Users' Mathboxes Mathbox for Glauco Siliprandi < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  cncfiooicclem1 Structured version   Visualization version   GIF version

Theorem cncfiooicclem1 43441
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 25048 . . . . . . 7 (𝐹 lim 𝐴) ⊆ ℂ
3 cncfiooicclem1.r . . . . . . 7 (𝜑𝑅 ∈ (𝐹 lim 𝐴))
42, 3sselid 3920 . . . . . 6 (𝜑𝑅 ∈ ℂ)
54ad2antrr 723 . . . . 5 (((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ 𝑥 = 𝐴) → 𝑅 ∈ ℂ)
6 limccl 25048 . . . . . . . 8 (𝐹 lim 𝐵) ⊆ ℂ
7 cncfiooicclem1.l . . . . . . . 8 (𝜑𝐿 ∈ (𝐹 lim 𝐵))
86, 7sselid 3920 . . . . . . 7 (𝜑𝐿 ∈ ℂ)
98ad3antrrr 727 . . . . . 6 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ 𝑥 = 𝐵) → 𝐿 ∈ ℂ)
10 simplll 772 . . . . . . 7 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → 𝜑)
11 orel1 886 . . . . . . . . . . 11 𝑥 = 𝐴 → ((𝑥 = 𝐴𝑥 = 𝐵) → 𝑥 = 𝐵))
1211con3dimp 409 . . . . . . . . . 10 ((¬ 𝑥 = 𝐴 ∧ ¬ 𝑥 = 𝐵) → ¬ (𝑥 = 𝐴𝑥 = 𝐵))
13 vex 3437 . . . . . . . . . . 11 𝑥 ∈ V
1413elpr 4585 . . . . . . . . . 10 (𝑥 ∈ {𝐴, 𝐵} ↔ (𝑥 = 𝐴𝑥 = 𝐵))
1512, 14sylnibr 329 . . . . . . . . 9 ((¬ 𝑥 = 𝐴 ∧ ¬ 𝑥 = 𝐵) → ¬ 𝑥 ∈ {𝐴, 𝐵})
1615adantll 711 . . . . . . . 8 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → ¬ 𝑥 ∈ {𝐴, 𝐵})
17 simpllr 773 . . . . . . . . . 10 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → 𝑥 ∈ (𝐴[,]𝐵))
18 cncfiooicclem1.a . . . . . . . . . . . . 13 (𝜑𝐴 ∈ ℝ)
1918rexrd 11034 . . . . . . . . . . . 12 (𝜑𝐴 ∈ ℝ*)
2010, 19syl 17 . . . . . . . . . . 11 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → 𝐴 ∈ ℝ*)
21 cncfiooicclem1.b . . . . . . . . . . . . 13 (𝜑𝐵 ∈ ℝ)
2221rexrd 11034 . . . . . . . . . . . 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 11132 . . . . . . . . . . . 12 (𝜑𝐴𝐵)
2610, 25syl 17 . . . . . . . . . . 11 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → 𝐴𝐵)
27 prunioo 13222 . . . . . . . . . . 11 ((𝐴 ∈ ℝ*𝐵 ∈ ℝ*𝐴𝐵) → ((𝐴(,)𝐵) ∪ {𝐴, 𝐵}) = (𝐴[,]𝐵))
2820, 23, 26, 27syl3anc 1370 . . . . . . . . . 10 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → ((𝐴(,)𝐵) ∪ {𝐴, 𝐵}) = (𝐴[,]𝐵))
2917, 28eleqtrrd 2843 . . . . . . . . 9 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → 𝑥 ∈ ((𝐴(,)𝐵) ∪ {𝐴, 𝐵}))
30 elun 4084 . . . . . . . . 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 888 . . . . . . . 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 24065 . . . . . . . . 9 (𝐹 ∈ ((𝐴(,)𝐵)–cn→ℂ) → 𝐹:(𝐴(,)𝐵)⟶ℂ)
3634, 35syl 17 . . . . . . . 8 (𝜑𝐹:(𝐴(,)𝐵)⟶ℂ)
3736ffvelrnda 6970 . . . . . . 7 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → (𝐹𝑥) ∈ ℂ)
3810, 33, 37syl2anc 584 . . . . . 6 ((((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) ∧ ¬ 𝑥 = 𝐵) → (𝐹𝑥) ∈ ℂ)
399, 38ifclda 4495 . . . . 5 (((𝜑𝑥 ∈ (𝐴[,]𝐵)) ∧ ¬ 𝑥 = 𝐴) → if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)) ∈ ℂ)
405, 39ifclda 4495 . . . 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 7000 . . 3 (𝜑𝐺:(𝐴[,]𝐵)⟶ℂ)
43 elun 4084 . . . . . . 7 (𝑦 ∈ ((𝐴(,)𝐵) ∪ {𝐴, 𝐵}) ↔ (𝑦 ∈ (𝐴(,)𝐵) ∨ 𝑦 ∈ {𝐴, 𝐵}))
4419, 22, 25, 27syl3anc 1370 . . . . . . . 8 (𝜑 → ((𝐴(,)𝐵) ∪ {𝐴, 𝐵}) = (𝐴[,]𝐵))
4544eleq2d 2825 . . . . . . 7 (𝜑 → (𝑦 ∈ ((𝐴(,)𝐵) ∪ {𝐴, 𝐵}) ↔ 𝑦 ∈ (𝐴[,]𝐵)))
4643, 45bitr3id 285 . . . . . 6 (𝜑 → ((𝑦 ∈ (𝐴(,)𝐵) ∨ 𝑦 ∈ {𝐴, 𝐵}) ↔ 𝑦 ∈ (𝐴[,]𝐵)))
4746biimpar 478 . . . . 5 ((𝜑𝑦 ∈ (𝐴[,]𝐵)) → (𝑦 ∈ (𝐴(,)𝐵) ∨ 𝑦 ∈ {𝐴, 𝐵}))
48 ioossicc 13174 . . . . . . . . . . . . 13 (𝐴(,)𝐵) ⊆ (𝐴[,]𝐵)
49 fssres 6649 . . . . . . . . . . . . 13 ((𝐺:(𝐴[,]𝐵)⟶ℂ ∧ (𝐴(,)𝐵) ⊆ (𝐴[,]𝐵)) → (𝐺 ↾ (𝐴(,)𝐵)):(𝐴(,)𝐵)⟶ℂ)
