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Theorem cncfiooicclem1 43324
Description: A continuous function 𝐹 on an open interval (𝐴(,)𝐵) can be extended to a continuous function 𝐺 on the corresponding closed interval, if it has a finite right limit 𝑅 in 𝐴 and a finite left limit 𝐿 in 𝐵. 𝐹 can be complex-valued. This lemma assumes 𝐴 < 𝐵, the invoking theorem drops this assumption. (Contributed by Glauco Siliprandi, 11-Dec-2019.)
Hypotheses
Ref Expression
cncfiooicclem1.x 𝑥𝜑
cncfiooicclem1.g 𝐺 = (𝑥 ∈ (𝐴[,]𝐵) ↦ if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))))
cncfiooicclem1.a (𝜑𝐴 ∈ ℝ)
cncfiooicclem1.b (𝜑𝐵 ∈ ℝ)
cncfiooicclem1.altb (𝜑𝐴 < 𝐵)
cncfiooicclem1.f (𝜑𝐹 ∈ ((𝐴(,)𝐵)–cn→ℂ))
cncfiooicclem1.l (𝜑𝐿 ∈ (𝐹 lim 𝐵))
cncfiooicclem1.r (𝜑𝑅 ∈ (𝐹 lim 𝐴))
Assertion
Ref Expression
cncfiooicclem1 (𝜑𝐺 ∈ ((𝐴[,]𝐵)–cn→ℂ))
Distinct variable groups:   𝑥,𝐴   𝑥,𝐵   𝑥,𝐹   𝑥,𝐿   𝑥,𝑅
Allowed substitution hints:   𝜑(𝑥)   𝐺(𝑥)

Proof of Theorem cncfiooicclem1
Dummy variable 𝑦 is distinct from all other variables.
StepHypRef Expression
1 cncfiooicclem1.x . . . 4 𝑥𝜑
2 limccl 24944 . . . . . . 7 (𝐹 lim 𝐴) ⊆ ℂ
3 cncfiooicclem1.r . . . . . . 7 (𝜑𝑅 ∈ (𝐹 lim 𝐴))
42, 3sselid 3915 . . . . . 6 (𝜑𝑅 ∈ ℂ)
54ad2antrr 722 . . . . 5 (((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ 𝑥 = 𝐴) → 𝑅 ∈ ℂ)
6 limccl 24944 . . . . . . . 8 (𝐹 lim 𝐵) ⊆ ℂ
7 cncfiooicclem1.l . . . . . . . 8 (𝜑𝐿 ∈ (𝐹 lim 𝐵))
86, 7sselid 3915 . . . . . . 7 (𝜑𝐿 ∈ ℂ)
98ad3antrrr 726 . . . . . 6 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ 𝑥 = 𝐵) → 𝐿 ∈ ℂ)
10 simplll 771 . . . . . . 7 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → 𝜑)
11 orel1 885 . . . . . . . . . . 11 𝑥 = 𝐴 → ((𝑥 = 𝐴𝑥 = 𝐵) → 𝑥 = 𝐵))
1211con3dimp 408 . . . . . . . . . 10 ((¬ 𝑥 = 𝐴 ∧ ¬ 𝑥 = 𝐵) → ¬ (𝑥 = 𝐴𝑥 = 𝐵))
13 vex 3426 . . . . . . . . . . 11 𝑥 ∈ V
1413elpr 4581 . . . . . . . . . 10 (𝑥 ∈ {𝐴, 𝐵} ↔ (𝑥 = 𝐴𝑥 = 𝐵))
1512, 14sylnibr 328 . . . . . . . . 9 ((¬ 𝑥 = 𝐴 ∧ ¬ 𝑥 = 𝐵) → ¬ 𝑥 ∈ {𝐴, 𝐵})
1615adantll 710 . . . . . . . 8 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → ¬ 𝑥 ∈ {𝐴, 𝐵})
17 simpllr 772 . . . . . . . . . 10 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → 𝑥 ∈ (𝐴[,]𝐵))
18 cncfiooicclem1.a . . . . . . . . . . . . 13 (𝜑𝐴 ∈ ℝ)
1918rexrd 10956 . . . . . . . . . . . 12 (𝜑𝐴 ∈ ℝ*)
2010, 19syl 17 . . . . . . . . . . 11 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → 𝐴 ∈ ℝ*)
21 cncfiooicclem1.b . . . . . . . . . . . . 13 (𝜑𝐵 ∈ ℝ)
2221rexrd 10956 . . . . . . . . . . . 12 (𝜑𝐵 ∈ ℝ*)
2310, 22syl 17 . . . . . . . . . . 11 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → 𝐵 ∈ ℝ*)
24 cncfiooicclem1.altb . . . . . . . . . . . . 13 (𝜑𝐴 < 𝐵)
2518, 21, 24ltled 11053 . . . . . . . . . . . 12 (𝜑𝐴𝐵)
2610, 25syl 17 . . . . . . . . . . 11 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → 𝐴𝐵)
27 prunioo 13142 . . . . . . . . . . 11 ((𝐴 ∈ ℝ*𝐵 ∈ ℝ*𝐴𝐵) → ((𝐴(,)𝐵) ∪ {𝐴, 𝐵}) = (𝐴[,]𝐵))
2820, 23, 26, 27syl3anc 1369 . . . . . . . . . 10 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → ((𝐴(,)𝐵) ∪ {𝐴, 𝐵}) = (𝐴[,]𝐵))
2917, 28eleqtrrd 2842 . . . . . . . . 9 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → 𝑥 ∈ ((𝐴(,)𝐵) ∪ {𝐴, 𝐵}))
30 elun 4079 . . . . . . . . 9 (𝑥 ∈ ((𝐴(,)𝐵) ∪ {𝐴, 𝐵}) ↔ (𝑥 ∈ (𝐴(,)𝐵) ∨ 𝑥 ∈ {𝐴, 𝐵}))
3129, 30sylib 217 . . . . . . . 8 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → (𝑥 ∈ (𝐴(,)𝐵) ∨ 𝑥 ∈ {𝐴, 𝐵}))
32 orel2 887 . . . . . . . 8 𝑥 ∈ {𝐴, 𝐵} → ((𝑥 ∈ (𝐴(,)𝐵) ∨ 𝑥 ∈ {𝐴, 𝐵}) → 𝑥 ∈ (𝐴(,)𝐵)))
3316, 31, 32sylc 65 . . . . . . 7 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → 𝑥 ∈ (𝐴(,)𝐵))
34 cncfiooicclem1.f . . . . . . . . 9 (𝜑𝐹 ∈ ((𝐴(,)𝐵)–cn→ℂ))
35 cncff 23962 . . . . . . . . 9 (𝐹 ∈ ((𝐴(,)𝐵)–cn→ℂ) → 𝐹:(𝐴(,)𝐵)⟶ℂ)
3634, 35syl 17 . . . . . . . 8 (𝜑𝐹:(𝐴(,)𝐵)⟶ℂ)
3736ffvelrnda 6943 . . . . . . 7 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → (𝐹𝑥) ∈ ℂ)
3810, 33, 37syl2anc 583 . . . . . 6 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → (𝐹𝑥) ∈ ℂ)
399, 38ifclda 4491 . . . . 5 (((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) → if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)) ∈ ℂ)
