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Theorem lhop1lem 24910
Description: Lemma for lhop1 24911. (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 12971 . . . . . . . . 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 3902 . . . . . . 7 (𝜑𝑋 ∈ (𝐴(,)𝐵))
81, 7ffvelrnd 6905 . . . . . 6 (𝜑 → (𝐹𝑋) ∈ ℝ)
98recnd 10861 . . . . 5 (𝜑 → (𝐹𝑋) ∈ ℂ)
10 lhop1.g . . . . . . 7 (𝜑𝐺:(𝐴(,)𝐵)⟶ℝ)
1110, 7ffvelrnd 6905 . . . . . 6 (𝜑 → (𝐺𝑋) ∈ ℝ)
1211recnd 10861 . . . . 5 (𝜑 → (𝐺𝑋) ∈ ℂ)
13 lhop1.gn0 . . . . . 6 (𝜑 → ¬ 0 ∈ ran 𝐺)
1410ffnd 6546 . . . . . . . . 9 (𝜑𝐺 Fn (𝐴(,)𝐵))
15 fnfvelrn 6901 . . . . . . . . 9 ((𝐺 Fn (𝐴(,)𝐵) ∧ 𝑋 ∈ (𝐴(,)𝐵)) → (𝐺𝑋) ∈ ran 𝐺)
1614, 7, 15syl2anc 587 . . . . . . . 8 (𝜑 → (𝐺𝑋) ∈ ran 𝐺)
17 eleq1 2825 . . . . . . . 8 ((𝐺𝑋) = 0 → ((𝐺𝑋) ∈ ran 𝐺 ↔ 0 ∈ ran 𝐺))
1816, 17syl5ibcom 248 . . . . . . 7 (𝜑 → ((𝐺𝑋) = 0 → 0 ∈ ran 𝐺))
1918necon3bd 2954 . . . . . 6 (𝜑 → (¬ 0 ∈ ran 𝐺 → (𝐺𝑋) ≠ 0))
2013, 19mpd 15 . . . . 5 (𝜑 → (𝐺𝑋) ≠ 0)
219, 12, 20divcld 11608 . . . 4 (𝜑 → ((𝐹𝑋) / (𝐺𝑋)) ∈ ℂ)
22 limccl 24772 . . . . 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 3899 . . . 4 (𝜑𝐶 ∈ ℂ)
2521, 24subcld 11189 . . 3 (𝜑 → (((𝐹𝑋) / (𝐺𝑋)) − 𝐶) ∈ ℂ)
2625abscld 15000 . 2 (𝜑 → (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)) ∈ ℝ)
27 lhop1lem.e . . 3 (𝜑𝐸 ∈ ℝ+)
2827rpred 12628 . 2 (𝜑𝐸 ∈ ℝ)
29 2re 11904 . . . 4 2 ∈ ℝ
3029a1i 11 . . 3 (𝜑 → 2 ∈ ℝ)
3130, 28remulcld 10863 . 2 (𝜑 → (2 · 𝐸) ∈ ℝ)
32 cnxmet 23670 . . . . . . . . . . . . 13 (abs ∘ − ) ∈ (∞Met‘ℂ)
3332a1i 11 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → (abs ∘ − ) ∈ (∞Met‘ℂ))
34 simprl 771 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → 𝑣 ∈ (TopOpen‘ℂfld))
35 simprr 773 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → 𝐴𝑣)
36 eliooord 12994 . . . . . . . . . . . . . . . 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 12996 . . . . . . . . . . . . . . . 16 (𝐴(,)𝐷) ⊆ ℝ
4140, 6sseldi 3899 . . . . . . . . . . . . . . 15 (𝜑𝑋 ∈ ℝ)
42 difrp 12624 . . . . . . . . . . . . . . 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 2737 . . . . . . . . . . . . . 14 (TopOpen‘ℂfld) = (TopOpen‘ℂfld)
4746cnfldtopn 23679 . . . . . . . . . . . . 13 (TopOpen‘ℂfld) = (MetOpen‘(abs ∘ − ))
4847mopni3 23392 . . . . . . . . . . . 12 ((((abs ∘ − ) ∈ (∞Met‘ℂ) ∧ 𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣) ∧ (𝑋𝐴) ∈ ℝ+) → ∃𝑟 ∈ ℝ+ (𝑟 < (𝑋𝐴) ∧ (𝐴(ball‘(abs ∘ − ))𝑟) ⊆ 𝑣))
4933, 34, 35, 45, 48syl31anc 1375 . . . . . . . . . . 11 ((𝜑 ∧ (𝑣 ∈ (TopOpen‘ℂfld) ∧ 𝐴𝑣)) → ∃𝑟 ∈ ℝ+ (𝑟 < (𝑋𝐴) ∧ (𝐴(ball‘(abs ∘ − ))𝑟) ⊆ 𝑣))
50 ssrin 4148 . . . . . . . . . . . . . . . 16 ((𝐴(ball‘(abs ∘ − ))𝑟) ⊆ 𝑣 → ((𝐴(ball‘(abs ∘ − ))𝑟) ∩ (𝐴(,)𝑋)) ⊆ (𝑣 ∩ (𝐴(,)𝑋)))
51 lbioo 12966 . . . . . . . . . . . . . . . . . . 19 ¬ 𝐴 ∈ (𝐴(,)𝑋)
52 disjsn 4627 . . . . . . . . . . . . . . . . . . 19 (((𝐴(,)𝑋) ∩ {𝐴}) = ∅ ↔ ¬ 𝐴 ∈ (𝐴(,)𝑋))
5351, 52mpbir 234 . . . . . . . . . . . . . . . . . 18 ((𝐴(,)𝑋) ∩ {𝐴}) = ∅
54 disj3 4368 . . . . . . . . . . . . . . . . . 18 (((𝐴(,)𝑋) ∩ {𝐴}) = ∅ ↔ (𝐴(,)𝑋) = ((𝐴(,)𝑋) ∖ {𝐴}))
5553, 54mpbi 233 . . . . . . . . . . . . . . . . 17 (𝐴(,)𝑋) = ((𝐴(,)𝑋) ∖ {𝐴})
5655ineq2i 4124 . . . . . . . . . . . . . . . 16 (𝑣 ∩ (𝐴(,)𝑋)) = (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))
5750, 56sseqtrdi 3951 . . . . . . . . . . . . . . 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 771 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑟 ∈ ℝ+)
6160rpred 12628 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑟 ∈ ℝ)
6261rehalfcld 12077 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) ∈ ℝ)
6359, 62readdcld 10862 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐴 + (𝑟 / 2)) ∈ ℝ)
6458, 63eqeltrid 2842 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ ℝ)
6564recnd 10861 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ ℂ)
6639recnd 10861 . . . . . . . . . . . . . . . . . . . . . . 23 (𝜑𝐴 ∈ ℂ)
6766adantr 484 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐴 ∈ ℂ)
68 eqid 2737 . . . . . . . . . . . . . . . . . . . . . . 23 (abs ∘ − ) = (abs ∘ − )
6968cnmetdval 23668 . . . . . . . . . . . . . . . . . . . . . 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 7223 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑅𝐴) = ((𝐴 + (𝑟 / 2)) − 𝐴)
7261recnd 10861 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑟 ∈ ℂ)
7372halfcld 12075 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) ∈ ℂ)
7467, 73pncan2d 11191 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((𝐴 + (𝑟 / 2)) − 𝐴) = (𝑟 / 2))
7571, 74syl5eq 2790 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅𝐴) = (𝑟 / 2))
7675fveq2d 6721 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (abs‘(𝑅𝐴)) = (abs‘(𝑟 / 2)))
7760rphalfcld 12640 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) ∈ ℝ+)
7877rpred 12628 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) ∈ ℝ)
7977rpge0d 12632 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 0 ≤ (𝑟 / 2))
8078, 79absidd 14986 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (abs‘(𝑟 / 2)) = (𝑟 / 2))
8170, 76, 803eqtrd 2781 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(abs ∘ − )𝐴) = (𝑟 / 2))
82 rphalflt 12615 . . . . . . . . . . . . . . . . . . . . 21 (𝑟 ∈ ℝ+ → (𝑟 / 2) < 𝑟)
8360, 82syl 17 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) < 𝑟)
8481, 83eqbrtrd 5075 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(abs ∘ − )𝐴) < 𝑟)
8532a1i 11 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (abs ∘ − ) ∈ (∞Met‘ℂ))
8661rexrd 10883 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑟 ∈ ℝ*)
