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Theorem lhop1lem 24626
 Description: Lemma for lhop1 24627. (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 12765 . . . . . . . . 9 ((𝐵 ∈ ℝ*𝐷𝐵) → (𝐴(,)𝐷) ⊆ (𝐴(,)𝐵))
52, 3, 4syl2anc 587 . . . . . . . 8 (𝜑 → (𝐴(,)𝐷) ⊆ (𝐴(,)𝐵))
6 lhop1lem.x . . . . . . . 8 (𝜑𝑋 ∈ (𝐴(,)𝐷))
75, 6sseldd 3916 . . . . . . 7 (𝜑𝑋 ∈ (𝐴(,)𝐵))
81, 7ffvelrnd 6830 . . . . . 6 (𝜑 → (𝐹𝑋) ∈ ℝ)
98recnd 10661 . . . . 5 (𝜑 → (𝐹𝑋) ∈ ℂ)
10 lhop1.g . . . . . . 7 (𝜑𝐺:(𝐴(,)𝐵)⟶ℝ)
1110, 7ffvelrnd 6830 . . . . . 6 (𝜑 → (𝐺𝑋) ∈ ℝ)
1211recnd 10661 . . . . 5 (𝜑 → (𝐺𝑋) ∈ ℂ)
13 lhop1.gn0 . . . . . 6 (𝜑 → ¬ 0 ∈ ran 𝐺)
1410ffnd 6489 . . . . . . . . 9 (𝜑𝐺 Fn (𝐴(,)𝐵))
15 fnfvelrn 6826 . . . . . . . . 9 ((𝐺 Fn (𝐴(,)𝐵) ∧ 𝑋 ∈ (𝐴(,)𝐵)) → (𝐺𝑋) ∈ ran 𝐺)
1614, 7, 15syl2anc 587 . . . . . . . 8 (𝜑 → (𝐺𝑋) ∈ ran 𝐺)
17 eleq1 2877 . . . . . . . 8 ((𝐺𝑋) = 0 → ((𝐺𝑋) ∈ ran 𝐺 ↔ 0 ∈ ran 𝐺))
1816, 17syl5ibcom 248 . . . . . . 7 (𝜑 → ((𝐺𝑋) = 0 → 0 ∈ ran 𝐺))
1918necon3bd 3001 . . . . . 6 (𝜑 → (¬ 0 ∈ ran 𝐺 → (𝐺𝑋) ≠ 0))
2013, 19mpd 15 . . . . 5 (𝜑 → (𝐺𝑋) ≠ 0)
219, 12, 20divcld 11408 . . . 4 (𝜑 → ((𝐹𝑋) / (𝐺𝑋)) ∈ ℂ)
22 limccl 24488 . . . . 5 ((𝑧 ∈ (𝐴(,)𝐵) ↦ (((ℝ D 𝐹)‘𝑧) / ((ℝ D 𝐺)‘𝑧))) lim 𝐴) ⊆ ℂ
23 lhop1.c . . . . 5 (𝜑𝐶 ∈ ((𝑧 ∈ (𝐴(,)𝐵) ↦ (((ℝ D 𝐹)‘𝑧) / ((ℝ D 𝐺)‘𝑧))) lim 𝐴))
2422, 23sseldi 3913 . . . 4 (𝜑𝐶 ∈ ℂ)
2521, 24subcld 10989 . . 3 (𝜑 → (((𝐹𝑋) / (𝐺𝑋)) − 𝐶) ∈ ℂ)
2625abscld 14791 . 2 (𝜑 → (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)) ∈ ℝ)
27 lhop1lem.e . . 3 (𝜑𝐸 ∈ ℝ+)
2827rpred 12422 . 2 (𝜑𝐸 ∈ ℝ)
29 2re 11702 . . . 4 2 ∈ ℝ
3029a1i 11 . . 3 (𝜑 → 2 ∈ ℝ)
3130, 28remulcld 10663 . 2 (𝜑 → (2 · 𝐸) ∈ ℝ)
32 cnxmet 23388 . . . . . . . . . . . . 13 (abs ∘ − ) ∈ (∞Met‘ℂ)
3332a1i 11 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → (abs ∘ − ) ∈ (∞Met‘ℂ))
34 simprl 770 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → 𝑣 ∈ (TopOpen‘ℂfld))
35 simprr 772 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → 𝐴𝑣)
36 eliooord 12787 . . . . . . . . . . . . . . . 16 (𝑋 ∈ (𝐴(,)𝐷) → (𝐴 < 𝑋𝑋 < 𝐷))
376, 36syl 17 . . . . . . . . . . . . . . 15 (𝜑 → (𝐴 < 𝑋𝑋 < 𝐷))
3837simpld 498 . . . . . . . . . . . . . 14 (𝜑𝐴 < 𝑋)
39 lhop1.a . . . . . . . . . . . . . . 15 (𝜑𝐴 ∈ ℝ)
40 ioossre 12789 . . . . . . . . . . . . . . . 16 (𝐴(,)𝐷) ⊆ ℝ
4140, 6sseldi 3913 . . . . . . . . . . . . . . 15 (𝜑𝑋 ∈ ℝ)
42 difrp 12418 . . . . . . . . . . . . . . 15 ((𝐴 ∈ ℝ ∧ 𝑋 ∈ ℝ) → (𝐴 < 𝑋 ↔ (𝑋𝐴) ∈ ℝ+))
4339, 41, 42syl2anc 587 . . . . . . . . . . . . . 14 (𝜑 → (𝐴 < 𝑋 ↔ (𝑋𝐴) ∈ ℝ+))
4438, 43mpbid 235 . . . . . . . . . . . . 13 (𝜑 → (𝑋𝐴) ∈ ℝ+)
4544adantr 484 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → (𝑋𝐴) ∈ ℝ+)
46 eqid 2798 . . . . . . . . . . . . . 14 (TopOpen‘ℂfld) = (TopOpen‘ℂfld)
4746cnfldtopn 23397 . . . . . . . . . . . . 13 (TopOpen‘ℂfld) = (MetOpen‘(abs ∘ − ))
4847mopni3 23111 . . . . . . . . . . . 12 ((((abs ∘ − ) ∈ (∞Met‘ℂ) ∧ 𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣) ∧ (𝑋𝐴) ∈ ℝ+) → ∃𝑟 ∈ ℝ+ (𝑟 < (𝑋𝐴) ∧ (𝐴(ball‘(abs ∘ − ))𝑟) ⊆ 𝑣))
4933, 34, 35, 45, 48syl31anc 1370 . . . . . . . . . . 11 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → ∃𝑟 ∈ ℝ+ (𝑟 < (𝑋𝐴) ∧ (𝐴(ball‘(abs ∘ − ))𝑟) ⊆ 𝑣))
50 ssrin 4160 . . . . . . . . . . . . . . . 16 ((𝐴(ball‘(abs ∘ − ))𝑟) ⊆ 𝑣 → ((𝐴(ball‘(abs ∘ − ))𝑟) ∩ (𝐴(,)𝑋)) ⊆ (𝑣 ∩ (𝐴(,)𝑋)))
51 lbioo 12760 . . . . . . . . . . . . . . . . . . 19 ¬ 𝐴 ∈ (𝐴(,)𝑋)
52 disjsn 4607 . . . . . . . . . . . . . . . . . . 19 (((𝐴(,)𝑋) ∩ {𝐴}) = ∅ ↔ ¬ 𝐴 ∈ (𝐴(,)𝑋))
5351, 52mpbir 234 . . . . . . . . . . . . . . . . . 18 ((𝐴(,)𝑋) ∩ {𝐴}) = ∅
54 disj3 4361 . . . . . . . . . . . . . . . . . 18 (((𝐴(,)𝑋) ∩ {𝐴}) = ∅ ↔ (𝐴(,)𝑋) = ((𝐴(,)𝑋) ∖ {𝐴}))
5553, 54mpbi 233 . . . . . . . . . . . . . . . . 17 (𝐴(,)𝑋) = ((𝐴(,)𝑋) ∖ {𝐴})
5655ineq2i 4136 . . . . . . . . . . . . . . . 16 (𝑣 ∩ (𝐴(,)𝑋)) = (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))
5750, 56sseqtrdi 3965 . . . . . . . . . . . . . . 15 ((𝐴(ball‘(abs ∘ − ))𝑟) ⊆ 𝑣 → ((𝐴(ball‘(abs ∘ − ))𝑟) ∩ (𝐴(,)𝑋)) ⊆ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})))
58 lhop1lem.r . . . . . . . . . . . . . . . . . . . . . . . 24 𝑅 = (𝐴 + (𝑟 / 2))
5939adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐴 ∈ ℝ)
60 simprl 770 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑟 ∈ ℝ+)
6160rpred 12422 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑟 ∈ ℝ)
6261rehalfcld 11875 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) ∈ ℝ)
6359, 62readdcld 10662 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐴 + (𝑟 / 2)) ∈ ℝ)
6458, 63eqeltrid 2894 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ ℝ)
6564recnd 10661 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ ℂ)
6639recnd 10661 . . . . . . . . . . . . . . . . . . . . . . 23 (𝜑𝐴 ∈ ℂ)
6766adantr 484 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐴 ∈ ℂ)
68 eqid 2798 . . . . . . . . . . . . . . . . . . . . . . 23 (abs ∘ − ) = (abs ∘ − )
6968cnmetdval 23386 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑅 ∈ ℂ ∧ 𝐴 ∈ ℂ) → (𝑅(abs ∘ − )𝐴) = (abs‘(𝑅𝐴)))
7065, 67, 69syl2anc 587 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(abs ∘ − )𝐴) = (abs‘(𝑅𝐴)))
7158oveq1i 7146 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑅𝐴) = ((𝐴 + (𝑟 / 2)) − 𝐴)
7261recnd 10661 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑟 ∈ ℂ)
7372halfcld 11873 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) ∈ ℂ)
7467, 73pncan2d 10991 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((𝐴 + (𝑟 / 2)) − 𝐴) = (𝑟 / 2))
7571, 74syl5eq 2845 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅𝐴) = (𝑟 / 2))
7675fveq2d 6650 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (abs‘(𝑅𝐴)) = (abs‘(𝑟 / 2)))
7760rphalfcld 12434 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) ∈ ℝ+)
7877rpred 12422 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) ∈ ℝ)
7977rpge0d 12426 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 0 ≤ (𝑟 / 2))
8078, 79absidd 14777 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (abs‘(𝑟 / 2)) = (𝑟 / 2))
8170, 76, 803eqtrd 2837 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(abs ∘ − )𝐴) = (𝑟 / 2))
82 rphalflt 12409 . . . . . . . . . . . . . . . . . . . . 21 (𝑟 ∈ ℝ+ → (𝑟 / 2) < 𝑟)
8360, 82syl 17 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) < 𝑟)
8481, 83eqbrtrd 5053 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(abs ∘ − )𝐴) < 𝑟)
8532a1i 11 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (abs ∘ − ) ∈ (∞Met‘ℂ))
8661rexrd 10683 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑟 ∈ ℝ*)
87 elbl3 23009 . . . . . . . . . . . . . . . . . . . 20 ((((abs ∘ − ) ∈ (∞Met‘ℂ) ∧ 𝑟 ∈ ℝ*) ∧ (𝐴 ∈ ℂ ∧ 𝑅 ∈ ℂ)) → (𝑅 ∈ (𝐴(ball‘(abs ∘ − ))𝑟) ↔ (𝑅(abs ∘ − )𝐴) < 𝑟))
8885, 86, 67, 65, 87syl22anc 837 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅 ∈ (𝐴(ball‘(abs ∘ − ))𝑟) ↔ (𝑅(abs ∘ − )𝐴) < 𝑟))
8984, 88mpbird 260 . . . . . . . . . . . . . . . . . 18 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ (𝐴(ball‘(abs ∘ − ))𝑟))
9059, 77ltaddrpd 12455 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐴 < (𝐴 + (𝑟 / 2)))
9190, 58breqtrrdi 5073 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐴 < 𝑅)
9241adantr 484 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑋 ∈ ℝ)
9392, 59resubcld 11060 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑋𝐴) ∈ ℝ)
94 simprr 772 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑟 < (𝑋𝐴))
9578, 61, 93, 83, 94lttrd 10793 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) < (𝑋𝐴))
