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Theorem mbflimsup 23433
Description: The limit supremum of a sequence of measurable real-valued functions is measurable. (Contributed by Mario Carneiro, 7-Sep-2014.) (Revised by AV, 12-Sep-2020.)
Hypotheses
Ref Expression
mbflimsup.1 𝑍 = (ℤ𝑀)
mbflimsup.2 𝐺 = (𝑥𝐴 ↦ (lim sup‘(𝑛𝑍𝐵)))
mbflimsup.h 𝐻 = (𝑚 ∈ ℝ ↦ sup((((𝑛𝑍𝐵) “ (𝑚[,)+∞)) ∩ ℝ*), ℝ*, < ))
mbflimsup.3 (𝜑𝑀 ∈ ℤ)
mbflimsup.4 ((𝜑𝑥𝐴) → (lim sup‘(𝑛𝑍𝐵)) ∈ ℝ)
mbflimsup.5 ((𝜑𝑛𝑍) → (𝑥𝐴𝐵) ∈ MblFn)
mbflimsup.6 ((𝜑 ∧ (𝑛𝑍𝑥𝐴)) → 𝐵 ∈ ℝ)
Assertion
Ref Expression
mbflimsup (𝜑𝐺 ∈ MblFn)
Distinct variable groups:   𝑥,𝑛,𝐴   𝐵,𝑚   𝜑,𝑛,𝑥   𝑚,𝑀   𝑚,𝑛,𝑥,𝑍
Allowed substitution hints:   𝜑(𝑚)   𝐴(𝑚)   𝐵(𝑥,𝑛)   𝐺(𝑥,𝑚,𝑛)   𝐻(𝑥,𝑚,𝑛)   𝑀(𝑥,𝑛)

Proof of Theorem mbflimsup
Dummy variables 𝑖 𝑘 𝑦 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 mbflimsup.2 . . 3 𝐺 = (𝑥𝐴 ↦ (lim sup‘(𝑛𝑍𝐵)))
2 mbflimsup.h . . . . . 6 𝐻 = (𝑚 ∈ ℝ ↦ sup((((𝑛𝑍𝐵) “ (𝑚[,)+∞)) ∩ ℝ*), ℝ*, < ))
3 mbflimsup.1 . . . . . . . . 9 𝑍 = (ℤ𝑀)
4 fvex 6201 . . . . . . . . 9 (ℤ𝑀) ∈ V
53, 4eqeltri 2697 . . . . . . . 8 𝑍 ∈ V
65mptex 6486 . . . . . . 7 (𝑛𝑍𝐵) ∈ V
76a1i 11 . . . . . 6 ((𝜑𝑥𝐴) → (𝑛𝑍𝐵) ∈ V)
8 uzssz 11707 . . . . . . . . 9 (ℤ𝑀) ⊆ ℤ
93, 8eqsstri 3635 . . . . . . . 8 𝑍 ⊆ ℤ
10 zssre 11384 . . . . . . . 8 ℤ ⊆ ℝ
119, 10sstri 3612 . . . . . . 7 𝑍 ⊆ ℝ
1211a1i 11 . . . . . 6 ((𝜑𝑥𝐴) → 𝑍 ⊆ ℝ)
13 mbflimsup.3 . . . . . . . 8 (𝜑𝑀 ∈ ℤ)
143uzsup 12662 . . . . . . . 8 (𝑀 ∈ ℤ → sup(𝑍, ℝ*, < ) = +∞)
1513, 14syl 17 . . . . . . 7 (𝜑 → sup(𝑍, ℝ*, < ) = +∞)
1615adantr 481 . . . . . 6 ((𝜑𝑥𝐴) → sup(𝑍, ℝ*, < ) = +∞)
172, 7, 12, 16limsupval2 14211 . . . . 5 ((𝜑𝑥𝐴) → (lim sup‘(𝑛𝑍𝐵)) = inf((𝐻𝑍), ℝ*, < ))
18 imassrn 5477 . . . . . . 7 (𝐻𝑍) ⊆ ran 𝐻
1913adantr 481 . . . . . . . . 9 ((𝜑𝑥𝐴) → 𝑀 ∈ ℤ)
20 mbflimsup.6 . . . . . . . . . . 11 ((𝜑 ∧ (𝑛𝑍𝑥𝐴)) → 𝐵 ∈ ℝ)
2120anass1rs 849 . . . . . . . . . 10 (((𝜑𝑥𝐴) ∧ 𝑛𝑍) → 𝐵 ∈ ℝ)
22 eqid 2622 . . . . . . . . . 10 (𝑛𝑍𝐵) = (𝑛𝑍𝐵)
2321, 22fmptd 6385 . . . . . . . . 9 ((𝜑𝑥𝐴) → (𝑛𝑍𝐵):𝑍⟶ℝ)
24 mbflimsup.4 . . . . . . . . . 10 ((𝜑𝑥𝐴) → (lim sup‘(𝑛𝑍𝐵)) ∈ ℝ)
2524ltpnfd 11955 . . . . . . . . 9 ((𝜑𝑥𝐴) → (lim sup‘(𝑛𝑍𝐵)) < +∞)
262, 3limsupgre 14212 . . . . . . . . 9 ((𝑀 ∈ ℤ ∧ (𝑛𝑍𝐵):𝑍⟶ℝ ∧ (lim sup‘(𝑛𝑍𝐵)) < +∞) → 𝐻:ℝ⟶ℝ)
2719, 23, 25, 26syl3anc 1326 . . . . . . . 8 ((𝜑𝑥𝐴) → 𝐻:ℝ⟶ℝ)
28 frn 6053 . . . . . . . 8 (𝐻:ℝ⟶ℝ → ran 𝐻 ⊆ ℝ)
2927, 28syl 17 . . . . . . 7 ((𝜑𝑥𝐴) → ran 𝐻 ⊆ ℝ)
3018, 29syl5ss 3614 . . . . . 6 ((𝜑𝑥𝐴) → (𝐻𝑍) ⊆ ℝ)
31 fdm 6051 . . . . . . . . . . 11 (𝐻:ℝ⟶ℝ → dom 𝐻 = ℝ)
3227, 31syl 17 . . . . . . . . . 10 ((𝜑𝑥𝐴) → dom 𝐻 = ℝ)
3332ineq1d 3813 . . . . . . . . 9 ((𝜑𝑥𝐴) → (dom 𝐻𝑍) = (ℝ ∩ 𝑍))
34 sseqin2 3817 . . . . . . . . . 10 (𝑍 ⊆ ℝ ↔ (ℝ ∩ 𝑍) = 𝑍)
3511, 34mpbi 220 . . . . . . . . 9 (ℝ ∩ 𝑍) = 𝑍
3633, 35syl6eq 2672 . . . . . . . 8 ((𝜑𝑥𝐴) → (dom 𝐻𝑍) = 𝑍)
37 uzid 11702 . . . . . . . . . . . 12 (𝑀 ∈ ℤ → 𝑀 ∈ (ℤ𝑀))
3813, 37syl 17 . . . . . . . . . . 11 (𝜑𝑀 ∈ (ℤ𝑀))
3938, 3syl6eleqr 2712 . . . . . . . . . 10 (𝜑𝑀𝑍)
4039adantr 481 . . . . . . . . 9 ((𝜑𝑥𝐴) → 𝑀𝑍)
41 ne0i 3921 . . . . . . . . 9 (𝑀𝑍𝑍 ≠ ∅)
4240, 41syl 17 . . . . . . . 8 ((𝜑𝑥𝐴) → 𝑍 ≠ ∅)
4336, 42eqnetrd 2861 . . . . . . 7 ((𝜑𝑥𝐴) → (dom 𝐻𝑍) ≠ ∅)
44 imadisj 5484 . . . . . . . 8 ((𝐻𝑍) = ∅ ↔ (dom 𝐻𝑍) = ∅)
4544necon3bii 2846 . . . . . . 7 ((𝐻𝑍) ≠ ∅ ↔ (dom 𝐻𝑍) ≠ ∅)
4643, 45sylibr 224 . . . . . 6 ((𝜑𝑥𝐴) → (𝐻𝑍) ≠ ∅)