87 elbl3 23290 . . . . . . . . . . . . . . . . . . . 20 ((((abs ∘ − ) ∈ (∞Met‘ℂ) ∧ 𝑟 ∈ ℝ*) ∧ (𝐴 ∈ ℂ ∧ 𝑅 ∈ ℂ)) → (𝑅 ∈ (𝐴(ball‘(abs ∘ − ))𝑟) ↔ (𝑅(abs ∘ − )𝐴) < 𝑟))
8885, 86, 67, 65, 87syl22anc 839 . . . . . . . . . . . . . . . . . . 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 12661 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐴 < (𝐴 + (𝑟 / 2)))
9190, 58breqtrrdi 5095 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐴 < 𝑅)
9241adantr 484 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑋 ∈ ℝ)
9392, 59resubcld 11260 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑋𝐴) ∈ ℝ)
94 simprr 773 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑟 < (𝑋𝐴))
9578, 61, 93, 83, 94lttrd 10993 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑟 / 2) < (𝑋𝐴))
9659, 78, 92ltaddsub2d 11433 . . . . . . . . . . . . . . . . . . . . 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 5088 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 < 𝑋)
9959rexrd 10883 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐴 ∈ ℝ*)
10041rexrd 10883 . . . . . . . . . . . . . . . . . . . . 21 (𝜑𝑋 ∈ ℝ*)
101100adantr 484 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑋 ∈ ℝ*)
102 elioo2 12976 . . . . . . . . . . . . . . . . . . . 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 1344 . . . . . . . . . . . . . . . . . 18 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ (𝐴(,)𝑋))
10589, 104elind 4108 . . . . . . . . . . . . . . . . 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 10883 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝜑𝐷 ∈ ℝ*)
11037simprd 499 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝜑𝑋 < 𝐷)
11141, 108, 110ltled 10980 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝜑𝑋𝐷)
112100, 109, 2, 111, 3xrletrd 12752 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝜑𝑋𝐵)
113 iooss2 12971 . . . . . . . . . . . . . . . . . . . . . . . . . . 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 3902 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ (𝐴(,)𝐵))
117107, 116ffvelrnd 6905 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐹𝑅) ∈ ℝ)
118117recnd 10861 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐹𝑅) ∈ ℂ)
119106, 118subcld 11189 . . . . . . . . . . . . . . . . . . . . 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 6905 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐺𝑅) ∈ ℝ)
123122recnd 10861 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐺𝑅) ∈ ℂ)
124120, 123subcld 11189 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((𝐺𝑋) − (𝐺𝑅)) ∈ ℂ)
125 fveq2 6717 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑧 = 𝑅 → (𝐺𝑧) = (𝐺𝑅))
126125oveq2d 7229 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑧 = 𝑅 → ((𝐺𝑋) − (𝐺𝑧)) = ((𝐺𝑋) − (𝐺𝑅)))
127126neeq1d 3000 . . . . . . . . . . . . . . . . . . . . . 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 3901 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑧 ∈ (𝐴(,)𝐵))
13210ffvelrnda 6904 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 ((𝜑𝑧 ∈ (𝐴(,)𝐵)) → (𝐺𝑧) ∈ ℝ)
133131, 132syldan 594 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐺𝑧) ∈ ℝ)
134133recnd 10861 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐺𝑧) ∈ ℂ)
135130, 134subeq0ad 11199 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (((𝐺𝑋) − (𝐺𝑧)) = 0 ↔ (𝐺𝑋) = (𝐺𝑧)))
136 ioossre 12996 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 (𝐴(,)𝐵) ⊆ ℝ
137136, 131sseldi 3899 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑧 ∈ ℝ)
138137adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → 𝑧 ∈ ℝ)
13941ad2antrr 726 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → 𝑋 ∈ ℝ)
140 eliooord 12994 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 10883 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 12751 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (𝜑𝑋 < 𝐵)
149148adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑋 < 𝐵)
150 iccssioo 13004 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝐴 ∈ ℝ*𝐵 ∈ ℝ*) ∧ (𝐴 < 𝑧𝑋 < 𝐵)) → (𝑧[,]𝑋) ⊆ (𝐴(,)𝐵))
151145, 146, 147, 149, 150syl22anc 839 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝑧[,]𝑋) ⊆ (𝐴(,)𝐵))
152151adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (𝑧[,]𝑋) ⊆ (𝐴(,)𝐵))
153 ax-resscn 10786 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ℝ ⊆ ℂ
154153a1i 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (𝜑 → ℝ ⊆ ℂ)
155 fss 6562 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 24818 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 1375 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (𝜑𝐺 ∈ ((𝐴(,)𝐵)–cn→ℂ))
161 cncffvrn 23795 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 726 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → 𝐺 ∈ ((𝐴(,)𝐵)–cn→ℝ))
165 rescncf 23794 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 726 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → 𝐺:(𝐴(,)𝐵)⟶ℂ)
169136a1i 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (𝐴(,)𝐵) ⊆ ℝ)
170152, 136sstrdi 3913 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (𝑧[,]𝑋) ⊆ ℝ)
17146tgioo2 23700 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (topGen‘ran (,)) = ((TopOpen‘ℂfld) ↾t ℝ)
17246, 171dvres 24808 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 839 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (ℝ D (𝐺 ↾ (𝑧[,]𝑋))) = ((ℝ D 𝐺) ↾ ((int‘(topGen‘ran (,)))‘(𝑧[,]𝑋))))
174 iccntr 23718 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 5851 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ((ℝ D 𝐺) ↾ ((int‘(topGen‘ran (,)))‘(𝑧[,]𝑋))) = ((ℝ D 𝐺) ↾ (𝑧(,)𝑋)))