9659, 78, 92ltaddsub2d 11233 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((𝐴 + (𝑟 / 2)) < 𝑋 ↔ (𝑟 / 2) < (𝑋𝐴)))
9795, 96mpbird 260 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐴 + (𝑟 / 2)) < 𝑋)
9858, 97eqbrtrid 5066 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 < 𝑋)
9959rexrd 10683 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐴 ∈ ℝ*)
10041rexrd 10683 . . . . . . . . . . . . . . . . . . . . 21 (𝜑𝑋 ∈ ℝ*)
101100adantr 484 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑋 ∈ ℝ*)
102 elioo2 12770 . . . . . . . . . . . . . . . . . . . 20 ((𝐴 ∈ ℝ*𝑋 ∈ ℝ*) → (𝑅 ∈ (𝐴(,)𝑋) ↔ (𝑅 ∈ ℝ ∧ 𝐴 < 𝑅𝑅 < 𝑋)))
10399, 101, 102syl2anc 587 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅 ∈ (𝐴(,)𝑋) ↔ (𝑅 ∈ ℝ ∧ 𝐴 < 𝑅𝑅 < 𝑋)))
10464, 91, 98, 103mpbir3and 1339 . . . . . . . . . . . . . . . . . 18 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ (𝐴(,)𝑋))
10589, 104elind 4121 . . . . . . . . . . . . . . . . 17 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ ((𝐴(ball‘(abs ∘ − ))𝑟) ∩ (𝐴(,)𝑋)))
1069adantr 484 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐹𝑋) ∈ ℂ)
1071adantr 484 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐹:(𝐴(,)𝐵)⟶ℝ)
108 lhop1lem.d . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝜑𝐷 ∈ ℝ)
109108rexrd 10683 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝜑𝐷 ∈ ℝ*)
11037simprd 499 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝜑𝑋 < 𝐷)
11141, 108, 110ltled 10780 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝜑𝑋𝐷)
112100, 109, 2, 111, 3xrletrd 12546 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝜑𝑋𝐵)
113 iooss2 12765 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝐵 ∈ ℝ*𝑋𝐵) → (𝐴(,)𝑋) ⊆ (𝐴(,)𝐵))
1142, 112, 113syl2anc 587 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝜑 → (𝐴(,)𝑋) ⊆ (𝐴(,)𝐵))
115114adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐴(,)𝑋) ⊆ (𝐴(,)𝐵))
116115, 104sseldd 3916 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ (𝐴(,)𝐵))
117107, 116ffvelrnd 6830 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐹𝑅) ∈ ℝ)
118117recnd 10661 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐹𝑅) ∈ ℂ)
119106, 118subcld 10989 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((𝐹𝑋) − (𝐹𝑅)) ∈ ℂ)
12012adantr 484 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐺𝑋) ∈ ℂ)
12110adantr 484 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐺:(𝐴(,)𝐵)⟶ℝ)
122121, 116ffvelrnd 6830 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐺𝑅) ∈ ℝ)
123122recnd 10661 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐺𝑅) ∈ ℂ)
124120, 123subcld 10989 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((𝐺𝑋) − (𝐺𝑅)) ∈ ℂ)
125 fveq2 6646 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑧 = 𝑅 → (𝐺𝑧) = (𝐺𝑅))
126125oveq2d 7152 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑧 = 𝑅 → ((𝐺𝑋) − (𝐺𝑧)) = ((𝐺𝑋) − (𝐺𝑅)))
127126neeq1d 3046 . . . . . . . . . . . . . . . . . . . . . 22 (𝑧 = 𝑅 → (((𝐺𝑋) − (𝐺𝑧)) ≠ 0 ↔ ((𝐺𝑋) − (𝐺𝑅)) ≠ 0))
128 lhop1.gd0 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝜑 → ¬ 0 ∈ ran (ℝ D 𝐺))
129128adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ¬ 0 ∈ ran (ℝ D 𝐺))
13012adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐺𝑋) ∈ ℂ)
131114sselda 3915 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑧 ∈ (𝐴(,)𝐵))
13210ffvelrnda 6829 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ((𝜑𝑧 ∈ (𝐴(,)𝐵)) → (𝐺𝑧) ∈ ℝ)
133131, 132syldan 594 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐺𝑧) ∈ ℝ)
134133recnd 10661 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐺𝑧) ∈ ℂ)
135130, 134subeq0ad 10999 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (((𝐺𝑋) − (𝐺𝑧)) = 0 ↔ (𝐺𝑋) = (𝐺𝑧)))
136 ioossre 12789 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 (𝐴(,)𝐵) ⊆ ℝ
137136, 131sseldi 3913 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑧 ∈ ℝ)
138137adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → 𝑧 ∈ ℝ)
13941ad2antrr 725 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → 𝑋 ∈ ℝ)
140 eliooord 12787 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (𝑧 ∈ (𝐴(,)𝑋) → (𝐴 < 𝑧𝑧 < 𝑋))
141140adantl 485 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐴 < 𝑧𝑧 < 𝑋))
142141simprd 499 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑧 < 𝑋)
143142adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → 𝑧 < 𝑋)
14439rexrd 10683 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (𝜑𝐴 ∈ ℝ*)
145144adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝐴 ∈ ℝ*)
1462adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝐵 ∈ ℝ*)
147141simpld 498 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝐴 < 𝑧)
148100, 109, 2, 110, 3xrltletrd 12545 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (𝜑𝑋 < 𝐵)
149148adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑋 < 𝐵)
150 iccssioo 12797 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝐴 ∈ ℝ*𝐵 ∈ ℝ*) ∧ (𝐴 < 𝑧𝑋 < 𝐵)) → (𝑧[,]𝑋) ⊆ (𝐴(,)𝐵))
151145, 146, 147, 149, 150syl22anc 837 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝑧[,]𝑋) ⊆ (𝐴(,)𝐵))
152151adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (𝑧[,]𝑋) ⊆ (𝐴(,)𝐵))
153 ax-resscn 10586 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ℝ ⊆ ℂ
154153a1i 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (𝜑 → ℝ ⊆ ℂ)
155 fss 6502 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 ((𝐺:(𝐴(,)𝐵)⟶ℝ ∧ ℝ ⊆ ℂ) → 𝐺:(𝐴(,)𝐵)⟶ℂ)
15610, 153, 155sylancl 589 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (𝜑𝐺:(𝐴(,)𝐵)⟶ℂ)
157136a1i 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (𝜑 → (𝐴(,)𝐵) ⊆ ℝ)
158 lhop1.ig . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (𝜑 → dom (ℝ D 𝐺) = (𝐴(,)𝐵))
159 dvcn 24534 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (((ℝ ⊆ ℂ ∧ 𝐺:(𝐴(,)𝐵)⟶ℂ ∧ (𝐴(,)𝐵) ⊆ ℝ) ∧ dom (ℝ D 𝐺) = (𝐴(,)𝐵)) → 𝐺 ∈ ((𝐴(,)𝐵)–cn→ℂ))
160154, 156, 157, 158, 159syl31anc 1370 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (𝜑𝐺 ∈ ((𝐴(,)𝐵)–cn→ℂ))
161 cncffvrn 23513 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ((ℝ ⊆ ℂ ∧ 𝐺 ∈ ((𝐴(,)𝐵)–cn→ℂ)) → (𝐺 ∈ ((𝐴(,)𝐵)–cn→ℝ) ↔ 𝐺:(𝐴(,)𝐵)⟶ℝ))
162153, 160, 161sylancr 590 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (𝜑 → (𝐺 ∈ ((𝐴(,)𝐵)–cn→ℝ) ↔ 𝐺:(𝐴(,)𝐵)⟶ℝ))
16310, 162mpbird 260 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 (𝜑𝐺 ∈ ((𝐴(,)𝐵)–cn→ℝ))
164163ad2antrr 725 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → 𝐺 ∈ ((𝐴(,)𝐵)–cn→ℝ))
165 rescncf 23512 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ((𝑧[,]𝑋) ⊆ (𝐴(,)𝐵) → (𝐺 ∈ ((𝐴(,)𝐵)–cn→ℝ) → (𝐺 ↾ (𝑧[,]𝑋)) ∈ ((𝑧[,]𝑋)–cn→ℝ)))
166152, 164, 165sylc 65 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (𝐺 ↾ (𝑧[,]𝑋)) ∈ ((𝑧[,]𝑋)–cn→ℝ))
167153a1i 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ℝ ⊆ ℂ)
168156ad2antrr 725 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → 𝐺:(𝐴(,)𝐵)⟶ℂ)
169136a1i 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (𝐴(,)𝐵) ⊆ ℝ)
170152, 136sstrdi 3927 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (𝑧[,]𝑋) ⊆ ℝ)
17146tgioo2 23418 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (topGen‘ran (,)) = ((TopOpen‘ℂfld) ↾t ℝ)
17246, 171dvres 24524 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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))))
173167, 168, 169, 170, 172syl22anc 837 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (ℝ D (𝐺 ↾ (𝑧[,]𝑋))) = ((ℝ D 𝐺) ↾ ((int‘(topGen‘ran (,)))‘(𝑧[,]𝑋))))