5042, 48, 49sylancl 586 . . . . . . . . . . . 12 (𝜑 → (𝐺 ↾ (𝐴(,)𝐵)):(𝐴(,)𝐵)⟶ℂ)
5150feqmptd 6846 . . . . . . . . . . 11 (𝜑 → (𝐺 ↾ (𝐴(,)𝐵)) = (𝑦 ∈ (𝐴(,)𝐵) ↦ ((𝐺 ↾ (𝐴(,)𝐵))‘𝑦)))
52 nfmpt1 5183 . . . . . . . . . . . . . . . 16 𝑥(𝑥 ∈ (𝐴[,]𝐵) ↦ if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))))
5341, 52nfcxfr 2906 . . . . . . . . . . . . . . 15 𝑥𝐺
54 nfcv 2908 . . . . . . . . . . . . . . 15 𝑥(𝐴(,)𝐵)
5553, 54nfres 5896 . . . . . . . . . . . . . 14 𝑥(𝐺 ↾ (𝐴(,)𝐵))
56 nfcv 2908 . . . . . . . . . . . . . 14 𝑥𝑦
5755, 56nffv 6793 . . . . . . . . . . . . 13 𝑥((𝐺 ↾ (𝐴(,)𝐵))‘𝑦)
58 nfcv 2908 . . . . . . . . . . . . . 14 𝑦(𝐺 ↾ (𝐴(,)𝐵))
59 nfcv 2908 . . . . . . . . . . . . . 14 𝑦𝑥
6058, 59nffv 6793 . . . . . . . . . . . . 13 𝑦((𝐺 ↾ (𝐴(,)𝐵))‘𝑥)
61 fveq2 6783 . . . . . . . . . . . . 13 (𝑦 = 𝑥 → ((𝐺 ↾ (𝐴(,)𝐵))‘𝑦) = ((𝐺 ↾ (𝐴(,)𝐵))‘𝑥))
6257, 60, 61cbvmpt 5186 . . . . . . . . . . . 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 6802 . . . . . . . . . . . . . 14 (𝑥 ∈ (𝐴(,)𝐵) → ((𝐺 ↾ (𝐴(,)𝐵))‘𝑥) = (𝐺𝑥))
6564adantl 482 . . . . . . . . . . . . 13 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → ((𝐺 ↾ (𝐴(,)𝐵))‘𝑥) = (𝐺𝑥))
66 simpr 485 . . . . . . . . . . . . . . 15 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → 𝑥 ∈ (𝐴(,)𝐵))
6748, 66sselid 3920 . . . . . . . . . . . . . 14 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → 𝑥 ∈ (𝐴[,]𝐵))
684adantr 481 . . . . . . . . . . . . . . 15 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → 𝑅 ∈ ℂ)
698ad2antrr 723 . . . . . . . . . . . . . . . 16 (((𝜑𝑥 ∈ (𝐴(,)𝐵)) ∧ 𝑥 = 𝐵) → 𝐿 ∈ ℂ)
7037adantr 481 . . . . . . . . . . . . . . . 16 (((𝜑𝑥 ∈ (𝐴(,)𝐵)) ∧ ¬ 𝑥 = 𝐵) → (𝐹𝑥) ∈ ℂ)
7169, 70ifclda 4495 . . . . . . . . . . . . . . 15 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)) ∈ ℂ)
7268, 71ifcld 4506 . . . . . . . . . . . . . 14 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) ∈ ℂ)
7341fvmpt2 6895 . . . . . . . . . . . . . 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 584 . . . . . . . . . . . . 13 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → (𝐺𝑥) = if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))))
75 elioo4g 13148 . . . . . . . . . . . . . . . . . . . . 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 495 . . . . . . . . . . . . . . . . . . 19 (𝑥 ∈ (𝐴(,)𝐵) → (𝐴 ∈ ℝ*𝐵 ∈ ℝ*𝑥 ∈ ℝ))
7877simp1d 1141 . . . . . . . . . . . . . . . . . 18 (𝑥 ∈ (𝐴(,)𝐵) → 𝐴 ∈ ℝ*)
79 elioore 13118 . . . . . . . . . . . . . . . . . . 19 (𝑥 ∈ (𝐴(,)𝐵) → 𝑥 ∈ ℝ)
8079rexrd 11034 . . . . . . . . . . . . . . . . . 18 (𝑥 ∈ (𝐴(,)𝐵) → 𝑥 ∈ ℝ*)
81 eliooord 13147 . . . . . . . . . . . . . . . . . . 19 (𝑥 ∈ (𝐴(,)𝐵) → (𝐴 < 𝑥𝑥 < 𝐵))
8281simpld 495 . . . . . . . . . . . . . . . . . 18 (𝑥 ∈ (𝐴(,)𝐵) → 𝐴 < 𝑥)
83 xrltne 12906 . . . . . . . . . . . . . . . . . 18 ((𝐴 ∈ ℝ*𝑥 ∈ ℝ*𝐴 < 𝑥) → 𝑥𝐴)
8478, 80, 82, 83syl3anc 1370 . . . . . . . . . . . . . . . . 17 (𝑥 ∈ (𝐴(,)𝐵) → 𝑥𝐴)
8584adantl 482 . . . . . . . . . . . . . . . 16 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → 𝑥𝐴)
8685neneqd 2949 . . . . . . . . . . . . . . 15 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → ¬ 𝑥 = 𝐴)
8786iffalsed 4471 . . . . . . . . . . . . . 14 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) = if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)))
8881simprd 496 . . . . . . . . . . . . . . . . . 18 (𝑥 ∈ (𝐴(,)𝐵) → 𝑥 < 𝐵)
8979, 88ltned 11120 . . . . . . . . . . . . . . . . 17 (𝑥 ∈ (𝐴(,)𝐵) → 𝑥𝐵)
9089neneqd 2949 . . . . . . . . . . . . . . . 16 (𝑥 ∈ (𝐴(,)𝐵) → ¬ 𝑥 = 𝐵)