4724leidd 10594 . . . . . . . . . 10 ((𝜑𝑥𝐴) → (lim sup‘(𝑛𝑍𝐵)) ≤ (lim sup‘(𝑛𝑍𝐵)))
4821rexrd 10089 . . . . . . . . . . . 12 (((𝜑𝑥𝐴) ∧ 𝑛𝑍) → 𝐵 ∈ ℝ*)
4948, 22fmptd 6385 . . . . . . . . . . 11 ((𝜑𝑥𝐴) → (𝑛𝑍𝐵):𝑍⟶ℝ*)
5024rexrd 10089 . . . . . . . . . . 11 ((𝜑𝑥𝐴) → (lim sup‘(𝑛𝑍𝐵)) ∈ ℝ*)
512limsuple 14209 . . . . . . . . . . 11 ((𝑍 ⊆ ℝ ∧ (𝑛𝑍𝐵):𝑍⟶ℝ* ∧ (lim sup‘(𝑛𝑍𝐵)) ∈ ℝ*) → ((lim sup‘(𝑛𝑍𝐵)) ≤ (lim sup‘(𝑛𝑍𝐵)) ↔ ∀𝑦 ∈ ℝ (lim sup‘(𝑛𝑍𝐵)) ≤ (𝐻𝑦)))
5212, 49, 50, 51syl3anc 1326 . . . . . . . . . 10 ((𝜑𝑥𝐴) → ((lim sup‘(𝑛𝑍𝐵)) ≤ (lim sup‘(𝑛𝑍𝐵)) ↔ ∀𝑦 ∈ ℝ (lim sup‘(𝑛𝑍𝐵)) ≤ (𝐻𝑦)))
5347, 52mpbid 222 . . . . . . . . 9 ((𝜑𝑥𝐴) → ∀𝑦 ∈ ℝ (lim sup‘(𝑛𝑍𝐵)) ≤ (𝐻𝑦))
54 ssralv 3666 . . . . . . . . 9 (𝑍 ⊆ ℝ → (∀𝑦 ∈ ℝ (lim sup‘(𝑛𝑍𝐵)) ≤ (𝐻𝑦) → ∀𝑦𝑍 (lim sup‘(𝑛𝑍𝐵)) ≤ (𝐻𝑦)))
5511, 53, 54mpsyl 68 . . . . . . . 8 ((𝜑𝑥𝐴) → ∀𝑦𝑍 (lim sup‘(𝑛𝑍𝐵)) ≤ (𝐻𝑦))
562limsupgf 14206 . . . . . . . . . 10 𝐻:ℝ⟶ℝ*
57 ffn 6045 . . . . . . . . . 10 (𝐻:ℝ⟶ℝ*𝐻 Fn ℝ)
5856, 57ax-mp 5 . . . . . . . . 9 𝐻 Fn ℝ
59 breq2 4657 . . . . . . . . . 10 (𝑧 = (𝐻𝑦) → ((lim sup‘(𝑛𝑍𝐵)) ≤ 𝑧 ↔ (lim sup‘(𝑛𝑍𝐵)) ≤ (𝐻𝑦)))
6059ralima 6498 . . . . . . . . 9 ((𝐻 Fn ℝ ∧ 𝑍 ⊆ ℝ) → (∀𝑧 ∈ (𝐻𝑍)(lim sup‘(𝑛𝑍𝐵)) ≤ 𝑧 ↔ ∀𝑦𝑍 (lim sup‘(𝑛𝑍𝐵)) ≤ (𝐻𝑦)))
6158, 12, 60sylancr 695 . . . . . . . 8 ((𝜑𝑥𝐴) → (∀𝑧 ∈ (𝐻𝑍)(lim sup‘(𝑛𝑍𝐵)) ≤ 𝑧 ↔ ∀𝑦𝑍 (lim sup‘(𝑛𝑍𝐵)) ≤ (𝐻𝑦)))
6255, 61mpbird 247 . . . . . . 7 ((𝜑𝑥𝐴) → ∀𝑧 ∈ (𝐻𝑍)(lim sup‘(𝑛𝑍𝐵)) ≤ 𝑧)
63 breq1 4656 . . . . . . . . 9 (𝑦 = (lim sup‘(𝑛𝑍𝐵)) → (𝑦𝑧 ↔ (lim sup‘(𝑛𝑍𝐵)) ≤ 𝑧))
6463ralbidv 2986 . . . . . . . 8 (𝑦 = (lim sup‘(𝑛𝑍𝐵)) → (∀𝑧 ∈ (𝐻𝑍)𝑦𝑧 ↔ ∀𝑧 ∈ (𝐻𝑍)(lim sup‘(𝑛𝑍𝐵)) ≤ 𝑧))
6564rspcev 3309 . . . . . . 7 (((lim sup‘(𝑛𝑍𝐵)) ∈ ℝ ∧ ∀𝑧 ∈ (𝐻𝑍)(lim sup‘(𝑛𝑍𝐵)) ≤ 𝑧) → ∃𝑦 ∈ ℝ ∀𝑧 ∈ (𝐻𝑍)𝑦𝑧)
6624, 62, 65syl2anc 693 . . . . . 6 ((𝜑𝑥𝐴) → ∃𝑦 ∈ ℝ ∀𝑧 ∈ (𝐻𝑍)𝑦𝑧)
67 infxrre 12166 . . . . . 6 (((𝐻𝑍) ⊆ ℝ ∧ (𝐻𝑍) ≠ ∅ ∧ ∃𝑦 ∈ ℝ ∀𝑧 ∈ (𝐻𝑍)𝑦𝑧) → inf((𝐻𝑍), ℝ*, < ) = inf((𝐻𝑍), ℝ, < ))
6830, 46, 66, 67syl3anc 1326 . . . . 5 ((𝜑𝑥𝐴) → inf((𝐻𝑍), ℝ*, < ) = inf((𝐻𝑍), ℝ, < ))
69 df-ima 5127 . . . . . . 7 (𝐻𝑍) = ran (𝐻𝑍)
7027feqmptd 6249 . . . . . . . . . . 11 ((𝜑𝑥𝐴) → 𝐻 = (𝑖 ∈ ℝ ↦ (𝐻𝑖)))
7170reseq1d 5395 . . . . . . . . . 10 ((𝜑𝑥𝐴) → (𝐻𝑍) = ((𝑖 ∈ ℝ ↦ (𝐻𝑖)) ↾ 𝑍))
72 resmpt 5449 . . . . . . . . . . 11 (𝑍 ⊆ ℝ → ((𝑖 ∈ ℝ ↦ (𝐻𝑖)) ↾ 𝑍) = (𝑖𝑍 ↦ (𝐻𝑖)))
7311, 72ax-mp 5 . . . . . . . . . 10 ((𝑖 ∈ ℝ ↦ (𝐻𝑖)) ↾ 𝑍) = (𝑖𝑍 ↦ (𝐻𝑖))
7471, 73syl6eq 2672 . . . . . . . . 9 ((𝜑𝑥𝐴) → (𝐻𝑍) = (𝑖𝑍 ↦ (𝐻𝑖)))
7511sseli 3599 . . . . . . . . . . . . 13 (𝑖𝑍𝑖 ∈ ℝ)
76 ffvelrn 6357 . . . . . . . . . . . . 13 ((𝐻:ℝ⟶ℝ ∧ 𝑖 ∈ ℝ) → (𝐻𝑖) ∈ ℝ)
7727, 75, 76syl2an 494 . . . . . . . . . . . 12 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → (𝐻𝑖) ∈ ℝ)
7877rexrd 10089 . . . . . . . . . . 11 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → (𝐻𝑖) ∈ ℝ*)
79 simplll 798 . . . . . . . . . . . . . . . 16 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ 𝑛 ∈ (ℤ𝑖)) → 𝜑)
803uztrn2 11705 . . . . . . . . . . . . . . . . 17 ((𝑖𝑍𝑛 ∈ (ℤ𝑖)) → 𝑛𝑍)
8180adantll 750 . . . . . . . . . . . . . . . 16 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ 𝑛 ∈ (ℤ𝑖)) → 𝑛𝑍)
82 simpllr 799 . . . . . . . . . . . . . . . 16 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ 𝑛 ∈ (ℤ𝑖)) → 𝑥𝐴)
8379, 81, 82, 20syl12anc 1324 . . . . . . . . . . . . . . 15 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ 𝑛 ∈ (ℤ𝑖)) → 𝐵 ∈ ℝ)
84 eqid 2622 . . . . . . . . . . . . . . 15 (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) = (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)