405, 39ifclda 4491 . . . 4 ((𝜑𝑥 ∈ (𝐴[,]𝐵)) → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) ∈ ℂ)
41 cncfiooicclem1.g . . . 4 𝐺 = (𝑥 ∈ (𝐴[,]𝐵) ↦ if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))))
421, 40, 41fmptdf 6973 . . 3 (𝜑𝐺:(𝐴[,]𝐵)⟶ℂ)
43 elun 4079 . . . . . . 7 (𝑦 ∈ ((𝐴(,)𝐵) ∪ {𝐴, 𝐵}) ↔ (𝑦 ∈ (𝐴(,)𝐵) ∨ 𝑦 ∈ {𝐴, 𝐵}))
4419, 22, 25, 27syl3anc 1369 . . . . . . . 8 (𝜑 → ((𝐴(,)𝐵) ∪ {𝐴, 𝐵}) = (𝐴[,]𝐵))
4544eleq2d 2824 . . . . . . 7 (𝜑 → (𝑦 ∈ ((𝐴(,)𝐵) ∪ {𝐴, 𝐵}) ↔ 𝑦 ∈ (𝐴[,]𝐵)))
4643, 45bitr3id 284 . . . . . 6 (𝜑 → ((𝑦 ∈ (𝐴(,)𝐵) ∨ 𝑦 ∈ {𝐴, 𝐵}) ↔ 𝑦 ∈ (𝐴[,]𝐵)))
4746biimpar 477 . . . . 5 ((𝜑𝑦 ∈ (𝐴[,]𝐵)) → (𝑦 ∈ (𝐴(,)𝐵) ∨ 𝑦 ∈ {𝐴, 𝐵}))
48 ioossicc 13094 . . . . . . . . . . . . 13 (𝐴(,)𝐵) ⊆ (𝐴[,]𝐵)
49 fssres 6624 . . . . . . . . . . . . 13 ((𝐺:(𝐴[,]𝐵)⟶ℂ ∧ (𝐴(,)𝐵) ⊆ (𝐴[,]𝐵)) → (𝐺 ↾ (𝐴(,)𝐵)):(𝐴(,)𝐵)⟶ℂ)
5042, 48, 49sylancl 585 . . . . . . . . . . . 12 (𝜑 → (𝐺 ↾ (𝐴(,)𝐵)):(𝐴(,)𝐵)⟶ℂ)
5150feqmptd 6819 . . . . . . . . . . 11 (𝜑 → (𝐺 ↾ (𝐴(,)𝐵)) = (𝑦 ∈ (𝐴(,)𝐵) ↦ ((𝐺 ↾ (𝐴(,)𝐵))‘𝑦)))
52 nfmpt1 5178 . . . . . . . . . . . . . . . 16 𝑥(𝑥 ∈ (𝐴[,]𝐵) ↦ if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))))
5341, 52nfcxfr 2904 . . . . . . . . . . . . . . 15 𝑥𝐺
54 nfcv 2906 . . . . . . . . . . . . . . 15 𝑥(𝐴(,)𝐵)
5553, 54nfres 5882 . . . . . . . . . . . . . 14 𝑥(𝐺 ↾ (𝐴(,)𝐵))
56 nfcv 2906 . . . . . . . . . . . . . 14 𝑥𝑦
5755, 56nffv 6766 . . . . . . . . . . . . 13 𝑥((𝐺 ↾ (𝐴(,)𝐵))‘𝑦)
58 nfcv 2906 . . . . . . . . . . . . . 14 𝑦(𝐺 ↾ (𝐴(,)𝐵))
59 nfcv 2906 . . . . . . . . . . . . . 14 𝑦𝑥
6058, 59nffv 6766 . . . . . . . . . . . . 13 𝑦((𝐺 ↾ (𝐴(,)𝐵))‘𝑥)
61 fveq2 6756 . . . . . . . . . . . . 13 (𝑦 = 𝑥 → ((𝐺 ↾ (𝐴(,)𝐵))‘𝑦) = ((𝐺 ↾ (𝐴(,)𝐵))‘𝑥))
6257, 60, 61cbvmpt 5181 . . . . . . . . . . . 12 (𝑦 ∈ (𝐴(,)𝐵) ↦ ((𝐺 ↾ (𝐴(,)𝐵))‘𝑦)) = (𝑥 ∈ (𝐴(,)𝐵) ↦ ((𝐺 ↾ (𝐴(,)𝐵))‘𝑥))
6362a1i 11 . . . . . . . . . . 11 (𝜑 → (𝑦 ∈ (𝐴(,)𝐵) ↦ ((𝐺 ↾ (𝐴(,)𝐵))‘𝑦)) = (𝑥 ∈ (𝐴(,)𝐵) ↦ ((𝐺 ↾ (𝐴(,)𝐵))‘𝑥)))
64 fvres 6775 . . . . . . . . . . . . . 14 (𝑥 ∈ (𝐴(,)𝐵) → ((𝐺 ↾ (𝐴(,)𝐵))‘𝑥) = (𝐺𝑥))
6564adantl 481 . . . . . . . . . . . . 13 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → ((𝐺 ↾ (𝐴(,)𝐵))‘𝑥) = (𝐺𝑥))
66 simpr 484 . . . . . . . . . . . . . . 15 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → 𝑥 ∈ (𝐴(,)𝐵))
6748, 66sselid 3915 . . . . . . . . . . . . . 14 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → 𝑥 ∈ (𝐴[,]𝐵))
684adantr 480 . . . . . . . . . . . . . . 15 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → 𝑅 ∈ ℂ)
698ad2antrr 722 . . . . . . . . . . . . . . . 16 (((𝜑𝑥 ∈ (𝐴(,)𝐵)) ∧ 𝑥 = 𝐵) → 𝐿 ∈ ℂ)
7037adantr 480 . . . . . . . . . . . . . . . 16 (((𝜑𝑥 ∈ (𝐴(,)𝐵)) ∧ ¬ 𝑥 = 𝐵) → (𝐹𝑥) ∈ ℂ)
7169, 70ifclda 4491 . . . . . . . . . . . . . . 15 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)) ∈ ℂ)
7268, 71ifcld 4502 . . . . . . . . . . . . . 14 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) ∈ ℂ)
7341fvmpt2 6868 . . . . . . . . . . . . . 14 ((𝑥 ∈ (𝐴[,]𝐵) ∧ if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) ∈ ℂ) → (𝐺𝑥) = if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))))
7467, 72, 73syl2anc 583 . . . . . . . . . . . . 13 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → (𝐺𝑥) = if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))))
75 elioo4g 13068 . . . . . . . . . . . . . . . . . . . . 21 (𝑥 ∈ (𝐴(,)𝐵) ↔ ((𝐴 ∈ ℝ*𝐵 ∈ ℝ*𝑥 ∈ ℝ) ∧ (𝐴 < 𝑥𝑥 < 𝐵)))
7675biimpi 215 . . . . . . . . . . . . . . . . . . . 20 (𝑥 ∈ (𝐴(,)𝐵) → ((𝐴 ∈ ℝ*𝐵 ∈ ℝ*𝑥 ∈ ℝ) ∧ (𝐴 < 𝑥𝑥 < 𝐵)))
7776simpld 494 . . . . . . . . . . . . . . . . . . 19 (𝑥 ∈ (𝐴(,)𝐵) → (𝐴 ∈ ℝ*𝐵 ∈ ℝ*𝑥 ∈ ℝ))
7877simp1d 1140 . . . . . . . . . . . . . . . . . 18 (𝑥 ∈ (𝐴(,)𝐵) → 𝐴 ∈ ℝ*)
79 elioore 13038 . . . . . . . . . . . . . . . . . . 19 (𝑥 ∈ (𝐴(,)𝐵) → 𝑥 ∈ ℝ)
8079rexrd 10956 . . . . . . . . . . . . . . . . . 18 (𝑥 ∈ (𝐴(,)𝐵) → 𝑥 ∈ ℝ*)
81 eliooord 13067 . . . . . . . . . . . . . . . . . . 19 (𝑥 ∈ (𝐴(,)𝐵) → (𝐴 < 𝑥𝑥 < 𝐵))
8281simpld 494 . . . . . . . . . . . . . . . . . 18 (𝑥 ∈ (𝐴(,)𝐵) → 𝐴 < 𝑥)
83 xrltne 12826 . . . . . . . . . . . . . . . . . 18 ((𝐴 ∈ ℝ*𝑥 ∈ ℝ*𝐴 < 𝑥) → 𝑥𝐴)
8478, 80, 82, 83syl3anc 1369 . . . . . . . . . . . . . . . . 17 (𝑥 ∈ (𝐴(,)𝐵) → 𝑥𝐴)
8584adantl 481 . . . . . . . . . . . . . . . 16 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → 𝑥𝐴)
