletrd 11825 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝜑𝑋𝐵)
106 iooss2 12035 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝐵 ∈ ℝ*𝑋𝐵) → (𝐴(,)𝑋) ⊆ (𝐴(,)𝐵))
1072, 105, 106syl2anc 690 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝜑 → (𝐴(,)𝑋) ⊆ (𝐴(,)𝐵))
108107adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐴(,)𝑋) ⊆ (𝐴(,)𝐵))
109108, 97sseldd 3565 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ (𝐴(,)𝐵))
110100, 109ffvelrnd 6250 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐹𝑅) ∈ ℝ)
111110recnd 9921 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐹𝑅) ∈ ℂ)
11299, 111subcld 10240 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((𝐹𝑋) − (𝐹𝑅)) ∈ ℂ)
11312adantr 479 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐺𝑋) ∈ ℂ)
11410adantr 479 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐺:(𝐴(,)𝐵)⟶ℝ)
115114, 109ffvelrnd 6250 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐺𝑅) ∈ ℝ)
116115recnd 9921 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐺𝑅) ∈ ℂ)
117113, 116subcld 10240 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((𝐺𝑋) − (𝐺𝑅)) ∈ ℂ)
118 lhop1.gd0 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝜑 → ¬ 0 ∈ ran (ℝ D 𝐺))
119118adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ¬ 0 ∈ ran (ℝ D 𝐺))
12012adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐺𝑋) ∈ ℂ)
121107sselda 3564 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑧 ∈ (𝐴(,)𝐵))
12210ffvelrnda 6249 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ((𝜑𝑧 ∈ (𝐴(,)𝐵)) → (𝐺𝑧) ∈ ℝ)
123121, 122syldan 485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐺𝑧) ∈ ℝ)
124123recnd 9921 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐺𝑧) ∈ ℂ)
125120, 124subeq0ad 10250 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (((𝐺𝑋) − (𝐺𝑧)) = 0 ↔ (𝐺𝑋) = (𝐺𝑧)))
126 ioossre 12059 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 (𝐴(,)𝐵) ⊆ ℝ
127126, 121sseldi 3562 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑧 ∈ ℝ)
128127adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → 𝑧 ∈ ℝ)
12942ad2antrr 757 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → 𝑋 ∈ ℝ)
130 eliooord 12057 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (𝑧 ∈ (𝐴(,)𝑋) → (𝐴 < 𝑧𝑧 < 𝑋))
131130adantl 480 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐴 < 𝑧𝑧 < 𝑋))
132131simprd 477 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑧 < 𝑋)
133132adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → 𝑧 < 𝑋)
13440rexrd 9942 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (𝜑𝐴 ∈ ℝ*)
135134adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝐴 ∈ ℝ*)
1362adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝐵 ∈ ℝ*)
137131simpld 473 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝐴 < 𝑧)
13893, 102, 2, 103, 3xrltletrd 11824 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (𝜑𝑋 < 𝐵)
139138adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑋 < 𝐵)
140 iccssioo 12066 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝐴 ∈ ℝ*𝐵 ∈ ℝ*) ∧ (𝐴 < 𝑧𝑋 < 𝐵)) → (𝑧[,]𝑋) ⊆ (𝐴(,)𝐵))
141135, 136, 137, 139, 140syl22anc 1318 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝑧[,]𝑋) ⊆ (𝐴(,)𝐵))
142141adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (𝑧[,]𝑋) ⊆ (𝐴(,)𝐵))
143 ax-resscn 9846 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ℝ ⊆ ℂ
144143a1i 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (𝜑 → ℝ ⊆ ℂ)
145 fss 5952 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 ((𝐺:(𝐴(,)𝐵)⟶ℝ ∧ ℝ ⊆ ℂ) → 𝐺:(𝐴(,)𝐵)⟶ℂ)
14610, 143, 145sylancl 692 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (𝜑𝐺:(𝐴(,)𝐵)⟶ℂ)
147126a1i 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (𝜑 → (𝐴(,)𝐵) ⊆ ℝ)
148 lhop1.ig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (𝜑 → dom (ℝ D 𝐺) = (𝐴(,)𝐵))
149 dvcn 23404 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (((ℝ ⊆ ℂ ∧ 𝐺:(𝐴(,)𝐵)⟶ℂ ∧ (𝐴(,)𝐵) ⊆ ℝ) ∧ dom (ℝ D 𝐺) = (𝐴(,)𝐵)) → 𝐺 ∈ ((𝐴(,)𝐵)–cn→ℂ))
150144, 146, 147, 148, 149syl31anc 1320 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (𝜑𝐺 ∈ ((𝐴(,)𝐵)–cn→ℂ))
151 cncffvrn 22437 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ((ℝ ⊆ ℂ ∧ 𝐺 ∈ ((𝐴(,)𝐵)–cn→ℂ)) → (𝐺 ∈ ((𝐴(,)𝐵)–cn→ℝ) ↔ 𝐺:(𝐴(,)𝐵)⟶ℝ))
152143, 150, 151sylancr 693 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (𝜑 → (𝐺 ∈ ((𝐴(,)𝐵)–cn→ℝ) ↔ 𝐺:(𝐴(,)𝐵)⟶ℝ))
15310, 152mpbird 245 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 (𝜑𝐺 ∈ ((𝐴(,)𝐵)–cn→ℝ))
154153ad2antrr 757 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → 𝐺 ∈ ((𝐴(,)𝐵)–cn→ℝ))
155 rescncf 22436 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ((𝑧[,]𝑋) ⊆ (𝐴(,)𝐵) → (𝐺 ∈ ((𝐴(,)𝐵)–cn→ℝ) → (𝐺 ↾ (𝑧[,]𝑋)) ∈ ((𝑧[,]𝑋)–cn→ℝ)))
156142, 154, 155sylc 62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (𝐺 ↾ (𝑧[,]𝑋)) ∈ ((𝑧[,]𝑋)–cn→ℝ))
157143a1i 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ℝ ⊆ ℂ)
158146ad2antrr 757 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → 𝐺:(𝐴(,)𝐵)⟶ℂ)
159126a1i 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (𝐴(,)𝐵) ⊆ ℝ)
160142, 126syl6ss 3576 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (𝑧[,]𝑋) ⊆ ℝ)
16147tgioo2 22343 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (topGen‘ran (,)) = ((TopOpen‘ℂfld) ↾t ℝ)
16247, 161dvres 23395 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (((ℝ ⊆ ℂ ∧ 𝐺:(𝐴(,)𝐵)⟶ℂ) ∧ ((𝐴(,)𝐵) ⊆ ℝ ∧ (𝑧[,]𝑋) ⊆ ℝ)) → (ℝ D (𝐺 ↾ (𝑧[,]𝑋))) = ((ℝ D 𝐺) ↾ ((int‘(topGen‘ran (,)))‘(𝑧[,]𝑋))))
163157, 158, 159, 160, 162syl22anc 1318 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (ℝ D (𝐺 ↾ (𝑧[,]𝑋))) = ((ℝ D 𝐺) ↾ ((int‘(topGen‘ran (,)))‘(𝑧[,]𝑋))))
164 iccntr 22361 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ((𝑧 ∈ ℝ ∧ 𝑋 ∈ ℝ) → ((int‘(topGen‘ran (,)))‘(𝑧[,]𝑋)) = (𝑧(,)𝑋))
165128, 129, 164syl2anc 690 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ((int‘(topGen‘ran (,)))‘(𝑧[,]𝑋)) = (𝑧(,)𝑋))
166165reseq2d 5301 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ((ℝ D 𝐺) ↾ ((int‘(topGen‘ran (,)))‘(𝑧[,]𝑋))) = ((ℝ D 𝐺) ↾ (𝑧(,)𝑋)))
167163, 166eqtrd 2640 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (ℝ D (𝐺 ↾ (𝑧[,]𝑋))) = ((ℝ D 𝐺) ↾ (𝑧(,)𝑋)))
168167dmeqd 5232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → dom (ℝ D (𝐺 ↾ (𝑧[,]𝑋))) = dom ((ℝ D 𝐺) ↾ (𝑧(,)𝑋)))
169 ioossicc 12083 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (𝑧(,)𝑋) ⊆ (𝑧[,]𝑋)
170169, 142syl5ss 3575 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (𝑧(,)𝑋) ⊆ (𝐴(,)𝐵))
171148ad2antrr 757 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → dom (ℝ D 𝐺) = (𝐴(,)𝐵))
172170, 171sseqtr4d 3601 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (𝑧(,)𝑋) ⊆ dom (ℝ D 𝐺))
173 ssdmres 5324 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((𝑧(,)𝑋) ⊆ dom (ℝ D 𝐺) ↔ dom ((ℝ D 𝐺) ↾ (𝑧(,)𝑋)) = (𝑧(,)𝑋))
174172, 173sylib 206 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → dom ((ℝ D 𝐺) ↾ (𝑧(,)𝑋)) = (𝑧(,)𝑋))
175168, 174eqtrd 2640 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → dom (ℝ D (𝐺 ↾ (𝑧[,]𝑋))) = (𝑧(,)𝑋))
176127rexrd 9942 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑧 ∈ ℝ*)
17793adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑋 ∈ ℝ*)
17842adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑋 ∈ ℝ)
179127, 178, 132ltled 10033 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑧𝑋)
180 ubicc2 12113 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ((𝑧 ∈ ℝ*𝑋 ∈ ℝ*𝑧𝑋) → 𝑋 ∈ (𝑧[,]𝑋))
181176, 177, 179, 180syl3anc 1317 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑋 ∈ (𝑧[,]𝑋))
182 fvres 6099 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (𝑋 ∈ (𝑧[,]𝑋) → ((𝐺 ↾ (𝑧[,]𝑋))‘𝑋) = (𝐺𝑋))
183181, 182syl 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐺 ↾ (𝑧[,]𝑋))‘𝑋) = (𝐺𝑋))