8583, 84fmptd 6385 . . . . . . . . . . . . . 14 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → (𝑛 ∈ (ℤ𝑖) ↦ 𝐵):(ℤ𝑖)⟶ℝ)
86 frn 6053 . . . . . . . . . . . . . 14 ((𝑛 ∈ (ℤ𝑖) ↦ 𝐵):(ℤ𝑖)⟶ℝ → ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) ⊆ ℝ)
8785, 86syl 17 . . . . . . . . . . . . 13 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) ⊆ ℝ)
8884, 83dmmptd 6024 . . . . . . . . . . . . . . 15 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → dom (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) = (ℤ𝑖))
89 simpr 477 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑖𝑍) → 𝑖𝑍)
9089, 3syl6eleq 2711 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑖𝑍) → 𝑖 ∈ (ℤ𝑀))
91 eluzelz 11697 . . . . . . . . . . . . . . . . . 18 (𝑖 ∈ (ℤ𝑀) → 𝑖 ∈ ℤ)
9290, 91syl 17 . . . . . . . . . . . . . . . . 17 ((𝜑𝑖𝑍) → 𝑖 ∈ ℤ)
9392adantlr 751 . . . . . . . . . . . . . . . 16 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → 𝑖 ∈ ℤ)
94 uzid 11702 . . . . . . . . . . . . . . . 16 (𝑖 ∈ ℤ → 𝑖 ∈ (ℤ𝑖))
95 ne0i 3921 . . . . . . . . . . . . . . . 16 (𝑖 ∈ (ℤ𝑖) → (ℤ𝑖) ≠ ∅)
9693, 94, 953syl 18 . . . . . . . . . . . . . . 15 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → (ℤ𝑖) ≠ ∅)
9788, 96eqnetrd 2861 . . . . . . . . . . . . . 14 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → dom (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) ≠ ∅)
98 dm0rn0 5342 . . . . . . . . . . . . . . 15 (dom (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) = ∅ ↔ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) = ∅)
9998necon3bii 2846 . . . . . . . . . . . . . 14 (dom (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) ≠ ∅ ↔ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) ≠ ∅)
10097, 99sylib 208 . . . . . . . . . . . . 13 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) ≠ ∅)
10190adantlr 751 . . . . . . . . . . . . . . . . . . 19 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → 𝑖 ∈ (ℤ𝑀))
102 uzss 11708 . . . . . . . . . . . . . . . . . . 19 (𝑖 ∈ (ℤ𝑀) → (ℤ𝑖) ⊆ (ℤ𝑀))
103101, 102syl 17 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → (ℤ𝑖) ⊆ (ℤ𝑀))
104103, 3syl6sseqr 3652 . . . . . . . . . . . . . . . . 17 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → (ℤ𝑖) ⊆ 𝑍)
10577leidd 10594 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → (𝐻𝑖) ≤ (𝐻𝑖))
10611a1i 11 . . . . . . . . . . . . . . . . . . 19 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → 𝑍 ⊆ ℝ)
10749adantr 481 . . . . . . . . . . . . . . . . . . 19 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → (𝑛𝑍𝐵):𝑍⟶ℝ*)
108 simpr 477 . . . . . . . . . . . . . . . . . . . 20 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → 𝑖𝑍)
10911, 108sseldi 3601 . . . . . . . . . . . . . . . . . . 19 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → 𝑖 ∈ ℝ)
1102limsupgle 14208 . . . . . . . . . . . . . . . . . . 19 (((𝑍 ⊆ ℝ ∧ (𝑛𝑍𝐵):𝑍⟶ℝ*) ∧ 𝑖 ∈ ℝ ∧ (𝐻𝑖) ∈ ℝ*) → ((𝐻𝑖) ≤ (𝐻𝑖) ↔ ∀𝑘𝑍 (𝑖𝑘 → ((𝑛𝑍𝐵)‘𝑘) ≤ (𝐻𝑖))))
111106, 107, 109, 78, 110syl211anc 1332 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → ((𝐻𝑖) ≤ (𝐻𝑖) ↔ ∀𝑘𝑍 (𝑖𝑘 → ((𝑛𝑍𝐵)‘𝑘) ≤ (𝐻𝑖))))
112105, 111mpbid 222 . . . . . . . . . . . . . . . . 17 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → ∀𝑘𝑍 (𝑖𝑘 → ((𝑛𝑍𝐵)‘𝑘) ≤ (𝐻𝑖)))