174 iccntr 23436 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ((𝑧 ∈ ℝ ∧ 𝑋 ∈ ℝ) → ((int‘(topGen‘ran (,)))‘(𝑧[,]𝑋)) = (𝑧(,)𝑋))
175138, 139, 174syl2anc 587 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ((int‘(topGen‘ran (,)))‘(𝑧[,]𝑋)) = (𝑧(,)𝑋))
176175reseq2d 5819 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ((ℝ D 𝐺) ↾ ((int‘(topGen‘ran (,)))‘(𝑧[,]𝑋))) = ((ℝ D 𝐺) ↾ (𝑧(,)𝑋)))
177173, 176eqtrd 2833 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (ℝ D (𝐺 ↾ (𝑧[,]𝑋))) = ((ℝ D 𝐺) ↾ (𝑧(,)𝑋)))
178177dmeqd 5739 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → dom (ℝ D (𝐺 ↾ (𝑧[,]𝑋))) = dom ((ℝ D 𝐺) ↾ (𝑧(,)𝑋)))
179 ioossicc 12814 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (𝑧(,)𝑋) ⊆ (𝑧[,]𝑋)
180179, 152sstrid 3926 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (𝑧(,)𝑋) ⊆ (𝐴(,)𝐵))
181158ad2antrr 725 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → dom (ℝ D 𝐺) = (𝐴(,)𝐵))
182180, 181sseqtrrd 3956 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (𝑧(,)𝑋) ⊆ dom (ℝ D 𝐺))
183 ssdmres 5842 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((𝑧(,)𝑋) ⊆ dom (ℝ D 𝐺) ↔ dom ((ℝ D 𝐺) ↾ (𝑧(,)𝑋)) = (𝑧(,)𝑋))
184182, 183sylib 221 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → dom ((ℝ D 𝐺) ↾ (𝑧(,)𝑋)) = (𝑧(,)𝑋))
185178, 184eqtrd 2833 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → dom (ℝ D (𝐺 ↾ (𝑧[,]𝑋))) = (𝑧(,)𝑋))
186137rexrd 10683 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑧 ∈ ℝ*)
187100adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑋 ∈ ℝ*)
18841adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑋 ∈ ℝ)
189137, 188, 142ltled 10780 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑧𝑋)
190 ubicc2 12846 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ((𝑧 ∈ ℝ*𝑋 ∈ ℝ*𝑧𝑋) → 𝑋 ∈ (𝑧[,]𝑋))
191186, 187, 189, 190syl3anc 1368 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑋 ∈ (𝑧[,]𝑋))
192191fvresd 6666 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐺 ↾ (𝑧[,]𝑋))‘𝑋) = (𝐺𝑋))
193 lbicc2 12845 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ((𝑧 ∈ ℝ*𝑋 ∈ ℝ*𝑧𝑋) → 𝑧 ∈ (𝑧[,]𝑋))
194186, 187, 189, 193syl3anc 1368 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑧 ∈ (𝑧[,]𝑋))
195194fvresd 6666 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐺 ↾ (𝑧[,]𝑋))‘𝑧) = (𝐺𝑧))
196192, 195eqeq12d 2814 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (((𝐺 ↾ (𝑧[,]𝑋))‘𝑋) = ((𝐺 ↾ (𝑧[,]𝑋))‘𝑧) ↔ (𝐺𝑋) = (𝐺𝑧)))
197196biimpar 481 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ((𝐺 ↾ (𝑧[,]𝑋))‘𝑋) = ((𝐺 ↾ (𝑧[,]𝑋))‘𝑧))
198197eqcomd 2804 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ((𝐺 ↾ (𝑧[,]𝑋))‘𝑧) = ((𝐺 ↾ (𝑧[,]𝑋))‘𝑋))
199138, 139, 143, 166, 185, 198rolle 24603 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ∃𝑤 ∈ (𝑧(,)𝑋)((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) = 0)
200177fveq1d 6648 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) = (((ℝ D 𝐺) ↾ (𝑧(,)𝑋))‘𝑤))
201 fvres 6665 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (𝑤 ∈ (𝑧(,)𝑋) → (((ℝ D 𝐺) ↾ (𝑧(,)𝑋))‘𝑤) = ((ℝ D 𝐺)‘𝑤))
202200, 201sylan9eq 2853 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) ∧ 𝑤 ∈ (𝑧(,)𝑋)) → ((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) = ((ℝ D 𝐺)‘𝑤))
203 dvf 24520 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 (ℝ D 𝐺):dom (ℝ D 𝐺)⟶ℂ
204158feq2d 6474 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 (𝜑 → ((ℝ D 𝐺):dom (ℝ D 𝐺)⟶ℂ ↔ (ℝ D 𝐺):(𝐴(,)𝐵)⟶ℂ))
205203, 204mpbii 236 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 (𝜑 → (ℝ D 𝐺):(𝐴(,)𝐵)⟶ℂ)
206205ad2antrr 725 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (ℝ D 𝐺):(𝐴(,)𝐵)⟶ℂ)
207206ffnd 6489 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (ℝ D 𝐺) Fn (𝐴(,)𝐵))
208207adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) ∧ 𝑤 ∈ (𝑧(,)𝑋)) → (ℝ D 𝐺) Fn (𝐴(,)𝐵))
209180sselda 3915 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) ∧ 𝑤 ∈ (𝑧(,)𝑋)) → 𝑤 ∈ (𝐴(,)𝐵))
210 fnfvelrn 6826 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((ℝ D 𝐺) Fn (𝐴(,)𝐵) ∧ 𝑤 ∈ (𝐴(,)𝐵)) → ((ℝ D 𝐺)‘𝑤) ∈ ran (ℝ D 𝐺))
211208, 209, 210syl2anc 587 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) ∧ 𝑤 ∈ (𝑧(,)𝑋)) → ((ℝ D 𝐺)‘𝑤) ∈ ran (ℝ D 𝐺))
212202, 211eqeltrd 2890 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ((((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) ∧ 𝑤 ∈ (𝑧(,)𝑋)) → ((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) ∈ ran (ℝ D 𝐺))
213 eleq1 2877 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) = 0 → (((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) ∈ ran (ℝ D 𝐺) ↔ 0 ∈ ran (ℝ D 𝐺)))
214212, 213syl5ibcom 248 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ((((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) ∧ 𝑤 ∈ (𝑧(,)𝑋)) → (((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) = 0 → 0 ∈ ran (ℝ D 𝐺)))
215214rexlimdva 3243 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (∃𝑤 ∈ (𝑧(,)𝑋)((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) = 0 → 0 ∈ ran (ℝ D 𝐺)))
216199, 215mpd 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → 0 ∈ ran (ℝ D 𝐺))
217216ex 416 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐺𝑋) = (𝐺𝑧) → 0 ∈ ran (ℝ D 𝐺)))
218135, 217sylbid 243 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (((𝐺𝑋) − (𝐺𝑧)) = 0 → 0 ∈ ran (ℝ D 𝐺)))
219218necon3bd 3001 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (¬ 0 ∈ ran (ℝ D 𝐺) → ((𝐺𝑋) − (𝐺𝑧)) ≠ 0))
220129, 219mpd 15 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐺𝑋) − (𝐺𝑧)) ≠ 0)
221220ralrimiva 3149 . . . . . . . . . . . . . . . . . . . . . . 23 (𝜑 → ∀𝑧 ∈ (𝐴(,)𝑋)((𝐺𝑋) − (𝐺𝑧)) ≠ 0)
222221adantr 484 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ∀𝑧 ∈ (𝐴(,)𝑋)((𝐺𝑋) − (𝐺𝑧)) ≠ 0)
223127, 222, 104rspcdva 3573 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((𝐺𝑋) − (𝐺𝑅)) ≠ 0)
224119, 124, 223divcld 11408 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) ∈ ℂ)
22524adantr 484 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐶 ∈ ℂ)
226224, 225subcld 10989 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶) ∈ ℂ)
227226abscld 14791 . . . . . . . . . . . . . . . . . 18 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)) ∈ ℝ)
22828adantr 484 . . . . . . . . . . . . . . . . . 18 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐸 ∈ ℝ)
229109adantr 484 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐷 ∈ ℝ*)
230110adantr 484 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑋 < 𝐷)
231 iccssioo 12797 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝐴 ∈ ℝ*𝐷 ∈ ℝ*) ∧ (𝐴 < 𝑅𝑋 < 𝐷)) → (𝑅[,]𝑋) ⊆ (𝐴(,)𝐷))
23299, 229, 91, 230, 231syl22anc 837 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅[,]𝑋) ⊆ (𝐴(,)𝐷))
2335adantr 484 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐴(,)𝐷) ⊆ (𝐴(,)𝐵))
234232, 233sstrd 3925 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅[,]𝑋) ⊆ (𝐴(,)𝐵))
235 fss 6502 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝐹:(𝐴(,)𝐵)⟶ℝ ∧ ℝ ⊆ ℂ) → 𝐹:(𝐴(,)𝐵)⟶ℂ)
2361, 153, 235sylancl 589 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝜑𝐹:(𝐴(,)𝐵)⟶ℂ)
237 lhop1.if . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝜑 → dom (ℝ D 𝐹) = (𝐴(,)𝐵))
238 dvcn 24534 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((ℝ ⊆ ℂ ∧ 𝐹:(𝐴(,)𝐵)⟶ℂ ∧ (𝐴(,)𝐵) ⊆ ℝ) ∧ dom (ℝ D 𝐹) = (𝐴(,)𝐵)) → 𝐹 ∈ ((𝐴(,)𝐵)–cn→ℂ))
239154, 236, 157, 237, 238syl31anc 1370 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝜑𝐹 ∈ ((𝐴(,)𝐵)–cn→ℂ))
240 cncffvrn 23513 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((ℝ ⊆ ℂ ∧ 𝐹 ∈ ((𝐴(,)𝐵)–cn→ℂ)) → (𝐹 ∈ ((𝐴(,)𝐵)–cn→ℝ) ↔ 𝐹:(𝐴(,)𝐵)⟶ℝ))