184 lbicc2 12112 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ((𝑧 ∈ ℝ*𝑋 ∈ ℝ*𝑧𝑋) → 𝑧 ∈ (𝑧[,]𝑋))
185176, 177, 179, 184syl3anc 1317 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑧 ∈ (𝑧[,]𝑋))
186 fvres 6099 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (𝑧 ∈ (𝑧[,]𝑋) → ((𝐺 ↾ (𝑧[,]𝑋))‘𝑧) = (𝐺𝑧))
187185, 186syl 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐺 ↾ (𝑧[,]𝑋))‘𝑧) = (𝐺𝑧))
188183, 187eqeq12d 2621 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (((𝐺 ↾ (𝑧[,]𝑋))‘𝑋) = ((𝐺 ↾ (𝑧[,]𝑋))‘𝑧) ↔ (𝐺𝑋) = (𝐺𝑧)))
189188biimpar 500 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ((𝐺 ↾ (𝑧[,]𝑋))‘𝑋) = ((𝐺 ↾ (𝑧[,]𝑋))‘𝑧))
190189eqcomd 2612 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ((𝐺 ↾ (𝑧[,]𝑋))‘𝑧) = ((𝐺 ↾ (𝑧[,]𝑋))‘𝑋))
191128, 129, 133, 156, 175, 190rolle 23471 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ∃𝑤 ∈ (𝑧(,)𝑋)((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) = 0)
192167fveq1d 6087 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) = (((ℝ D 𝐺) ↾ (𝑧(,)𝑋))‘𝑤))
193 fvres 6099 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (𝑤 ∈ (𝑧(,)𝑋) → (((ℝ D 𝐺) ↾ (𝑧(,)𝑋))‘𝑤) = ((ℝ D 𝐺)‘𝑤))
194192, 193sylan9eq 2660 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) ∧ 𝑤 ∈ (𝑧(,)𝑋)) → ((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) = ((ℝ D 𝐺)‘𝑤))
195 dvf 23391 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 (ℝ D 𝐺):dom (ℝ D 𝐺)⟶ℂ
196148feq2d 5927 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 (𝜑 → ((ℝ D 𝐺):dom (ℝ D 𝐺)⟶ℂ ↔ (ℝ D 𝐺):(𝐴(,)𝐵)⟶ℂ))
197195, 196mpbii 221 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 (𝜑 → (ℝ D 𝐺):(𝐴(,)𝐵)⟶ℂ)
198197ad2antrr 757 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (ℝ D 𝐺):(𝐴(,)𝐵)⟶ℂ)
199 ffn 5941 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ((ℝ D 𝐺):(𝐴(,)𝐵)⟶ℂ → (ℝ D 𝐺) Fn (𝐴(,)𝐵))
200198, 199syl 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (ℝ D 𝐺) Fn (𝐴(,)𝐵))
201200adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) ∧ 𝑤 ∈ (𝑧(,)𝑋)) → (ℝ D 𝐺) Fn (𝐴(,)𝐵))
202170sselda 3564 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) ∧ 𝑤 ∈ (𝑧(,)𝑋)) → 𝑤 ∈ (𝐴(,)𝐵))
203 fnfvelrn 6246 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((ℝ D 𝐺) Fn (𝐴(,)𝐵) ∧ 𝑤 ∈ (𝐴(,)𝐵)) → ((ℝ D 𝐺)‘𝑤) ∈ ran (ℝ D 𝐺))
204201, 202, 203syl2anc 690 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) ∧ 𝑤 ∈ (𝑧(,)𝑋)) → ((ℝ D 𝐺)‘𝑤) ∈ ran (ℝ D 𝐺))
205194, 204eqeltrd 2684 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ((((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) ∧ 𝑤 ∈ (𝑧(,)𝑋)) → ((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) ∈ ran (ℝ D 𝐺))
206 eleq1 2672 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) = 0 → (((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) ∈ ran (ℝ D 𝐺) ↔ 0 ∈ ran (ℝ D 𝐺)))
207205, 206syl5ibcom 233 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ((((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) ∧ 𝑤 ∈ (𝑧(,)𝑋)) → (((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) = 0 → 0 ∈ ran (ℝ D 𝐺)))
208207rexlimdva 3009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (∃𝑤 ∈ (𝑧(,)𝑋)((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) = 0 → 0 ∈ ran (ℝ D 𝐺)))
209191, 208mpd 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → 0 ∈ ran (ℝ D 𝐺))
210209ex 448 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐺𝑋) = (𝐺𝑧) → 0 ∈ ran (ℝ D 𝐺)))
211125, 210sylbid 228 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (((𝐺𝑋) − (𝐺𝑧)) = 0 → 0 ∈ ran (ℝ D 𝐺)))
212211necon3bd 2792 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (¬ 0 ∈ ran (ℝ D 𝐺) → ((𝐺𝑋) − (𝐺𝑧)) ≠ 0))
213119, 212mpd 15 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐺𝑋) − (𝐺𝑧)) ≠ 0)
214213ralrimiva 2945 . . . . . . . . . . . . . . . . . . . . . . 23 (𝜑 → ∀𝑧 ∈ (𝐴(,)𝑋)((𝐺𝑋) − (𝐺𝑧)) ≠ 0)
215214adantr 479 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ∀𝑧 ∈ (𝐴(,)𝑋)((𝐺𝑋) − (𝐺𝑧)) ≠ 0)
216 fveq2 6085 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑧 = 𝑅 → (𝐺𝑧) = (𝐺𝑅))
217216oveq2d 6540 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑧 = 𝑅 → ((𝐺𝑋) − (𝐺𝑧)) = ((𝐺𝑋) − (𝐺𝑅)))
218217neeq1d 2837 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑧 = 𝑅 → (((𝐺𝑋) − (𝐺𝑧)) ≠ 0 ↔ ((𝐺𝑋) − (𝐺𝑅)) ≠ 0))
219218rspcv 3274 . . . . . . . . . . . . . . . . . . . . . 22 (𝑅 ∈ (𝐴(,)𝑋) → (∀𝑧 ∈ (𝐴(,)𝑋)((𝐺𝑋) − (𝐺𝑧)) ≠ 0 → ((𝐺𝑋) − (𝐺𝑅)) ≠ 0))
22097, 215, 219sylc 62 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((𝐺𝑋) − (𝐺𝑅)) ≠ 0)
221112, 117, 220divcld 10647 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) ∈ ℂ)
22225adantr 479 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐶 ∈ ℂ)
223221, 222subcld 10240 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶) ∈ ℂ)
224223abscld 13966 . . . . . . . . . . . . . . . . . 18 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)) ∈ ℝ)
22529adantr 479 . . . . . . . . . . . . . . . . . 18 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐸 ∈ ℝ)
226102adantr 479 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐷 ∈ ℝ*)
227103adantr 479 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑋 < 𝐷)
228 iccssioo 12066 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝐴 ∈ ℝ*𝐷 ∈ ℝ*) ∧ (𝐴 < 𝑅𝑋 < 𝐷)) → (𝑅[,]𝑋) ⊆ (𝐴(,)𝐷))
22992, 226, 84, 227, 228syl22anc 1318 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅[,]𝑋) ⊆ (𝐴(,)𝐷))
2305adantr 479 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐴(,)𝐷) ⊆ (𝐴(,)𝐵))
231229, 230sstrd 3574 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅[,]𝑋) ⊆ (𝐴(,)𝐵))
232 fss 5952 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝐹:(𝐴(,)𝐵)⟶ℝ ∧ ℝ ⊆ ℂ) → 𝐹:(𝐴(,)𝐵)⟶ℂ)
2331, 143, 232sylancl 692 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝜑𝐹:(𝐴(,)𝐵)⟶ℂ)
234 lhop1.if . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝜑 → dom (ℝ D 𝐹) = (𝐴(,)𝐵))
235 dvcn 23404 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((ℝ ⊆ ℂ ∧ 𝐹:(𝐴(,)𝐵)⟶ℂ ∧ (𝐴(,)𝐵) ⊆ ℝ) ∧ dom (ℝ D 𝐹) = (𝐴(,)𝐵)) → 𝐹 ∈ ((𝐴(,)𝐵)–cn→ℂ))
236144, 233, 147, 234, 235syl31anc 1320 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝜑𝐹 ∈ ((𝐴(,)𝐵)–cn→ℂ))
237 cncffvrn 22437 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((ℝ ⊆ ℂ ∧ 𝐹 ∈ ((𝐴(,)𝐵)–cn→ℂ)) → (𝐹 ∈ ((𝐴(,)𝐵)–cn→ℝ) ↔ 𝐹:(𝐴(,)𝐵)⟶ℝ))
238143, 236, 237sylancr 693 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝜑 → (𝐹 ∈ ((𝐴(,)𝐵)–cn→ℝ) ↔ 𝐹:(𝐴(,)𝐵)⟶ℝ))
2391, 238mpbird 245 . . . . . . . . . . . . . . . . . . . . . . 23 (𝜑𝐹 ∈ ((𝐴(,)𝐵)–cn→ℝ))
240239adantr 479 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐹 ∈ ((𝐴(,)𝐵)–cn→ℝ))
241 rescncf 22436 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑅[,]𝑋) ⊆ (𝐴(,)𝐵) → (𝐹 ∈ ((𝐴(,)𝐵)–cn→ℝ) → (𝐹 ↾ (𝑅[,]𝑋)) ∈ ((𝑅[,]𝑋)–cn→ℝ)))
242231, 240, 241sylc 62 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐹 ↾ (𝑅[,]𝑋)) ∈ ((𝑅[,]𝑋)–cn→ℝ))
243153adantr 479 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐺 ∈ ((𝐴(,)𝐵)–cn→ℝ))
244 rescncf 22436 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑅[,]𝑋) ⊆ (𝐴(,)𝐵) → (𝐺 ∈ ((𝐴(,)𝐵)–cn→ℝ) → (𝐺 ↾ (𝑅[,]𝑋)) ∈ ((𝑅[,]𝑋)–cn→ℝ)))
245231, 243, 244sylc 62 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐺 ↾ (𝑅[,]𝑋)) ∈ ((𝑅[,]𝑋)–cn→ℝ))
246143a1i 11 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ℝ ⊆ ℂ)
247233adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐹:(𝐴(,)𝐵)⟶ℂ)
248126a1i 11 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐴(,)𝐵) ⊆ ℝ)
249 iccssre 12079 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝑅 ∈ ℝ ∧ 𝑋 ∈ ℝ) → (𝑅[,]𝑋) ⊆ ℝ)
25057, 85, 249syl2anc 690 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅[,]𝑋) ⊆ ℝ)