113 ssralv 3666 . . . . . . . . . . . . . . . . 17 ((ℤ𝑖) ⊆ 𝑍 → (∀𝑘𝑍 (𝑖𝑘 → ((𝑛𝑍𝐵)‘𝑘) ≤ (𝐻𝑖)) → ∀𝑘 ∈ (ℤ𝑖)(𝑖𝑘 → ((𝑛𝑍𝐵)‘𝑘) ≤ (𝐻𝑖))))
114104, 112, 113sylc 65 . . . . . . . . . . . . . . . 16 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → ∀𝑘 ∈ (ℤ𝑖)(𝑖𝑘 → ((𝑛𝑍𝐵)‘𝑘) ≤ (𝐻𝑖)))
115104adantr 481 . . . . . . . . . . . . . . . . . . . . . 22 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ 𝑘 ∈ (ℤ𝑖)) → (ℤ𝑖) ⊆ 𝑍)
116115resmptd 5452 . . . . . . . . . . . . . . . . . . . . 21 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ 𝑘 ∈ (ℤ𝑖)) → ((𝑛𝑍𝐵) ↾ (ℤ𝑖)) = (𝑛 ∈ (ℤ𝑖) ↦ 𝐵))
117116fveq1d 6193 . . . . . . . . . . . . . . . . . . . 20 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ 𝑘 ∈ (ℤ𝑖)) → (((𝑛𝑍𝐵) ↾ (ℤ𝑖))‘𝑘) = ((𝑛 ∈ (ℤ𝑖) ↦ 𝐵)‘𝑘))
118 fvres 6207 . . . . . . . . . . . . . . . . . . . . 21 (𝑘 ∈ (ℤ𝑖) → (((𝑛𝑍𝐵) ↾ (ℤ𝑖))‘𝑘) = ((𝑛𝑍𝐵)‘𝑘))
119118adantl 482 . . . . . . . . . . . . . . . . . . . 20 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ 𝑘 ∈ (ℤ𝑖)) → (((𝑛𝑍𝐵) ↾ (ℤ𝑖))‘𝑘) = ((𝑛𝑍𝐵)‘𝑘))
120117, 119eqtr3d 2658 . . . . . . . . . . . . . . . . . . 19 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ 𝑘 ∈ (ℤ𝑖)) → ((𝑛 ∈ (ℤ𝑖) ↦ 𝐵)‘𝑘) = ((𝑛𝑍𝐵)‘𝑘))
121120breq1d 4663 . . . . . . . . . . . . . . . . . 18 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ 𝑘 ∈ (ℤ𝑖)) → (((𝑛 ∈ (ℤ𝑖) ↦ 𝐵)‘𝑘) ≤ (𝐻𝑖) ↔ ((𝑛𝑍𝐵)‘𝑘) ≤ (𝐻𝑖)))
122 eluzle 11700 . . . . . . . . . . . . . . . . . . . 20 (𝑘 ∈ (ℤ𝑖) → 𝑖𝑘)
123122adantl 482 . . . . . . . . . . . . . . . . . . 19 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ 𝑘 ∈ (ℤ𝑖)) → 𝑖𝑘)
124 biimt 350 . . . . . . . . . . . . . . . . . . 19 (𝑖𝑘 → (((𝑛𝑍𝐵)‘𝑘) ≤ (𝐻𝑖) ↔ (𝑖𝑘 → ((𝑛𝑍𝐵)‘𝑘) ≤ (𝐻𝑖))))
125123, 124syl 17 . . . . . . . . . . . . . . . . . 18 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ 𝑘 ∈ (ℤ𝑖)) → (((𝑛𝑍𝐵)‘𝑘) ≤ (𝐻𝑖) ↔ (𝑖𝑘 → ((𝑛𝑍𝐵)‘𝑘) ≤ (𝐻𝑖))))
126121, 125bitrd 268 . . . . . . . . . . . . . . . . 17 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ 𝑘 ∈ (ℤ𝑖)) → (((𝑛 ∈ (ℤ𝑖) ↦ 𝐵)‘𝑘) ≤ (𝐻𝑖) ↔ (𝑖𝑘 → ((𝑛𝑍𝐵)‘𝑘) ≤ (𝐻𝑖))))
127126ralbidva 2985 . . . . . . . . . . . . . . . 16 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → (∀𝑘 ∈ (ℤ𝑖)((𝑛 ∈ (ℤ𝑖) ↦ 𝐵)‘𝑘) ≤ (𝐻𝑖) ↔ ∀𝑘 ∈ (ℤ𝑖)(𝑖𝑘 → ((𝑛𝑍𝐵)‘𝑘) ≤ (𝐻𝑖))))
128114, 127mpbird 247 . . . . . . . . . . . . . . 15 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → ∀𝑘 ∈ (ℤ𝑖)((𝑛 ∈ (ℤ𝑖) ↦ 𝐵)‘𝑘) ≤ (𝐻𝑖))
129 ffn 6045 . . . . . . . . . . . . . . . 16 ((𝑛 ∈ (ℤ𝑖) ↦ 𝐵):(ℤ𝑖)⟶ℝ → (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) Fn (ℤ𝑖))
130 breq1 4656 . . . . . . . . . . . . . . . . 17 (𝑧 = ((𝑛 ∈ (ℤ𝑖) ↦ 𝐵)‘𝑘) → (𝑧 ≤ (𝐻𝑖) ↔ ((𝑛 ∈ (ℤ𝑖) ↦ 𝐵)‘𝑘) ≤ (𝐻𝑖)))
131130ralrn 6362 . . . . . . . . . . . . . . . 16 ((𝑛 ∈ (ℤ𝑖) ↦ 𝐵) Fn (ℤ𝑖) → (∀𝑧 ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)𝑧 ≤ (𝐻𝑖) ↔ ∀𝑘 ∈ (ℤ𝑖)((𝑛 ∈ (ℤ𝑖) ↦ 𝐵)‘𝑘) ≤ (𝐻𝑖)))
13285, 129, 1313syl 18 . . . . . . . . . . . . . . 15 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → (∀𝑧 ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)𝑧 ≤ (𝐻𝑖) ↔ ∀𝑘 ∈ (ℤ𝑖)((𝑛 ∈ (ℤ𝑖) ↦ 𝐵)‘𝑘) ≤ (𝐻𝑖)))
133128, 132mpbird 247 . . . . . . . . . . . . . 14 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → ∀𝑧 ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)𝑧 ≤ (𝐻𝑖))
134 breq2 4657 . . . . . . . . . . . . . . . 16 (𝑦 = (𝐻𝑖) → (𝑧𝑦𝑧 ≤ (𝐻𝑖)))