177173, 176eqtrd 2777 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (ℝ D (𝐺 ↾ (𝑧[,]𝑋))) = ((ℝ D 𝐺) ↾ (𝑧(,)𝑋)))
178177dmeqd 5774 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → dom (ℝ D (𝐺 ↾ (𝑧[,]𝑋))) = dom ((ℝ D 𝐺) ↾ (𝑧(,)𝑋)))
179 ioossicc 13021 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 (𝑧(,)𝑋) ⊆ (𝑧[,]𝑋)
180179, 152sstrid 3912 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (𝑧(,)𝑋) ⊆ (𝐴(,)𝐵))
181158ad2antrr 726 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → dom (ℝ D 𝐺) = (𝐴(,)𝐵))
182180, 181sseqtrrd 3942 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (𝑧(,)𝑋) ⊆ dom (ℝ D 𝐺))
183 ssdmres 5874 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 2777 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → dom (ℝ D (𝐺 ↾ (𝑧[,]𝑋))) = (𝑧(,)𝑋))
186137rexrd 10883 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 10980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑧𝑋)
190 ubicc2 13053 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ((𝑧 ∈ ℝ*𝑋 ∈ ℝ*𝑧𝑋) → 𝑋 ∈ (𝑧[,]𝑋))
191186, 187, 189, 190syl3anc 1373 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑋 ∈ (𝑧[,]𝑋))
192191fvresd 6737 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐺 ↾ (𝑧[,]𝑋))‘𝑋) = (𝐺𝑋))
193 lbicc2 13052 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 ((𝑧 ∈ ℝ*𝑋 ∈ ℝ*𝑧𝑋) → 𝑧 ∈ (𝑧[,]𝑋))
194186, 187, 189, 193syl3anc 1373 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → 𝑧 ∈ (𝑧[,]𝑋))
195194fvresd 6737 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐺 ↾ (𝑧[,]𝑋))‘𝑧) = (𝐺𝑧))
196192, 195eqeq12d 2753 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 2743 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ((𝐺 ↾ (𝑧[,]𝑋))‘𝑧) = ((𝐺 ↾ (𝑧[,]𝑋))‘𝑋))
199138, 139, 143, 166, 185, 198rolle 24887 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ∃𝑤 ∈ (𝑧(,)𝑋)((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) = 0)
200177fveq1d 6719 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → ((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) = (((ℝ D 𝐺) ↾ (𝑧(,)𝑋))‘𝑤))
201 fvres 6736 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 (𝑤 ∈ (𝑧(,)𝑋) → (((ℝ D 𝐺) ↾ (𝑧(,)𝑋))‘𝑤) = ((ℝ D 𝐺)‘𝑤))
202200, 201sylan9eq 2798 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 ((((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) ∧ 𝑤 ∈ (𝑧(,)𝑋)) → ((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) = ((ℝ D 𝐺)‘𝑤))
203 dvf 24804 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 (ℝ D 𝐺):dom (ℝ D 𝐺)⟶ℂ
204158feq2d 6531 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 726 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 (((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) → (ℝ D 𝐺):(𝐴(,)𝐵)⟶ℂ)
207206ffnd 6546 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 3901 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 ((((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) ∧ 𝑤 ∈ (𝑧(,)𝑋)) → 𝑤 ∈ (𝐴(,)𝐵))
210 fnfvelrn 6901 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 2838 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 ((((𝜑𝑧 ∈ (𝐴(,)𝑋)) ∧ (𝐺𝑋) = (𝐺𝑧)) ∧ 𝑤 ∈ (𝑧(,)𝑋)) → ((ℝ D (𝐺 ↾ (𝑧[,]𝑋)))‘𝑤) ∈ ran (ℝ D 𝐺))
213 eleq1 2825 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 3203 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 2954 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (¬ 0 ∈ ran (ℝ D 𝐺) → ((𝐺𝑋) − (𝐺𝑧)) ≠ 0))
220129, 219mpd 15 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐺𝑋) − (𝐺𝑧)) ≠ 0)
221220ralrimiva 3105 . . . . . . . . . . . . . . . . . . . . . . 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 3539 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((𝐺𝑋) − (𝐺𝑅)) ≠ 0)
224119, 124, 223divcld 11608 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) ∈ ℂ)
22524adantr 484 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐶 ∈ ℂ)
226224, 225subcld 11189 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶) ∈ ℂ)
227226abscld 15000 . . . . . . . . . . . . . . . . . 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 13004 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝐴 ∈ ℝ*𝐷 ∈ ℝ*) ∧ (𝐴 < 𝑅𝑋 < 𝐷)) → (𝑅[,]𝑋) ⊆ (𝐴(,)𝐷))
23299, 229, 91, 230, 231syl22anc 839 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅[,]𝑋) ⊆ (𝐴(,)𝐷))
2335adantr 484 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐴(,)𝐷) ⊆ (𝐴(,)𝐵))
234232, 233sstrd 3911 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅[,]𝑋) ⊆ (𝐴(,)𝐵))
235 fss 6562 . . . . . . . . . . . . . . . . . . . . . . . . . . 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 24818 . . . . . . . . . . . . . . . . . . . . . . . . . 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 1375 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝜑𝐹 ∈ ((𝐴(,)𝐵)–cn→ℂ))
240 cncffvrn 23795 . . . . . . . . . . . . . . . . . . . . . . . . 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 23794 . . . . . . . . . . . . . . . . . . . . . 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 23794 . . . . . . . . . . . . . . . . . . . . . 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 13017 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝑅 ∈ ℝ ∧ 𝑋 ∈ ℝ) → (𝑅[,]𝑋) ⊆ ℝ)
25364, 92, 252syl2anc 587 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅[,]𝑋) ⊆ ℝ)
25446, 171dvres 24808 . . . . . . . . . . . . . . . . . . . . . . . . 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 839 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (ℝ D (𝐹 ↾ (𝑅[,]𝑋))) = ((ℝ D 𝐹) ↾ ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋))))