241153, 239, 240sylancr 590 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝜑 → (𝐹 ∈ ((𝐴(,)𝐵)–cn→ℝ) ↔ 𝐹:(𝐴(,)𝐵)⟶ℝ))
2421, 241mpbird 260 . . . . . . . . . . . . . . . . . . . . . . 23 (𝜑𝐹 ∈ ((𝐴(,)𝐵)–cn→ℝ))
243242adantr 484 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐹 ∈ ((𝐴(,)𝐵)–cn→ℝ))
244 rescncf 23512 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑅[,]𝑋) ⊆ (𝐴(,)𝐵) → (𝐹 ∈ ((𝐴(,)𝐵)–cn→ℝ) → (𝐹 ↾ (𝑅[,]𝑋)) ∈ ((𝑅[,]𝑋)–cn→ℝ)))
245234, 243, 244sylc 65 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐹 ↾ (𝑅[,]𝑋)) ∈ ((𝑅[,]𝑋)–cn→ℝ))
246163adantr 484 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐺 ∈ ((𝐴(,)𝐵)–cn→ℝ))
247 rescncf 23512 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑅[,]𝑋) ⊆ (𝐴(,)𝐵) → (𝐺 ∈ ((𝐴(,)𝐵)–cn→ℝ) → (𝐺 ↾ (𝑅[,]𝑋)) ∈ ((𝑅[,]𝑋)–cn→ℝ)))
248234, 246, 247sylc 65 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐺 ↾ (𝑅[,]𝑋)) ∈ ((𝑅[,]𝑋)–cn→ℝ))
249153a1i 11 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ℝ ⊆ ℂ)
250236adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐹:(𝐴(,)𝐵)⟶ℂ)
251136a1i 11 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐴(,)𝐵) ⊆ ℝ)
252 iccssre 12810 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝑅 ∈ ℝ ∧ 𝑋 ∈ ℝ) → (𝑅[,]𝑋) ⊆ ℝ)
25364, 92, 252syl2anc 587 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅[,]𝑋) ⊆ ℝ)
25446, 171dvres 24524 . . . . . . . . . . . . . . . . . . . . . . . . 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))))
255249, 250, 251, 253, 254syl22anc 837 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (ℝ D (𝐹 ↾ (𝑅[,]𝑋))) = ((ℝ D 𝐹) ↾ ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋))))
256 iccntr 23436 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝑅 ∈ ℝ ∧ 𝑋 ∈ ℝ) → ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋)) = (𝑅(,)𝑋))
25764, 92, 256syl2anc 587 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋)) = (𝑅(,)𝑋))
258257reseq2d 5819 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((ℝ D 𝐹) ↾ ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋))) = ((ℝ D 𝐹) ↾ (𝑅(,)𝑋)))
259255, 258eqtrd 2833 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (ℝ D (𝐹 ↾ (𝑅[,]𝑋))) = ((ℝ D 𝐹) ↾ (𝑅(,)𝑋)))
260259dmeqd 5739 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom (ℝ D (𝐹 ↾ (𝑅[,]𝑋))) = dom ((ℝ D 𝐹) ↾ (𝑅(,)𝑋)))
26159, 64, 91ltled 10780 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐴𝑅)
262 iooss1 12764 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝐴 ∈ ℝ*𝐴𝑅) → (𝑅(,)𝑋) ⊆ (𝐴(,)𝑋))
26399, 261, 262syl2anc 587 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(,)𝑋) ⊆ (𝐴(,)𝑋))
264111adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑋𝐷)
265 iooss2 12765 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝐷 ∈ ℝ*𝑋𝐷) → (𝐴(,)𝑋) ⊆ (𝐴(,)𝐷))
266229, 264, 265syl2anc 587 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐴(,)𝑋) ⊆ (𝐴(,)𝐷))
267263, 266sstrd 3925 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(,)𝑋) ⊆ (𝐴(,)𝐷))
268267, 233sstrd 3925 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(,)𝑋) ⊆ (𝐴(,)𝐵))
269237adantr 484 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom (ℝ D 𝐹) = (𝐴(,)𝐵))
270268, 269sseqtrrd 3956 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(,)𝑋) ⊆ dom (ℝ D 𝐹))
271 ssdmres 5842 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑅(,)𝑋) ⊆ dom (ℝ D 𝐹) ↔ dom ((ℝ D 𝐹) ↾ (𝑅(,)𝑋)) = (𝑅(,)𝑋))
272270, 271sylib 221 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom ((ℝ D 𝐹) ↾ (𝑅(,)𝑋)) = (𝑅(,)𝑋))
273260, 272eqtrd 2833 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom (ℝ D (𝐹 ↾ (𝑅[,]𝑋))) = (𝑅(,)𝑋))
274156adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐺:(𝐴(,)𝐵)⟶ℂ)
27546, 171dvres 24524 . . . . . . . . . . . . . . . . . . . . . . . . 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))))
276249, 274, 251, 253, 275syl22anc 837 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (ℝ D (𝐺 ↾ (𝑅[,]𝑋))) = ((ℝ D 𝐺) ↾ ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋))))
277257reseq2d 5819 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((ℝ D 𝐺) ↾ ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋))) = ((ℝ D 𝐺) ↾ (𝑅(,)𝑋)))
278276, 277eqtrd 2833 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (ℝ D (𝐺 ↾ (𝑅[,]𝑋))) = ((ℝ D 𝐺) ↾ (𝑅(,)𝑋)))
279278dmeqd 5739 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom (ℝ D (𝐺 ↾ (𝑅[,]𝑋))) = dom ((ℝ D 𝐺) ↾ (𝑅(,)𝑋)))
280158adantr 484 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom (ℝ D 𝐺) = (𝐴(,)𝐵))
281268, 280sseqtrrd 3956 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(,)𝑋) ⊆ dom (ℝ D 𝐺))
282 ssdmres 5842 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝑅(,)𝑋) ⊆ dom (ℝ D 𝐺) ↔ dom ((ℝ D 𝐺) ↾ (𝑅(,)𝑋)) = (𝑅(,)𝑋))
283281, 282sylib 221 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom ((ℝ D 𝐺) ↾ (𝑅(,)𝑋)) = (𝑅(,)𝑋))
284279, 283eqtrd 2833 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom (ℝ D (𝐺 ↾ (𝑅[,]𝑋))) = (𝑅(,)𝑋))
28564, 92, 98, 245, 248, 273, 284cmvth 24604 . . . . . . . . . . . . . . . . . . . 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)))
28664rexrd 10683 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ ℝ*)
287286adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑅 ∈ ℝ*)
288100ad2antrr 725 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑋 ∈ ℝ*)
28964, 92, 98ltled 10780 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅𝑋)
290289adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑅𝑋)
291 ubicc2 12846 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝑅 ∈ ℝ*𝑋 ∈ ℝ*𝑅𝑋) → 𝑋 ∈ (𝑅[,]𝑋))
292287, 288, 290, 291syl3anc 1368 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑋 ∈ (𝑅[,]𝑋))
293292fvresd 6666 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐹 ↾ (𝑅[,]𝑋))‘𝑋) = (𝐹𝑋))
294 lbicc2 12845 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝑅 ∈ ℝ*𝑋 ∈ ℝ*𝑅𝑋) → 𝑅 ∈ (𝑅[,]𝑋))
295287, 288, 290, 294syl3anc 1368 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑅 ∈ (𝑅[,]𝑋))
296295fvresd 6666 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐹 ↾ (𝑅[,]𝑋))‘𝑅) = (𝐹𝑅))
297293, 296oveq12d 7154 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (((𝐹 ↾ (𝑅[,]𝑋))‘𝑋) − ((𝐹 ↾ (𝑅[,]𝑋))‘𝑅)) = ((𝐹𝑋) − (𝐹𝑅)))
298278fveq1d 6648 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((ℝ D (𝐺 ↾ (𝑅[,]𝑋)))‘𝑤) = (((ℝ D 𝐺) ↾ (𝑅(,)𝑋))‘𝑤))
299 fvres 6665 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑤 ∈ (𝑅(,)𝑋) → (((ℝ D 𝐺) ↾ (𝑅(,)𝑋))‘𝑤) = ((ℝ D 𝐺)‘𝑤))
300298, 299sylan9eq 2853 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((ℝ D (𝐺 ↾ (𝑅[,]𝑋)))‘𝑤) = ((ℝ D 𝐺)‘𝑤))
301297, 300oveq12d 7154 . . . . . . . . . . . . . . . . . . . . . . 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)))
302292fvresd 6666 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐺 ↾ (𝑅[,]𝑋))‘𝑋) = (𝐺𝑋))
303295fvresd 6666 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐺 ↾ (𝑅[,]𝑋))‘𝑅) = (𝐺𝑅))
304302, 303oveq12d 7154 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (((𝐺 ↾ (𝑅[,]𝑋))‘𝑋) − ((𝐺 ↾ (𝑅[,]𝑋))‘𝑅)) = ((𝐺𝑋) − (𝐺𝑅)))
305259fveq1d 6648 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((ℝ D (𝐹 ↾ (𝑅[,]𝑋)))‘𝑤) = (((ℝ D 𝐹) ↾ (𝑅(,)𝑋))‘𝑤))
306 fvres 6665 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝑤 ∈ (𝑅(,)𝑋) → (((ℝ D 𝐹) ↾ (𝑅(,)𝑋))‘𝑤) = ((ℝ D 𝐹)‘𝑤))
307305, 306sylan9eq 2853 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((ℝ D (𝐹 ↾ (𝑅[,]𝑋)))‘𝑤) = ((ℝ D 𝐹)‘𝑤))