9190iffalsed 4471 . . . . . . . . . . . . . . 15 (𝑥 ∈ (𝐴(,)𝐵) → if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)) = (𝐹𝑥))
9291adantl 482 . . . . . . . . . . . . . 14 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)) = (𝐹𝑥))
9387, 92eqtrd 2779 . . . . . . . . . . . . 13 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) = (𝐹𝑥))
9465, 74, 933eqtrd 2783 . . . . . . . . . . . 12 ((𝜑𝑥 ∈ (𝐴(,)𝐵)) → ((𝐺 ↾ (𝐴(,)𝐵))‘𝑥) = (𝐹𝑥))
951, 94mpteq2da 5173 . . . . . . . . . . 11 (𝜑 → (𝑥 ∈ (𝐴(,)𝐵) ↦ ((𝐺 ↾ (𝐴(,)𝐵))‘𝑥)) = (𝑥 ∈ (𝐴(,)𝐵) ↦ (𝐹𝑥)))
9651, 63, 953eqtrd 2783 . . . . . . . . . 10 (𝜑 → (𝐺 ↾ (𝐴(,)𝐵)) = (𝑥 ∈ (𝐴(,)𝐵) ↦ (𝐹𝑥)))
9736feqmptd 6846 . . . . . . . . . . 11 (𝜑𝐹 = (𝑥 ∈ (𝐴(,)𝐵) ↦ (𝐹𝑥)))
98 ioosscn 13150 . . . . . . . . . . . . 13 (𝐴(,)𝐵) ⊆ ℂ
9998a1i 11 . . . . . . . . . . . 12 (𝜑 → (𝐴(,)𝐵) ⊆ ℂ)
100 ssid 3944 . . . . . . . . . . . 12 ℂ ⊆ ℂ
101 eqid 2739 . . . . . . . . . . . . 13 (TopOpen‘ℂfld) = (TopOpen‘ℂfld)
102 eqid 2739 . . . . . . . . . . . . 13 ((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) = ((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵))
103101cnfldtop 23956 . . . . . . . . . . . . . . 15 (TopOpen‘ℂfld) ∈ Top
104 unicntop 23958 . . . . . . . . . . . . . . . 16 ℂ = (TopOpen‘ℂfld)
105104restid 17153 . . . . . . . . . . . . . . 15 ((TopOpen‘ℂfld) ∈ Top → ((TopOpen‘ℂfld) ↾t ℂ) = (TopOpen‘ℂfld))
106103, 105ax-mp 5 . . . . . . . . . . . . . 14 ((TopOpen‘ℂfld) ↾t ℂ) = (TopOpen‘ℂfld)
107106eqcomi 2748 . . . . . . . . . . . . 13 (TopOpen‘ℂfld) = ((TopOpen‘ℂfld) ↾t ℂ)
108101, 102, 107cncfcn 24082 . . . . . . . . . . . 12 (((𝐴(,)𝐵) ⊆ ℂ ∧ ℂ ⊆ ℂ) → ((𝐴(,)𝐵)–cn→ℂ) = (((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) Cn (TopOpen‘ℂfld)))
10999, 100, 108sylancl 586 . . . . . . . . . . 11 (𝜑 → ((𝐴(,)𝐵)–cn→ℂ) = (((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) Cn (TopOpen‘ℂfld)))
11034, 97, 1093eltr3d 2854 . . . . . . . . . 10 (𝜑 → (𝑥 ∈ (𝐴(,)𝐵) ↦ (𝐹𝑥)) ∈ (((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) Cn (TopOpen‘ℂfld)))
11196, 110eqeltrd 2840 . . . . . . . . 9 (𝜑 → (𝐺 ↾ (𝐴(,)𝐵)) ∈ (((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) Cn (TopOpen‘ℂfld)))
112104restuni 22322 . . . . . . . . . . 11 (((TopOpen‘ℂfld) ∈ Top ∧ (𝐴(,)𝐵) ⊆ ℂ) → (𝐴(,)𝐵) = ((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)))
113103, 98, 112mp2an 689 . . . . . . . . . 10 (𝐴(,)𝐵) = ((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵))
114113cncnpi 22438 . . . . . . . . 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 580 . . . . . . . 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 7317 . . . . . . . . . . . . 13 (𝐴[,]𝐵) ∈ V
119118a1i 11 . . . . . . . . . . . 12 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (𝐴[,]𝐵) ∈ V)
120 restabs 22325 . . . . . . . . . . . 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 1370 . . . . . . . . . . 11 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ↾t (𝐴(,)𝐵)) = ((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)))
122121eqcomd 2745 . . . . . . . . . 10 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → ((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) = (((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ↾t (𝐴(,)𝐵)))
123122oveq1d 7299 . . . . . . . . 9 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (((TopOpen‘ℂfld) ↾t (𝐴(,)𝐵)) CnP (TopOpen‘ℂfld)) = ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ↾t (𝐴(,)𝐵)) CnP (TopOpen‘ℂfld)))