25147, 161dvres 23395 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((ℝ ⊆ ℂ ∧ 𝐹:(𝐴(,)𝐵)⟶ℂ) ∧ ((𝐴(,)𝐵) ⊆ ℝ ∧ (𝑅[,]𝑋) ⊆ ℝ)) → (ℝ D (𝐹 ↾ (𝑅[,]𝑋))) = ((ℝ D 𝐹) ↾ ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋))))
252246, 247, 248, 250, 251syl22anc 1318 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (ℝ D (𝐹 ↾ (𝑅[,]𝑋))) = ((ℝ D 𝐹) ↾ ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋))))
253 iccntr 22361 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝑅 ∈ ℝ ∧ 𝑋 ∈ ℝ) → ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋)) = (𝑅(,)𝑋))
25457, 85, 253syl2anc 690 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋)) = (𝑅(,)𝑋))
255254reseq2d 5301 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((ℝ D 𝐹) ↾ ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋))) = ((ℝ D 𝐹) ↾ (𝑅(,)𝑋)))
256252, 255eqtrd 2640 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (ℝ D (𝐹 ↾ (𝑅[,]𝑋))) = ((ℝ D 𝐹) ↾ (𝑅(,)𝑋)))
257256dmeqd 5232 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom (ℝ D (𝐹 ↾ (𝑅[,]𝑋))) = dom ((ℝ D 𝐹) ↾ (𝑅(,)𝑋)))
25852, 57, 84ltled 10033 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐴𝑅)
259 iooss1 12034 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝐴 ∈ ℝ*𝐴𝑅) → (𝑅(,)𝑋) ⊆ (𝐴(,)𝑋))
26092, 258, 259syl2anc 690 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(,)𝑋) ⊆ (𝐴(,)𝑋))
261104adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑋𝐷)
262 iooss2 12035 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝐷 ∈ ℝ*𝑋𝐷) → (𝐴(,)𝑋) ⊆ (𝐴(,)𝐷))
263226, 261, 262syl2anc 690 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐴(,)𝑋) ⊆ (𝐴(,)𝐷))
264260, 263sstrd 3574 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(,)𝑋) ⊆ (𝐴(,)𝐷))
265264, 230sstrd 3574 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(,)𝑋) ⊆ (𝐴(,)𝐵))
266234adantr 479 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom (ℝ D 𝐹) = (𝐴(,)𝐵))
267265, 266sseqtr4d 3601 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(,)𝑋) ⊆ dom (ℝ D 𝐹))
268 ssdmres 5324 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑅(,)𝑋) ⊆ dom (ℝ D 𝐹) ↔ dom ((ℝ D 𝐹) ↾ (𝑅(,)𝑋)) = (𝑅(,)𝑋))
269267, 268sylib 206 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom ((ℝ D 𝐹) ↾ (𝑅(,)𝑋)) = (𝑅(,)𝑋))
270257, 269eqtrd 2640 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom (ℝ D (𝐹 ↾ (𝑅[,]𝑋))) = (𝑅(,)𝑋))
271146adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐺:(𝐴(,)𝐵)⟶ℂ)
27247, 161dvres 23395 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((ℝ ⊆ ℂ ∧ 𝐺:(𝐴(,)𝐵)⟶ℂ) ∧ ((𝐴(,)𝐵) ⊆ ℝ ∧ (𝑅[,]𝑋) ⊆ ℝ)) → (ℝ D (𝐺 ↾ (𝑅[,]𝑋))) = ((ℝ D 𝐺) ↾ ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋))))
273246, 271, 248, 250, 272syl22anc 1318 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (ℝ D (𝐺 ↾ (𝑅[,]𝑋))) = ((ℝ D 𝐺) ↾ ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋))))
274254reseq2d 5301 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((ℝ D 𝐺) ↾ ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋))) = ((ℝ D 𝐺) ↾ (𝑅(,)𝑋)))
275273, 274eqtrd 2640 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (ℝ D (𝐺 ↾ (𝑅[,]𝑋))) = ((ℝ D 𝐺) ↾ (𝑅(,)𝑋)))
276275dmeqd 5232 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom (ℝ D (𝐺 ↾ (𝑅[,]𝑋))) = dom ((ℝ D 𝐺) ↾ (𝑅(,)𝑋)))
277148adantr 479 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom (ℝ D 𝐺) = (𝐴(,)𝐵))
278265, 277sseqtr4d 3601 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(,)𝑋) ⊆ dom (ℝ D 𝐺))
279 ssdmres 5324 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑅(,)𝑋) ⊆ dom (ℝ D 𝐺) ↔ dom ((ℝ D 𝐺) ↾ (𝑅(,)𝑋)) = (𝑅(,)𝑋))
280278, 279sylib 206 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom ((ℝ D 𝐺) ↾ (𝑅(,)𝑋)) = (𝑅(,)𝑋))
281276, 280eqtrd 2640 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom (ℝ D (𝐺 ↾ (𝑅[,]𝑋))) = (𝑅(,)𝑋))
28257, 85, 91, 242, 245, 270, 281cmvth 23472 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ∃𝑤 ∈ (𝑅(,)𝑋)((((𝐹 ↾ (𝑅[,]𝑋))‘𝑋) − ((𝐹 ↾ (𝑅[,]𝑋))‘𝑅)) · ((ℝ D (𝐺 ↾ (𝑅[,]𝑋)))‘𝑤)) = ((((𝐺 ↾ (𝑅[,]𝑋))‘𝑋) − ((𝐺 ↾ (𝑅[,]𝑋))‘𝑅)) · ((ℝ D (𝐹 ↾ (𝑅[,]𝑋)))‘𝑤)))
28357rexrd 9942 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ ℝ*)
284283adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑅 ∈ ℝ*)
28593ad2antrr 757 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑋 ∈ ℝ*)
28657, 85, 91ltled 10033 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅𝑋)
287286adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑅𝑋)
288 ubicc2 12113 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝑅 ∈ ℝ*𝑋 ∈ ℝ*𝑅𝑋) → 𝑋 ∈ (𝑅[,]𝑋))
289284, 285, 287, 288syl3anc 1317 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑋 ∈ (𝑅[,]𝑋))
290 fvres 6099 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝑋 ∈ (𝑅[,]𝑋) → ((𝐹 ↾ (𝑅[,]𝑋))‘𝑋) = (𝐹𝑋))
291289, 290syl 17 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐹 ↾ (𝑅[,]𝑋))‘𝑋) = (𝐹𝑋))
292 lbicc2 12112 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝑅 ∈ ℝ*𝑋 ∈ ℝ*𝑅𝑋) → 𝑅 ∈ (𝑅[,]𝑋))
293284, 285, 287, 292syl3anc 1317 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑅 ∈ (𝑅[,]𝑋))
294 fvres 6099 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝑅 ∈ (𝑅[,]𝑋) → ((𝐹 ↾ (𝑅[,]𝑋))‘𝑅) = (𝐹𝑅))
295293, 294syl 17 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐹 ↾ (𝑅[,]𝑋))‘𝑅) = (𝐹𝑅))
296291, 295oveq12d 6542 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (((𝐹 ↾ (𝑅[,]𝑋))‘𝑋) − ((𝐹 ↾ (𝑅[,]𝑋))‘𝑅)) = ((𝐹𝑋) − (𝐹𝑅)))
297275fveq1d 6087 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((ℝ D (𝐺 ↾ (𝑅[,]𝑋)))‘𝑤) = (((ℝ D 𝐺) ↾ (𝑅(,)𝑋))‘𝑤))
298 fvres 6099 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑤 ∈ (𝑅(,)𝑋) → (((ℝ D 𝐺) ↾ (𝑅(,)𝑋))‘𝑤) = ((ℝ D 𝐺)‘𝑤))
299297, 298sylan9eq 2660 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((ℝ D (𝐺 ↾ (𝑅[,]𝑋)))‘𝑤) = ((ℝ D 𝐺)‘𝑤))
300296, 299oveq12d 6542 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((((𝐹 ↾ (𝑅[,]𝑋))‘𝑋) − ((𝐹 ↾ (𝑅[,]𝑋))‘𝑅)) · ((ℝ D (𝐺 ↾ (𝑅[,]𝑋)))‘𝑤)) = (((𝐹𝑋) − (𝐹𝑅)) · ((ℝ D 𝐺)‘𝑤)))
301 fvres 6099 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝑋 ∈ (𝑅[,]𝑋) → ((𝐺 ↾ (𝑅[,]𝑋))‘𝑋) = (𝐺𝑋))
302289, 301syl 17 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐺 ↾ (𝑅[,]𝑋))‘𝑋) = (𝐺𝑋))
303 fvres 6099 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝑅 ∈ (𝑅[,]𝑋) → ((𝐺 ↾ (𝑅[,]𝑋))‘𝑅) = (𝐺𝑅))
304293, 303syl 17 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐺 ↾ (𝑅[,]𝑋))‘𝑅) = (𝐺𝑅))
305302, 304oveq12d 6542 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (((𝐺 ↾ (𝑅[,]𝑋))‘𝑋) − ((𝐺 ↾ (𝑅[,]𝑋))‘𝑅)) = ((𝐺𝑋) − (𝐺𝑅)))
306256fveq1d 6087 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((ℝ D (𝐹 ↾ (𝑅[,]𝑋)))‘𝑤) = (((ℝ D 𝐹) ↾ (𝑅(,)𝑋))‘𝑤))
307 fvres 6099 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝑤 ∈ (𝑅(,)𝑋) → (((ℝ D 𝐹) ↾ (𝑅(,)𝑋))‘𝑤) = ((ℝ D 𝐹)‘𝑤))
308306, 307sylan9eq 2660 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((ℝ D (𝐹 ↾ (𝑅[,]𝑋)))‘𝑤) = ((ℝ D 𝐹)‘𝑤))
309305, 308oveq12d 6542 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((((𝐺 ↾ (𝑅[,]𝑋))‘𝑋) − ((𝐺 ↾ (𝑅[,]𝑋))‘𝑅)) · ((ℝ D (𝐹 ↾ (𝑅[,]𝑋)))‘𝑤)) = (((𝐺𝑋) − (𝐺𝑅)) · ((ℝ D 𝐹)‘𝑤)))
310117adantr 479 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐺𝑋) − (𝐺𝑅)) ∈ ℂ)
311 dvf 23391 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (ℝ D 𝐹):dom (ℝ D 𝐹)⟶ℂ
312234feq2d 5927 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝜑 → ((ℝ D 𝐹):dom (ℝ D 𝐹)⟶ℂ ↔ (ℝ D 𝐹):(𝐴(,)𝐵)⟶ℂ))
313311, 312mpbii 221 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝜑 → (ℝ D 𝐹):(𝐴(,)𝐵)⟶ℂ)
314313ad2antrr 757 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (ℝ D 𝐹):(𝐴(,)𝐵)⟶ℂ)
315265sselda 3564 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑤 ∈ (𝐴(,)𝐵))
316314, 315ffvelrnd 6250 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((ℝ D 𝐹)‘𝑤) ∈ ℂ)