8685neneqd 2947 . . . . . . . . . . . . . . 15 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → ¬ 𝑥 = 𝐴)
8786iffalsed 4467 . . . . . . . . . . . . . 14 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) = if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)))
8881simprd 495 . . . . . . . . . . . . . . . . . 18 (𝑥 ∈ (𝐴(,)𝐵) → 𝑥 < 𝐵)
8979, 88ltned 11041 . . . . . . . . . . . . . . . . 17 (𝑥 ∈ (𝐴(,)𝐵) → 𝑥𝐵)
9089neneqd 2947 . . . . . . . . . . . . . . . 16 (𝑥 ∈ (𝐴(,)𝐵) → ¬ 𝑥 = 𝐵)
9190iffalsed 4467 . . . . . . . . . . . . . . 15 (𝑥 ∈ (𝐴(,)𝐵) → if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)) = (𝐹𝑥))
9291adantl 481 . . . . . . . . . . . . . 14 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)) = (𝐹𝑥))
9387, 92eqtrd 2778 . . . . . . . . . . . . 13 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) = (𝐹𝑥))
9465, 74, 933eqtrd 2782 . . . . . . . . . . . 12 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → ((𝐺 ↾ (𝐴(,)𝐵))‘𝑥) = (𝐹𝑥))
951, 94mpteq2da 5168 . . . . . . . . . . 11 (𝜑 → (𝑥 ∈ (𝐴(,)𝐵) ↦ ((𝐺 ↾ (𝐴(,)𝐵))‘𝑥)) = (𝑥 ∈ (𝐴(,)𝐵) ↦ (𝐹𝑥)))
9651, 63, 953eqtrd 2782 . . . . . . . . . 10 (𝜑 → (𝐺 ↾ (𝐴(,)𝐵)) = (𝑥 ∈ (𝐴(,)𝐵) ↦ (𝐹𝑥)))
9736feqmptd 6819 . . . . . . . . . . 11 (𝜑𝐹 = (𝑥 ∈ (𝐴(,)𝐵) ↦ (𝐹𝑥)))
98 ioosscn 13070 . . . . . . . . . . . . 13 (𝐴(,)𝐵) ⊆ ℂ
9998a1i 11 . . . . . . . . . . . 12 (𝜑 → (𝐴(,)𝐵) ⊆ ℂ)
100 ssid 3939 . . . . . . . . . . . 12 ℂ ⊆ ℂ
101 eqid 2738 . . . . . . . . . . . . 13 (TopOpen‘ℂfld) = (TopOpen‘ℂfld)
102 eqid 2738 . . . . . . . . . . . . 13 ((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) = ((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵))
103101cnfldtop 23853 . . . . . . . . . . . . . . 15 (TopOpen‘ℂfld) ∈ Top
104 unicntop 23855 . . . . . . . . . . . . . . . 16 ℂ = (TopOpen‘ℂfld)
105104restid 17061 . . . . . . . . . . . . . . 15 ((TopOpen‘ℂfld) ∈ Top → ((TopOpen‘ℂfld) ↾t ℂ) = (TopOpen‘ℂfld))
106103, 105ax-mp 5 . . . . . . . . . . . . . 14 ((TopOpen‘ℂfld) ↾t ℂ) = (TopOpen‘ℂfld)
107106eqcomi 2747 . . . . . . . . . . . . 13 (TopOpen‘ℂfld) = ((TopOpen‘ℂfld) ↾t ℂ)
108101, 102, 107cncfcn 23979 . . . . . . . . . . . 12 (((𝐴(,)𝐵) ⊆ ℂ ∧ ℂ ⊆ ℂ) → ((𝐴(,)𝐵)–cn→ℂ) = (((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) Cn (TopOpen‘ℂfld)))
10999, 100, 108sylancl 585 . . . . . . . . . . 11 (𝜑 → ((𝐴(,)𝐵)–cn→ℂ) = (((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) Cn (TopOpen‘ℂfld)))
11034, 97, 1093eltr3d 2853 . . . . . . . . . 10 (𝜑 → (𝑥 ∈ (𝐴(,)𝐵) ↦ (𝐹𝑥)) ∈ (((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) Cn (TopOpen‘ℂfld)))
11196, 110eqeltrd 2839 . . . . . . . . 9 (𝜑 → (𝐺 ↾ (𝐴(,)𝐵)) ∈ (((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) Cn (TopOpen‘ℂfld)))
112104restuni 22221 . . . . . . . . . . 11 (((TopOpen‘ℂfld) ∈ Top ∧ (𝐴(,)𝐵) ⊆ ℂ) → (𝐴(,)𝐵) = ((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)))
113103, 98, 112mp2an 688 . . . . . . . . . 10 (𝐴(,)𝐵) = ((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵))
114113cncnpi 22337 . . . . . . . . 9 (((𝐺 ↾ (𝐴(,)𝐵)) ∈ (((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) Cn (TopOpen‘ℂfld)) ∧ 𝑦 ∈ (𝐴(,)𝐵)) → (𝐺 ↾ (𝐴(,)𝐵)) ∈ ((((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
115111, 114sylan 579 . . . . . . . 8 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (𝐺 ↾ (𝐴(,)𝐵)) ∈ ((((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
116103a1i 11 . . . . . . . . . . . 12 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (TopOpen‘ℂfld) ∈ Top)
11748a1i 11 . . . . . . . . . . . 12 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (𝐴(,)𝐵) ⊆ (𝐴[,]𝐵))
118 ovex 7288 . . . . . . . . . . . . 13 (𝐴[,]𝐵) ∈ V
119118a1i 11 . . . . . . . . . . . 12 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (𝐴[,]𝐵) ∈ V)
120 restabs 22224 . . . . . . . . . . . 12 (((TopOpen‘ℂfld) ∈ Top ∧ (𝐴(,)𝐵) ⊆ (𝐴[,]𝐵) ∧ (𝐴[,]𝐵) ∈ V) → (((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ↾t (𝐴(,)𝐵)) = ((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)))
