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Theorem limsupgtlem 40429
Description: For any positive real, the superior limit of F is larger than any of its values at large enough arguments, up to that positive real. (Contributed by Glauco Siliprandi, 2-Jan-2022.)
Hypotheses
Ref Expression
limsupgtlem.m (𝜑𝑀 ∈ ℤ)
limsupgtlem.z 𝑍 = (ℤ𝑀)
limsupgtlem.f (𝜑𝐹:𝑍⟶ℝ)
limsupgtlem.r (𝜑 → (lim sup‘𝐹) ∈ ℝ)
limsupgtlem.x (𝜑𝑋 ∈ ℝ+)
Assertion
Ref Expression
limsupgtlem (𝜑 → ∃𝑗𝑍𝑘 ∈ (ℤ𝑗)((𝐹𝑘) − 𝑋) < (lim sup‘𝐹))
Distinct variable groups:   𝑗,𝐹,𝑘   𝑗,𝑋,𝑘   𝑗,𝑍,𝑘   𝜑,𝑗,𝑘
Allowed substitution hints:   𝑀(𝑗,𝑘)

Proof of Theorem limsupgtlem
Dummy variable 𝑥 is distinct from all other variables.
StepHypRef Expression
1 nfv 1956 . . . 4 𝑗𝜑
2 limsupgtlem.m . . . . 5 (𝜑𝑀 ∈ ℤ)
3 limsupgtlem.z . . . . 5 𝑍 = (ℤ𝑀)
42, 3uzn0d 40067 . . . 4 (𝜑𝑍 ≠ ∅)
5 rnresss 39781 . . . . . . . 8 ran (𝐹 ↾ (ℤ𝑗)) ⊆ ran 𝐹
65a1i 11 . . . . . . 7 (𝜑 → ran (𝐹 ↾ (ℤ𝑗)) ⊆ ran 𝐹)
7 limsupgtlem.f . . . . . . . . 9 (𝜑𝐹:𝑍⟶ℝ)
87frexr 40019 . . . . . . . 8 (𝜑𝐹:𝑍⟶ℝ*)
98frnd 39842 . . . . . . 7 (𝜑 → ran 𝐹 ⊆ ℝ*)
106, 9sstrd 3719 . . . . . 6 (𝜑 → ran (𝐹 ↾ (ℤ𝑗)) ⊆ ℝ*)
1110supxrcld 39706 . . . . 5 (𝜑 → sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ∈ ℝ*)
1211adantr 472 . . . 4 ((𝜑𝑗𝑍) → sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ∈ ℝ*)
13 limsupgtlem.r . . . . . . 7 (𝜑 → (lim sup‘𝐹) ∈ ℝ)
14 nfcv 2866 . . . . . . . 8 𝑘𝐹
1514, 2, 3, 7limsupreuz 40389 . . . . . . 7 (𝜑 → ((lim sup‘𝐹) ∈ ℝ ↔ (∃𝑥 ∈ ℝ ∀𝑗𝑍𝑘 ∈ (ℤ𝑗)𝑥 ≤ (𝐹𝑘) ∧ ∃𝑥 ∈ ℝ ∀𝑘𝑍 (𝐹𝑘) ≤ 𝑥)))
1613, 15mpbid 222 . . . . . 6 (𝜑 → (∃𝑥 ∈ ℝ ∀𝑗𝑍𝑘 ∈ (ℤ𝑗)𝑥 ≤ (𝐹𝑘) ∧ ∃𝑥 ∈ ℝ ∀𝑘𝑍 (𝐹𝑘) ≤ 𝑥))
1716simpld 477 . . . . 5 (𝜑 → ∃𝑥 ∈ ℝ ∀𝑗𝑍𝑘 ∈ (ℤ𝑗)𝑥 ≤ (𝐹𝑘))
18 rexr 10198 . . . . . . . . . 10 (𝑥 ∈ ℝ → 𝑥 ∈ ℝ*)
1918ad4antlr 773 . . . . . . . . 9 (((((𝜑𝑥 ∈ ℝ) ∧ 𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) ∧ 𝑥 ≤ (𝐹𝑘)) → 𝑥 ∈ ℝ*)
207ad2antrr 764 . . . . . . . . . . . . 13 (((𝜑𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) → 𝐹:𝑍⟶ℝ)
213uztrn2 11818 . . . . . . . . . . . . . 14 ((𝑗𝑍𝑘 ∈ (ℤ𝑗)) → 𝑘𝑍)
2221adantll 752 . . . . . . . . . . . . 13 (((𝜑𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) → 𝑘𝑍)
2320, 22ffvelrnd 6475 . . . . . . . . . . . 12 (((𝜑𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) → (𝐹𝑘) ∈ ℝ)
2423rexrd 10202 . . . . . . . . . . 11 (((𝜑𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) → (𝐹𝑘) ∈ ℝ*)