135134ralbidv 2986 . . . . . . . . . . . . . . 15 (𝑦 = (𝐻𝑖) → (∀𝑧 ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)𝑧𝑦 ↔ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)𝑧 ≤ (𝐻𝑖)))
136135rspcev 3309 . . . . . . . . . . . . . 14 (((𝐻𝑖) ∈ ℝ ∧ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)𝑧 ≤ (𝐻𝑖)) → ∃𝑦 ∈ ℝ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)𝑧𝑦)
13777, 133, 136syl2anc 693 . . . . . . . . . . . . 13 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → ∃𝑦 ∈ ℝ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)𝑧𝑦)
138 suprcl 10983 . . . . . . . . . . . . 13 ((ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) ⊆ ℝ ∧ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) ≠ ∅ ∧ ∃𝑦 ∈ ℝ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)𝑧𝑦) → sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ) ∈ ℝ)
13987, 100, 137, 138syl3anc 1326 . . . . . . . . . . . 12 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ) ∈ ℝ)
140139rexrd 10089 . . . . . . . . . . 11 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ) ∈ ℝ*)
14187adantr 481 . . . . . . . . . . . . . . 15 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ (𝑘𝑍𝑖𝑘)) → ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) ⊆ ℝ)
142100adantr 481 . . . . . . . . . . . . . . 15 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ (𝑘𝑍𝑖𝑘)) → ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) ≠ ∅)
143137adantr 481 . . . . . . . . . . . . . . 15 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ (𝑘𝑍𝑖𝑘)) → ∃𝑦 ∈ ℝ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)𝑧𝑦)
1449sseli 3599 . . . . . . . . . . . . . . . . . . . 20 (𝑘𝑍𝑘 ∈ ℤ)
145 eluz 11701 . . . . . . . . . . . . . . . . . . . 20 ((𝑖 ∈ ℤ ∧ 𝑘 ∈ ℤ) → (𝑘 ∈ (ℤ𝑖) ↔ 𝑖𝑘))
14693, 144, 145syl2an 494 . . . . . . . . . . . . . . . . . . 19 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ 𝑘𝑍) → (𝑘 ∈ (ℤ𝑖) ↔ 𝑖𝑘))
147146biimprd 238 . . . . . . . . . . . . . . . . . 18 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ 𝑘𝑍) → (𝑖𝑘𝑘 ∈ (ℤ𝑖)))
148147impr 649 . . . . . . . . . . . . . . . . 17 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ (𝑘𝑍𝑖𝑘)) → 𝑘 ∈ (ℤ𝑖))
149148, 120syldan 487 . . . . . . . . . . . . . . . 16 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ (𝑘𝑍𝑖𝑘)) → ((𝑛 ∈ (ℤ𝑖) ↦ 𝐵)‘𝑘) = ((𝑛𝑍𝐵)‘𝑘))
15085adantr 481 . . . . . . . . . . . . . . . . . 18 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ (𝑘𝑍𝑖𝑘)) → (𝑛 ∈ (ℤ𝑖) ↦ 𝐵):(ℤ𝑖)⟶ℝ)
151150, 129syl 17 . . . . . . . . . . . . . . . . 17 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ (𝑘𝑍𝑖𝑘)) → (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) Fn (ℤ𝑖))
152 fnfvelrn 6356 . . . . . . . . . . . . . . . . 17 (((𝑛 ∈ (ℤ𝑖) ↦ 𝐵) Fn (ℤ𝑖) ∧ 𝑘 ∈ (ℤ𝑖)) → ((𝑛 ∈ (ℤ𝑖) ↦ 𝐵)‘𝑘) ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵))
153151, 148, 152syl2anc 693 . . . . . . . . . . . . . . . 16 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ (𝑘𝑍𝑖𝑘)) → ((𝑛 ∈ (ℤ𝑖) ↦ 𝐵)‘𝑘) ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵))
154149, 153eqeltrrd 2702 . . . . . . . . . . . . . . 15 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ (𝑘𝑍𝑖𝑘)) → ((𝑛𝑍𝐵)‘𝑘) ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵))