121116, 117, 119, 120syl3anc 1369 . . . . . . . . . . 11 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ↾t (𝐴(,)𝐵)) = ((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)))
122121eqcomd 2744 . . . . . . . . . 10 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → ((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) = (((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ↾t (𝐴(,)𝐵)))
123122oveq1d 7270 . . . . . . . . 9 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) CnP (TopOpen‘ℂfld)) = ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ↾t (𝐴(,)𝐵)) CnP (TopOpen‘ℂfld)))
124123fveq1d 6758 . . . . . . . 8 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → ((((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) CnP (TopOpen‘ℂfld))‘𝑦) = (((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ↾t (𝐴(,)𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
125115, 124eleqtrd 2841 . . . . . . 7 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (𝐺 ↾ (𝐴(,)𝐵)) ∈ (((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ↾t (𝐴(,)𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
126 resttop 22219 . . . . . . . . . 10 (((TopOpen‘ℂfld) ∈ Top ∧ (𝐴[,]𝐵) ∈ V) → ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ∈ Top)
127103, 118, 126mp2an 688 . . . . . . . . 9 ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ∈ Top
128127a1i 11 . . . . . . . 8 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ∈ Top)
12948a1i 11 . . . . . . . . . 10 (𝜑 → (𝐴(,)𝐵) ⊆ (𝐴[,]𝐵))
13018, 21iccssred 13095 . . . . . . . . . . . 12 (𝜑 → (𝐴[,]𝐵) ⊆ ℝ)
131 ax-resscn 10859 . . . . . . . . . . . 12 ℝ ⊆ ℂ
132130, 131sstrdi 3929 . . . . . . . . . . 11 (𝜑 → (𝐴[,]𝐵) ⊆ ℂ)
133104restuni 22221 . . . . . . . . . . 11 (((TopOpen‘ℂfld) ∈ Top ∧ (𝐴[,]𝐵) ⊆ ℂ) → (𝐴[,]𝐵) = ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))
134103, 132, 133sylancr 586 . . . . . . . . . 10 (𝜑 → (𝐴[,]𝐵) = ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))
135129, 134sseqtrd 3957 . . . . . . . . 9 (𝜑 → (𝐴(,)𝐵) ⊆ ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))
136135adantr 480 . . . . . . . 8 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (𝐴(,)𝐵) ⊆ ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))
137 retop 23831 . . . . . . . . . . . . . 14 (topGen‘ran (,)) ∈ Top
138137a1i 11 . . . . . . . . . . . . 13 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (topGen‘ran (,)) ∈ Top)
139 ioossre 13069 . . . . . . . . . . . . . . 15 (𝐴(,)𝐵) ⊆ ℝ
140 difss 4062 . . . . . . . . . . . . . . 15 (ℝ ∖ (𝐴[,]𝐵)) ⊆ ℝ
141139, 140unssi 4115 . . . . . . . . . . . . . 14 ((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵))) ⊆ ℝ
142141a1i 11 . . . . . . . . . . . . 13 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → ((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵))) ⊆ ℝ)
143 ssun1 4102 . . . . . . . . . . . . . 14 (𝐴(,)𝐵) ⊆ ((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵)))
144143a1i 11 . . . . . . . . . . . . 13 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (𝐴(,)𝐵) ⊆ ((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵))))
145 uniretop 23832 . . . . . . . . . . . . . 14 ℝ = (topGen‘ran (,))
146145ntrss 22114 . . . . . . . . . . . . 13 (((topGen‘ran (,)) ∈ Top ∧ ((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵))) ⊆ ℝ ∧ (𝐴(,)𝐵) ⊆ ((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵)))) → ((int‘(topGen‘ran (,)))‘(𝐴(,)𝐵)) ⊆ ((int‘(topGen‘ran (,)))‘((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵)))))
147138, 142, 144, 146syl3anc 1369 . . . . . . . . . . . 12 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → ((int‘(topGen‘ran (,)))‘(𝐴(,)𝐵)) ⊆ ((int‘(topGen‘ran (,)))‘((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵)))))
148 simpr 484 . . . . . . . . . . . . 13 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → 𝑦 ∈ (𝐴(,)𝐵))
149 ioontr 42939 . . . . . . . . . . . . 13 ((int‘(topGen‘ran (,)))‘(𝐴(,)𝐵)) = (𝐴(,)𝐵)
150148, 149eleqtrrdi 2850 . . . . . . . . . . . 12 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → 𝑦 ∈ ((int‘(topGen‘ran (,)))‘(𝐴(,)𝐵)))