256 iccntr 23718 . . . . . . . . . . . . . . . . . . . . . . . . . 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 5851 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((ℝ D 𝐹) ↾ ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋))) = ((ℝ D 𝐹) ↾ (𝑅(,)𝑋)))
259255, 258eqtrd 2777 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (ℝ D (𝐹 ↾ (𝑅[,]𝑋))) = ((ℝ D 𝐹) ↾ (𝑅(,)𝑋)))
260259dmeqd 5774 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom (ℝ D (𝐹 ↾ (𝑅[,]𝑋))) = dom ((ℝ D 𝐹) ↾ (𝑅(,)𝑋)))
26159, 64, 91ltled 10980 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝐴𝑅)
262 iooss1 12970 . . . . . . . . . . . . . . . . . . . . . . . . . . 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 12971 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝐷 ∈ ℝ*𝑋𝐷) → (𝐴(,)𝑋) ⊆ (𝐴(,)𝐷))
266229, 264, 265syl2anc 587 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝐴(,)𝑋) ⊆ (𝐴(,)𝐷))
267263, 266sstrd 3911 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(,)𝑋) ⊆ (𝐴(,)𝐷))
268267, 233sstrd 3911 . . . . . . . . . . . . . . . . . . . . . . . 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 3942 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(,)𝑋) ⊆ dom (ℝ D 𝐹))
271 ssdmres 5874 . . . . . . . . . . . . . . . . . . . . . . 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 2777 . . . . . . . . . . . . . . . . . . . . 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 24808 . . . . . . . . . . . . . . . . . . . . . . . . 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 839 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (ℝ D (𝐺 ↾ (𝑅[,]𝑋))) = ((ℝ D 𝐺) ↾ ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋))))
277257reseq2d 5851 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((ℝ D 𝐺) ↾ ((int‘(topGen‘ran (,)))‘(𝑅[,]𝑋))) = ((ℝ D 𝐺) ↾ (𝑅(,)𝑋)))
278276, 277eqtrd 2777 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (ℝ D (𝐺 ↾ (𝑅[,]𝑋))) = ((ℝ D 𝐺) ↾ (𝑅(,)𝑋)))
279278dmeqd 5774 . . . . . . . . . . . . . . . . . . . . . 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 3942 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (𝑅(,)𝑋) ⊆ dom (ℝ D 𝐺))
282 ssdmres 5874 . . . . . . . . . . . . . . . . . . . . . . 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 2777 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → dom (ℝ D (𝐺 ↾ (𝑅[,]𝑋))) = (𝑅(,)𝑋))
28564, 92, 98, 245, 248, 273, 284cmvth 24888 . . . . . . . . . . . . . . . . . . . 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 10883 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅 ∈ ℝ*)
287286adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑅 ∈ ℝ*)
288100ad2antrr 726 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑋 ∈ ℝ*)
28964, 92, 98ltled 10980 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → 𝑅𝑋)
290289adantr 484 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑅𝑋)
291 ubicc2 13053 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝑅 ∈ ℝ*𝑋 ∈ ℝ*𝑅𝑋) → 𝑋 ∈ (𝑅[,]𝑋))
292287, 288, 290, 291syl3anc 1373 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑋 ∈ (𝑅[,]𝑋))
293292fvresd 6737 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐹 ↾ (𝑅[,]𝑋))‘𝑋) = (𝐹𝑋))
294 lbicc2 13052 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝑅 ∈ ℝ*𝑋 ∈ ℝ*𝑅𝑋) → 𝑅 ∈ (𝑅[,]𝑋))
295287, 288, 290, 294syl3anc 1373 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑅 ∈ (𝑅[,]𝑋))
296295fvresd 6737 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐹 ↾ (𝑅[,]𝑋))‘𝑅) = (𝐹𝑅))
297293, 296oveq12d 7231 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (((𝐹 ↾ (𝑅[,]𝑋))‘𝑋) − ((𝐹 ↾ (𝑅[,]𝑋))‘𝑅)) = ((𝐹𝑋) − (𝐹𝑅)))
298278fveq1d 6719 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((ℝ D (𝐺 ↾ (𝑅[,]𝑋)))‘𝑤) = (((ℝ D 𝐺) ↾ (𝑅(,)𝑋))‘𝑤))
299 fvres 6736 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑤 ∈ (𝑅(,)𝑋) → (((ℝ D 𝐺) ↾ (𝑅(,)𝑋))‘𝑤) = ((ℝ D 𝐺)‘𝑤))
300298, 299sylan9eq 2798 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((ℝ D (𝐺 ↾ (𝑅[,]𝑋)))‘𝑤) = ((ℝ D 𝐺)‘𝑤))
301297, 300oveq12d 7231 . . . . . . . . . . . . . . . . . . . . . . 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 6737 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐺 ↾ (𝑅[,]𝑋))‘𝑋) = (𝐺𝑋))
303295fvresd 6737 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((𝐺 ↾ (𝑅[,]𝑋))‘𝑅) = (𝐺𝑅))
304302, 303oveq12d 7231 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (((𝐺 ↾ (𝑅[,]𝑋))‘𝑋) − ((𝐺 ↾ (𝑅[,]𝑋))‘𝑅)) = ((𝐺𝑋) − (𝐺𝑅)))
305259fveq1d 6719 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → ((ℝ D (𝐹 ↾ (𝑅[,]𝑋)))‘𝑤) = (((ℝ D 𝐹) ↾ (𝑅(,)𝑋))‘𝑤))
306 fvres 6736 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝑤 ∈ (𝑅(,)𝑋) → (((ℝ D 𝐹) ↾ (𝑅(,)𝑋))‘𝑤) = ((ℝ D 𝐹)‘𝑤))
307305, 306sylan9eq 2798 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((ℝ D (𝐹 ↾ (𝑅[,]𝑋)))‘𝑤) = ((ℝ D 𝐹)‘𝑤))
308304, 307oveq12d 7231 . . . . . . . . . . . . . . . . . . . . . . . 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 24804 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (ℝ D 𝐹):dom (ℝ D 𝐹)⟶ℂ
311237feq2d 6531 . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 726 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (ℝ D 𝐹):(𝐴(,)𝐵)⟶ℂ)
314268sselda 3901 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑤 ∈ (𝐴(,)𝐵))
315313, 314ffvelrnd 6905 . . . . . . . . . . . . . . . . . . . . . . . . 25 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ((ℝ D 𝐹)‘𝑤) ∈ ℂ)
316309, 315mulcomd 10854 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (((𝐺𝑋) − (𝐺𝑅)) · ((ℝ D 𝐹)‘𝑤)) = (((ℝ D 𝐹)‘𝑤) · ((𝐺𝑋) − (𝐺𝑅))))