155 suprub 10984 . . . . . . . . . . . . . . 15 (((ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) ⊆ ℝ ∧ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) ≠ ∅ ∧ ∃𝑦 ∈ ℝ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)𝑧𝑦) ∧ ((𝑛𝑍𝐵)‘𝑘) ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)) → ((𝑛𝑍𝐵)‘𝑘) ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ))
156141, 142, 143, 154, 155syl31anc 1329 . . . . . . . . . . . . . 14 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ (𝑘𝑍𝑖𝑘)) → ((𝑛𝑍𝐵)‘𝑘) ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ))
157156expr 643 . . . . . . . . . . . . 13 ((((𝜑𝑥𝐴) ∧ 𝑖𝑍) ∧ 𝑘𝑍) → (𝑖𝑘 → ((𝑛𝑍𝐵)‘𝑘) ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )))
158157ralrimiva 2966 . . . . . . . . . . . 12 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → ∀𝑘𝑍 (𝑖𝑘 → ((𝑛𝑍𝐵)‘𝑘) ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )))
1592limsupgle 14208 . . . . . . . . . . . . 13 (((𝑍 ⊆ ℝ ∧ (𝑛𝑍𝐵):𝑍⟶ℝ*) ∧ 𝑖 ∈ ℝ ∧ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ) ∈ ℝ*) → ((𝐻𝑖) ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ) ↔ ∀𝑘𝑍 (𝑖𝑘 → ((𝑛𝑍𝐵)‘𝑘) ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ))))
160106, 107, 109, 140, 159syl211anc 1332 . . . . . . . . . . . 12 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → ((𝐻𝑖) ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ) ↔ ∀𝑘𝑍 (𝑖𝑘 → ((𝑛𝑍𝐵)‘𝑘) ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ))))
161158, 160mpbird 247 . . . . . . . . . . 11 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → (𝐻𝑖) ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ))
162 suprleub 10989 . . . . . . . . . . . . 13 (((ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) ⊆ ℝ ∧ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵) ≠ ∅ ∧ ∃𝑦 ∈ ℝ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)𝑧𝑦) ∧ (𝐻𝑖) ∈ ℝ) → (sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ) ≤ (𝐻𝑖) ↔ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)𝑧 ≤ (𝐻𝑖)))
16387, 100, 137, 77, 162syl31anc 1329 . . . . . . . . . . . 12 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → (sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ) ≤ (𝐻𝑖) ↔ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)𝑧 ≤ (𝐻𝑖)))
164133, 163mpbird 247 . . . . . . . . . . 11 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ) ≤ (𝐻𝑖))
16578, 140, 161, 164xrletrid 11986 . . . . . . . . . 10 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → (𝐻𝑖) = sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ))
166165mpteq2dva 4744 . . . . . . . . 9 ((𝜑𝑥𝐴) → (𝑖𝑍 ↦ (𝐻𝑖)) = (𝑖𝑍 ↦ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )))
16774, 166eqtrd 2656 . . . . . . . 8 ((𝜑𝑥𝐴) → (𝐻𝑍) = (𝑖𝑍 ↦ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )))
168167rneqd 5353 . . . . . . 7 ((𝜑𝑥𝐴) → ran (𝐻𝑍) = ran (𝑖𝑍 ↦ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )))
16969, 168syl5eq 2668 . . . . . 6 ((𝜑𝑥𝐴) → (𝐻𝑍) = ran (𝑖𝑍 ↦ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )))
170169infeq1d 8383 . . . . 5 ((𝜑𝑥𝐴) → inf((𝐻𝑍), ℝ, < ) = inf(ran (𝑖𝑍 ↦ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )), ℝ, < ))
17117, 68, 1703eqtrd 2660 . . . 4 ((𝜑𝑥𝐴) → (lim sup‘(𝑛𝑍𝐵)) = inf(ran (𝑖𝑍 ↦ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )), ℝ, < ))
172171mpteq2dva 4744 . . 3 (𝜑 → (𝑥𝐴 ↦ (lim sup‘(𝑛𝑍𝐵))) = (𝑥𝐴 ↦ inf(ran (𝑖𝑍 ↦ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )), ℝ, < )))
1731, 172syl5eq 2668 . 2 (𝜑𝐺 = (𝑥𝐴 ↦ inf(ran (𝑖𝑍 ↦ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )), ℝ, < )))