308304, 307oveq12d 7154 . . . . . . . . . . . . . . . . . . . . . . . 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)))
309124adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐺𝑋) − (𝐺𝑅)) ∈ ℂ)
310 dvf 24520 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (ℝ D 𝐹):dom (ℝ D 𝐹)⟶ℂ
311237feq2d 6474 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝜑 → ((ℝ D 𝐹):dom (ℝ D 𝐹)⟶ℂ ↔ (ℝ D 𝐹):(𝐴(,)𝐵)⟶ℂ))
312310, 311mpbii 236 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝜑 → (ℝ D 𝐹):(𝐴(,)𝐵)⟶ℂ)
313312ad2antrr 725 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (ℝ D 𝐹):(𝐴(,)𝐵)⟶ℂ)
314268sselda 3915 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑤 ∈ (𝐴(,)𝐵))
315313, 314ffvelrnd 6830 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((ℝ D 𝐹)‘𝑤) ∈ ℂ)
316309, 315mulcomd 10654 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (((𝐺𝑋) − (𝐺𝑅)) · ((ℝ D 𝐹)‘𝑤)) = (((ℝ D 𝐹)‘𝑤) · ((𝐺𝑋) − (𝐺𝑅))))
317308, 316eqtrd 2833 . . . . . . . . . . . . . . . . . . . . . . 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))))
318301, 317eqeq12d 2814 . . . . . . . . . . . . . . . . . . . . . 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)))))
319119adantr 484 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐹𝑋) − (𝐹𝑅)) ∈ ℂ)
320205ad2antrr 725 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (ℝ D 𝐺):(𝐴(,)𝐵)⟶ℂ)
321320, 314ffvelrnd 6830 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((ℝ D 𝐺)‘𝑤) ∈ ℂ)
322223adantr 484 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐺𝑋) − (𝐺𝑅)) ≠ 0)
323128ad2antrr 725 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ¬ 0 ∈ ran (ℝ D 𝐺))
324320ffnd 6489 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (ℝ D 𝐺) Fn (𝐴(,)𝐵))
325324, 314, 210syl2anc 587 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((ℝ D 𝐺)‘𝑤) ∈ ran (ℝ D 𝐺))
326 eleq1 2877 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((ℝ D 𝐺)‘𝑤) = 0 → (((ℝ D 𝐺)‘𝑤) ∈ ran (ℝ D 𝐺) ↔ 0 ∈ ran (ℝ D 𝐺)))
327325, 326syl5ibcom 248 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (((ℝ D 𝐺)‘𝑤) = 0 → 0 ∈ ran (ℝ D 𝐺)))
328327necon3bd 3001 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (¬ 0 ∈ ran (ℝ D 𝐺) → ((ℝ D 𝐺)‘𝑤) ≠ 0))
329323, 328mpd 15 . . . . . . . . . . . . . . . . . . . . . . 23 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((ℝ D 𝐺)‘𝑤) ≠ 0)
330319, 309, 315, 321, 322, 329divmuleqd 11454 . . . . . . . . . . . . . . . . . . . . . 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)))))
331318, 330bitr4d 285 . . . . . . . . . . . . . . . . . . . . 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))))
332331rexbidva 3255 . . . . . . . . . . . . . . . . . . . 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))))
333285, 332mpbid 235 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ∃𝑤 ∈ (𝑅(,)𝑋)(((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) = (((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)))
334 fveq2 6646 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑡 = 𝑤 → ((ℝ D 𝐹)‘𝑡) = ((ℝ D 𝐹)‘𝑤))
335 fveq2 6646 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑡 = 𝑤 → ((ℝ D 𝐺)‘𝑡) = ((ℝ D 𝐺)‘𝑤))
336334, 335oveq12d 7154 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑡 = 𝑤 → (((ℝ D 𝐹)‘𝑡) / ((ℝ D 𝐺)‘𝑡)) = (((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)))
337336fvoveq1d 7158 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑡 = 𝑤 → (abs‘((((ℝ D 𝐹)‘𝑡) / ((ℝ D 𝐺)‘𝑡)) − 𝐶)) = (abs‘((((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) − 𝐶)))
338337breq1d 5041 . . . . . . . . . . . . . . . . . . . . . 22 (𝑡 = 𝑤 → ((abs‘((((ℝ D 𝐹)‘𝑡) / ((ℝ D 𝐺)‘𝑡)) − 𝐶)) < 𝐸 ↔ (abs‘((((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) − 𝐶)) < 𝐸))
339 lhop1lem.t . . . . . . . . . . . . . . . . . . . . . . 23 (𝜑 → ∀𝑡 ∈ (𝐴(,)𝐷)(abs‘((((ℝ D 𝐹)‘𝑡) / ((ℝ D 𝐺)‘𝑡)) − 𝐶)) < 𝐸)
340339ad2antrr 725 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ∀𝑡 ∈ (𝐴(,)𝐷)(abs‘((((ℝ D 𝐹)‘𝑡) / ((ℝ D 𝐺)‘𝑡)) − 𝐶)) < 𝐸)
341267sselda 3915 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑤 ∈ (𝐴(,)𝐷))
342338, 340, 341rspcdva 3573 . . . . . . . . . . . . . . . . . . . . 21 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (abs‘((((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) − 𝐶)) < 𝐸)
343 fvoveq1 7159 . . . . . . . . . . . . . . . . . . . . . 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)))
344343breq1d 5041 . . . . . . . . . . . . . . . . . . . . 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))
345342, 344syl5ibrcom 250 . . . . . . . . . . . . . . . . . . . 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))
346345rexlimdva 3243 . . . . . . . . . . . . . . . . . . 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))
347333, 346mpd 15 . . . . . . . . . . . . . . . . . 18 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)) < 𝐸)
348227, 228, 347ltled 10780 . . . . . . . . . . . . . . . . 17 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)) ≤ 𝐸)
349 fveq2 6646 . . . . . . . . . . . . . . . . . . . . . 22 (𝑢 = 𝑅 → (𝐹𝑢) = (𝐹𝑅))
350349oveq2d 7152 . . . . . . . . . . . . . . . . . . . . 21 (𝑢 = 𝑅 → ((𝐹𝑋) − (𝐹𝑢)) = ((𝐹𝑋) − (𝐹𝑅)))
351 fveq2 6646 . . . . . . . . . . . . . . . . . . . . . 22 (𝑢 = 𝑅 → (𝐺𝑢) = (𝐺𝑅))
352351oveq2d 7152 . . . . . . . . . . . . . . . . . . . . 21 (𝑢 = 𝑅 → ((𝐺𝑋) − (𝐺𝑢)) = ((𝐺𝑋) − (𝐺𝑅)))
353350, 352oveq12d 7154 . . . . . . . . . . . . . . . . . . . 20 (𝑢 = 𝑅 → (((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) = (((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))))
354353fvoveq1d 7158 . . . . . . . . . . . . . . . . . . 19 (𝑢 = 𝑅 → (abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) = (abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)))
355354breq1d 5041 . . . . . . . . . . . . . . . . . 18 (𝑢 = 𝑅 → ((abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸 ↔ (abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)) ≤ 𝐸))
356355rspcev 3571 . . . . . . . . . . . . . . . . 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)
357105, 348, 356syl2anc 587 . . . . . . . . . . . . . . . 16 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ∃𝑢 ∈ ((𝐴(ball‘(abs ∘ − ))𝑟) ∩ (𝐴(,)𝑋))(abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸)
358357adantlr 714 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ∃𝑢 ∈ ((𝐴(ball‘(abs ∘ − ))𝑟) ∩ (𝐴(,)𝑋))(abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸)
359 ssrexv 3982 . . . . . . . . . . . . . . 15 (((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))
36057, 358, 359syl2imc 41 . . . . . . . . . . . . . 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))
361360anassrs 471 . . . . . . . . . . . . 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))
362361expimpd 457 . . . . . . . . . . . 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))
363362rexlimdva 3243 . . . . . . . . . . 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))
36449, 363mpd 15 . . . . . . . . . 10 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → ∃𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))(abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸)
365 inss2 4156 . . . . . . . . . . . . . 14 (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})) ⊆ ((𝐴(,)𝑋) ∖ {𝐴})
366 difss 4059 . . . . . . . . . . . . . 14 ((𝐴(,)𝑋) ∖ {𝐴}) ⊆ (𝐴(,)𝑋)
367365, 366sstri 3924 . . . . . . . . . . . . 13 (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})) ⊆ (𝐴(,)𝑋)
368367sseli 3911 . . . . . . . . . . . 12 (𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})) → 𝑢 ∈ (𝐴(,)𝑋))