25243impa 1100 . . . . . . . . . 10 ((𝜑𝑗𝑍𝑘 ∈ (ℤ𝑗)) → (𝐹𝑘) ∈ ℝ*)
2625ad5ant134 1429 . . . . . . . . 9 (((((𝜑𝑥 ∈ ℝ) ∧ 𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) ∧ 𝑥 ≤ (𝐹𝑘)) → (𝐹𝑘) ∈ ℝ*)
2711ad4antr 771 . . . . . . . . 9 (((((𝜑𝑥 ∈ ℝ) ∧ 𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) ∧ 𝑥 ≤ (𝐹𝑘)) → sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ∈ ℝ*)
28 simpr 479 . . . . . . . . 9 (((((𝜑𝑥 ∈ ℝ) ∧ 𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) ∧ 𝑥 ≤ (𝐹𝑘)) → 𝑥 ≤ (𝐹𝑘))
2910ad2antrr 764 . . . . . . . . . . . 12 (((𝜑𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) → ran (𝐹 ↾ (ℤ𝑗)) ⊆ ℝ*)
30 fvres 6320 . . . . . . . . . . . . . . 15 (𝑘 ∈ (ℤ𝑗) → ((𝐹 ↾ (ℤ𝑗))‘𝑘) = (𝐹𝑘))
3130eqcomd 2730 . . . . . . . . . . . . . 14 (𝑘 ∈ (ℤ𝑗) → (𝐹𝑘) = ((𝐹 ↾ (ℤ𝑗))‘𝑘))
3231adantl 473 . . . . . . . . . . . . 13 (((𝜑𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) → (𝐹𝑘) = ((𝐹 ↾ (ℤ𝑗))‘𝑘))
337ffnd 6159 . . . . . . . . . . . . . . . . 17 (𝜑𝐹 Fn 𝑍)
3433adantr 472 . . . . . . . . . . . . . . . 16 ((𝜑𝑗𝑍) → 𝐹 Fn 𝑍)
3522ssd 39668 . . . . . . . . . . . . . . . 16 ((𝜑𝑗𝑍) → (ℤ𝑗) ⊆ 𝑍)
36 fnssres 6117 . . . . . . . . . . . . . . . 16 ((𝐹 Fn 𝑍 ∧ (ℤ𝑗) ⊆ 𝑍) → (𝐹 ↾ (ℤ𝑗)) Fn (ℤ𝑗))
3734, 35, 36syl2anc 696 . . . . . . . . . . . . . . 15 ((𝜑𝑗𝑍) → (𝐹 ↾ (ℤ𝑗)) Fn (ℤ𝑗))
3837adantr 472 . . . . . . . . . . . . . 14 (((𝜑𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) → (𝐹 ↾ (ℤ𝑗)) Fn (ℤ𝑗))
39 simpr 479 . . . . . . . . . . . . . 14 (((𝜑𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) → 𝑘 ∈ (ℤ𝑗))
4038, 39fnfvelrnd 39895 . . . . . . . . . . . . 13 (((𝜑𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) → ((𝐹 ↾ (ℤ𝑗))‘𝑘) ∈ ran (𝐹 ↾ (ℤ𝑗)))
4132, 40eqeltrd 2803 . . . . . . . . . . . 12 (((𝜑𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) → (𝐹𝑘) ∈ ran (𝐹 ↾ (ℤ𝑗)))
42 eqid 2724 . . . . . . . . . . . 12 sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) = sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < )
4329, 41, 42supxrubd 39713 . . . . . . . . . . 11 (((𝜑𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) → (𝐹𝑘) ≤ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ))
44433impa 1100 . . . . . . . . . 10 ((𝜑𝑗𝑍𝑘 ∈ (ℤ𝑗)) → (𝐹𝑘) ≤ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ))