151147, 150sseldd 3918 . . . . . . . . . . 11 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → 𝑦 ∈ ((int‘(topGen‘ran (,)))‘((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵)))))
15248, 148sselid 3915 . . . . . . . . . . 11 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → 𝑦 ∈ (𝐴[,]𝐵))
153151, 152elind 4124 . . . . . . . . . 10 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → 𝑦 ∈ (((int‘(topGen‘ran (,)))‘((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵)))) ∩ (𝐴[,]𝐵)))
154130adantr 480 . . . . . . . . . . 11 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (𝐴[,]𝐵) ⊆ ℝ)
155 eqid 2738 . . . . . . . . . . . 12 ((topGen‘ran (,)) ↾t (𝐴[,]𝐵)) = ((topGen‘ran (,)) ↾t (𝐴[,]𝐵))
156145, 155restntr 22241 . . . . . . . . . . 11 (((topGen‘ran (,)) ∈ Top ∧ (𝐴[,]𝐵) ⊆ ℝ ∧ (𝐴(,)𝐵) ⊆ (𝐴[,]𝐵)) → ((int‘((topGen‘ran (,)) ↾t (𝐴[,]𝐵)))‘(𝐴(,)𝐵)) = (((int‘(topGen‘ran (,)))‘((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵)))) ∩ (𝐴[,]𝐵)))
157138, 154, 117, 156syl3anc 1369 . . . . . . . . . 10 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → ((int‘((topGen‘ran (,)) ↾t (𝐴[,]𝐵)))‘(𝐴(,)𝐵)) = (((int‘(topGen‘ran (,)))‘((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵)))) ∩ (𝐴[,]𝐵)))
158153, 157eleqtrrd 2842 . . . . . . . . 9 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → 𝑦 ∈ ((int‘((topGen‘ran (,)) ↾t (𝐴[,]𝐵)))‘(𝐴(,)𝐵)))
159101tgioo2 23872 . . . . . . . . . . . . . . 15 (topGen‘ran (,)) = ((TopOpen‘ℂfld) ↾t ℝ)
160159a1i 11 . . . . . . . . . . . . . 14 (𝜑 → (topGen‘ran (,)) = ((TopOpen‘ℂfld) ↾t ℝ))
161160oveq1d 7270 . . . . . . . . . . . . 13 (𝜑 → ((topGen‘ran (,)) ↾t (𝐴[,]𝐵)) = (((TopOpen‘ℂfld) ↾t ℝ) ↾t (𝐴[,]𝐵)))
162103a1i 11 . . . . . . . . . . . . . 14 (𝜑 → (TopOpen‘ℂfld) ∈ Top)
163 reex 10893 . . . . . . . . . . . . . . 15 ℝ ∈ V
164163a1i 11 . . . . . . . . . . . . . 14 (𝜑 → ℝ ∈ V)
165 restabs 22224 . . . . . . . . . . . . . 14 (((TopOpen‘ℂfld) ∈ Top ∧ (𝐴[,]𝐵) ⊆ ℝ ∧ ℝ ∈ V) → (((TopOpen‘ℂfld) ↾t ℝ) ↾t (𝐴[,]𝐵)) = ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))
166162, 130, 164, 165syl3anc 1369 . . . . . . . . . . . . 13 (𝜑 → (((TopOpen‘ℂfld) ↾t ℝ) ↾t (𝐴[,]𝐵)) = ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))
167161, 166eqtrd 2778 . . . . . . . . . . . 12 (𝜑 → ((topGen‘ran (,)) ↾t (𝐴[,]𝐵)) = ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))
168167fveq2d 6760 . . . . . . . . . . 11 (𝜑 → (int‘((topGen‘ran (,)) ↾t (𝐴[,]𝐵))) = (int‘((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵))))
169168fveq1d 6758 . . . . . . . . . 10 (𝜑 → ((int‘((topGen‘ran (,)) ↾t (𝐴[,]𝐵)))‘(𝐴(,)𝐵)) = ((int‘((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))‘(𝐴(,)𝐵)))
170169adantr 480 . . . . . . . . 9 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → ((int‘((topGen‘ran (,)) ↾t (𝐴[,]𝐵)))‘(𝐴(,)𝐵)) = ((int‘((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))‘(𝐴(,)𝐵)))
171158, 170eleqtrd 2841 . . . . . . . 8 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → 𝑦 ∈ ((int‘((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))‘(𝐴(,)𝐵)))
172134feq2d 6570 . . . . . . . . . 10 (𝜑 → (𝐺:(𝐴[,]𝐵)⟶ℂ ↔ 𝐺: ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵))⟶ℂ))
17342, 172mpbid 231 . . . . . . . . 9 (𝜑𝐺: ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵))⟶ℂ)
174173adantr 480 . . . . . . . 8 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → 𝐺: ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵))⟶ℂ)
175 eqid 2738 . . . . . . . . 9 ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) = ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵))
176175, 104cnprest 22348 . . . . . . . 8 (((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ∈ Top ∧ (𝐴(,)𝐵) ⊆ ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵))) ∧ (𝑦 ∈ ((int‘((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))‘(𝐴(,)𝐵)) ∧ 𝐺: ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵))⟶ℂ)) → (𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦) ↔ (𝐺 ↾ (𝐴(,)𝐵)) ∈ (((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ↾t (𝐴(,)𝐵)) CnP (TopOpen‘ℂfld))‘𝑦)))
177128, 136, 171, 174, 176syl22anc 835 . . . . . . 7 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦) ↔ (𝐺 ↾ (𝐴(,)𝐵)) ∈ (((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ↾t (𝐴(,)𝐵)) CnP (TopOpen‘ℂfld))‘𝑦)))