174 eqid 2622 . . 3 (𝑥𝐴 ↦ inf(ran (𝑖𝑍 ↦ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )), ℝ, < )) = (𝑥𝐴 ↦ inf(ran (𝑖𝑍 ↦ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )), ℝ, < ))
175 eqid 2622 . . . 4 (ℤ𝑖) = (ℤ𝑖)
176 eqid 2622 . . . 4 (𝑥𝐴 ↦ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )) = (𝑥𝐴 ↦ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ))
177 simpll 790 . . . . 5 (((𝜑𝑖𝑍) ∧ 𝑛 ∈ (ℤ𝑖)) → 𝜑)
17880adantll 750 . . . . 5 (((𝜑𝑖𝑍) ∧ 𝑛 ∈ (ℤ𝑖)) → 𝑛𝑍)
179 mbflimsup.5 . . . . 5 ((𝜑𝑛𝑍) → (𝑥𝐴𝐵) ∈ MblFn)
180177, 178, 179syl2anc 693 . . . 4 (((𝜑𝑖𝑍) ∧ 𝑛 ∈ (ℤ𝑖)) → (𝑥𝐴𝐵) ∈ MblFn)
181 simpll 790 . . . . 5 (((𝜑𝑖𝑍) ∧ (𝑛 ∈ (ℤ𝑖) ∧ 𝑥𝐴)) → 𝜑)
18280ad2ant2lr 784 . . . . 5 (((𝜑𝑖𝑍) ∧ (𝑛 ∈ (ℤ𝑖) ∧ 𝑥𝐴)) → 𝑛𝑍)
183 simprr 796 . . . . 5 (((𝜑𝑖𝑍) ∧ (𝑛 ∈ (ℤ𝑖) ∧ 𝑥𝐴)) → 𝑥𝐴)
184181, 182, 183, 20syl12anc 1324 . . . 4 (((𝜑𝑖𝑍) ∧ (𝑛 ∈ (ℤ𝑖) ∧ 𝑥𝐴)) → 𝐵 ∈ ℝ)
18583ralrimiva 2966 . . . . . . . 8 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → ∀𝑛 ∈ (ℤ𝑖)𝐵 ∈ ℝ)
186 breq1 4656 . . . . . . . . 9 (𝑧 = 𝐵 → (𝑧𝑦𝐵𝑦))
18784, 186ralrnmpt 6368 . . . . . . . 8 (∀𝑛 ∈ (ℤ𝑖)𝐵 ∈ ℝ → (∀𝑧 ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)𝑧𝑦 ↔ ∀𝑛 ∈ (ℤ𝑖)𝐵𝑦))
188185, 187syl 17 . . . . . . 7 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → (∀𝑧 ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)𝑧𝑦 ↔ ∀𝑛 ∈ (ℤ𝑖)𝐵𝑦))
189188rexbidv 3052 . . . . . 6 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → (∃𝑦 ∈ ℝ ∀𝑧 ∈ ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵)𝑧𝑦 ↔ ∃𝑦 ∈ ℝ ∀𝑛 ∈ (ℤ𝑖)𝐵𝑦))
190137, 189mpbid 222 . . . . 5 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → ∃𝑦 ∈ ℝ ∀𝑛 ∈ (ℤ𝑖)𝐵𝑦)
191190an32s 846 . . . 4 (((𝜑𝑖𝑍) ∧ 𝑥𝐴) → ∃𝑦 ∈ ℝ ∀𝑛 ∈ (ℤ𝑖)𝐵𝑦)
192175, 176, 92, 180, 184, 191mbfsup 23431 . . 3 ((𝜑𝑖𝑍) → (𝑥𝐴 ↦ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )) ∈ MblFn)
193139an32s 846 . . . 4 (((𝜑𝑖𝑍) ∧ 𝑥𝐴) → sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ) ∈ ℝ)
194193anasss 679 . . 3 ((𝜑 ∧ (𝑖𝑍𝑥𝐴)) → sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ) ∈ ℝ)
1952limsuple 14209 . . . . . . . 8 ((𝑍 ⊆ ℝ ∧ (𝑛𝑍𝐵):𝑍⟶ℝ* ∧ (lim sup‘(𝑛𝑍𝐵)) ∈ ℝ*) → ((lim sup‘(𝑛𝑍𝐵)) ≤ (lim sup‘(𝑛𝑍𝐵)) ↔ ∀𝑖 ∈ ℝ (lim sup‘(𝑛𝑍𝐵)) ≤ (𝐻𝑖)))
19612, 49, 50, 195syl3anc 1326 . . . . . . 7 ((𝜑𝑥𝐴) → ((lim sup‘(𝑛𝑍𝐵)) ≤ (lim sup‘(𝑛𝑍𝐵)) ↔ ∀𝑖 ∈ ℝ (lim sup‘(𝑛𝑍𝐵)) ≤ (𝐻𝑖)))
19747, 196mpbid 222 . . . . . 6 ((𝜑𝑥𝐴) → ∀𝑖 ∈ ℝ (lim sup‘(𝑛𝑍𝐵)) ≤ (𝐻𝑖))
198 ssralv 3666 . . . . . 6 (𝑍 ⊆ ℝ → (∀𝑖 ∈ ℝ (lim sup‘(𝑛𝑍𝐵)) ≤ (𝐻𝑖) → ∀𝑖𝑍 (lim sup‘(𝑛𝑍𝐵)) ≤ (𝐻𝑖)))
19911, 197, 198mpsyl 68 . . . . 5 ((𝜑𝑥𝐴) → ∀𝑖𝑍 (lim sup‘(𝑛𝑍𝐵)) ≤ (𝐻𝑖))
200165breq2d 4665 . . . . . 6 (((𝜑𝑥𝐴) ∧ 𝑖𝑍) → ((lim sup‘(𝑛𝑍𝐵)) ≤ (𝐻𝑖) ↔ (lim sup‘(𝑛𝑍𝐵)) ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )))
201200ralbidva 2985 . . . . 5 ((𝜑𝑥𝐴) → (∀𝑖𝑍 (lim sup‘(𝑛𝑍𝐵)) ≤ (𝐻𝑖) ↔ ∀𝑖𝑍 (lim sup‘(𝑛𝑍𝐵)) ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )))
202199, 201mpbid 222 . . . 4 ((𝜑𝑥𝐴) → ∀𝑖𝑍 (lim sup‘(𝑛𝑍𝐵)) ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ))
203 breq1 4656 . . . . . 6 (𝑦 = (lim sup‘(𝑛𝑍𝐵)) → (𝑦 ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ) ↔ (lim sup‘(𝑛𝑍𝐵)) ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )))
204203ralbidv 2986 . . . . 5 (𝑦 = (lim sup‘(𝑛𝑍𝐵)) → (∀𝑖𝑍 𝑦 ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ) ↔ ∀𝑖𝑍 (lim sup‘(𝑛𝑍𝐵)) ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )))