317310, 316mulcomd 9914 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (((𝐺𝑋) − (𝐺𝑅)) · ((ℝ D 𝐹)‘𝑤)) = (((ℝ D 𝐹)‘𝑤) · ((𝐺𝑋) − (𝐺𝑅))))
318309, 317eqtrd 2640 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((((𝐺 ↾ (𝑅[,]𝑋))‘𝑋) − ((𝐺 ↾ (𝑅[,]𝑋))‘𝑅)) · ((ℝ D (𝐹 ↾ (𝑅[,]𝑋)))‘𝑤)) = (((ℝ D 𝐹)‘𝑤) · ((𝐺𝑋) − (𝐺𝑅))))
319300, 318eqeq12d 2621 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (((((𝐹 ↾ (𝑅[,]𝑋))‘𝑋) − ((𝐹 ↾ (𝑅[,]𝑋))‘𝑅)) · ((ℝ D (𝐺 ↾ (𝑅[,]𝑋)))‘𝑤)) = ((((𝐺 ↾ (𝑅[,]𝑋))‘𝑋) − ((𝐺 ↾ (𝑅[,]𝑋))‘𝑅)) · ((ℝ D (𝐹 ↾ (𝑅[,]𝑋)))‘𝑤)) ↔ (((𝐹𝑋) − (𝐹𝑅)) · ((ℝ D 𝐺)‘𝑤)) = (((ℝ D 𝐹)‘𝑤) · ((𝐺𝑋) − (𝐺𝑅)))))
320112adantr 479 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐹𝑋) − (𝐹𝑅)) ∈ ℂ)
321197ad2antrr 757 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (ℝ D 𝐺):(𝐴(,)𝐵)⟶ℂ)
322321, 315ffvelrnd 6250 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((ℝ D 𝐺)‘𝑤) ∈ ℂ)
323220adantr 479 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐺𝑋) − (𝐺𝑅)) ≠ 0)
324118ad2antrr 757 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ¬ 0 ∈ ran (ℝ D 𝐺))
325321, 199syl 17 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (ℝ D 𝐺) Fn (𝐴(,)𝐵))
326325, 315, 203syl2anc 690 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((ℝ D 𝐺)‘𝑤) ∈ ran (ℝ D 𝐺))
327 eleq1 2672 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((ℝ D 𝐺)‘𝑤) = 0 → (((ℝ D 𝐺)‘𝑤) ∈ ran (ℝ D 𝐺) ↔ 0 ∈ ran (ℝ D 𝐺)))
328326, 327syl5ibcom 233 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (((ℝ D 𝐺)‘𝑤) = 0 → 0 ∈ ran (ℝ D 𝐺)))
329328necon3bd 2792 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (¬ 0 ∈ ran (ℝ D 𝐺) → ((ℝ D 𝐺)‘𝑤) ≠ 0))
330324, 329mpd 15 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((ℝ D 𝐺)‘𝑤) ≠ 0)
331320, 310, 316, 322, 323, 330divmuleqd 10693 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) = (((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) ↔ (((𝐹𝑋) − (𝐹𝑅)) · ((ℝ D 𝐺)‘𝑤)) = (((ℝ D 𝐹)‘𝑤) · ((𝐺𝑋) − (𝐺𝑅)))))
332319, 331bitr4d 269 . . . . . . . . . . . . . . . . . . . . 21 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (((((𝐹 ↾ (𝑅[,]𝑋))‘𝑋) − ((𝐹 ↾ (𝑅[,]𝑋))‘𝑅)) · ((ℝ D (𝐺 ↾ (𝑅[,]𝑋)))‘𝑤)) = ((((𝐺 ↾ (𝑅[,]𝑋))‘𝑋) − ((𝐺 ↾ (𝑅[,]𝑋))‘𝑅)) · ((ℝ D (𝐹 ↾ (𝑅[,]𝑋)))‘𝑤)) ↔ (((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) = (((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤))))
333332rexbidva 3027 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (∃𝑤 ∈ (𝑅(,)𝑋)((((𝐹 ↾ (𝑅[,]𝑋))‘𝑋) − ((𝐹 ↾ (𝑅[,]𝑋))‘𝑅)) · ((ℝ D (𝐺 ↾ (𝑅[,]𝑋)))‘𝑤)) = ((((𝐺 ↾ (𝑅[,]𝑋))‘𝑋) − ((𝐺 ↾ (𝑅[,]𝑋))‘𝑅)) · ((ℝ D (𝐹 ↾ (𝑅[,]𝑋)))‘𝑤)) ↔ ∃𝑤 ∈ (𝑅(,)𝑋)(((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) = (((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤))))
334282, 333mpbid 220 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ∃𝑤 ∈ (𝑅(,)𝑋)(((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) = (((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)))
335264sselda 3564 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑤 ∈ (𝐴(,)𝐷))
336 lhop1lem.t . . . . . . . . . . . . . . . . . . . . . . 23 (𝜑 → ∀𝑡 ∈ (𝐴(,)𝐷)(abs‘((((ℝ D 𝐹)‘𝑡) / ((ℝ D 𝐺)‘𝑡)) − 𝐶)) < 𝐸)
337336ad2antrr 757 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ∀𝑡 ∈ (𝐴(,)𝐷)(abs‘((((ℝ D 𝐹)‘𝑡) / ((ℝ D 𝐺)‘𝑡)) − 𝐶)) < 𝐸)
338 fveq2 6085 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝑡 = 𝑤 → ((ℝ D 𝐹)‘𝑡) = ((ℝ D 𝐹)‘𝑤))
339 fveq2 6085 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝑡 = 𝑤 → ((ℝ D 𝐺)‘𝑡) = ((ℝ D 𝐺)‘𝑤))
340338, 339oveq12d 6542 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝑡 = 𝑤 → (((ℝ D 𝐹)‘𝑡) / ((ℝ D 𝐺)‘𝑡)) = (((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)))
341340oveq1d 6539 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑡 = 𝑤 → ((((ℝ D 𝐹)‘𝑡) / ((ℝ D 𝐺)‘𝑡)) − 𝐶) = ((((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) − 𝐶))
342341fveq2d 6089 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑡 = 𝑤 → (abs‘((((ℝ D 𝐹)‘𝑡) / ((ℝ D 𝐺)‘𝑡)) − 𝐶)) = (abs‘((((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) − 𝐶)))
343342breq1d 4584 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑡 = 𝑤 → ((abs‘((((ℝ D 𝐹)‘𝑡) / ((ℝ D 𝐺)‘𝑡)) − 𝐶)) < 𝐸 ↔ (abs‘((((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) − 𝐶)) < 𝐸))
344343rspcv 3274 . . . . . . . . . . . . . . . . . . . . . 22 (𝑤 ∈ (𝐴(,)𝐷) → (∀𝑡 ∈ (𝐴(,)𝐷)(abs‘((((ℝ D 𝐹)‘𝑡) / ((ℝ D 𝐺)‘𝑡)) − 𝐶)) < 𝐸 → (abs‘((((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) − 𝐶)) < 𝐸))
345335, 337, 344sylc 62 . . . . . . . . . . . . . . . . . . . . 21 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (abs‘((((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) − 𝐶)) < 𝐸)
346 oveq1 6531 . . . . . . . . . . . . . . . . . . . . . . 23 ((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) = (((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) → ((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶) = ((((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) − 𝐶))
347346fveq2d 6089 . . . . . . . . . . . . . . . . . . . . . 22 ((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) = (((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) → (abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)) = (abs‘((((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) − 𝐶)))
348347breq1d 4584 . . . . . . . . . . . . . . . . . . . . 21 ((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) = (((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) → ((abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)) < 𝐸 ↔ (abs‘((((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) − 𝐶)) < 𝐸))
349345, 348syl5ibrcom 235 . . . . . . . . . . . . . . . . . . . 20 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) = (((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) → (abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)) < 𝐸))
350349rexlimdva 3009 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (∃𝑤 ∈ (𝑅(,)𝑋)(((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) = (((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) → (abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)) < 𝐸))
351334, 350mpd 15 . . . . . . . . . . . . . . . . . 18 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)) < 𝐸)
352224, 225, 351ltled 10033 . . . . . . . . . . . . . . . . 17 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)) ≤ 𝐸)
353 fveq2 6085 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑢 = 𝑅 → (𝐹𝑢) = (𝐹𝑅))
354353oveq2d 6540 . . . . . . . . . . . . . . . . . . . . . 22 (𝑢 = 𝑅 → ((𝐹𝑋) − (𝐹𝑢)) = ((𝐹𝑋) − (𝐹𝑅)))
355 fveq2 6085 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑢 = 𝑅 → (𝐺𝑢) = (𝐺𝑅))
356355oveq2d 6540 . . . . . . . . . . . . . . . . . . . . . 22 (𝑢 = 𝑅 → ((𝐺𝑋) − (𝐺𝑢)) = ((𝐺𝑋) − (𝐺𝑅)))
357354, 356oveq12d 6542 . . . . . . . . . . . . . . . . . . . . 21 (𝑢 = 𝑅 → (((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) = (((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))))
358357oveq1d 6539 . . . . . . . . . . . . . . . . . . . 20 (𝑢 = 𝑅 → ((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶) = ((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶))
359358fveq2d 6089 . . . . . . . . . . . . . . . . . . 19 (𝑢 = 𝑅 → (abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) = (abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)))
360359breq1d 4584 . . . . . . . . . . . . . . . . . 18 (𝑢 = 𝑅 → ((abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸 ↔ (abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)) ≤ 𝐸))
361360rspcev 3278 . . . . . . . . . . . . . . . . 17 ((𝑅 ∈ ((𝐴(ball‘(abs ∘ − ))𝑟) ∩ (𝐴(,)𝑋)) ∧ (abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)) ≤ 𝐸) → ∃𝑢 ∈ ((𝐴(ball‘(abs ∘ − ))𝑟) ∩ (𝐴(,)𝑋))(abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸)