124123fveq1d 6785 . . . . . . . 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 2842 . . . . . . 7 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (𝐺 ↾ (𝐴(,)𝐵)) ∈ (((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ↾t (𝐴(,)𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
126 resttop 22320 . . . . . . . . . 10 (((TopOpen‘ℂfld) ∈ Top ∧ (𝐴[,]𝐵) ∈ V) → ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ∈ Top)
127103, 118, 126mp2an 689 . . . . . . . . 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 13175 . . . . . . . . . . . 12 (𝜑 → (𝐴[,]𝐵) ⊆ ℝ)
131 ax-resscn 10937 . . . . . . . . . . . 12 ℝ ⊆ ℂ
132130, 131sstrdi 3934 . . . . . . . . . . 11 (𝜑 → (𝐴[,]𝐵) ⊆ ℂ)
133104restuni 22322 . . . . . . . . . . 11 (((TopOpen‘ℂfld) ∈ Top ∧ (𝐴[,]𝐵) ⊆ ℂ) → (𝐴[,]𝐵) = ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))
134103, 132, 133sylancr 587 . . . . . . . . . 10 (𝜑 → (𝐴[,]𝐵) = ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))
135129, 134sseqtrd 3962 . . . . . . . . 9 (𝜑 → (𝐴(,)𝐵) ⊆ ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))
136135adantr 481 . . . . . . . 8 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (𝐴(,)𝐵) ⊆ ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))
137 retop 23934 . . . . . . . . . . . . . 14 (topGen‘ran (,)) ∈ Top
138137a1i 11 . . . . . . . . . . . . 13 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (topGen‘ran (,)) ∈ Top)
139 ioossre 13149 . . . . . . . . . . . . . . 15 (𝐴(,)𝐵) ⊆ ℝ
140 difss 4067 . . . . . . . . . . . . . . 15 (ℝ ∖ (𝐴[,]𝐵)) ⊆ ℝ
141139, 140unssi 4120 . . . . . . . . . . . . . 14 ((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵))) ⊆ ℝ
142141a1i 11 . . . . . . . . . . . . 13 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → ((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵))) ⊆ ℝ)
143 ssun1 4107 . . . . . . . . . . . . . 14 (𝐴(,)𝐵) ⊆ ((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵)))
144143a1i 11 . . . . . . . . . . . . 13 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (𝐴(,)𝐵) ⊆ ((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵))))
145 uniretop 23935 . . . . . . . . . . . . . 14 ℝ = (topGen‘ran (,))
146145ntrss 22215 . . . . . . . . . . . . 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 1370 . . . . . . . . . . . 12 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → ((int‘(topGen‘ran (,)))‘(𝐴(,)𝐵)) ⊆ ((int‘(topGen‘ran (,)))‘((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵)))))
148 simpr 485 . . . . . . . . . . . . 13 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → 𝑦 ∈ (𝐴(,)𝐵))
149 ioontr 43056 . . . . . . . . . . . . 13 ((int‘(topGen‘ran (,)))‘(𝐴(,)𝐵)) = (𝐴(,)𝐵)
150148, 149eleqtrrdi 2851 . . . . . . . . . . . 12 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → 𝑦 ∈ ((int‘(topGen‘ran (,)))‘(𝐴(,)𝐵)))
151147, 150sseldd 3923 . . . . . . . . . . 11 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → 𝑦 ∈ ((int‘(topGen‘ran (,)))‘((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵)))))
15248, 148sselid 3920 . . . . . . . . . . 11 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → 𝑦 ∈ (𝐴[,]𝐵))
153151, 152elind 4129 . . . . . . . . . 10 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → 𝑦 ∈ (((int‘(topGen‘ran (,)))‘((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵)))) ∩ (𝐴[,]𝐵)))
154130adantr 481 . . . . . . . . . . 11 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → (𝐴[,]𝐵) ⊆ ℝ)