369 fveq2 6646 . . . . . . . . . . . . . . . . 17 (𝑧 = 𝑢 → (𝐹𝑧) = (𝐹𝑢))
370369oveq2d 7152 . . . . . . . . . . . . . . . 16 (𝑧 = 𝑢 → ((𝐹𝑋) − (𝐹𝑧)) = ((𝐹𝑋) − (𝐹𝑢)))
371 fveq2 6646 . . . . . . . . . . . . . . . . 17 (𝑧 = 𝑢 → (𝐺𝑧) = (𝐺𝑢))
372371oveq2d 7152 . . . . . . . . . . . . . . . 16 (𝑧 = 𝑢 → ((𝐺𝑋) − (𝐺𝑧)) = ((𝐺𝑋) − (𝐺𝑢)))
373370, 372oveq12d 7154 . . . . . . . . . . . . . . 15 (𝑧 = 𝑢 → (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))) = (((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))))
374 eqid 2798 . . . . . . . . . . . . . . 15 (𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) = (𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))
375 ovex 7169 . . . . . . . . . . . . . . 15 (((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) ∈ V
376373, 374, 375fvmpt 6746 . . . . . . . . . . . . . 14 (𝑢 ∈ (𝐴(,)𝑋) → ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) = (((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))))
377376fvoveq1d 7158 . . . . . . . . . . . . 13 (𝑢 ∈ (𝐴(,)𝑋) → (abs‘(((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶)) = (abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)))
378377breq1d 5041 . . . . . . . . . . . 12 (𝑢 ∈ (𝐴(,)𝑋) → ((abs‘(((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶)) ≤ 𝐸 ↔ (abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸))
379368, 378syl 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))
380379rexbiia 3209 . . . . . . . . . 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)
381364, 380sylibr 237 . . . . . . . . 9 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → ∃𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))(abs‘(((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶)) ≤ 𝐸)
382 ovex 7169 . . . . . . . . . . 11 (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))) ∈ V
383382, 374fnmpti 6464 . . . . . . . . . 10 (𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) Fn (𝐴(,)𝑋)
384 fvoveq1 7159 . . . . . . . . . . . 12 (𝑥 = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) → (abs‘(𝑥𝐶)) = (abs‘(((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶)))
385384breq1d 5041 . . . . . . . . . . 11 (𝑥 = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) → ((abs‘(𝑥𝐶)) ≤ 𝐸 ↔ (abs‘(((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶)) ≤ 𝐸))
386385rexima 6978 . . . . . . . . . 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))
387383, 367, 386mp2an 691 . . . . . . . . 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)
388381, 387sylibr 237 . . . . . . . 8 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → ∃𝑥 ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})))(abs‘(𝑥𝐶)) ≤ 𝐸)
389 dfrex2 3202 . . . . . . . 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)
390388, 389sylib 221 . . . . . . 7 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → ¬ ∀𝑥 ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ¬ (abs‘(𝑥𝐶)) ≤ 𝐸)
391 ssrab 4000 . . . . . . . 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))
392391simprbi 500 . . . . . . 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)
393390, 392nsyl 142 . . . . . 6 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → ¬ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸})
394393expr 460 . . . . 5 ((𝜑𝑣 ∈ (TopOpen‘ℂfld)) → (𝐴𝑣 → ¬ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}))
395394ralrimiva 3149 . . . 4 (𝜑 → ∀𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 → ¬ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}))
396 ralinexa 3223 . . . 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}))
397395, 396sylib 221 . . 3 (𝜑 → ¬ ∃𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 ∧ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}))
398 fvoveq1 7159 . . . . . . . 8 (𝑥 = ((𝐹𝑋) / (𝐺𝑋)) → (abs‘(𝑥𝐶)) = (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)))
399398breq1d 5041 . . . . . . 7 (𝑥 = ((𝐹𝑋) / (𝐺𝑋)) → ((abs‘(𝑥𝐶)) ≤ 𝐸 ↔ (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)) ≤ 𝐸))
400399notbid 321 . . . . . 6 (𝑥 = ((𝐹𝑋) / (𝐺𝑋)) → (¬ (abs‘(𝑥𝐶)) ≤ 𝐸 ↔ ¬ (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)) ≤ 𝐸))
401400elrab3 3629 . . . . 5 (((𝐹𝑋) / (𝐺𝑋)) ∈ ℂ → (((𝐹𝑋) / (𝐺𝑋)) ∈ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} ↔ ¬ (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)) ≤ 𝐸))
40221, 401syl 17 . . . 4 (𝜑 → (((𝐹𝑋) / (𝐺𝑋)) ∈ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} ↔ ¬ (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)) ≤ 𝐸))
403 eleq2 2878 . . . . . 6 (𝑢 = {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} → (((𝐹𝑋) / (𝐺𝑋)) ∈ 𝑢 ↔ ((𝐹𝑋) / (𝐺𝑋)) ∈ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}))
404 sseq2 3941 . . . . . . . 8 (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}))
405404anbi2d 631 . . . . . . 7 (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})))
406405rexbidv 3256 . . . . . 6 (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})))
407403, 406imbi12d 348 . . . . 5 (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}))))
4089adantr 484 . . . . . . . . 9 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐹𝑋) ∈ ℂ)
4091ffvelrnda 6829 . . . . . . . . . . 11 ((𝜑𝑧 ∈ (𝐴(,)𝐵)) → (𝐹𝑧) ∈ ℝ)
410131, 409syldan 594 . . . . . . . . . 10 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐹𝑧) ∈ ℝ)
411410recnd 10661 . . . . . . . . 9 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐹𝑧) ∈ ℂ)
412408, 411subcld 10989 . . . . . . . 8 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐹𝑋) − (𝐹𝑧)) ∈ ℂ)
413130, 134subcld 10989 . . . . . . . . 9 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐺𝑋) − (𝐺𝑧)) ∈ ℂ)
414 eldifsn 4680 . . . . . . . . 9 (((𝐺𝑋) − (𝐺𝑧)) ∈ (ℂ ∖ {0}) ↔ (((𝐺𝑋) − (𝐺𝑧)) ∈ ℂ ∧ ((𝐺𝑋) − (𝐺𝑧)) ≠ 0))
415413, 220, 414sylanbrc 586 . . . . . . . 8 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐺𝑋) − (𝐺𝑧)) ∈ (ℂ ∖ {0}))
416 ssidd 3938 . . . . . . . 8 (𝜑 → ℂ ⊆ ℂ)
417 difss 4059 . . . . . . . . 9 (ℂ ∖ {0}) ⊆ ℂ
418417a1i 11 . . . . . . . 8 (𝜑 → (ℂ ∖ {0}) ⊆ ℂ)
41946cnfldtopon 23398 . . . . . . . . . 10 (TopOpen‘ℂfld) ∈ (TopOn‘ℂ)
420 cnex 10610 . . . . . . . . . 10 ℂ ∈ V
421420difexi 5197 . . . . . . . . . 10 (ℂ ∖ {0}) ∈ V
422 txrest 22246 . . . . . . . . . 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}))))
423419, 419, 420, 421, 422mp4an 692 . . . . . . . . 9 (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ↾t (ℂ × (ℂ ∖ {0}))) = (((TopOpen‘ℂfld) ↾t ℂ) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})))
424 unicntop 23401 . . . . . . . . . . . 12 ℂ = (TopOpen‘ℂfld)
425424restid 16702 . . . . . . . . . . 11 ((TopOpen‘ℂfld) ∈ (TopOn‘ℂ) → ((TopOpen‘ℂfld) ↾t ℂ) = (TopOpen‘ℂfld))
426419, 425ax-mp 5 . . . . . . . . . 10 ((TopOpen‘ℂfld) ↾t ℂ) = (TopOpen‘ℂfld)
427426oveq1i 7146 . . . . . . . . 9 (((TopOpen‘ℂfld) ↾t ℂ) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))) = ((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})))
428423, 427eqtr2i 2822 . . . . . . . 8 ((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))) = (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ↾t (ℂ × (ℂ ∖ {0})))
4299subid1d 10978 . . . . . . . . 9 (𝜑 → ((𝐹𝑋) − 0) = (𝐹𝑋))
430 txtopon 22206 . . . . . . . . . . . 12 (((TopOpen‘ℂfld) ∈ (TopOn‘ℂ) ∧ (TopOpen‘ℂfld) ∈ (TopOn‘ℂ)) → ((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ∈ (TopOn‘(ℂ × ℂ)))