36298, 352, 361syl2anc 690 . . . . . . . . . . . . . . . 16 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ∃𝑢 ∈ ((𝐴(ball‘(abs ∘ − ))𝑟) ∩ (𝐴(,)𝑋))(abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸)
363362adantlr 746 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ∃𝑢 ∈ ((𝐴(ball‘(abs ∘ − ))𝑟) ∩ (𝐴(,)𝑋))(abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸)
364 ssrin 3796 . . . . . . . . . . . . . . . . 17 ((𝐴(ball‘(abs ∘ − ))𝑟) ⊆ 𝑣 → ((𝐴(ball‘(abs ∘ − ))𝑟) ∩ (𝐴(,)𝑋)) ⊆ (𝑣 ∩ (𝐴(,)𝑋)))
365 lbioo 12030 . . . . . . . . . . . . . . . . . . . 20 ¬ 𝐴 ∈ (𝐴(,)𝑋)
366 disjsn 4188 . . . . . . . . . . . . . . . . . . . 20 (((𝐴(,)𝑋) ∩ {𝐴}) = ∅ ↔ ¬ 𝐴 ∈ (𝐴(,)𝑋))
367365, 366mpbir 219 . . . . . . . . . . . . . . . . . . 19 ((𝐴(,)𝑋) ∩ {𝐴}) = ∅
368 disj3 3969 . . . . . . . . . . . . . . . . . . 19 (((𝐴(,)𝑋) ∩ {𝐴}) = ∅ ↔ (𝐴(,)𝑋) = ((𝐴(,)𝑋) ∖ {𝐴}))
369367, 368mpbi 218 . . . . . . . . . . . . . . . . . 18 (𝐴(,)𝑋) = ((𝐴(,)𝑋) ∖ {𝐴})
370369ineq2i 3769 . . . . . . . . . . . . . . . . 17 (𝑣 ∩ (𝐴(,)𝑋)) = (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))
371364, 370syl6sseq 3610 . . . . . . . . . . . . . . . 16 ((𝐴(ball‘(abs ∘ − ))𝑟) ⊆ 𝑣 → ((𝐴(ball‘(abs ∘ − ))𝑟) ∩ (𝐴(,)𝑋)) ⊆ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})))
372 ssrexv 3626 . . . . . . . . . . . . . . . 16 (((𝐴(ball‘(abs ∘ − ))𝑟) ∩ (𝐴(,)𝑋)) ⊆ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})) → (∃𝑢 ∈ ((𝐴(ball‘(abs ∘ − ))𝑟) ∩ (𝐴(,)𝑋))(abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸 → ∃𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))(abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸))
373371, 372syl 17 . . . . . . . . . . . . . . 15 ((𝐴(ball‘(abs ∘ − ))𝑟) ⊆ 𝑣 → (∃𝑢 ∈ ((𝐴(ball‘(abs ∘ − ))𝑟) ∩ (𝐴(,)𝑋))(abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸 → ∃𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))(abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸))
374363, 373syl5com 31 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((𝐴(ball‘(abs ∘ − ))𝑟) ⊆ 𝑣 → ∃𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))(abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸))
375374anassrs 677 . . . . . . . . . . . . 13 ((((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) ∧ 𝑟 ∈ ℝ+) ∧ 𝑟 < (𝑋𝐴)) → ((𝐴(ball‘(abs ∘ − ))𝑟) ⊆ 𝑣 → ∃𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))(abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸))
376375expimpd 626 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) ∧ 𝑟 ∈ ℝ+) → ((𝑟 < (𝑋𝐴) ∧ (𝐴(ball‘(abs ∘ − ))𝑟) ⊆ 𝑣) → ∃𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))(abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸))
377376rexlimdva 3009 . . . . . . . . . . 11 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → (∃𝑟 ∈ ℝ+ (𝑟 < (𝑋𝐴) ∧ (𝐴(ball‘(abs ∘ − ))𝑟) ⊆ 𝑣) → ∃𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))(abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸))
37850, 377mpd 15 . . . . . . . . . 10 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → ∃𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))(abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸)
379 inss2 3792 . . . . . . . . . . . . . 14 (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})) ⊆ ((𝐴(,)𝑋) ∖ {𝐴})
380 difss 3695 . . . . . . . . . . . . . 14 ((𝐴(,)𝑋) ∖ {𝐴}) ⊆ (𝐴(,)𝑋)
381379, 380sstri 3573 . . . . . . . . . . . . 13 (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})) ⊆ (𝐴(,)𝑋)
382381sseli 3560 . . . . . . . . . . . 12 (𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})) → 𝑢 ∈ (𝐴(,)𝑋))
383 fveq2 6085 . . . . . . . . . . . . . . . . . 18 (𝑧 = 𝑢 → (𝐹𝑧) = (𝐹𝑢))
384383oveq2d 6540 . . . . . . . . . . . . . . . . 17 (𝑧 = 𝑢 → ((𝐹𝑋) − (𝐹𝑧)) = ((𝐹𝑋) − (𝐹𝑢)))
385 fveq2 6085 . . . . . . . . . . . . . . . . . 18 (𝑧 = 𝑢 → (𝐺𝑧) = (𝐺𝑢))
386385oveq2d 6540 . . . . . . . . . . . . . . . . 17 (𝑧 = 𝑢 → ((𝐺𝑋) − (𝐺𝑧)) = ((𝐺𝑋) − (𝐺𝑢)))
387384, 386oveq12d 6542 . . . . . . . . . . . . . . . 16 (𝑧 = 𝑢 → (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))) = (((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))))
388 eqid 2606 . . . . . . . . . . . . . . . 16 (𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) = (𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))
389 ovex 6552 . . . . . . . . . . . . . . . 16 (((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) ∈ V
390387, 388, 389fvmpt 6173 . . . . . . . . . . . . . . 15 (𝑢 ∈ (𝐴(,)𝑋) → ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) = (((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))))
391390oveq1d 6539 . . . . . . . . . . . . . 14 (𝑢 ∈ (𝐴(,)𝑋) → (((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶) = ((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶))
392391fveq2d 6089 . . . . . . . . . . . . 13 (𝑢 ∈ (𝐴(,)𝑋) → (abs‘(((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶)) = (abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)))
393392breq1d 4584 . . . . . . . . . . . 12 (𝑢 ∈ (𝐴(,)𝑋) → ((abs‘(((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶)) ≤ 𝐸 ↔ (abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸))
394382, 393syl 17 . . . . . . . . . . 11 (𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})) → ((abs‘(((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶)) ≤ 𝐸 ↔ (abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸))
395394rexbiia 3018 . . . . . . . . . 10 (∃𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))(abs‘(((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶)) ≤ 𝐸 ↔ ∃𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))(abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸)
396378, 395sylibr 222 . . . . . . . . 9 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → ∃𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))(abs‘(((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶)) ≤ 𝐸)
397 ovex 6552 . . . . . . . . . . 11 (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))) ∈ V
398397, 388fnmpti 5918 . . . . . . . . . 10 (𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) Fn (𝐴(,)𝑋)
399 oveq1 6531 . . . . . . . . . . . . 13 (𝑥 = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) → (𝑥𝐶) = (((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶))
400399fveq2d 6089 . . . . . . . . . . . 12 (𝑥 = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) → (abs‘(𝑥𝐶)) = (abs‘(((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶)))
401400breq1d 4584 . . . . . . . . . . 11 (𝑥 = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) → ((abs‘(𝑥𝐶)) ≤ 𝐸 ↔ (abs‘(((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶)) ≤ 𝐸))
402401rexima 6376 . . . . . . . . . 10 (((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) Fn (𝐴(,)𝑋) ∧ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})) ⊆ (𝐴(,)𝑋)) → (∃𝑥 ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})))(abs‘(𝑥𝐶)) ≤ 𝐸 ↔ ∃𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))(abs‘(((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶)) ≤ 𝐸))
403398, 381, 402mp2an 703 . . . . . . . . 9 (∃𝑥 ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})))(abs‘(𝑥𝐶)) ≤ 𝐸 ↔ ∃𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))(abs‘(((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶)) ≤ 𝐸)
404396, 403sylibr 222 . . . . . . . 8 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → ∃𝑥 ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})))(abs‘(𝑥𝐶)) ≤ 𝐸)
405 dfrex2 2975 . . . . . . . 8 (∃𝑥 ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})))(abs‘(𝑥𝐶)) ≤ 𝐸 ↔ ¬ ∀𝑥 ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ¬ (abs‘(𝑥𝐶)) ≤ 𝐸)