317308, 316eqtrd 2777 . . . . . . . . . . . . . . . . . . . . . . 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 2753 . . . . . . . . . . . . . . . . . . . . . 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 726 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (ℝ D 𝐺):(𝐴(,)𝐵)⟶ℂ)
321320, 314ffvelrnd 6905 . . . . . . . . . . . . . . . . . . . . . . 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 726 . . . . . . . . . . . . . . . . . . . . . . . 24 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ¬ 0 ∈ ran (ℝ D 𝐺))
324320ffnd 6546 . . . . . . . . . . . . . . . . . . . . . . . . . . 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 2825 . . . . . . . . . . . . . . . . . . . . . . . . . 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 2954 . . . . . . . . . . . . . . . . . . . . . . . 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 11654 . . . . . . . . . . . . . . . . . . . . . 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 3215 . . . . . . . . . . . . . . . . . . . 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 6717 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑡 = 𝑤 → ((ℝ D 𝐹)‘𝑡) = ((ℝ D 𝐹)‘𝑤))
335 fveq2 6717 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝑡 = 𝑤 → ((ℝ D 𝐺)‘𝑡) = ((ℝ D 𝐺)‘𝑤))
336334, 335oveq12d 7231 . . . . . . . . . . . . . . . . . . . . . . . 24 (𝑡 = 𝑤 → (((ℝ D 𝐹)‘𝑡) / ((ℝ D 𝐺)‘𝑡)) = (((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)))
337336fvoveq1d 7235 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑡 = 𝑤 → (abs‘((((ℝ D 𝐹)‘𝑡) / ((ℝ D 𝐺)‘𝑡)) − 𝐶)) = (abs‘((((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) − 𝐶)))
338337breq1d 5063 . . . . . . . . . . . . . . . . . . . . . 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 726 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → ∀𝑡 ∈ (𝐴(,)𝐷)(abs‘((((ℝ D 𝐹)‘𝑡) / ((ℝ D 𝐺)‘𝑡)) − 𝐶)) < 𝐸)
341267sselda 3901 . . . . . . . . . . . . . . . . . . . . . 22 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → 𝑤 ∈ (𝐴(,)𝐷))
342338, 340, 341rspcdva 3539 . . . . . . . . . . . . . . . . . . . . 21 (((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) ∧ 𝑤 ∈ (𝑅(,)𝑋)) → (abs‘((((ℝ D 𝐹)‘𝑤) / ((ℝ D 𝐺)‘𝑤)) − 𝐶)) < 𝐸)
343 fvoveq1 7236 . . . . . . . . . . . . . . . . . . . . . 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 5063 . . . . . . . . . . . . . . . . . . . . 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 3203 . . . . . . . . . . . . . . . . . . 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 10980 . . . . . . . . . . . . . . . . 17 ((𝜑 ∧ (𝑟 ∈ ℝ+𝑟 < (𝑋𝐴))) → (abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)) ≤ 𝐸)
349 fveq2 6717 . . . . . . . . . . . . . . . . . . . . . 22 (𝑢 = 𝑅 → (𝐹𝑢) = (𝐹𝑅))
350349oveq2d 7229 . . . . . . . . . . . . . . . . . . . . 21 (𝑢 = 𝑅 → ((𝐹𝑋) − (𝐹𝑢)) = ((𝐹𝑋) − (𝐹𝑅)))
351 fveq2 6717 . . . . . . . . . . . . . . . . . . . . . 22 (𝑢 = 𝑅 → (𝐺𝑢) = (𝐺𝑅))
352351oveq2d 7229 . . . . . . . . . . . . . . . . . . . . 21 (𝑢 = 𝑅 → ((𝐺𝑋) − (𝐺𝑢)) = ((𝐺𝑋) − (𝐺𝑅)))
353350, 352oveq12d 7231 . . . . . . . . . . . . . . . . . . . 20 (𝑢 = 𝑅 → (((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) = (((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))))
354353fvoveq1d 7235 . . . . . . . . . . . . . . . . . . 19 (𝑢 = 𝑅 → (abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) = (abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)))
355354breq1d 5063 . . . . . . . . . . . . . . . . . 18 (𝑢 = 𝑅 → ((abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)) ≤ 𝐸 ↔ (abs‘((((𝐹𝑋) − (𝐹𝑅)) / ((𝐺𝑋) − (𝐺𝑅))) − 𝐶)) ≤ 𝐸))
356355rspcev 3537 . . . . . . . . . . . . . . . . 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 715 . . . . . . . . . . . . . . 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 3968 . . . . . . . . . . . . . . 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 3203 . . . . . . . . . . 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 4144 . . . . . . . . . . . . . 14 (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})) ⊆ ((𝐴(,)𝑋) ∖ {𝐴})
366 difss 4046 . . . . . . . . . . . . . 14 ((𝐴(,)𝑋) ∖ {𝐴}) ⊆ (𝐴(,)𝑋)
367365, 366sstri 3910 . . . . . . . . . . . . 13 (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})) ⊆ (𝐴(,)𝑋)
368367sseli 3896 . . . . . . . . . . . 12 (𝑢 ∈ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴})) → 𝑢 ∈ (𝐴(,)𝑋))
369 fveq2 6717 . . . . . . . . . . . . . . . . 17 (𝑧 = 𝑢 → (𝐹𝑧) = (𝐹𝑢))
370369oveq2d 7229 . . . . . . . . . . . . . . . 16 (𝑧 = 𝑢 → ((𝐹𝑋) − (𝐹𝑧)) = ((𝐹𝑋) − (𝐹𝑢)))
371 fveq2 6717 . . . . . . . . . . . . . . . . 17 (𝑧 = 𝑢 → (𝐺𝑧) = (𝐺𝑢))
372371oveq2d 7229 . . . . . . . . . . . . . . . 16 (𝑧 = 𝑢 → ((𝐺𝑋) − (𝐺𝑧)) = ((𝐺𝑋) − (𝐺𝑢)))
373370, 372oveq12d 7231 . . . . . . . . . . . . . . 15 (𝑧 = 𝑢 → (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))) = (((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))))
374 eqid 2737 . . . . . . . . . . . . . . 15 (𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) = (𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))
375 ovex 7246 . . . . . . . . . . . . . . 15 (((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) ∈ V
376373, 374, 375fvmpt 6818 . . . . . . . . . . . . . 14 (𝑢 ∈ (𝐴(,)𝑋) → ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) = (((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))))
377376fvoveq1d 7235 . . . . . . . . . . . . 13 (𝑢 ∈ (𝐴(,)𝑋) → (abs‘(((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶)) = (abs‘((((𝐹𝑋) − (𝐹𝑢)) / ((𝐺𝑋) − (𝐺𝑢))) − 𝐶)))