178125, 177mpbird 256 . . . . . 6 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → 𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
179 elpri 4580 . . . . . . 7 (𝑦 ∈ {𝐴, 𝐵} → (𝑦 = 𝐴𝑦 = 𝐵))
180 iftrue 4462 . . . . . . . . . . . . 13 (𝑥 = 𝐴 → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) = 𝑅)
181 lbicc2 13125 . . . . . . . . . . . . . 14 ((𝐴 ∈ ℝ*𝐵 ∈ ℝ*𝐴𝐵) → 𝐴 ∈ (𝐴[,]𝐵))
18219, 22, 25, 181syl3anc 1369 . . . . . . . . . . . . 13 (𝜑𝐴 ∈ (𝐴[,]𝐵))
18341, 180, 182, 3fvmptd3 6880 . . . . . . . . . . . 12 (𝜑 → (𝐺𝐴) = 𝑅)
18497eqcomd 2744 . . . . . . . . . . . . . . . 16 (𝜑 → (𝑥 ∈ (𝐴(,)𝐵) ↦ (𝐹𝑥)) = 𝐹)
18596, 184eqtr2d 2779 . . . . . . . . . . . . . . 15 (𝜑𝐹 = (𝐺 ↾ (𝐴(,)𝐵)))
186185oveq1d 7270 . . . . . . . . . . . . . 14 (𝜑 → (𝐹 lim 𝐴) = ((𝐺 ↾ (𝐴(,)𝐵)) lim 𝐴))
1873, 186eleqtrd 2841 . . . . . . . . . . . . 13 (𝜑𝑅 ∈ ((𝐺 ↾ (𝐴(,)𝐵)) lim 𝐴))
18818, 21, 24, 42limciccioolb 43052 . . . . . . . . . . . . 13 (𝜑 → ((𝐺 ↾ (𝐴(,)𝐵)) lim 𝐴) = (𝐺 lim 𝐴))
189187, 188eleqtrd 2841 . . . . . . . . . . . 12 (𝜑𝑅 ∈ (𝐺 lim 𝐴))
190183, 189eqeltrd 2839 . . . . . . . . . . 11 (𝜑 → (𝐺𝐴) ∈ (𝐺 lim 𝐴))
191 eqid 2738 . . . . . . . . . . . . 13 ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) = ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵))
192101, 191cnplimc 24956 . . . . . . . . . . . 12 (((𝐴[,]𝐵) ⊆ ℂ ∧ 𝐴 ∈ (𝐴[,]𝐵)) → (𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐴) ↔ (𝐺:(𝐴[,]𝐵)⟶ℂ ∧ (𝐺𝐴) ∈ (𝐺 lim 𝐴))))
193132, 182, 192syl2anc 583 . . . . . . . . . . 11 (𝜑 → (𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐴) ↔ (𝐺:(𝐴[,]𝐵)⟶ℂ ∧ (𝐺𝐴) ∈ (𝐺 lim 𝐴))))
19442, 190, 193mpbir2and 709 . . . . . . . . . 10 (𝜑𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐴))
195194adantr 480 . . . . . . . . 9 ((𝜑𝑦 = 𝐴) → 𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐴))
196 fveq2 6756 . . . . . . . . . . 11 (𝑦 = 𝐴 → ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦) = ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐴))
197196eqcomd 2744 . . . . . . . . . 10 (𝑦 = 𝐴 → ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐴) = ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
198197adantl 481 . . . . . . . . 9 ((𝜑𝑦 = 𝐴) → ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐴) = ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
199195, 198eleqtrd 2841 . . . . . . . 8 ((𝜑𝑦 = 𝐴) → 𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
200180adantl 481 . . . . . . . . . . . . . . . 16 ((𝑥 = 𝐵𝑥 = 𝐴) → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) = 𝑅)
201 eqtr2 2762 . . . . . . . . . . . . . . . . 17 ((𝑥 = 𝐵𝑥 = 𝐴) → 𝐵 = 𝐴)
202 iftrue 4462 . . . . . . . . . . . . . . . . . 18 (𝐵 = 𝐴 → if(𝐵 = 𝐴, 𝑅, if(𝐵 = 𝐵, 𝐿, (𝐹𝐵))) = 𝑅)
203202eqcomd 2744 . . . . . . . . . . . . . . . . 17 (𝐵 = 𝐴𝑅 = if(𝐵 = 𝐴, 𝑅, if(𝐵 = 𝐵, 𝐿, (𝐹𝐵))))
204201, 203syl 17 . . . . . . . . . . . . . . . 16 ((𝑥 = 𝐵𝑥 = 𝐴) → 𝑅 = if(𝐵 = 𝐴, 𝑅, if(𝐵 = 𝐵, 𝐿, (𝐹𝐵))))
205200, 204eqtrd 2778 . . . . . . . . . . . . . . 15 ((𝑥 = 𝐵𝑥 = 𝐴) → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) = if(𝐵 = 𝐴, 𝑅, if(𝐵 = 𝐵, 𝐿, (𝐹𝐵))))
206 iffalse 4465 . . . . . . . . . . . . . . . . 17 𝑥 = 𝐴 → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) = if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)))
207206adantl 481 . . . . . . . . . . . . . . . 16 ((𝑥 = 𝐵 ∧ ¬ 𝑥 = 𝐴) → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) = if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)))
208 iftrue 4462 . . . . . . . . . . . . . . . . 17 (𝑥 = 𝐵 → if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)) = 𝐿)
209208adantr 480 . . . . . . . . . . . . . . . 16 ((𝑥 = 𝐵 ∧ ¬ 𝑥 = 𝐴) → if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)) = 𝐿)
210 df-ne 2943 . . . . . . . . . . . . . . . . . . . 20 (𝑥𝐴 ↔ ¬ 𝑥 = 𝐴)
211 pm13.18 3024 . . . . . . . . . . . . . . . . . . . 20 ((𝑥 = 𝐵𝑥𝐴) → 𝐵𝐴)
212210, 211sylan2br 594 . . . . . . . . . . . . . . . . . . 19 ((𝑥 = 𝐵 ∧ ¬ 𝑥 = 𝐴) → 𝐵𝐴)
213212neneqd 2947 . . . . . . . . . . . . . . . . . 18 ((𝑥 = 𝐵 ∧ ¬ 𝑥 = 𝐴) → ¬ 𝐵 = 𝐴)