406404, 405sylib 206 . . . . . . 7 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → ¬ ∀𝑥 ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ¬ (abs‘(𝑥𝐶)) ≤ 𝐸)
407 ssrab 3639 . . . . . . . 8 (((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} ↔ (((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ ℂ ∧ ∀𝑥 ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ¬ (abs‘(𝑥𝐶)) ≤ 𝐸))
408407simprbi 478 . . . . . . 7 (((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} → ∀𝑥 ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ¬ (abs‘(𝑥𝐶)) ≤ 𝐸)
409406, 408nsyl 133 . . . . . 6 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → ¬ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸})
410409expr 640 . . . . 5 ((𝜑𝑣 ∈ (TopOpen‘ℂfld)) → (𝐴𝑣 → ¬ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}))
411410ralrimiva 2945 . . . 4 (𝜑 → ∀𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 → ¬ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}))
412 ralinexa 2976 . . . 4 (∀𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 → ¬ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}) ↔ ¬ ∃𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 ∧ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}))
413411, 412sylib 206 . . 3 (𝜑 → ¬ ∃𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 ∧ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}))
414 oveq1 6531 . . . . . . . . 9 (𝑥 = ((𝐹𝑋) / (𝐺𝑋)) → (𝑥𝐶) = (((𝐹𝑋) / (𝐺𝑋)) − 𝐶))
415414fveq2d 6089 . . . . . . . 8 (𝑥 = ((𝐹𝑋) / (𝐺𝑋)) → (abs‘(𝑥𝐶)) = (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)))
416415breq1d 4584 . . . . . . 7 (𝑥 = ((𝐹𝑋) / (𝐺𝑋)) → ((abs‘(𝑥𝐶)) ≤ 𝐸 ↔ (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)) ≤ 𝐸))
417416notbid 306 . . . . . 6 (𝑥 = ((𝐹𝑋) / (𝐺𝑋)) → (¬ (abs‘(𝑥𝐶)) ≤ 𝐸 ↔ ¬ (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)) ≤ 𝐸))
418417elrab3 3328 . . . . 5 (((𝐹𝑋) / (𝐺𝑋)) ∈ ℂ → (((𝐹𝑋) / (𝐺𝑋)) ∈ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} ↔ ¬ (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)) ≤ 𝐸))
41922, 418syl 17 . . . 4 (𝜑 → (((𝐹𝑋) / (𝐺𝑋)) ∈ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} ↔ ¬ (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)) ≤ 𝐸))
420 notrab 3859 . . . . . 6 (ℂ ∖ {𝑥 ∈ ℂ ∣ (abs‘(𝑥𝐶)) ≤ 𝐸}) = {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}
42161cnmetdval 22313 . . . . . . . . . . . 12 ((𝐶 ∈ ℂ ∧ 𝑥 ∈ ℂ) → (𝐶(abs ∘ − )𝑥) = (abs‘(𝐶𝑥)))
422 abssub 13857 . . . . . . . . . . . 12 ((𝐶 ∈ ℂ ∧ 𝑥 ∈ ℂ) → (abs‘(𝐶𝑥)) = (abs‘(𝑥𝐶)))
423421, 422eqtrd 2640 . . . . . . . . . . 11 ((𝐶 ∈ ℂ ∧ 𝑥 ∈ ℂ) → (𝐶(abs ∘ − )𝑥) = (abs‘(𝑥𝐶)))
42425, 423sylan 486 . . . . . . . . . 10 ((𝜑𝑥 ∈ ℂ) → (𝐶(abs ∘ − )𝑥) = (abs‘(𝑥𝐶)))
425424breq1d 4584 . . . . . . . . 9 ((𝜑𝑥 ∈ ℂ) → ((𝐶(abs ∘ − )𝑥) ≤ 𝐸 ↔ (abs‘(𝑥𝐶)) ≤ 𝐸))
426425rabbidva 3159 . . . . . . . 8 (𝜑 → {𝑥 ∈ ℂ ∣ (𝐶(abs ∘ − )𝑥) ≤ 𝐸} = {𝑥 ∈ ℂ ∣ (abs‘(𝑥𝐶)) ≤ 𝐸})
42733a1i 11 . . . . . . . . 9 (𝜑 → (abs ∘ − ) ∈ (∞Met‘ℂ))
42829rexrd 9942 . . . . . . . . 9 (𝜑𝐸 ∈ ℝ*)
429 eqid 2606 . . . . . . . . . 10 {𝑥 ∈ ℂ ∣ (𝐶(abs ∘ − )𝑥) ≤ 𝐸} = {𝑥 ∈ ℂ ∣ (𝐶(abs ∘ − )𝑥) ≤ 𝐸}
43048, 429blcld 22058 . . . . . . . . 9 (((abs ∘ − ) ∈ (∞Met‘ℂ) ∧ 𝐶 ∈ ℂ ∧ 𝐸 ∈ ℝ*) → {𝑥 ∈ ℂ ∣ (𝐶(abs ∘ − )𝑥) ≤ 𝐸} ∈ (Clsd‘(TopOpen‘ℂfld)))
431427, 25, 428, 430syl3anc 1317 . . . . . . . 8 (𝜑 → {𝑥 ∈ ℂ ∣ (𝐶(abs ∘ − )𝑥) ≤ 𝐸} ∈ (Clsd‘(TopOpen‘ℂfld)))
432426, 431eqeltrrd 2685 . . . . . . 7 (𝜑 → {𝑥 ∈ ℂ ∣ (abs‘(𝑥𝐶)) ≤ 𝐸} ∈ (Clsd‘(TopOpen‘ℂfld)))
43347cnfldtopon 22325 . . . . . . . . 9 (TopOpen‘ℂfld) ∈ (TopOn‘ℂ)
434433toponunii 20486 . . . . . . . 8 ℂ = (TopOpen‘ℂfld)
435434cldopn 20584 . . . . . . 7 ({𝑥 ∈ ℂ ∣ (abs‘(𝑥𝐶)) ≤ 𝐸} ∈ (Clsd‘(TopOpen‘ℂfld)) → (ℂ ∖ {𝑥 ∈ ℂ ∣ (abs‘(𝑥𝐶)) ≤ 𝐸}) ∈ (TopOpen‘ℂfld))
436432, 435syl 17 . . . . . 6 (𝜑 → (ℂ ∖ {𝑥 ∈ ℂ ∣ (abs‘(𝑥𝐶)) ≤ 𝐸}) ∈ (TopOpen‘ℂfld))
437420, 436syl5eqelr 2689 . . . . 5 (𝜑 → {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} ∈ (TopOpen‘ℂfld))
4389adantr 479 . . . . . . . . 9 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐹𝑋) ∈ ℂ)
4391ffvelrnda 6249 . . . . . . . . . . 11 ((𝜑𝑧 ∈ (𝐴(,)𝐵)) → (𝐹𝑧) ∈ ℝ)
440121, 439syldan 485 . . . . . . . . . 10 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐹𝑧) ∈ ℝ)
441440recnd 9921 . . . . . . . . 9 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐹𝑧) ∈ ℂ)
442438, 441subcld 10240 . . . . . . . 8 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐹𝑋) − (𝐹𝑧)) ∈ ℂ)
443120, 124subcld 10240 . . . . . . . . 9 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐺𝑋) − (𝐺𝑧)) ∈ ℂ)
444 eldifsn 4256 . . . . . . . . 9 (((𝐺𝑋) − (𝐺𝑧)) ∈ (ℂ ∖ {0}) ↔ (((𝐺𝑋) − (𝐺𝑧)) ∈ ℂ ∧ ((𝐺𝑋) − (𝐺𝑧)) ≠ 0))
445443, 213, 444sylanbrc 694 . . . . . . . 8 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐺𝑋) − (𝐺𝑧)) ∈ (ℂ ∖ {0}))
446 ssid 3583 . . . . . . . . 9 ℂ ⊆ ℂ
447446a1i 11 . . . . . . . 8 (𝜑 → ℂ ⊆ ℂ)
448 difss 3695 . . . . . . . . 9 (ℂ ∖ {0}) ⊆ ℂ
449448a1i 11 . . . . . . . 8 (𝜑 → (ℂ ∖ {0}) ⊆ ℂ)
450 cnex 9870 . . . . . . . . . 10 ℂ ∈ V
451450, 448ssexi 4723 . . . . . . . . . 10 (ℂ ∖ {0}) ∈ V
452 txrest 21183 . . . . . . . . . 10 ((((TopOpen‘ℂfld) ∈ (TopOn‘ℂ) ∧ (TopOpen‘ℂfld) ∈ (TopOn‘ℂ)) ∧ (ℂ ∈ V ∧ (ℂ ∖ {0}) ∈ V)) → (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ↾t (ℂ × (ℂ ∖ {0}))) = (((TopOpen‘ℂfld) ↾t ℂ) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))))
453433, 433, 450, 451, 452mp4an 704 . . . . . . . . 9 (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ↾t (ℂ × (ℂ ∖ {0}))) = (((TopOpen‘ℂfld) ↾t ℂ) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})))
454434restid 15860 . . . . . . . . . . 11 ((TopOpen‘ℂfld) ∈ (TopOn‘ℂ) → ((TopOpen‘ℂfld) ↾t ℂ) = (TopOpen‘ℂfld))
455433, 454ax-mp 5 . . . . . . . . . 10 ((TopOpen‘ℂfld) ↾t ℂ) = (TopOpen‘ℂfld)
456455oveq1i 6534 . . . . . . . . 9 (((TopOpen‘ℂfld) ↾t ℂ) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))) = ((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})))
457453, 456eqtr2i 2629 . . . . . . . 8 ((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))) = (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ↾t (ℂ × (ℂ ∖ {0})))
4589subid1d 10229 . . . . . . . . 9 (𝜑 → ((𝐹𝑋) − 0) = (𝐹𝑋))
459 txtopon 21143 . . . . . . . . . . . . 13 (((TopOpen‘ℂfld) ∈ (TopOn‘ℂ) ∧ (TopOpen‘ℂfld) ∈ (TopOn‘ℂ)) → ((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ∈ (TopOn‘(ℂ × ℂ)))
460433, 433, 459mp2an 703 . . . . . . . . . . . 12 ((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ∈ (TopOn‘(ℂ × ℂ))
461460toponunii 20486 . . . . . . . . . . . . 13 (ℂ × ℂ) = ((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld))
462461restid 15860 . . . . . . . . . . . 12 (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ∈ (TopOn‘(ℂ × ℂ)) → (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ↾t (ℂ × ℂ)) = ((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)))
463460, 462ax-mp 5 . . . . . . . . . . 11 (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ↾t (ℂ × ℂ)) = ((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld))
464463eqcomi 2615 . . . . . . . . . 10 ((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) = (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ↾t (ℂ × ℂ))
465 limcresi 23369 . . . . . . . . . . . 12 ((𝑧 ∈ ℝ ↦ (𝐹𝑋)) lim 𝐴) ⊆ (((𝑧 ∈ ℝ ↦ (𝐹𝑋)) ↾ (𝐴(,)𝑋)) lim 𝐴)
466 ioossre 12059 . . . . . . . . . . . . . 14 (𝐴(,)𝑋) ⊆ ℝ
467 resmpt 5353 . . . . . . . . . . . . . 14 ((𝐴(,)𝑋) ⊆ ℝ → ((𝑧 ∈ ℝ ↦ (𝐹𝑋)) ↾ (𝐴(,)𝑋)) = (𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑋)))
468466, 467ax-mp 5 . . . . . . . . . . . . 13 ((𝑧 ∈ ℝ ↦ (𝐹𝑋)) ↾ (𝐴(,)𝑋)) = (𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑋))
469468oveq1i 6534 . . . . . . . . . . . 12 (((𝑧 ∈ ℝ ↦ (𝐹𝑋)) ↾ (𝐴(,)𝑋)) lim 𝐴) = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑋)) lim 𝐴)