431419, 419, 430mp2an 691 . . . . . . . . . . 11 ((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ∈ (TopOn‘(ℂ × ℂ))
432431toponrestid 21536 . . . . . . . . . 10 ((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) = (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ↾t (ℂ × ℂ))
433 limcresi 24498 . . . . . . . . . . . 12 ((𝑧 ∈ ℝ ↦ (𝐹𝑋)) lim 𝐴) ⊆ (((𝑧 ∈ ℝ ↦ (𝐹𝑋)) ↾ (𝐴(,)𝑋)) lim 𝐴)
434 ioossre 12789 . . . . . . . . . . . . . 14 (𝐴(,)𝑋) ⊆ ℝ
435 resmpt 5873 . . . . . . . . . . . . . 14 ((𝐴(,)𝑋) ⊆ ℝ → ((𝑧 ∈ ℝ ↦ (𝐹𝑋)) ↾ (𝐴(,)𝑋)) = (𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑋)))
436434, 435ax-mp 5 . . . . . . . . . . . . 13 ((𝑧 ∈ ℝ ↦ (𝐹𝑋)) ↾ (𝐴(,)𝑋)) = (𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑋))
437436oveq1i 7146 . . . . . . . . . . . 12 (((𝑧 ∈ ℝ ↦ (𝐹𝑋)) ↾ (𝐴(,)𝑋)) lim 𝐴) = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑋)) lim 𝐴)
438433, 437sseqtri 3951 . . . . . . . . . . 11 ((𝑧 ∈ ℝ ↦ (𝐹𝑋)) lim 𝐴) ⊆ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑋)) lim 𝐴)
439 cncfmptc 23527 . . . . . . . . . . . . 13 (((𝐹𝑋) ∈ ℝ ∧ ℝ ⊆ ℂ ∧ ℝ ⊆ ℂ) → (𝑧 ∈ ℝ ↦ (𝐹𝑋)) ∈ (ℝ–cn→ℝ))
4408, 154, 154, 439syl3anc 1368 . . . . . . . . . . . 12 (𝜑 → (𝑧 ∈ ℝ ↦ (𝐹𝑋)) ∈ (ℝ–cn→ℝ))
441 eqidd 2799 . . . . . . . . . . . 12 (𝑧 = 𝐴 → (𝐹𝑋) = (𝐹𝑋))
442440, 39, 441cnmptlimc 24503 . . . . . . . . . . 11 (𝜑 → (𝐹𝑋) ∈ ((𝑧 ∈ ℝ ↦ (𝐹𝑋)) lim 𝐴))
443438, 442sseldi 3913 . . . . . . . . . 10 (𝜑 → (𝐹𝑋) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑋)) lim 𝐴))
444 limcresi 24498 . . . . . . . . . . . 12 (𝐹 lim 𝐴) ⊆ ((𝐹 ↾ (𝐴(,)𝑋)) lim 𝐴)
4451, 114feqresmpt 6710 . . . . . . . . . . . . 13 (𝜑 → (𝐹 ↾ (𝐴(,)𝑋)) = (𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑧)))
446445oveq1d 7151 . . . . . . . . . . . 12 (𝜑 → ((𝐹 ↾ (𝐴(,)𝑋)) lim 𝐴) = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑧)) lim 𝐴))
447444, 446sseqtrid 3967 . . . . . . . . . . 11 (𝜑 → (𝐹 lim 𝐴) ⊆ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑧)) lim 𝐴))
448 lhop1.f0 . . . . . . . . . . 11 (𝜑 → 0 ∈ (𝐹 lim 𝐴))
449447, 448sseldd 3916 . . . . . . . . . 10 (𝜑 → 0 ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑧)) lim 𝐴))
45046subcn 23481 . . . . . . . . . . 11 − ∈ (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) Cn (TopOpen‘ℂfld))
451 0cn 10625 . . . . . . . . . . . 12 0 ∈ ℂ
452 opelxpi 5557 . . . . . . . . . . . 12 (((𝐹𝑋) ∈ ℂ ∧ 0 ∈ ℂ) → ⟨(𝐹𝑋), 0⟩ ∈ (ℂ × ℂ))
4539, 451, 452sylancl 589 . . . . . . . . . . 11 (𝜑 → ⟨(𝐹𝑋), 0⟩ ∈ (ℂ × ℂ))
454431toponunii 21531 . . . . . . . . . . . 12 (ℂ × ℂ) = ((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld))
455454cncnpi 21893 . . . . . . . . . . 11 (( − ∈ (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) Cn (TopOpen‘ℂfld)) ∧ ⟨(𝐹𝑋), 0⟩ ∈ (ℂ × ℂ)) → − ∈ ((((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) CnP (TopOpen‘ℂfld))‘⟨(𝐹𝑋), 0⟩))
456450, 453, 455sylancr 590 . . . . . . . . . 10 (𝜑 → − ∈ ((((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) CnP (TopOpen‘ℂfld))‘⟨(𝐹𝑋), 0⟩))
457408, 411, 416, 416, 46, 432, 443, 449, 456limccnp2 24505 . . . . . . . . 9 (𝜑 → ((𝐹𝑋) − 0) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ ((𝐹𝑋) − (𝐹𝑧))) lim 𝐴))
458429, 457eqeltrrd 2891 . . . . . . . 8 (𝜑 → (𝐹𝑋) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ ((𝐹𝑋) − (𝐹𝑧))) lim 𝐴))
45912subid1d 10978 . . . . . . . . 9 (𝜑 → ((𝐺𝑋) − 0) = (𝐺𝑋))
460 limcresi 24498 . . . . . . . . . . . 12 ((𝑧 ∈ ℝ ↦ (𝐺𝑋)) lim 𝐴) ⊆ (((𝑧 ∈ ℝ ↦ (𝐺𝑋)) ↾ (𝐴(,)𝑋)) lim 𝐴)
461 resmpt 5873 . . . . . . . . . . . . . 14 ((𝐴(,)𝑋) ⊆ ℝ → ((𝑧 ∈ ℝ ↦ (𝐺𝑋)) ↾ (𝐴(,)𝑋)) = (𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑋)))
462434, 461ax-mp 5 . . . . . . . . . . . . 13 ((𝑧 ∈ ℝ ↦ (𝐺𝑋)) ↾ (𝐴(,)𝑋)) = (𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑋))
463462oveq1i 7146 . . . . . . . . . . . 12 (((𝑧 ∈ ℝ ↦ (𝐺𝑋)) ↾ (𝐴(,)𝑋)) lim 𝐴) = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑋)) lim 𝐴)
464460, 463sseqtri 3951 . . . . . . . . . . 11 ((𝑧 ∈ ℝ ↦ (𝐺𝑋)) lim 𝐴) ⊆ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑋)) lim 𝐴)
465 cncfmptc 23527 . . . . . . . . . . . . 13 (((𝐺𝑋) ∈ ℝ ∧ ℝ ⊆ ℂ ∧ ℝ ⊆ ℂ) → (𝑧 ∈ ℝ ↦ (𝐺𝑋)) ∈ (ℝ–cn→ℝ))
46611, 154, 154, 465syl3anc 1368 . . . . . . . . . . . 12 (𝜑 → (𝑧 ∈ ℝ ↦ (𝐺𝑋)) ∈ (ℝ–cn→ℝ))
467 eqidd 2799 . . . . . . . . . . . 12 (𝑧 = 𝐴 → (𝐺𝑋) = (𝐺𝑋))
468466, 39, 467cnmptlimc 24503 . . . . . . . . . . 11 (𝜑 → (𝐺𝑋) ∈ ((𝑧 ∈ ℝ ↦ (𝐺𝑋)) lim 𝐴))
469464, 468sseldi 3913 . . . . . . . . . 10 (𝜑 → (𝐺𝑋) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑋)) lim 𝐴))
470 limcresi 24498 . . . . . . . . . . . 12 (𝐺 lim 𝐴) ⊆ ((𝐺 ↾ (𝐴(,)𝑋)) lim 𝐴)
47110, 114feqresmpt 6710 . . . . . . . . . . . . 13 (𝜑 → (𝐺 ↾ (𝐴(,)𝑋)) = (𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑧)))
472471oveq1d 7151 . . . . . . . . . . . 12 (𝜑 → ((𝐺 ↾ (𝐴(,)𝑋)) lim 𝐴) = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑧)) lim 𝐴))
473470, 472sseqtrid 3967 . . . . . . . . . . 11 (𝜑 → (𝐺 lim 𝐴) ⊆ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑧)) lim 𝐴))
474 lhop1.g0 . . . . . . . . . . 11 (𝜑 → 0 ∈ (𝐺 lim 𝐴))
475473, 474sseldd 3916 . . . . . . . . . 10 (𝜑 → 0 ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑧)) lim 𝐴))
476 opelxpi 5557 . . . . . . . . . . . 12 (((𝐺𝑋) ∈ ℂ ∧ 0 ∈ ℂ) → ⟨(𝐺𝑋), 0⟩ ∈ (ℂ × ℂ))
47712, 451, 476sylancl 589 . . . . . . . . . . 11 (𝜑 → ⟨(𝐺𝑋), 0⟩ ∈ (ℂ × ℂ))
478454cncnpi 21893 . . . . . . . . . . 11 (( − ∈ (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) Cn (TopOpen‘ℂfld)) ∧ ⟨(𝐺𝑋), 0⟩ ∈ (ℂ × ℂ)) → − ∈ ((((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) CnP (TopOpen‘ℂfld))‘⟨(𝐺𝑋), 0⟩))
479450, 477, 478sylancr 590 . . . . . . . . . 10 (𝜑 → − ∈ ((((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) CnP (TopOpen‘ℂfld))‘⟨(𝐺𝑋), 0⟩))
480130, 134, 416, 416, 46, 432, 469, 475, 479limccnp2 24505 . . . . . . . . 9 (𝜑 → ((𝐺𝑋) − 0) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ ((𝐺𝑋) − (𝐺𝑧))) lim 𝐴))
481459, 480eqeltrrd 2891 . . . . . . . 8 (𝜑 → (𝐺𝑋) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ ((𝐺𝑋) − (𝐺𝑧))) lim 𝐴))
482 eqid 2798 . . . . . . . . . 10 ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})) = ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))
48346, 482divcn 23483 . . . . . . . . 9 / ∈ (((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))) Cn (TopOpen‘ℂfld))
484 eldifsn 4680 . . . . . . . . . . 11 ((𝐺𝑋) ∈ (ℂ ∖ {0}) ↔ ((𝐺𝑋) ∈ ℂ ∧ (𝐺𝑋) ≠ 0))
48512, 20, 484sylanbrc 586 . . . . . . . . . 10 (𝜑 → (𝐺𝑋) ∈ (ℂ ∖ {0}))
4869, 485opelxpd 5558 . . . . . . . . 9 (𝜑 → ⟨(𝐹𝑋), (𝐺𝑋)⟩ ∈ (ℂ × (ℂ ∖ {0})))
487 resttopon 21776 . . . . . . . . . . . . 13 (((TopOpen‘ℂfld) ∈ (TopOn‘ℂ) ∧ (ℂ ∖ {0}) ⊆ ℂ) → ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})) ∈ (TopOn‘(ℂ ∖ {0})))
488419, 417, 487mp2an 691 . . . . . . . . . . . 12 ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})) ∈ (TopOn‘(ℂ ∖ {0}))
489 txtopon 22206 . . . . . . . . . . . 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}))))
490419, 488, 489mp2an 691 . . . . . . . . . . 11 ((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))) ∈ (TopOn‘(ℂ × (ℂ ∖ {0})))
491490toponunii 21531 . . . . . . . . . 10 (ℂ × (ℂ ∖ {0})) = ((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})))
492491cncnpi 21893 . . . . . . . . 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)⟩))
493483, 486, 492sylancr 590 . . . . . . . 8 (𝜑 → / ∈ ((((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))) CnP (TopOpen‘ℂfld))‘⟨(𝐹𝑋), (𝐺𝑋)⟩))
494412, 415, 416, 418, 46, 428, 458, 481, 493limccnp2 24505 . . . . . . 7 (𝜑 → ((𝐹𝑋) / (𝐺𝑋)) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) lim 𝐴))