214213iffalsed 4467 . . . . . . . . . . . . . . . . 17 ((𝑥 = 𝐵 ∧ ¬ 𝑥 = 𝐴) → if(𝐵 = 𝐴, 𝑅, if(𝐵 = 𝐵, 𝐿, (𝐹𝐵))) = if(𝐵 = 𝐵, 𝐿, (𝐹𝐵)))
215 eqid 2738 . . . . . . . . . . . . . . . . . 18 𝐵 = 𝐵
216215iftruei 4463 . . . . . . . . . . . . . . . . 17 if(𝐵 = 𝐵, 𝐿, (𝐹𝐵)) = 𝐿
217214, 216eqtr2di 2796 . . . . . . . . . . . . . . . 16 ((𝑥 = 𝐵 ∧ ¬ 𝑥 = 𝐴) → 𝐿 = if(𝐵 = 𝐴, 𝑅, if(𝐵 = 𝐵, 𝐿, (𝐹𝐵))))
218207, 209, 2173eqtrd 2782 . . . . . . . . . . . . . . 15 ((𝑥 = 𝐵 ∧ ¬ 𝑥 = 𝐴) → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) = if(𝐵 = 𝐴, 𝑅, if(𝐵 = 𝐵, 𝐿, (𝐹𝐵))))
219205, 218pm2.61dan 809 . . . . . . . . . . . . . 14 (𝑥 = 𝐵 → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) = if(𝐵 = 𝐴, 𝑅, if(𝐵 = 𝐵, 𝐿, (𝐹𝐵))))
22021leidd 11471 . . . . . . . . . . . . . . 15 (𝜑𝐵𝐵)
22118, 21, 21, 25, 220eliccd 42932 . . . . . . . . . . . . . 14 (𝜑𝐵 ∈ (𝐴[,]𝐵))
222216, 8eqeltrid 2843 . . . . . . . . . . . . . . 15 (𝜑 → if(𝐵 = 𝐵, 𝐿, (𝐹𝐵)) ∈ ℂ)
2234, 222ifcld 4502 . . . . . . . . . . . . . 14 (𝜑 → if(𝐵 = 𝐴, 𝑅, if(𝐵 = 𝐵, 𝐿, (𝐹𝐵))) ∈ ℂ)
22441, 219, 221, 223fvmptd3 6880 . . . . . . . . . . . . 13 (𝜑 → (𝐺𝐵) = if(𝐵 = 𝐴, 𝑅, if(𝐵 = 𝐵, 𝐿, (𝐹𝐵))))
22518, 24gtned 11040 . . . . . . . . . . . . . . 15 (𝜑𝐵𝐴)
226225neneqd 2947 . . . . . . . . . . . . . 14 (𝜑 → ¬ 𝐵 = 𝐴)
227226iffalsed 4467 . . . . . . . . . . . . 13 (𝜑 → if(𝐵 = 𝐴, 𝑅, if(𝐵 = 𝐵, 𝐿, (𝐹𝐵))) = if(𝐵 = 𝐵, 𝐿, (𝐹𝐵)))
228216a1i 11 . . . . . . . . . . . . 13 (𝜑 → if(𝐵 = 𝐵, 𝐿, (𝐹𝐵)) = 𝐿)
229224, 227, 2283eqtrd 2782 . . . . . . . . . . . 12 (𝜑 → (𝐺𝐵) = 𝐿)
230185oveq1d 7270 . . . . . . . . . . . . . 14 (𝜑 → (𝐹 lim 𝐵) = ((𝐺 ↾ (𝐴(,)𝐵)) lim 𝐵))
2317, 230eleqtrd 2841 . . . . . . . . . . . . 13 (𝜑𝐿 ∈ ((𝐺 ↾ (𝐴(,)𝐵)) lim 𝐵))
23218, 21, 24, 42limcicciooub 43068 . . . . . . . . . . . . 13 (𝜑 → ((𝐺 ↾ (𝐴(,)𝐵)) lim 𝐵) = (𝐺 lim 𝐵))
233231, 232eleqtrd 2841 . . . . . . . . . . . 12 (𝜑𝐿 ∈ (𝐺 lim 𝐵))
234229, 233eqeltrd 2839 . . . . . . . . . . 11 (𝜑 → (𝐺𝐵) ∈ (𝐺 lim 𝐵))
235101, 191cnplimc 24956 . . . . . . . . . . . 12 (((𝐴[,]𝐵) ⊆ ℂ ∧ 𝐵 ∈ (𝐴[,]𝐵)) → (𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐵) ↔ (𝐺:(𝐴[,]𝐵)⟶ℂ ∧ (𝐺𝐵) ∈ (𝐺 lim 𝐵))))
236132, 221, 235syl2anc 583 . . . . . . . . . . 11 (𝜑 → (𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐵) ↔ (𝐺:(𝐴[,]𝐵)⟶ℂ ∧ (𝐺𝐵) ∈ (𝐺 lim 𝐵))))
23742, 234, 236mpbir2and 709 . . . . . . . . . 10 (𝜑𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐵))
238237adantr 480 . . . . . . . . 9 ((𝜑𝑦 = 𝐵) → 𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐵))
239 fveq2 6756 . . . . . . . . . . 11 (𝑦 = 𝐵 → ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦) = ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐵))
240239eqcomd 2744 . . . . . . . . . 10 (𝑦 = 𝐵 → ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐵) = ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
241240adantl 481 . . . . . . . . 9 ((𝜑𝑦 = 𝐵) → ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐵) = ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
242238, 241eleqtrd 2841 . . . . . . . 8 ((𝜑𝑦 = 𝐵) → 𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
243199, 242jaodan 954 . . . . . . 7 ((𝜑 ∧ (𝑦 = 𝐴𝑦 = 𝐵)) → 𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
244179, 243sylan2 592 . . . . . 6 ((𝜑𝑦 ∈ {𝐴, 𝐵}) → 𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
245178, 244jaodan 954 . . . . 5 ((𝜑 ∧ (𝑦 ∈ (𝐴(,)𝐵) ∨ 𝑦 ∈ {𝐴, 𝐵})) → 𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
24647, 245syldan 590 . . . 4 ((𝜑𝑦 ∈ (𝐴[,]𝐵)) → 𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
247246ralrimiva 3107 . . 3 (𝜑 → ∀𝑦 ∈ (𝐴[,]𝐵)𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
248101cnfldtopon 23852 . . . . 5 (TopOpen‘ℂfld) ∈ (TopOn‘ℂ)
249 resttopon 22220 . . . . 5 (((TopOpen‘ℂfld) ∈ (TopOn‘ℂ) ∧ (𝐴[,]𝐵) ⊆ ℂ) → ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ∈ (TopOn‘(𝐴[,]𝐵)))
250248, 132, 249sylancr 586 . . . 4 (𝜑 → ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ∈ (TopOn‘(𝐴[,]𝐵)))
251 cncnp 22339 . . . 4 ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ∈ (TopOn‘(𝐴[,]𝐵)) ∧ (TopOpen‘ℂfld) ∈ (TopOn‘ℂ)) → (𝐺 ∈ (((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) Cn (TopOpen‘ℂfld)) ↔ (𝐺:(𝐴[,]𝐵)⟶ℂ ∧ ∀𝑦 ∈ (𝐴[,]𝐵)𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))))