378377breq1d 5063 . . . . . . . . . . . 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 3169 . . . . . . . . . 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 7246 . . . . . . . . . . 11 (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))) ∈ V
383382, 374fnmpti 6521 . . . . . . . . . 10 (𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) Fn (𝐴(,)𝑋)
384 fvoveq1 7236 . . . . . . . . . . . 12 (𝑥 = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) → (abs‘(𝑥𝐶)) = (abs‘(((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))))‘𝑢) − 𝐶)))
385384breq1d 5063 . . . . . . . . . . 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 7053 . . . . . . . . . 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 692 . . . . . . . . 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 3161 . . . . . . . 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 3986 . . . . . . . 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 3105 . . . 4 (𝜑 → ∀𝑣 ∈ (TopOpen‘ℂfld)(𝐴𝑣 → ¬ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) “ (𝑣 ∩ ((𝐴(,)𝑋) ∖ {𝐴}))) ⊆ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}))
396 ralinexa 3183 . . . 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 7236 . . . . . . . 8 (𝑥 = ((𝐹𝑋) / (𝐺𝑋)) → (abs‘(𝑥𝐶)) = (abs‘(((𝐹𝑋) / (𝐺𝑋)) − 𝐶)))
399398breq1d 5063 . . . . . . 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 3603 . . . . 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 2826 . . . . . 6 (𝑢 = {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} → (((𝐹𝑋) / (𝐺𝑋)) ∈ 𝑢 ↔ ((𝐹𝑋) / (𝐺𝑋)) ∈ {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}))
404 sseq2 3927 . . . . . . . 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 632 . . . . . . 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 3216 . . . . . 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 6904 . . . . . . . . . . 11 ((𝜑𝑧 ∈ (𝐴(,)𝐵)) → (𝐹𝑧) ∈ ℝ)
410131, 409syldan 594 . . . . . . . . . 10 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐹𝑧) ∈ ℝ)
411410recnd 10861 . . . . . . . . 9 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (𝐹𝑧) ∈ ℂ)
412408, 411subcld 11189 . . . . . . . 8 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐹𝑋) − (𝐹𝑧)) ∈ ℂ)
413130, 134subcld 11189 . . . . . . . . 9 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → ((𝐺𝑋) − (𝐺𝑧)) ∈ ℂ)
414 eldifsn 4700 . . . . . . . . 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 3924 . . . . . . . 8 (𝜑 → ℂ ⊆ ℂ)
417 difss 4046 . . . . . . . . 9 (ℂ ∖ {0}) ⊆ ℂ
418417a1i 11 . . . . . . . 8 (𝜑 → (ℂ ∖ {0}) ⊆ ℂ)
41946cnfldtopon 23680 . . . . . . . . . 10 (TopOpen‘ℂfld) ∈ (TopOn‘ℂ)
420 cnex 10810 . . . . . . . . . 10 ℂ ∈ V
421420difexi 5221 . . . . . . . . . 10 (ℂ ∖ {0}) ∈ V
422 txrest 22528 . . . . . . . . . 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 693 . . . . . . . . 9 (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ↾t (ℂ × (ℂ ∖ {0}))) = (((TopOpen‘ℂfld) ↾t ℂ) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})))
424 unicntop 23683 . . . . . . . . . . . 12 ℂ = (TopOpen‘ℂfld)
425424restid 16938 . . . . . . . . . . 11 ((TopOpen‘ℂfld) ∈ (TopOn‘ℂ) → ((TopOpen‘ℂfld) ↾t ℂ) = (TopOpen‘ℂfld))
426419, 425ax-mp 5 . . . . . . . . . 10 ((TopOpen‘ℂfld) ↾t ℂ) = (TopOpen‘ℂfld)
427426oveq1i 7223 . . . . . . . . 9 (((TopOpen‘ℂfld) ↾t ℂ) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))) = ((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})))
428423, 427eqtr2i 2766 . . . . . . . 8 ((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))) = (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ↾t (ℂ × (ℂ ∖ {0})))
4299subid1d 11178 . . . . . . . . 9 (𝜑 → ((𝐹𝑋) − 0) = (𝐹𝑋))
430 txtopon 22488 . . . . . . . . . . . 12 (((TopOpen‘ℂfld) ∈ (TopOn‘ℂ) ∧ (TopOpen‘ℂfld) ∈ (TopOn‘ℂ)) → ((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ∈ (TopOn‘(ℂ × ℂ)))
431419, 419, 430mp2an 692 . . . . . . . . . . 11 ((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ∈ (TopOn‘(ℂ × ℂ))
432431toponrestid 21818 . . . . . . . . . 10 ((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) = (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) ↾t (ℂ × ℂ))
433 limcresi 24782 . . . . . . . . . . . 12 ((𝑧 ∈ ℝ ↦ (𝐹𝑋)) lim 𝐴) ⊆ (((𝑧 ∈ ℝ ↦ (𝐹𝑋)) ↾ (𝐴(,)𝑋)) lim 𝐴)
434 ioossre 12996 . . . . . . . . . . . . . 14 (𝐴(,)𝑋) ⊆ ℝ
435 resmpt 5905 . . . . . . . . . . . . . 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 7223 . . . . . . . . . . . 12 (((𝑧 ∈ ℝ ↦ (𝐹𝑋)) ↾ (𝐴(,)𝑋)) lim 𝐴) = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑋)) lim 𝐴)
438433, 437sseqtri 3937 . . . . . . . . . . 11 ((𝑧 ∈ ℝ ↦ (𝐹𝑋)) lim 𝐴) ⊆ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑋)) lim 𝐴)
439 cncfmptc 23809 . . . . . . . . . . . . 13 (((𝐹𝑋) ∈ ℝ ∧ ℝ ⊆ ℂ ∧ ℝ ⊆ ℂ) → (𝑧 ∈ ℝ ↦ (𝐹𝑋)) ∈ (ℝ–cn→ℝ))
4408, 154, 154, 439syl3anc 1373 . . . . . . . . . . . 12 (𝜑 → (𝑧 ∈ ℝ ↦ (𝐹𝑋)) ∈ (ℝ–cn→ℝ))
441 eqidd 2738 . . . . . . . . . . . 12 (𝑧 = 𝐴 → (𝐹𝑋) = (𝐹𝑋))
442440, 39, 441cnmptlimc 24787 . . . . . . . . . . 11 (𝜑 → (𝐹𝑋) ∈ ((𝑧 ∈ ℝ ↦ (𝐹𝑋)) lim 𝐴))
443438, 442sseldi 3899 . . . . . . . . . 10 (𝜑 → (𝐹𝑋) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑋)) lim 𝐴))
444 limcresi 24782 . . . . . . . . . . . 12 (𝐹 lim 𝐴) ⊆ ((𝐹 ↾ (𝐴(,)𝑋)) lim 𝐴)
4451, 114feqresmpt 6781 . . . . . . . . . . . . 13 (𝜑 → (𝐹 ↾ (𝐴(,)𝑋)) = (𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑧)))
446445oveq1d 7228 . . . . . . . . . . . 12 (𝜑 → ((𝐹 ↾ (𝐴(,)𝑋)) lim 𝐴) = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑧)) lim 𝐴))
447444, 446sseqtrid 3953 . . . . . . . . . . 11 (𝜑 → (𝐹 lim 𝐴) ⊆ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑧)) lim 𝐴))
448 lhop1.f0 . . . . . . . . . . 11 (𝜑 → 0 ∈ (𝐹 lim 𝐴))