155 eqid 2739 . . . . . . . . . . . 12 ((topGen‘ran (,)) ↾t (𝐴[,]𝐵)) = ((topGen‘ran (,)) ↾t (𝐴[,]𝐵))
156145, 155restntr 22342 . . . . . . . . . . 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 1370 . . . . . . . . . 10 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → ((int‘((topGen‘ran (,)) ↾t (𝐴[,]𝐵)))‘(𝐴(,)𝐵)) = (((int‘(topGen‘ran (,)))‘((𝐴(,)𝐵) ∪ (ℝ ∖ (𝐴[,]𝐵)))) ∩ (𝐴[,]𝐵)))
158153, 157eleqtrrd 2843 . . . . . . . . 9 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → 𝑦 ∈ ((int‘((topGen‘ran (,)) ↾t (𝐴[,]𝐵)))‘(𝐴(,)𝐵)))
159101tgioo2 23975 . . . . . . . . . . . . . . 15 (topGen‘ran (,)) = ((TopOpen‘ℂfld) ↾t ℝ)
160159a1i 11 . . . . . . . . . . . . . 14 (𝜑 → (topGen‘ran (,)) = ((TopOpen‘ℂfld) ↾t ℝ))
161160oveq1d 7299 . . . . . . . . . . . . 13 (𝜑 → ((topGen‘ran (,)) ↾t (𝐴[,]𝐵)) = (((TopOpen‘ℂfld) ↾t ℝ) ↾t (𝐴[,]𝐵)))
162103a1i 11 . . . . . . . . . . . . . 14 (𝜑 → (TopOpen‘ℂfld) ∈ Top)
163 reex 10971 . . . . . . . . . . . . . . 15 ℝ ∈ V
164163a1i 11 . . . . . . . . . . . . . 14 (𝜑 → ℝ ∈ V)
165 restabs 22325 . . . . . . . . . . . . . 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 1370 . . . . . . . . . . . . 13 (𝜑 → (((TopOpen‘ℂfld) ↾t ℝ) ↾t (𝐴[,]𝐵)) = ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))
167161, 166eqtrd 2779 . . . . . . . . . . . 12 (𝜑 → ((topGen‘ran (,)) ↾t (𝐴[,]𝐵)) = ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))
168167fveq2d 6787 . . . . . . . . . . 11 (𝜑 → (int‘((topGen‘ran (,)) ↾t (𝐴[,]𝐵))) = (int‘((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵))))
169168fveq1d 6785 . . . . . . . . . 10 (𝜑 → ((int‘((topGen‘ran (,)) ↾t (𝐴[,]𝐵)))‘(𝐴(,)𝐵)) = ((int‘((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))‘(𝐴(,)𝐵)))
170169adantr 481 . . . . . . . . 9 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → ((int‘((topGen‘ran (,)) ↾t (𝐴[,]𝐵)))‘(𝐴(,)𝐵)) = ((int‘((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))‘(𝐴(,)𝐵)))
171158, 170eleqtrd 2842 . . . . . . . 8 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → 𝑦 ∈ ((int‘((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)))‘(𝐴(,)𝐵)))
172134feq2d 6595 . . . . . . . . . 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 481 . . . . . . . 8 ((𝜑𝑦 ∈ (𝐴(,)𝐵)) → 𝐺: ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵))⟶ℂ)
175 eqid 2739 . . . . . . . . 9 ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) = ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵))
176175, 104cnprest 22449 . . . . . . . 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 836 . . . . . . 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 4584 . . . . . . 7 (𝑦 ∈ {𝐴, 𝐵} → (𝑦 = 𝐴𝑦 = 𝐵))
180 iftrue 4466 . . . . . . . . . . . . 13 (𝑥 = 𝐴 → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) = 𝑅)
181 lbicc2 13205 . . . . . . . . . . . . . 14 ((𝐴 ∈ ℝ*𝐵 ∈ ℝ*𝐴𝐵) → 𝐴 ∈ (𝐴[,]𝐵))
18219, 22, 25, 181syl3anc 1370 . . . . . . . . . . . . 13 (𝜑𝐴 ∈ (𝐴[,]𝐵))
18341, 180, 182, 3fvmptd3 6907 . . . . . . . . . . . 12 (𝜑 → (𝐺𝐴) = 𝑅)
18497eqcomd 2745 . . . . . . . . . . . . . . . 16 (𝜑 → (𝑥 ∈ (𝐴(,)𝐵) ↦ (𝐹𝑥)) = 𝐹)
18596, 184eqtr2d 2780 . . . . . . . . . . . . . . 15 (𝜑𝐹 = (𝐺 ↾ (𝐴(,)𝐵)))
186185oveq1d 7299 . . . . . . . . . . . . . 14 (𝜑 → (𝐹 lim 𝐴) = ((𝐺 ↾ (𝐴(,)𝐵)) lim 𝐴))
1873, 186eleqtrd 2842 . . . . . . . . . . . . 13 (𝜑𝑅 ∈ ((𝐺 ↾ (𝐴(,)𝐵)) lim 𝐴))
18818, 21, 24, 42limciccioolb 43169 . . . . . . . . . . . . 13 (𝜑 → ((𝐺 ↾ (𝐴(,)𝐵)) lim 𝐴) = (𝐺 lim 𝐴))
189187, 188eleqtrd 2842 . . . . . . . . . . . 12 (𝜑𝑅 ∈ (𝐺 lim 𝐴))