470465, 469sseqtri 3596 . . . . . . . . . . 11 ((𝑧 ∈ ℝ ↦ (𝐹𝑋)) lim 𝐴) ⊆ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑋)) lim 𝐴)
471 cncfmptc 22450 . . . . . . . . . . . . 13 (((𝐹𝑋) ∈ ℝ ∧ ℝ ⊆ ℂ ∧ ℝ ⊆ ℂ) → (𝑧 ∈ ℝ ↦ (𝐹𝑋)) ∈ (ℝ–cn→ℝ))
4728, 144, 144, 471syl3anc 1317 . . . . . . . . . . . 12 (𝜑 → (𝑧 ∈ ℝ ↦ (𝐹𝑋)) ∈ (ℝ–cn→ℝ))
473 eqidd 2607 . . . . . . . . . . . 12 (𝑧 = 𝐴 → (𝐹𝑋) = (𝐹𝑋))
474472, 40, 473cnmptlimc 23374 . . . . . . . . . . 11 (𝜑 → (𝐹𝑋) ∈ ((𝑧 ∈ ℝ ↦ (𝐹𝑋)) lim 𝐴))
475470, 474sseldi 3562 . . . . . . . . . 10 (𝜑 → (𝐹𝑋) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑋)) lim 𝐴))
476 limcresi 23369 . . . . . . . . . . . 12 (𝐹 lim 𝐴) ⊆ ((𝐹 ↾ (𝐴(,)𝑋)) lim 𝐴)
4771, 107feqresmpt 6142 . . . . . . . . . . . . 13 (𝜑 → (𝐹 ↾ (𝐴(,)𝑋)) = (𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑧)))
478477oveq1d 6539 . . . . . . . . . . . 12 (𝜑 → ((𝐹 ↾ (𝐴(,)𝑋)) lim 𝐴) = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑧)) lim 𝐴))
479476, 478syl5sseq 3612 . . . . . . . . . . 11 (𝜑 → (𝐹 lim 𝐴) ⊆ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑧)) lim 𝐴))
480 lhop1.f0 . . . . . . . . . . 11 (𝜑 → 0 ∈ (𝐹 lim 𝐴))
481479, 480sseldd 3565 . . . . . . . . . 10 (𝜑 → 0 ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑧)) lim 𝐴))
48247subcn 22405 . . . . . . . . . . 11 − ∈ (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) Cn (TopOpen‘ℂfld))
483 0cn 9885 . . . . . . . . . . . 12 0 ∈ ℂ
484 opelxpi 5059 . . . . . . . . . . . 12 (((𝐹𝑋) ∈ ℂ ∧ 0 ∈ ℂ) → ⟨(𝐹𝑋), 0⟩ ∈ (ℂ × ℂ))
4859, 483, 484sylancl 692 . . . . . . . . . . 11 (𝜑 → ⟨(𝐹𝑋), 0⟩ ∈ (ℂ × ℂ))
486461cncnpi 20831 . . . . . . . . . . 11 (( − ∈ (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) Cn (TopOpen‘ℂfld)) ∧ ⟨(𝐹𝑋), 0⟩ ∈ (ℂ × ℂ)) → − ∈ ((((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) CnP (TopOpen‘ℂfld))‘⟨(𝐹𝑋), 0⟩))
487482, 485, 486sylancr 693 . . . . . . . . . 10 (𝜑 → − ∈ ((((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) CnP (TopOpen‘ℂfld))‘⟨(𝐹𝑋), 0⟩))
488438, 441, 447, 447, 47, 464, 475, 481, 487limccnp2 23376 . . . . . . . . 9 (𝜑 → ((𝐹𝑋) − 0) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ ((𝐹𝑋) − (𝐹𝑧))) lim 𝐴))
489458, 488eqeltrrd 2685 . . . . . . . 8 (𝜑 → (𝐹𝑋) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ ((𝐹𝑋) − (𝐹𝑧))) lim 𝐴))
49012subid1d 10229 . . . . . . . . 9 (𝜑 → ((𝐺𝑋) − 0) = (𝐺𝑋))
491 limcresi 23369 . . . . . . . . . . . 12 ((𝑧 ∈ ℝ ↦ (𝐺𝑋)) lim 𝐴) ⊆ (((𝑧 ∈ ℝ ↦ (𝐺𝑋)) ↾ (𝐴(,)𝑋)) lim 𝐴)
492 resmpt 5353 . . . . . . . . . . . . . 14 ((𝐴(,)𝑋) ⊆ ℝ → ((𝑧 ∈ ℝ ↦ (𝐺𝑋)) ↾ (𝐴(,)𝑋)) = (𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑋)))
493466, 492ax-mp 5 . . . . . . . . . . . . 13 ((𝑧 ∈ ℝ ↦ (𝐺𝑋)) ↾ (𝐴(,)𝑋)) = (𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑋))
494493oveq1i 6534 . . . . . . . . . . . 12 (((𝑧 ∈ ℝ ↦ (𝐺𝑋)) ↾ (𝐴(,)𝑋)) lim 𝐴) = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑋)) lim 𝐴)
495491, 494sseqtri 3596 . . . . . . . . . . 11 ((𝑧 ∈ ℝ ↦ (𝐺𝑋)) lim 𝐴) ⊆ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑋)) lim 𝐴)
496 cncfmptc 22450 . . . . . . . . . . . . 13 (((𝐺𝑋) ∈ ℝ ∧ ℝ ⊆ ℂ ∧ ℝ ⊆ ℂ) → (𝑧 ∈ ℝ ↦ (𝐺𝑋)) ∈ (ℝ–cn→ℝ))
49711, 144, 144, 496syl3anc 1317 . . . . . . . . . . . 12 (𝜑 → (𝑧 ∈ ℝ ↦ (𝐺𝑋)) ∈ (ℝ–cn→ℝ))
498 eqidd 2607 . . . . . . . . . . . 12 (𝑧 = 𝐴 → (𝐺𝑋) = (𝐺𝑋))
499497, 40, 498cnmptlimc 23374 . . . . . . . . . . 11 (𝜑 → (𝐺𝑋) ∈ ((𝑧 ∈ ℝ ↦ (𝐺𝑋)) lim 𝐴))
500495, 499sseldi 3562 . . . . . . . . . 10 (𝜑 → (𝐺𝑋) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑋)) lim 𝐴))
501 limcresi 23369 . . . . . . . . . . . 12 (𝐺 lim 𝐴) ⊆ ((𝐺 ↾ (𝐴(,)𝑋)) lim 𝐴)
50210, 107feqresmpt 6142 . . . . . . . . . . . . 13 (𝜑 → (𝐺 ↾ (𝐴(,)𝑋)) = (𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑧)))
503502oveq1d 6539 . . . . . . . . . . . 12 (𝜑 → ((𝐺 ↾ (𝐴(,)𝑋)) lim 𝐴) = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑧)) lim 𝐴))
504501, 503syl5sseq 3612 . . . . . . . . . . 11 (𝜑 → (𝐺 lim 𝐴) ⊆ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑧)) lim 𝐴))
505 lhop1.g0 . . . . . . . . . . 11 (𝜑 → 0 ∈ (𝐺 lim 𝐴))
506504, 505sseldd 3565 . . . . . . . . . 10 (𝜑 → 0 ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑧)) lim 𝐴))
507 opelxpi 5059 . . . . . . . . . . . 12 (((𝐺𝑋) ∈ ℂ ∧ 0 ∈ ℂ) → ⟨(𝐺𝑋), 0⟩ ∈ (ℂ × ℂ))
50812, 483, 507sylancl 692 . . . . . . . . . . 11 (𝜑 → ⟨(𝐺𝑋), 0⟩ ∈ (ℂ × ℂ))
509461cncnpi 20831 . . . . . . . . . . 11 (( − ∈ (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) Cn (TopOpen‘ℂfld)) ∧ ⟨(𝐺𝑋), 0⟩ ∈ (ℂ × ℂ)) → − ∈ ((((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) CnP (TopOpen‘ℂfld))‘⟨(𝐺𝑋), 0⟩))
510482, 508, 509sylancr 693 . . . . . . . . . 10 (𝜑 → − ∈ ((((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) CnP (TopOpen‘ℂfld))‘⟨(𝐺𝑋), 0⟩))
511120, 124, 447, 447, 47, 464, 500, 506, 510limccnp2 23376 . . . . . . . . 9 (𝜑 → ((𝐺𝑋) − 0) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ ((𝐺𝑋) − (𝐺𝑧))) lim 𝐴))
512490, 511eqeltrrd 2685 . . . . . . . 8 (𝜑 → (𝐺𝑋) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ ((𝐺𝑋) − (𝐺𝑧))) lim 𝐴))
513 eqid 2606 . . . . . . . . . 10 ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})) = ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))
51447, 513divcn 22407 . . . . . . . . 9 / ∈ (((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))) Cn (TopOpen‘ℂfld))
515 eldifsn 4256 . . . . . . . . . . 11 ((𝐺𝑋) ∈ (ℂ ∖ {0}) ↔ ((𝐺𝑋) ∈ ℂ ∧ (𝐺𝑋) ≠ 0))
51612, 21, 515sylanbrc 694 . . . . . . . . . 10 (𝜑 → (𝐺𝑋) ∈ (ℂ ∖ {0}))
517 opelxpi 5059 . . . . . . . . . 10 (((𝐹𝑋) ∈ ℂ ∧ (𝐺𝑋) ∈ (ℂ ∖ {0})) → ⟨(𝐹𝑋), (𝐺𝑋)⟩ ∈ (ℂ × (ℂ ∖ {0})))
5189, 516, 517syl2anc 690 . . . . . . . . 9 (𝜑 → ⟨(𝐹𝑋), (𝐺𝑋)⟩ ∈ (ℂ × (ℂ ∖ {0})))
519 resttopon 20714 . . . . . . . . . . . . 13 (((TopOpen‘ℂfld) ∈ (TopOn‘ℂ) ∧ (ℂ ∖ {0}) ⊆ ℂ) → ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})) ∈ (TopOn‘(ℂ ∖ {0})))
520433, 448, 519mp2an 703 . . . . . . . . . . . 12 ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})) ∈ (TopOn‘(ℂ ∖ {0}))
521 txtopon 21143 . . . . . . . . . . . 12 (((TopOpen‘ℂfld) ∈ (TopOn‘ℂ) ∧ ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})) ∈ (TopOn‘(ℂ ∖ {0}))) → ((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))) ∈ (TopOn‘(ℂ × (ℂ ∖ {0}))))
522433, 520, 521mp2an 703 . . . . . . . . . . 11 ((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))) ∈ (TopOn‘(ℂ × (ℂ ∖ {0})))
523522toponunii 20486 . . . . . . . . . 10 (ℂ × (ℂ ∖ {0})) = ((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})))
524523cncnpi 20831 . . . . . . . . 9 (( / ∈ (((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))) Cn (TopOpen‘ℂfld)) ∧ ⟨(𝐹𝑋), (𝐺𝑋)⟩ ∈ (ℂ × (ℂ ∖ {0}))) → / ∈ ((((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))) CnP (TopOpen‘ℂfld))‘⟨(𝐹𝑋), (𝐺𝑋)⟩))
525514, 518, 524sylancr 693 . . . . . . . 8 (𝜑 → / ∈ ((((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))) CnP (TopOpen‘ℂfld))‘⟨(𝐹𝑋), (𝐺𝑋)⟩))
526442, 445, 447, 449, 47, 457, 489, 512, 525limccnp2 23376 . . . . . . 7 (𝜑 → ((𝐹𝑋) / (𝐺𝑋)) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) lim 𝐴))
527442, 443, 213divcld 10647 . . . . . . . . 9 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))) ∈ ℂ)
528527, 388fmptd 6274 . . . . . . . 8 (𝜑 → (𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))):(𝐴(,)𝑋)⟶ℂ)
529466, 143sstri 3573 . . . . . . . . 9 (𝐴(,)𝑋) ⊆ ℂ
530529a1i 11 . . . . . . . 8 (𝜑 → (𝐴(,)𝑋) ⊆ ℂ)
531528, 530, 59, 47ellimc2 23361 . . . . . . 7 (𝜑 → (((𝐹𝑋) / (𝐺𝑋)) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) lim 𝐴) ↔ (((𝐹𝑋) / (𝐺𝑋)) ∈ ℂ ∧ ∀𝑢 ∈ (TopOpen‘ℂfld)(((𝐹𝑋) / (𝐺𝑋)) ∈ 𝑢 → ∃𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 ∧ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ 𝑢)))))