205204rspcev 3309 . . . 4 (((lim sup‘(𝑛𝑍𝐵)) ∈ ℝ ∧ ∀𝑖𝑍 (lim sup‘(𝑛𝑍𝐵)) ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )) → ∃𝑦 ∈ ℝ ∀𝑖𝑍 𝑦 ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ))
20624, 202, 205syl2anc 693 . . 3 ((𝜑𝑥𝐴) → ∃𝑦 ∈ ℝ ∀𝑖𝑍 𝑦 ≤ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < ))
2073, 174, 13, 192, 194, 206mbfinf 23432 . 2 (𝜑 → (𝑥𝐴 ↦ inf(ran (𝑖𝑍 ↦ sup(ran (𝑛 ∈ (ℤ𝑖) ↦ 𝐵), ℝ, < )), ℝ, < )) ∈ MblFn)
208173, 207eqeltrd 2701 1 (𝜑𝐺 ∈ MblFn)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 196  wa 384   = wceq 1483  wcel 1990  wne 2794  wral 2912  wrex 2913  Vcvv 3200  cin 3573  wss 3574  c0 3915   class class class wbr 4653  cmpt 4729  dom cdm 5114  ran crn 5115  cres 5116  cima 5117   Fn wfn 5883  wf 5884  cfv 5888  (class class class)co 6650  supcsup 8346  infcinf 8347  cr 9935  +∞cpnf 10071  *cxr 10073   < clt 10074  cle 10075  cz 11377  cuz 11687  [,)cico 12177  lim supclsp 14201  MblFncmbf 23383
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-rep 4771  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949  ax-inf2 8538  ax-cc 9257  ax-cnex 9992  ax-resscn 9993  ax-1cn 9994  ax-icn 9995  ax-addcl 9996  ax-addrcl 9997  ax-mulcl 9998  ax-mulrcl 9999  ax-mulcom 10000  ax-addass 10001  ax-mulass 10002  ax-distr 10003  ax-i2m1 10004  ax-1ne0 10005  ax-1rid 10006  ax-rnegex 10007  ax-rrecex 10008  ax-cnre 10009  ax-pre-lttri 10010  ax-pre-lttrn 10011  ax-pre-ltadd 10012  ax-pre-mulgt0 10013  ax-pre-sup 10014
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1038  df-3an 1039  df-tru 1486  df-fal 1489  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-nel 2898  df-ral 2917  df-rex 2918  df-reu 2919  df-rmo 2920  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-pss 3590  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-tp 4182  df-op 4184  df-uni 4437  df-int 4476  df-iun 4522  df-disj 4621  df-br 4654  df-opab 4713  df-mpt 4730  df-tr 4753  df-id 5024  df-eprel 5029  df-po 5035  df-so 5036  df-fr 5073  df-se 5074  df-we 5075  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-pred 5680  df-ord 5726  df-on 5727  df-lim 5728  df-suc 5729  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-isom 5897  df-riota 6611  df-ov 6653  df-oprab 6654  df-mpt2 6655  df-of 6897  df-om 7066  df-1st 7168  df-2nd 7169  df-wrecs 7407  df-recs 7468  df-rdg 7506  df-1o 7560  df-2o 7561  df-oadd 7564  df-omul 7565  df-er 7742  df-map 7859  df-pm 7860  df-en 7956  df-dom 7957  df-sdom 7958  df-fin 7959  df-sup 8348  df-inf 8349  df-oi 8415  df-card 8765  df-acn 8768  df-cda 8990  df-pnf 10076  df-mnf 10077  df-xr 10078  df-ltxr 10079  df-le 10080  df-sub 10268  df-neg 10269  df-div 10685  df-nn 11021  df-2 11079  df-3 11080  df-n0 11293  df-z 11378  df-uz 11688  df-q 11789  df-rp 11833  df-xadd 11947  df-ioo 12179  df-ioc 12180  df-ico 12181  df-icc 12182  df-fz 12327  df-fzo 12466  df-fl 12593  df-seq 12802  df-exp 12861  df-hash 13118  df-cj 13839  df-re 13840  df-im 13841  df-sqrt 13975  df-abs 13976  df-limsup 14202  df-clim 14219  df-rlim 14220  df-sum 14417  df-xmet 19739  df-met 19740  df-ovol 23233  df-vol 23234  df-mbf 23388
This theorem is referenced by:  mbflimlem  23434
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