190183, 189eqeltrd 2840 . . . . . . . . . . 11 (𝜑 → (𝐺𝐴) ∈ (𝐺 lim 𝐴))
191 eqid 2739 . . . . . . . . . . . . 13 ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) = ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵))
192101, 191cnplimc 25060 . . . . . . . . . . . 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 584 . . . . . . . . . . 11 (𝜑 → (𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐴) ↔ (𝐺:(𝐴[,]𝐵)⟶ℂ ∧ (𝐺𝐴) ∈ (𝐺 lim 𝐴))))
19442, 190, 193mpbir2and 710 . . . . . . . . . 10 (𝜑𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐴))
195194adantr 481 . . . . . . . . 9 ((𝜑𝑦 = 𝐴) → 𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐴))
196 fveq2 6783 . . . . . . . . . . 11 (𝑦 = 𝐴 → ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦) = ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐴))
197196eqcomd 2745 . . . . . . . . . 10 (𝑦 = 𝐴 → ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐴) = ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
198197adantl 482 . . . . . . . . 9 ((𝜑𝑦 = 𝐴) → ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐴) = ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
199195, 198eleqtrd 2842 . . . . . . . 8 ((𝜑𝑦 = 𝐴) → 𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
200180adantl 482 . . . . . . . . . . . . . . . 16 ((𝑥 = 𝐵𝑥 = 𝐴) → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) = 𝑅)
201 eqtr2 2763 . . . . . . . . . . . . . . . . 17 ((𝑥 = 𝐵𝑥 = 𝐴) → 𝐵 = 𝐴)
202 iftrue 4466 . . . . . . . . . . . . . . . . . 18 (𝐵 = 𝐴 → if(𝐵 = 𝐴, 𝑅, if(𝐵 = 𝐵, 𝐿, (𝐹𝐵))) = 𝑅)
203202eqcomd 2745 . . . . . . . . . . . . . . . . 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 2779 . . . . . . . . . . . . . . 15 ((𝑥 = 𝐵𝑥 = 𝐴) → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) = if(𝐵 = 𝐴, 𝑅, if(𝐵 = 𝐵, 𝐿, (𝐹𝐵))))
206 iffalse 4469 . . . . . . . . . . . . . . . . 17 𝑥 = 𝐴 → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) = if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)))
207206adantl 482 . . . . . . . . . . . . . . . 16 ((𝑥 = 𝐵 ∧ ¬ 𝑥 = 𝐴) → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) = if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)))
208 iftrue 4466 . . . . . . . . . . . . . . . . 17 (𝑥 = 𝐵 → if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)) = 𝐿)
209208adantr 481 . . . . . . . . . . . . . . . 16 ((𝑥 = 𝐵 ∧ ¬ 𝑥 = 𝐴) → if(𝑥 = 𝐵, 𝐿, (𝐹𝑥)) = 𝐿)
210 df-ne 2945 . . . . . . . . . . . . . . . . . . . 20 (𝑥𝐴 ↔ ¬ 𝑥 = 𝐴)
211 pm13.18 3026 . . . . . . . . . . . . . . . . . . . 20 ((𝑥 = 𝐵𝑥𝐴) → 𝐵𝐴)
212210, 211sylan2br 595 . . . . . . . . . . . . . . . . . . 19 ((𝑥 = 𝐵 ∧ ¬ 𝑥 = 𝐴) → 𝐵𝐴)
213212neneqd 2949 . . . . . . . . . . . . . . . . . 18 ((𝑥 = 𝐵 ∧ ¬ 𝑥 = 𝐴) → ¬ 𝐵 = 𝐴)
214213iffalsed 4471 . . . . . . . . . . . . . . . . 17 ((𝑥 = 𝐵 ∧ ¬ 𝑥 = 𝐴) → if(𝐵 = 𝐴, 𝑅, if(𝐵 = 𝐵, 𝐿, (𝐹𝐵))) = if(𝐵 = 𝐵, 𝐿, (𝐹𝐵)))
215 eqid 2739 . . . . . . . . . . . . . . . . . 18 𝐵 = 𝐵
216215iftruei 4467 . . . . . . . . . . . . . . . . 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 2783 . . . . . . . . . . . . . . 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 810 . . . . . . . . . . . . . 14 (𝑥 = 𝐵 → if(𝑥 = 𝐴, 𝑅, if(𝑥 = 𝐵, 𝐿, (𝐹𝑥))) = if(𝐵 = 𝐴, 𝑅, if(𝐵 = 𝐵, 𝐿, (𝐹𝐵))))
22021leidd 11550 . . . . . . . . . . . . . . 15 (𝜑𝐵𝐵)
22118, 21, 21, 25, 220eliccd 43049 . . . . . . . . . . . . . 14 (𝜑𝐵 ∈ (𝐴[,]𝐵))
222216, 8eqeltrid 2844 . . . . . . . . . . . . . . 15 (𝜑 → if(𝐵 = 𝐵, 𝐿, (𝐹𝐵)) ∈ ℂ)
2234, 222ifcld 4506 . . . . . . . . . . . . . 14 (𝜑 → if(𝐵 = 𝐴, 𝑅, if(𝐵 = 𝐵, 𝐿, (𝐹𝐵))) ∈ ℂ)