532526, 531mpbid 220 . . . . . 6 (𝜑 → (((𝐹𝑋) / (𝐺𝑋)) ∈ ℂ ∧ ∀𝑢 ∈ (TopOpen‘ℂfld)(((𝐹𝑋) / (𝐺𝑋)) ∈ 𝑢 → ∃𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 ∧ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ 𝑢))))
533532simprd 477 . . . . 5 (𝜑 → ∀𝑢 ∈ (TopOpen‘ℂfld)(((𝐹𝑋) / (𝐺𝑋)) ∈ 𝑢 → ∃𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 ∧ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ 𝑢)))
534 eleq2 2673 . . . . . . 7 (𝑢 = {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} → (((𝐹𝑋) / (𝐺𝑋)) ∈ 𝑢 ↔ ((𝐹𝑋) / (𝐺𝑋)) ∈ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}))
535 sseq2 3586 . . . . . . . . 9 (𝑢 = {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} → (((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ 𝑢 ↔ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}))
536535anbi2d 735 . . . . . . . 8 (𝑢 = {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} → ((𝐴𝑣 ∧ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ 𝑢) ↔ (𝐴𝑣 ∧ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸})))
537536rexbidv 3030 . . . . . . 7 (𝑢 = {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} → (∃𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 ∧ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ 𝑢) ↔ ∃𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 ∧ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸})))
538534, 537imbi12d 332 . . . . . 6 (𝑢 = {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} → ((((𝐹𝑋) / (𝐺𝑋)) ∈ 𝑢 → ∃𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 ∧ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ 𝑢)) ↔ (((𝐹𝑋) / (𝐺𝑋)) ∈ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} → ∃𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 ∧ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}))))
539538rspcv 3274 . . . . 5 ({𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} ∈ (TopOpen‘ℂfld) → (∀𝑢 ∈ (TopOpen‘ℂfld)(((𝐹𝑋) / (𝐺𝑋)) ∈ 𝑢 → ∃𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 ∧ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ 𝑢)) → (((𝐹𝑋) / (𝐺𝑋)) ∈ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} → ∃𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 ∧ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}))))
540437, 533, 539sylc 62 . . . 4 (𝜑 → (((𝐹𝑋) / (𝐺𝑋)) ∈ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} → ∃𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 ∧ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸})))
541419, 540sylbird 248 . . 3 (𝜑 → (¬ (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)) ≤ 𝐸 → ∃𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 ∧ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸})))
542413, 541mt3d 138 . 2 (𝜑 → (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)) ≤ 𝐸)
54329recnd 9921 . . . 4 (𝜑𝐸 ∈ ℂ)
544543mulid2d 9911 . . 3 (𝜑 → (1 · 𝐸) = 𝐸)
545 1red 9908 . . . 4 (𝜑 → 1 ∈ ℝ)
546 1lt2 11038 . . . . 5 1 < 2
547546a1i 11 . . . 4 (𝜑 → 1 < 2)
548545, 31, 28, 547ltmul1dd 11756 . . 3 (𝜑 → (1 · 𝐸) < (2 · 𝐸))
549544, 548eqbrtrrd 4598 . 2 (𝜑𝐸 < (2 · 𝐸))
55027, 29, 32, 542, 549lelttrd 10043 1 (𝜑 → (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)) < (2 · 𝐸))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 194  wa 382  w3a 1030   = wceq 1474  wcel 1976  wne 2776  wral 2892  wrex 2893  {crab 2896  Vcvv 3169  cdif 3533  cin 3535  wss 3536  c0 3870  {csn 4121  cop 4127   class class class wbr 4574  cmpt 4634   × cxp 5023  dom cdm 5025  ran crn 5026  cres 5027  cima 5028  ccom 5029   Fn wfn 5782  wf 5783  cfv 5787  (class class class)co 6524  cc 9787  cr 9788  0cc0 9789  1c1 9790   + caddc 9792   · cmul 9794  *cxr 9926   < clt 9927  cle 9928  cmin 10114   / cdiv 10530  2c2 10914  +crp 11661  (,)cioo 11999  [,]cicc 12002  abscabs 13765  t crest 15847  TopOpenctopn 15848  topGenctg 15864  ∞Metcxmt 19495  ballcbl 19497  fldccnfld 19510  TopOnctopon 20457  Clsdccld 20569  intcnt 20570   Cn ccn 20777   CnP ccnp 20778   ×t ctx 21112  cnccncf 22415   lim climc 23346   D cdv 23347
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1712  ax-4 1727  ax-5 1826  ax-6 1874  ax-7 1921  ax-8 1978  ax-9 1985  ax-10 2005  ax-11 2020  ax-12 2032  ax-13 2229  ax-ext 2586  ax-rep 4690  ax-sep 4700  ax-nul 4709  ax-pow 4761  ax-pr 4825  ax-un 6821  ax-inf2 8395  ax-cnex 9845  ax-resscn 9846  ax-1cn 9847  ax-icn 9848  ax-addcl 9849  ax-addrcl 9850  ax-mulcl 9851  ax-mulrcl 9852  ax-mulcom 9853  ax-addass 9854  ax-mulass 9855  ax-distr 9856  ax-i2m1 9857  ax-1ne0 9858  ax-1rid 9859  ax-rnegex 9860  ax-rrecex 9861  ax-cnre 9862  ax-pre-lttri 9863  ax-pre-lttrn 9864  ax-pre-ltadd 9865  ax-pre-mulgt0 9866  ax-pre-sup 9867  ax-addf 9868  ax-mulf 9869
This theorem depends on definitions:  df-bi 195  df-or 383  df-an 384  df-3or 1031  df-3an 1032  df-tru 1477  df-ex 1695  df-nf 1700  df-sb 1867  df-eu 2458  df-mo 2459  df-clab 2593  df-cleq 2599  df-clel 2602  df-nfc 2736  df-ne 2778  df-nel 2779  df-ral 2897  df-rex 2898  df-reu 2899  df-rmo 2900  df-rab 2901  df-v 3171  df-sbc 3399  df-csb 3496  df-dif 3539  df-un 3541  df-in 3543  df-ss 3550  df-pss 3552  df-nul 3871  df-if 4033  df-pw 4106  df-sn 4122  df-pr 4124  df-tp 4126  df-op 4128  df-uni 4364  df-int 4402  df-iun 4448  df-iin 4449  df-br 4575  df-opab 4635  df-mpt 4636  df-tr 4672  df-eprel 4936  df-id 4940  df-po 4946  df-so 4947  df-fr 4984  df-se 4985  df-we 4986  df-xp 5031  df-rel 5032  df-cnv 5033  df-co 5034  df-dm 5035  df-rn 5036  df-res 5037  df-ima 5038  df-pred 5580  df-ord 5626  df-on 5627  df-lim 5628  df-suc 5629  df-iota 5751  df-fun 5789  df-fn 5790  df-f 5791  df-f1 5792  df-fo 5793  df-f1o 5794  df-fv 5795  df-isom 5796  df-riota 6486  df-ov 6527  df-oprab 6528  df-mpt2 6529  df-of 6769  df-om 6932  df-1st 7033  df-2nd 7034  df-supp 7157  df-wrecs 7268  df-recs 7329  df-rdg 7367  df-1o 7421  df-2o 7422  df-oadd 7425  df-er 7603  df-map 7720  df-pm 7721  df-ixp 7769  df-en 7816  df-dom 7817  df-sdom 7818  df-fin 7819  df-fsupp 8133  df-fi 8174  df-sup 8205  df-inf 8206  df-oi 8272  df-card 8622  df-cda 8847  df-pnf 9929  df-mnf 9930  df-xr 9931  df-ltxr 9932  df-le 9933  df-sub 10116  df-neg 10117  df-div 10531  df-nn 10865  df-2 10923  df-3 10924  df-4 10925  df-5 10926  df-6 10927  df-7 10928  df-8 10929  df-9 10930  df-n0 11137  df-z 11208  df-dec 11323  df-uz 11517  df-q 11618  df-rp 11662  df-xneg 11775  df-xadd 11776  df-xmul 11777  df-ioo 12003  df-ico 12005  df-icc 12006  df-fz 12150  df-fzo 12287  df-seq 12616  df-exp 12675  df-hash 12932  df-cj 13630  df-re 13631  df-im 13632  df-sqrt 13766  df-abs 13767  df-struct 15640  df-ndx 15641  df-slot 15642  df-base 15643  df-sets 15644  df-ress 15645  df-plusg 15724  df-mulr 15725  df-starv 15726  df-sca 15727  df-vsca 15728  df-ip 15729  df-tset 15730  df-ple 15731  df-ds 15734  df-unif 15735  df-hom 15736  df-cco 15737  df-rest 15849  df-topn 15850  df-0g 15868  df-gsum 15869  df-topgen 15870  df-pt 15871  df-prds 15874  df-xrs 15928  df-qtop 15933  df-imas 15934  df-xps 15936  df-mre 16012  df-mrc 16013  df-acs 16015  df-mgm 17008  df-sgrp 17050  df-mnd 17061  df-submnd 17102  df-mulg 17307  df-cntz 17516  df-cmn 17961  df-psmet 19502  df-xmet 19503  df-met 19504  df-bl 19505  df-mopn 19506  df-fbas 19507  df-fg 19508  df-cnfld 19511  df-top 20460  df-bases 20461  df-topon 20462  df-topsp 20463  df-cld 20572  df-ntr 20573  df-cls 20574  df-nei 20651  df-lp 20689  df-perf 20690  df-cn 20780  df-cnp 20781  df-haus 20868  df-cmp 20939  df-tx 21114  df-hmeo 21307  df-fil 21399  df-fm 21491  df-flim 21492  df-flf 21493  df-xms 21873  df-ms 21874  df-tms 21875  df-cncf 22417  df-limc 23350  df-dv 23351
This theorem is referenced by:  lhop1  23495
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