449447, 448sseldd 3902 . . . . . . . . . 10 (𝜑 → 0 ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐹𝑧)) lim 𝐴))
45046subcn 23763 . . . . . . . . . . 11 − ∈ (((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld)) Cn (TopOpen‘ℂfld))
451 0cn 10825 . . . . . . . . . . . 12 0 ∈ ℂ
452 opelxpi 5588 . . . . . . . . . . . 12 (((𝐹𝑋) ∈ ℂ ∧ 0 ∈ ℂ) → ⟨(𝐹𝑋), 0⟩ ∈ (ℂ × ℂ))
4539, 451, 452sylancl 589 . . . . . . . . . . 11 (𝜑 → ⟨(𝐹𝑋), 0⟩ ∈ (ℂ × ℂ))
454431toponunii 21813 . . . . . . . . . . . 12 (ℂ × ℂ) = ((TopOpen‘ℂfld) ×t (TopOpen‘ℂfld))
455454cncnpi 22175 . . . . . . . . . . 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 24789 . . . . . . . . 9 (𝜑 → ((𝐹𝑋) − 0) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ ((𝐹𝑋) − (𝐹𝑧))) lim 𝐴))
458429, 457eqeltrrd 2839 . . . . . . . 8 (𝜑 → (𝐹𝑋) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ ((𝐹𝑋) − (𝐹𝑧))) lim 𝐴))
45912subid1d 11178 . . . . . . . . 9 (𝜑 → ((𝐺𝑋) − 0) = (𝐺𝑋))
460 limcresi 24782 . . . . . . . . . . . 12 ((𝑧 ∈ ℝ ↦ (𝐺𝑋)) lim 𝐴) ⊆ (((𝑧 ∈ ℝ ↦ (𝐺𝑋)) ↾ (𝐴(,)𝑋)) lim 𝐴)
461 resmpt 5905 . . . . . . . . . . . . . 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 7223 . . . . . . . . . . . 12 (((𝑧 ∈ ℝ ↦ (𝐺𝑋)) ↾ (𝐴(,)𝑋)) lim 𝐴) = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑋)) lim 𝐴)
464460, 463sseqtri 3937 . . . . . . . . . . 11 ((𝑧 ∈ ℝ ↦ (𝐺𝑋)) lim 𝐴) ⊆ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑋)) lim 𝐴)
465 cncfmptc 23809 . . . . . . . . . . . . 13 (((𝐺𝑋) ∈ ℝ ∧ ℝ ⊆ ℂ ∧ ℝ ⊆ ℂ) → (𝑧 ∈ ℝ ↦ (𝐺𝑋)) ∈ (ℝ–cn→ℝ))
46611, 154, 154, 465syl3anc 1373 . . . . . . . . . . . 12 (𝜑 → (𝑧 ∈ ℝ ↦ (𝐺𝑋)) ∈ (ℝ–cn→ℝ))
467 eqidd 2738 . . . . . . . . . . . 12 (𝑧 = 𝐴 → (𝐺𝑋) = (𝐺𝑋))
468466, 39, 467cnmptlimc 24787 . . . . . . . . . . 11 (𝜑 → (𝐺𝑋) ∈ ((𝑧 ∈ ℝ ↦ (𝐺𝑋)) lim 𝐴))
469464, 468sseldi 3899 . . . . . . . . . 10 (𝜑 → (𝐺𝑋) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑋)) lim 𝐴))
470 limcresi 24782 . . . . . . . . . . . 12 (𝐺 lim 𝐴) ⊆ ((𝐺 ↾ (𝐴(,)𝑋)) lim 𝐴)
47110, 114feqresmpt 6781 . . . . . . . . . . . . 13 (𝜑 → (𝐺 ↾ (𝐴(,)𝑋)) = (𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑧)))
472471oveq1d 7228 . . . . . . . . . . . 12 (𝜑 → ((𝐺 ↾ (𝐴(,)𝑋)) lim 𝐴) = ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑧)) lim 𝐴))
473470, 472sseqtrid 3953 . . . . . . . . . . 11 (𝜑 → (𝐺 lim 𝐴) ⊆ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑧)) lim 𝐴))
474 lhop1.g0 . . . . . . . . . . 11 (𝜑 → 0 ∈ (𝐺 lim 𝐴))
475473, 474sseldd 3902 . . . . . . . . . 10 (𝜑 → 0 ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (𝐺𝑧)) lim 𝐴))
476 opelxpi 5588 . . . . . . . . . . . 12 (((𝐺𝑋) ∈ ℂ ∧ 0 ∈ ℂ) → ⟨(𝐺𝑋), 0⟩ ∈ (ℂ × ℂ))
47712, 451, 476sylancl 589 . . . . . . . . . . 11 (𝜑 → ⟨(𝐺𝑋), 0⟩ ∈ (ℂ × ℂ))
478454cncnpi 22175 . . . . . . . . . . 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 24789 . . . . . . . . 9 (𝜑 → ((𝐺𝑋) − 0) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ ((𝐺𝑋) − (𝐺𝑧))) lim 𝐴))
481459, 480eqeltrrd 2839 . . . . . . . 8 (𝜑 → (𝐺𝑋) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ ((𝐺𝑋) − (𝐺𝑧))) lim 𝐴))
482 eqid 2737 . . . . . . . . . 10 ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})) = ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))
48346, 482divcn 23765 . . . . . . . . 9 / ∈ (((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))) Cn (TopOpen‘ℂfld))
484 eldifsn 4700 . . . . . . . . . . 11 ((𝐺𝑋) ∈ (ℂ ∖ {0}) ↔ ((𝐺𝑋) ∈ ℂ ∧ (𝐺𝑋) ≠ 0))
48512, 20, 484sylanbrc 586 . . . . . . . . . 10 (𝜑 → (𝐺𝑋) ∈ (ℂ ∖ {0}))
4869, 485opelxpd 5589 . . . . . . . . 9 (𝜑 → ⟨(𝐹𝑋), (𝐺𝑋)⟩ ∈ (ℂ × (ℂ ∖ {0})))
487 resttopon 22058 . . . . . . . . . . . . 13 (((TopOpen‘ℂfld) ∈ (TopOn‘ℂ) ∧ (ℂ ∖ {0}) ⊆ ℂ) → ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})) ∈ (TopOn‘(ℂ ∖ {0})))
488419, 417, 487mp2an 692 . . . . . . . . . . . 12 ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})) ∈ (TopOn‘(ℂ ∖ {0}))
489 txtopon 22488 . . . . . . . . . . . 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 692 . . . . . . . . . . 11 ((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0}))) ∈ (TopOn‘(ℂ × (ℂ ∖ {0})))
491490toponunii 21813 . . . . . . . . . 10 (ℂ × (ℂ ∖ {0})) = ((TopOpen‘ℂfld) ×t ((TopOpen‘ℂfld) ↾t (ℂ ∖ {0})))
492491cncnpi 22175 . . . . . . . . 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 24789 . . . . . . 7 (𝜑 → ((𝐹𝑋) / (𝐺𝑋)) ∈ ((𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))) lim 𝐴))
495412, 413, 220divcld 11608 . . . . . . . . 9 ((𝜑𝑧 ∈ (𝐴(,)𝑋)) → (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧))) ∈ ℂ)
496495fmpttd 6932 . . . . . . . 8 (𝜑 → (𝑧 ∈ (𝐴(,)𝑋) ↦ (((𝐹𝑋) − (𝐹𝑧)) / ((𝐺𝑋) − (𝐺𝑧)))):(𝐴(,)𝑋)⟶ℂ)
497434, 153sstri 3910 . . . . . . . . 9 (𝐴(,)𝑋) ⊆ ℂ
498497a1i 11 . . . . . . . 8 (𝜑 → (𝐴(,)𝑋) ⊆ ℂ)
499496, 498, 66, 46ellimc2 24774 . . . . . . 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 4226 . . . . . 6 (ℂ ∖ {𝑥 ∈ ℂ ∣ (abs‘(𝑥𝐶)) ≤ 𝐸}) = {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸}
50368cnmetdval 23668 . . . . . . . . . . . 12 ((𝐶 ∈ ℂ ∧ 𝑥 ∈ ℂ) → (𝐶(abs ∘ − )𝑥) = (abs‘(𝐶𝑥)))
504 abssub 14890 . . . . . . . . . . . 12 ((𝐶 ∈ ℂ ∧ 𝑥 ∈ ℂ) → (abs‘(𝐶𝑥)) = (abs‘(𝑥𝐶)))
505503, 504eqtrd 2777 . . . . . . . . . . 11 ((𝐶 ∈ ℂ ∧ 𝑥 ∈ ℂ) → (𝐶(abs ∘ − )𝑥) = (abs‘(𝑥𝐶)))
50624, 505sylan 583 . . . . . . . . . 10 ((𝜑𝑥 ∈ ℂ) → (𝐶(abs ∘ − )𝑥) = (abs‘(𝑥𝐶)))
507506breq1d 5063 . . . . . . . . 9 ((𝜑𝑥 ∈ ℂ) → ((𝐶(abs ∘ − )𝑥) ≤ 𝐸 ↔ (abs‘(𝑥𝐶)) ≤ 𝐸))
508507rabbidva 3388 . . . . . . . 8 (𝜑 → {𝑥 ∈ ℂ ∣ (𝐶(abs ∘ − )𝑥) ≤ 𝐸} = {𝑥 ∈ ℂ ∣ (abs‘(𝑥𝐶)) ≤ 𝐸})
50932a1i 11 . . . . . . . . 9 (𝜑 → (abs ∘ − ) ∈ (∞Met‘ℂ))
51028rexrd 10883 . . . . . . . . 9 (𝜑𝐸 ∈ ℝ*)