22441, 219, 221, 223fvmptd3 6907 . . . . . . . . . . . . 13 (𝜑 → (𝐺𝐵) = if(𝐵 = 𝐴, 𝑅, if(𝐵 = 𝐵, 𝐿, (𝐹𝐵))))
22518, 24gtned 11119 . . . . . . . . . . . . . . 15 (𝜑𝐵𝐴)
226225neneqd 2949 . . . . . . . . . . . . . 14 (𝜑 → ¬ 𝐵 = 𝐴)
227226iffalsed 4471 . . . . . . . . . . . . 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 2783 . . . . . . . . . . . 12 (𝜑 → (𝐺𝐵) = 𝐿)
230185oveq1d 7299 . . . . . . . . . . . . . 14 (𝜑 → (𝐹 lim 𝐵) = ((𝐺 ↾ (𝐴(,)𝐵)) lim 𝐵))
2317, 230eleqtrd 2842 . . . . . . . . . . . . 13 (𝜑𝐿 ∈ ((𝐺 ↾ (𝐴(,)𝐵)) lim 𝐵))
23218, 21, 24, 42limcicciooub 43185 . . . . . . . . . . . . 13 (𝜑 → ((𝐺 ↾ (𝐴(,)𝐵)) lim 𝐵) = (𝐺 lim 𝐵))
233231, 232eleqtrd 2842 . . . . . . . . . . . 12 (𝜑𝐿 ∈ (𝐺 lim 𝐵))
234229, 233eqeltrd 2840 . . . . . . . . . . 11 (𝜑 → (𝐺𝐵) ∈ (𝐺 lim 𝐵))
235101, 191cnplimc 25060 . . . . . . . . . . . 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 584 . . . . . . . . . . 11 (𝜑 → (𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐵) ↔ (𝐺:(𝐴[,]𝐵)⟶ℂ ∧ (𝐺𝐵) ∈ (𝐺 lim 𝐵))))
23742, 234, 236mpbir2and 710 . . . . . . . . . 10 (𝜑𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐵))
238237adantr 481 . . . . . . . . 9 ((𝜑𝑦 = 𝐵) → 𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐵))
239 fveq2 6783 . . . . . . . . . . 11 (𝑦 = 𝐵 → ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦) = ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐵))
240239eqcomd 2745 . . . . . . . . . 10 (𝑦 = 𝐵 → ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐵) = ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
241240adantl 482 . . . . . . . . 9 ((𝜑𝑦 = 𝐵) → ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝐵) = ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
242238, 241eleqtrd 2842 . . . . . . . 8 ((𝜑𝑦 = 𝐵) → 𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
243199, 242jaodan 955 . . . . . . 7 ((𝜑 ∧ (𝑦 = 𝐴𝑦 = 𝐵)) → 𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
244179, 243sylan2 593 . . . . . 6 ((𝜑𝑦 ∈ {𝐴, 𝐵}) → 𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
245178, 244jaodan 955 . . . . 5 ((𝜑 ∧ (𝑦 ∈ (𝐴(,)𝐵) ∨ 𝑦 ∈ {𝐴, 𝐵})) → 𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
24647, 245syldan 591 . . . 4 ((𝜑𝑦 ∈ (𝐴[,]𝐵)) → 𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
247246ralrimiva 3104 . . 3 (𝜑 → ∀𝑦 ∈ (𝐴[,]𝐵)𝐺 ∈ ((((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) CnP (TopOpen‘ℂfld))‘𝑦))
248101cnfldtopon 23955 . . . . 5 (TopOpen‘ℂfld) ∈ (TopOn‘ℂ)
249 resttopon 22321 . . . . 5 (((TopOpen‘ℂfld) ∈ (TopOn‘ℂ) ∧ (𝐴[,]𝐵) ⊆ ℂ) → ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ∈ (TopOn‘(𝐴[,]𝐵)))
250248, 132, 249sylancr 587 . . . 4 (𝜑 → ((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) ∈ (TopOn‘(𝐴[,]𝐵)))
251 cncnp 22440 . . . 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 586 . . 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 710 . 2 (𝜑𝐺 ∈ (((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) Cn (TopOpen‘ℂfld)))
254101, 191, 107cncfcn 24082 . . 3 (((𝐴[,]𝐵) ⊆ ℂ ∧ ℂ ⊆ ℂ) → ((𝐴[,]𝐵)–cn→ℂ) = (((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) Cn (TopOpen‘ℂfld)))
255132, 100, 254sylancl 586 . 2 (𝜑 → ((𝐴[,]𝐵)–cn→ℂ) = (((TopOpen‘ℂfld) ↾t (𝐴[,]𝐵)) Cn (TopOpen‘ℂfld)))