495412, 413, 220divcld 11408 . . . . . . . . 9 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))) ∈ ℂ)
496495fmpttd 6857 . . . . . . . 8 (𝜑 → (𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))):(𝐴(,)𝑋)⟶ℂ)
497434, 153sstri 3924 . . . . . . . . 9 (𝐴(,)𝑋) ⊆ ℂ
498497a1i 11 . . . . . . . 8 (𝜑 → (𝐴(,)𝑋) ⊆ ℂ)
499496, 498, 66, 46ellimc2 24490 . . . . . . 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)))))
500494, 499mpbid 235 . . . . . 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))))
501500simprd 499 . . . . 5 (𝜑 → ∀𝑢 ∈ (TopOpen‘ℂfld)(((𝐹𝑋) / (𝐺𝑋)) ∈ 𝑢 → ∃𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 ∧ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ 𝑢)))
502 notrab 4232 . . . . . 6 (ℂ ∖ {𝑥 ∈ ℂ ∣ (abs‘(𝑥𝐶)) ≤ 𝐸}) = {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}
50368cnmetdval 23386 . . . . . . . . . . . 12 ((𝐶 ∈ ℂ ∧ 𝑥 ∈ ℂ) → (𝐶(abs ∘ − )𝑥) = (abs‘(𝐶𝑥)))
504 abssub 14681 . . . . . . . . . . . 12 ((𝐶 ∈ ℂ ∧ 𝑥 ∈ ℂ) → (abs‘(𝐶𝑥)) = (abs‘(𝑥𝐶)))
505503, 504eqtrd 2833 . . . . . . . . . . 11 ((𝐶 ∈ ℂ ∧ 𝑥 ∈ ℂ) → (𝐶(abs ∘ − )𝑥) = (abs‘(𝑥𝐶)))
50624, 505sylan 583 . . . . . . . . . 10 ((𝜑𝑥 ∈ ℂ) → (𝐶(abs ∘ − )𝑥) = (abs‘(𝑥𝐶)))
507506breq1d 5041 . . . . . . . . 9 ((𝜑𝑥 ∈ ℂ) → ((𝐶(abs ∘ − )𝑥) ≤ 𝐸 ↔ (abs‘(𝑥𝐶)) ≤ 𝐸))
508507rabbidva 3425 . . . . . . . 8 (𝜑 → {𝑥 ∈ ℂ ∣ (𝐶(abs ∘ − )𝑥) ≤ 𝐸} = {𝑥 ∈ ℂ ∣ (abs‘(𝑥𝐶)) ≤ 𝐸})
50932a1i 11 . . . . . . . . 9 (𝜑 → (abs ∘ − ) ∈ (∞Met‘ℂ))
51028rexrd 10683 . . . . . . . . 9 (𝜑𝐸 ∈ ℝ*)
511 eqid 2798 . . . . . . . . . 10 {𝑥 ∈ ℂ ∣ (𝐶(abs ∘ − )𝑥) ≤ 𝐸} = {𝑥 ∈ ℂ ∣ (𝐶(abs ∘ − )𝑥) ≤ 𝐸}
51247, 511blcld 23122 . . . . . . . . 9 (((abs ∘ − ) ∈ (∞Met‘ℂ) ∧ 𝐶 ∈ ℂ ∧ 𝐸 ∈ ℝ*) → {𝑥 ∈ ℂ ∣ (𝐶(abs ∘ − )𝑥) ≤ 𝐸} ∈ (Clsd‘(TopOpen‘ℂfld)))
513509, 24, 510, 512syl3anc 1368 . . . . . . . 8 (𝜑 → {𝑥 ∈ ℂ ∣ (𝐶(abs ∘ − )𝑥) ≤ 𝐸} ∈ (Clsd‘(TopOpen‘ℂfld)))
514508, 513eqeltrrd 2891 . . . . . . 7 (𝜑 → {𝑥 ∈ ℂ ∣ (abs‘(𝑥𝐶)) ≤ 𝐸} ∈ (Clsd‘(TopOpen‘ℂfld)))
515424cldopn 21646 . . . . . . 7 ({𝑥 ∈ ℂ ∣ (abs‘(𝑥𝐶)) ≤ 𝐸} ∈ (Clsd‘(TopOpen‘ℂfld)) → (ℂ ∖ {𝑥 ∈ ℂ ∣ (abs‘(𝑥𝐶)) ≤ 𝐸}) ∈ (TopOpen‘ℂfld))
516514, 515syl 17 . . . . . 6 (𝜑 → (ℂ ∖ {𝑥 ∈ ℂ ∣ (abs‘(𝑥𝐶)) ≤ 𝐸}) ∈ (TopOpen‘ℂfld))
517502, 516eqeltrrid 2895 . . . . 5 (𝜑 → {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} ∈ (TopOpen‘ℂfld))
518407, 501, 517rspcdva 3573 . . . 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})))
519402, 518sylbird 263 . . 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})))
520397, 519mt3d 150 . 2 (𝜑 → (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)) ≤ 𝐸)
52128recnd 10661 . . . 4 (𝜑𝐸 ∈ ℂ)
522521mulid2d 10651 . . 3 (𝜑 → (1 · 𝐸) = 𝐸)
523 1red 10634 . . . 4 (𝜑 → 1 ∈ ℝ)
524 1lt2 11799 . . . . 5 1 < 2
525524a1i 11 . . . 4 (𝜑 → 1 < 2)
526523, 30, 27, 525ltmul1dd 12477 . . 3 (𝜑 → (1 · 𝐸) < (2 · 𝐸))
527522, 526eqbrtrrd 5055 . 2 (𝜑𝐸 < (2 · 𝐸))
52826, 28, 31, 520, 527lelttrd 10790 1 (𝜑 → (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)) < (2 · 𝐸))
 Colors of variables: wff setvar class Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 209   ∧ wa 399   ∧ w3a 1084   = wceq 1538   ∈ wcel 2111   ≠ wne 2987  ∀wral 3106  ∃wrex 3107  {crab 3110  Vcvv 3441   ∖ cdif 3878   ∩ cin 3880   ⊆ wss 3881  ∅c0 4243  {csn 4525  ⟨cop 4531   class class class wbr 5031   ↦ cmpt 5111   × cxp 5518  dom cdm 5520  ran crn 5521   ↾ cres 5522   “ cima 5523   ∘ ccom 5524   Fn wfn 6320  ⟶wf 6321  ‘cfv 6325  (class class class)co 7136  ℂcc 10527  ℝcr 10528  0cc0 10529  1c1 10530   + caddc 10532   · cmul 10534  ℝ*cxr 10666   < clt 10667   ≤ cle 10668   − cmin 10862   / cdiv 11289  2c2 11683  ℝ+crp 12380  (,)cioo 12729  [,]cicc 12732  abscabs 14588   ↾t crest 16689  TopOpenctopn 16690  topGenctg 16706  ∞Metcxmet 20080  ballcbl 20082  ℂfldccnfld 20095  TopOnctopon 21525  Clsdccld 21631  intcnt 21632   Cn ccn 21839   CnP ccnp 21840   ×t ctx 22175  –cn→ccncf 23491   limℂ climc 24475   D cdv 24476 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 2113  ax-9 2121  ax-10 2142  ax-11 2158  ax-12 2175  ax-ext 2770  ax-rep 5155  ax-sep 5168  ax-nul 5175  ax-pow 5232  ax-pr 5296  ax-un 7444  ax-cnex 10585  ax-resscn 10586  ax-1cn 10587  ax-icn 10588  ax-addcl 10589  ax-addrcl 10590  ax-mulcl 10591  ax-mulrcl 10592  ax-mulcom 10593  ax-addass 10594  ax-mulass 10595  ax-distr 10596  ax-i2m1 10597  ax-1ne0 10598  ax-1rid 10599  ax-rnegex 10600  ax-rrecex 10601  ax-cnre 10602  ax-pre-lttri 10603  ax-pre-lttrn 10604  ax-pre-ltadd 10605  ax-pre-mulgt0 10606  ax-pre-sup 10607  ax-addf 10608  ax-mulf 10609 This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3or 1085  df-3an 1086  df-tru 1541  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2598  df-eu 2629  df-clab 2777  df-cleq 2791  df-clel 2870  df-nfc 2938  df-ne 2988  df-nel 3092  df-ral 3111  df-rex 3112  df-reu 3113  df-rmo 3114  df-rab 3115  df-v 3443  df-sbc 3721  df-csb 3829  df-dif 3884  df-un 3886  df-in 3888  df-ss 3898  df-pss 3900  df-nul 4244  df-if 4426  df-pw 4499  df-sn 4526  df-pr 4528  df-tp 4530  df-op 4532  df-uni 4802  df-int 4840  df-iun 4884  df-iin 4885  df-br 5032  df-opab 5094  df-mpt 5112  df-tr 5138  df-id 5426  df-eprel 5431  df-po 5439  df-so 5440  df-fr 5479  df-se 5480  df-we 5481  df-xp 5526  df-rel 5527  df-cnv 5528  df-co 5529  df-dm 5530  df-rn 5531  df-res 5532  df-ima 5533  df-pred 6117  df-ord 6163  df-on 6164  df-lim 6165  df-suc 6166  df-iota 6284  df-fun 6327  df-fn 6328  df-f 6329  df-f1 6330  df-fo 6331  df-f1o 6332  df-fv 6333  df-isom 6334  df-riota 7094  df-ov 7139  df-oprab 7140  df-mpo 7141  df-of 7391  df-om 7564  df-1st 7674  df-2nd 7675  df-supp 7817  df-wrecs 7933  df-recs 7994  df-rdg 8032  df-1o 8088  df-2o 8089  df-oadd 8092  df-er 8275  df-map 8394  df-pm 8395  df-ixp 8448  df-en 8496  df-dom 8497  df-sdom 8498  df-fin 8499  df-fsupp 8821  df-fi 8862  df-sup 8893  df-inf 8894  df-oi 8961  df-card 9355  df-pnf 10669  df-mnf 10670  df-xr 10671  df-ltxr 10672  df-le 10673  df-sub 10864  df-neg 10865  df-div 11290  df-nn 11629  df-2 11691  df-3 11692  df-4 11693  df-5 11694  df-6 11695  df-7 11696  df-8 11697  df-9 11698  df-n0 11889  df-z 11973  df-dec 12090  df-uz 12235  df-q 12340  df-rp 12381  df-xneg 12498  df-xadd 12499  df-xmul 12500  df-ioo 12733  df-ico 12735  df-icc 12736  df-fz 12889  df-fzo 13032  df-seq 13368  df-exp 13429  df-hash 13690  df-cj 14453  df-re 14454  df-im 14455  df-sqrt 14589  df-abs 14590  df-struct 16480  df-ndx 16481  df-slot 16482  df-base 16484  df-sets 16485  df-ress 16486  df-plusg 16573  df-mulr 16574  df-starv 16575  df-sca 16576  df-vsca 16577  df-ip 16578  df-tset 16579  df-ple 16580  df-ds 16582  df-unif 16583  df-hom 16584  df-cco 16585  df-rest 16691  df-topn 16692  df-0g 16710  df-gsum 16711  df-topgen 16712  df-pt 16713  df-prds 16716  df-xrs 16770  df-qtop 16775  df-imas 16776  df-xps 16778  df-mre 16852  df-mrc 16853  df-acs 16855  df-mgm 17847  df-sgrp 17896  df-mnd 17907  df-submnd 17952  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 21509  df-topon 21526  df-topsp 21548  df-bases 21561  df-cld 21634  df-ntr 21635  df-cls 21636  df-nei 21713  df-lp 21751  df-perf 21752  df-cn 21842  df-cnp 21843  df-haus 21930  df-cmp 22002  df-tx 22177  df-hmeo 22370  df-fil 22461  df-fm 22553  df-flim 22554  df-flf 22555  df-xms 22937  df-ms 22938  df-tms 22939  df-cncf 23493  df-limc 24479  df-dv 24480 This theorem is referenced by:  lhop1  24627
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