511 eqid 2737 . . . . . . . . . 10 {𝑥 ∈ ℂ ∣ (𝐶(abs ∘ − )𝑥) ≤ 𝐸} = {𝑥 ∈ ℂ ∣ (𝐶(abs ∘ − )𝑥) ≤ 𝐸}
51247, 511blcld 23403 . . . . . . . . 9 (((abs ∘ − ) ∈ (∞Met‘ℂ) ∧ 𝐶 ∈ ℂ ∧ 𝐸 ∈ ℝ*) → {𝑥 ∈ ℂ ∣ (𝐶(abs ∘ − )𝑥) ≤ 𝐸} ∈ (Clsd‘(TopOpen‘ℂfld)))
513509, 24, 510, 512syl3anc 1373 . . . . . . . 8 (𝜑 → {𝑥 ∈ ℂ ∣ (𝐶(abs ∘ − )𝑥) ≤ 𝐸} ∈ (Clsd‘(TopOpen‘ℂfld)))
514508, 513eqeltrrd 2839 . . . . . . 7 (𝜑 → {𝑥 ∈ ℂ ∣ (abs‘(𝑥𝐶)) ≤ 𝐸} ∈ (Clsd‘(TopOpen‘ℂfld)))
515424cldopn 21928 . . . . . . 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 2843 . . . . 5 (𝜑 → {𝑥 ∈ ℂ ∣ ¬ (abs‘(𝑥𝐶)) ≤ 𝐸} ∈ (TopOpen‘ℂfld))
518407, 501, 517rspcdva 3539 . . . 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 10861 . . . 4 (𝜑𝐸 ∈ ℂ)
522521mulid2d 10851 . . 3 (𝜑 → (1 · 𝐸) = 𝐸)
523 1red 10834 . . . 4 (𝜑 → 1 ∈ ℝ)
524 1lt2 12001 . . . . 5 1 < 2
525524a1i 11 . . . 4 (𝜑 → 1 < 2)
526523, 30, 27, 525ltmul1dd 12683 . . 3 (𝜑 → (1 · 𝐸) < (2 · 𝐸))
527522, 526eqbrtrrd 5077 . 2 (𝜑𝐸 < (2 · 𝐸))
52826, 28, 31, 520, 527lelttrd 10990 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 1089   = wceq 1543  wcel 2110  wne 2940  wral 3061  wrex 3062  {crab 3065  Vcvv 3408  cdif 3863  cin 3865  wss 3866  c0 4237  {csn 4541  cop 4547   class class class wbr 5053  cmpt 5135   × cxp 5549  dom cdm 5551  ran crn 5552  cres 5553  cima 5554  ccom 5555   Fn wfn 6375  wf 6376  cfv 6380  (class class class)co 7213  cc 10727  cr 10728  0cc0 10729  1c1 10730   + caddc 10732   · cmul 10734  *cxr 10866   < clt 10867  cle 10868  cmin 11062   / cdiv 11489  2c2 11885  +crp 12586  (,)cioo 12935  [,]cicc 12938  abscabs 14797  t crest 16925  TopOpenctopn 16926  topGenctg 16942  ∞Metcxmet 20348  ballcbl 20350  fldccnfld 20363  TopOnctopon 21807  Clsdccld 21913  intcnt 21914   Cn ccn 22121   CnP ccnp 22122   ×t ctx 22457  cnccncf 23773   lim climc 24759   D cdv 24760
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1803  ax-4 1817  ax-5 1918  ax-6 1976  ax-7 2016  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2158  ax-12 2175  ax-ext 2708  ax-rep 5179  ax-sep 5192  ax-nul 5199  ax-pow 5258  ax-pr 5322  ax-un 7523  ax-cnex 10785  ax-resscn 10786  ax-1cn 10787  ax-icn 10788  ax-addcl 10789  ax-addrcl 10790  ax-mulcl 10791  ax-mulrcl 10792  ax-mulcom 10793  ax-addass 10794  ax-mulass 10795  ax-distr 10796  ax-i2m1 10797  ax-1ne0 10798  ax-1rid 10799  ax-rnegex 10800  ax-rrecex 10801  ax-cnre 10802  ax-pre-lttri 10803  ax-pre-lttrn 10804  ax-pre-ltadd 10805  ax-pre-mulgt0 10806  ax-pre-sup 10807  ax-addf 10808  ax-mulf 10809
This theorem depends on definitions:  df-bi 210  df-an 400  df-or 848  df-3or 1090  df-3an 1091  df-tru 1546  df-fal 1556  df-ex 1788  df-nf 1792  df-sb 2071  df-mo 2539  df-eu 2568  df-clab 2715  df-cleq 2729  df-clel 2816  df-nfc 2886  df-ne 2941  df-nel 3047  df-ral 3066  df-rex 3067  df-reu 3068  df-rmo 3069  df-rab 3070  df-v 3410  df-sbc 3695  df-csb 3812  df-dif 3869  df-un 3871  df-in 3873  df-ss 3883  df-pss 3885  df-nul 4238  df-if 4440  df-pw 4515  df-sn 4542  df-pr 4544  df-tp 4546  df-op 4548  df-uni 4820  df-int 4860  df-iun 4906  df-iin 4907  df-br 5054  df-opab 5116  df-mpt 5136  df-tr 5162  df-id 5455  df-eprel 5460  df-po 5468  df-so 5469  df-fr 5509  df-se 5510  df-we 5511  df-xp 5557  df-rel 5558  df-cnv 5559  df-co 5560  df-dm 5561  df-rn 5562  df-res 5563  df-ima 5564  df-pred 6160  df-ord 6216  df-on 6217  df-lim 6218  df-suc 6219  df-iota 6338  df-fun 6382  df-fn 6383  df-f 6384  df-f1 6385  df-fo 6386  df-f1o 6387  df-fv 6388  df-isom 6389  df-riota 7170  df-ov 7216  df-oprab 7217  df-mpo 7218  df-of 7469  df-om 7645  df-1st 7761  df-2nd 7762  df-supp 7904  df-wrecs 8047  df-recs 8108  df-rdg 8146  df-1o 8202  df-2o 8203  df-er 8391  df-map 8510  df-pm 8511  df-ixp 8579  df-en 8627  df-dom 8628  df-sdom 8629  df-fin 8630  df-fsupp 8986  df-fi 9027  df-sup 9058  df-inf 9059  df-oi 9126  df-card 9555  df-pnf 10869  df-mnf 10870  df-xr 10871  df-ltxr 10872  df-le 10873  df-sub 11064  df-neg 11065  df-div 11490  df-nn 11831  df-2 11893  df-3 11894  df-4 11895  df-5 11896  df-6 11897  df-7 11898  df-8 11899  df-9 11900  df-n0 12091  df-z 12177  df-dec 12294  df-uz 12439  df-q 12545  df-rp 12587  df-xneg 12704  df-xadd 12705  df-xmul 12706  df-ioo 12939  df-ico 12941  df-icc 12942  df-fz 13096  df-fzo 13239  df-seq 13575  df-exp 13636  df-hash 13897  df-cj 14662  df-re 14663  df-im 14664  df-sqrt 14798  df-abs 14799  df-struct 16700  df-sets 16717  df-slot 16735  df-ndx 16745  df-base 16761  df-ress 16785  df-plusg 16815  df-mulr 16816  df-starv 16817  df-sca 16818  df-vsca 16819  df-ip 16820  df-tset 16821  df-ple 16822  df-ds 16824  df-unif 16825  df-hom 16826  df-cco 16827  df-rest 16927  df-topn 16928  df-0g 16946  df-gsum 16947  df-topgen 16948  df-pt 16949  df-prds 16952  df-xrs 17007  df-qtop 17012  df-imas 17013  df-xps 17015  df-mre 17089  df-mrc 17090  df-acs 17092  df-mgm 18114  df-sgrp 18163  df-mnd 18174  df-submnd 18219  df-mulg 18489  df-cntz 18711  df-cmn 19172  df-psmet 20355  df-xmet 20356  df-met 20357  df-bl 20358  df-mopn 20359  df-fbas 20360  df-fg 20361  df-cnfld 20364  df-top 21791  df-topon 21808  df-topsp 21830  df-bases 21843  df-cld 21916  df-ntr 21917  df-cls 21918  df-nei 21995  df-lp 22033  df-perf 22034  df-cn 22124  df-cnp 22125  df-haus 22212  df-cmp 22284  df-tx 22459  df-hmeo 22652  df-fil 22743  df-fm 22835  df-flim 22836  df-flf 22837  df-xms 23218  df-ms 23219  df-tms 23220  df-cncf 23775  df-limc 24763  df-dv 24764
This theorem is referenced by:  lhop1  24911
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