256253, 255eleqtrrd 2843 1 (𝜑𝐺 ∈ ((𝐴[,]𝐵)–cn→ℂ))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 205  wa 396  wo 844  w3a 1086   = wceq 1539  wnf 1786  wcel 2107  wne 2944  wral 3065  Vcvv 3433  cdif 3885  cun 3886  cin 3887  wss 3888  ifcif 4460  {cpr 4564   cuni 4840   class class class wbr 5075  cmpt 5158  ran crn 5591  cres 5592  wf 6433  cfv 6437  (class class class)co 7284  cc 10878  cr 10879  *cxr 11017   < clt 11018  cle 11019  (,)cioo 13088  [,]cicc 13091  t crest 17140  TopOpenctopn 17141  topGenctg 17157  fldccnfld 20606  Topctop 22051  TopOnctopon 22068  intcnt 22177   Cn ccn 22384   CnP ccnp 22385  cnccncf 24048   lim climc 25035
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1798  ax-4 1812  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2109  ax-9 2117  ax-10 2138  ax-11 2155  ax-12 2172  ax-ext 2710  ax-rep 5210  ax-sep 5224  ax-nul 5231  ax-pow 5289  ax-pr 5353  ax-un 7597  ax-cnex 10936  ax-resscn 10937  ax-1cn 10938  ax-icn 10939  ax-addcl 10940  ax-addrcl 10941  ax-mulcl 10942  ax-mulrcl 10943  ax-mulcom 10944  ax-addass 10945  ax-mulass 10946  ax-distr 10947  ax-i2m1 10948  ax-1ne0 10949  ax-1rid 10950  ax-rnegex 10951  ax-rrecex 10952  ax-cnre 10953  ax-pre-lttri 10954  ax-pre-lttrn 10955  ax-pre-ltadd 10956  ax-pre-mulgt0 10957  ax-pre-sup 10958
This theorem depends on definitions:  df-bi 206  df-an 397  df-or 845  df-3or 1087  df-3an 1088  df-tru 1542  df-fal 1552  df-ex 1783  df-nf 1787  df-sb 2069  df-mo 2541  df-eu 2570  df-clab 2717  df-cleq 2731  df-clel 2817  df-nfc 2890  df-ne 2945  df-nel 3051  df-ral 3070  df-rex 3071  df-rmo 3072  df-reu 3073  df-rab 3074  df-v 3435  df-sbc 3718  df-csb 3834  df-dif 3891  df-un 3893  df-in 3895  df-ss 3905  df-pss 3907  df-nul 4258  df-if 4461  df-pw 4536  df-sn 4563  df-pr 4565  df-tp 4567  df-op 4569  df-uni 4841  df-int 4881  df-iun 4927  df-iin 4928  df-br 5076  df-opab 5138  df-mpt 5159  df-tr 5193  df-id 5490  df-eprel 5496  df-po 5504  df-so 5505  df-fr 5545  df-we 5547  df-xp 5596  df-rel 5597  df-cnv 5598  df-co 5599  df-dm 5600  df-rn 5601  df-res 5602  df-ima 5603  df-pred 6206  df-ord 6273  df-on 6274  df-lim 6275  df-suc 6276  df-iota 6395  df-fun 6439  df-fn 6440  df-f 6441  df-f1 6442  df-fo 6443  df-f1o 6444  df-fv 6445  df-riota 7241  df-ov 7287  df-oprab 7288  df-mpo 7289  df-om 7722  df-1st 7840  df-2nd 7841  df-frecs 8106  df-wrecs 8137  df-recs 8211  df-rdg 8250  df-1o 8306  df-er 8507  df-map 8626  df-pm 8627  df-en 8743  df-dom 8744  df-sdom 8745  df-fin 8746  df-fi 9179  df-sup 9210  df-inf 9211  df-pnf 11020  df-mnf 11021  df-xr 11022  df-ltxr 11023  df-le 11024  df-sub 11216  df-neg 11217  df-div 11642  df-nn 11983  df-2 12045  df-3 12046  df-4 12047  df-5 12048  df-6 12049  df-7 12050  df-8 12051  df-9 12052  df-n0 12243  df-z 12329  df-dec 12447  df-uz 12592  df-q 12698  df-rp 12740  df-xneg 12857  df-xadd 12858  df-xmul 12859  df-ioo 13092  df-ioc 13093  df-ico 13094  df-icc 13095  df-fz 13249  df-seq 13731  df-exp 13792  df-cj 14819  df-re 14820  df-im 14821  df-sqrt 14955  df-abs 14956  df-struct 16857  df-slot 16892  df-ndx 16904  df-base 16922  df-plusg 16984  df-mulr 16985  df-starv 16986  df-tset 16990  df-ple 16991  df-ds 16993  df-unif 16994  df-rest 17142  df-topn 17143  df-topgen 17163  df-psmet 20598  df-xmet 20599  df-met 20600  df-bl 20601  df-mopn 20602  df-cnfld 20607  df-top 22052  df-topon 22069  df-topsp 22091  df-bases 22105  df-cld 22179  df-ntr 22180  df-cls 22181  df-cn 22387  df-cnp 22388  df-xms 23482  df-ms 23483  df-cncf 24050  df-limc 25039
This theorem is referenced by:  cncfiooicc  43442
  Copyright terms: Public domain W3C validator