252250, 248, 251sylancl 585 . . 3 (𝜑 → (𝐺 ∈ (((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) Cn (TopOpen‘ℂfld)) ↔ (𝐺:(𝐴[,]𝐵)⟶ℂ ∧ ∀𝑦 ∈ (𝐴[,]𝐵)𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))))
25342, 247, 252mpbir2and 709 . 2 (𝜑𝐺 ∈ (((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) Cn (TopOpen‘ℂfld)))
254101, 191, 107cncfcn 23979 . . 3 (((𝐴[,]𝐵) ⊆ ℂ ∧ ℂ ⊆ ℂ) → ((𝐴[,]𝐵)–cn→ℂ) = (((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) Cn (TopOpen‘ℂfld)))
255132, 100, 254sylancl 585 . 2 (𝜑 → ((𝐴[,]𝐵)–cn→ℂ) = (((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) Cn (TopOpen‘ℂfld)))
256253, 255eleqtrrd 2842 1 (𝜑𝐺 ∈ ((𝐴[,]𝐵)–cn→ℂ))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 205  wa 395  wo 843  w3a 1085   = wceq 1539  wnf 1787  wcel 2108  wne 2942  wral 3063  Vcvv 3422  cdif 3880  cun 3881  cin 3882  wss 3883  ifcif 4456  {cpr 4560   cuni 4836   class class class wbr 5070  cmpt 5153  ran crn 5581  cres 5582  wf 6414  cfv 6418  (class class class)co 7255  cc 10800  cr 10801  *cxr 10939   < clt 10940  cle 10941  (,)cioo 13008  [,]cicc 13011  t crest 17048  TopOpenctopn 17049  topGenctg 17065  fldccnfld 20510  Topctop 21950  TopOnctopon 21967  intcnt 22076   Cn ccn 22283   CnP ccnp 22284  cnccncf 23945   lim climc 24931
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-rep 5205  ax-sep 5218  ax-nul 5225  ax-pow 5283  ax-pr 5347  ax-un 7566  ax-cnex 10858  ax-resscn 10859  ax-1cn 10860  ax-icn 10861  ax-addcl 10862  ax-addrcl 10863  ax-mulcl 10864  ax-mulrcl 10865  ax-mulcom 10866  ax-addass 10867  ax-mulass 10868  ax-distr 10869  ax-i2m1 10870  ax-1ne0 10871  ax-1rid 10872  ax-rnegex 10873  ax-rrecex 10874  ax-cnre 10875  ax-pre-lttri 10876  ax-pre-lttrn 10877  ax-pre-ltadd 10878  ax-pre-mulgt0 10879  ax-pre-sup 10880
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3or 1086  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-nel 3049  df-ral 3068  df-rex 3069  df-reu 3070  df-rmo 3071  df-rab 3072  df-v 3424  df-sbc 3712  df-csb 3829  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-pss 3902  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-tp 4563  df-op 4565  df-uni 4837  df-int 4877  df-iun 4923  df-iin 4924  df-br 5071  df-opab 5133  df-mpt 5154  df-tr 5188  df-id 5480  df-eprel 5486  df-po 5494  df-so 5495  df-fr 5535  df-we 5537  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-pred 6191  df-ord 6254  df-on 6255  df-lim 6256  df-suc 6257  df-iota 6376  df-fun 6420  df-fn 6421  df-f 6422  df-f1 6423  df-fo 6424  df-f1o 6425  df-fv 6426  df-riota 7212  df-ov 7258  df-oprab 7259  df-mpo 7260  df-om 7688  df-1st 7804  df-2nd 7805  df-frecs 8068  df-wrecs 8099  df-recs 8173  df-rdg 8212  df-1o 8267  df-er 8456  df-map 8575  df-pm 8576  df-en 8692  df-dom 8693  df-sdom 8694  df-fin 8695  df-fi 9100  df-sup 9131  df-inf 9132  df-pnf 10942  df-mnf 10943  df-xr 10944  df-ltxr 10945  df-le 10946  df-sub 11137  df-neg 11138  df-div 11563  df-nn 11904  df-2 11966  df-3 11967  df-4 11968  df-5 11969  df-6 11970  df-7 11971  df-8 11972  df-9 11973  df-n0 12164  df-z 12250  df-dec 12367  df-uz 12512  df-q 12618  df-rp 12660  df-xneg 12777  df-xadd 12778  df-xmul 12779  df-ioo 13012  df-ioc 13013  df-ico 13014  df-icc 13015  df-fz 13169  df-seq 13650  df-exp 13711  df-cj 14738  df-re 14739  df-im 14740  df-sqrt 14874  df-abs 14875  df-struct 16776  df-slot 16811  df-ndx 16823  df-base 16841  df-plusg 16901  df-mulr 16902  df-starv 16903  df-tset 16907  df-ple 16908  df-ds 16910  df-unif 16911  df-rest 17050  df-topn 17051  df-topgen 17071  df-psmet 20502  df-xmet 20503  df-met 20504  df-bl 20505  df-mopn 20506  df-cnfld 20511  df-top 21951  df-topon 21968  df-topsp 21990  df-bases 22004  df-cld 22078  df-ntr 22079  df-cls 22080  df-cn 22286  df-cnp 22287  df-xms 23381  df-ms 23382  df-cncf 23947  df-limc 24935
This theorem is referenced by:  cncfiooicc  43325
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