4544ad5ant134 1429 . . . . . . . . 9 (((((𝜑𝑥 ∈ ℝ) ∧ 𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) ∧ 𝑥 ≤ (𝐹𝑘)) → (𝐹𝑘) ≤ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ))
4619, 26, 27, 28, 45xrletrd 12107 . . . . . . . 8 (((((𝜑𝑥 ∈ ℝ) ∧ 𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) ∧ 𝑥 ≤ (𝐹𝑘)) → 𝑥 ≤ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ))
4746rexlimdva2 39755 . . . . . . 7 (((𝜑𝑥 ∈ ℝ) ∧ 𝑗𝑍) → (∃𝑘 ∈ (ℤ𝑗)𝑥 ≤ (𝐹𝑘) → 𝑥 ≤ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < )))
4847ralimdva 3064 . . . . . 6 ((𝜑𝑥 ∈ ℝ) → (∀𝑗𝑍𝑘 ∈ (ℤ𝑗)𝑥 ≤ (𝐹𝑘) → ∀𝑗𝑍 𝑥 ≤ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < )))
4948reximdva 3119 . . . . 5 (𝜑 → (∃𝑥 ∈ ℝ ∀𝑗𝑍𝑘 ∈ (ℤ𝑗)𝑥 ≤ (𝐹𝑘) → ∃𝑥 ∈ ℝ ∀𝑗𝑍 𝑥 ≤ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < )))
5017, 49mpd 15 . . . 4 (𝜑 → ∃𝑥 ∈ ℝ ∀𝑗𝑍 𝑥 ≤ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ))
51 limsupgtlem.x . . . . 5 (𝜑𝑋 ∈ ℝ+)
5251rphalfcld 11998 . . . 4 (𝜑 → (𝑋 / 2) ∈ ℝ+)
531, 4, 12, 50, 52infrpgernmpt 40110 . . 3 (𝜑 → ∃𝑗𝑍 sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ (inf(ran (𝑗𝑍 ↦ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < )), ℝ*, < ) +𝑒 (𝑋 / 2)))
54 simp3 1130 . . . . . . 7 ((𝜑𝑗𝑍 ∧ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ (inf(ran (𝑗𝑍 ↦ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < )), ℝ*, < ) +𝑒 (𝑋 / 2))) → sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ (inf(ran (𝑗𝑍 ↦ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < )), ℝ*, < ) +𝑒 (𝑋 / 2)))
552, 3, 8limsupvaluz 40360 . . . . . . . . . 10 (𝜑 → (lim sup‘𝐹) = inf(ran (𝑗𝑍 ↦ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < )), ℝ*, < ))
5655eqcomd 2730 . . . . . . . . 9 (𝜑 → inf(ran (𝑗𝑍 ↦ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < )), ℝ*, < ) = (lim sup‘𝐹))
5756oveq1d 6780 . . . . . . . 8 (𝜑 → (inf(ran (𝑗𝑍 ↦ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < )), ℝ*, < ) +𝑒 (𝑋 / 2)) = ((lim sup‘𝐹) +𝑒 (𝑋 / 2)))
58573ad2ant1 1125 . . . . . . 7 ((𝜑𝑗𝑍 ∧ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ (inf(ran (𝑗𝑍 ↦ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < )), ℝ*, < ) +𝑒 (𝑋 / 2))) → (inf(ran (𝑗𝑍 ↦ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < )), ℝ*, < ) +𝑒 (𝑋 / 2)) = ((lim sup‘𝐹) +𝑒 (𝑋 / 2)))
5954, 58breqtrd 4786 . . . . . 6 ((𝜑𝑗𝑍 ∧ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ (inf(ran (𝑗𝑍 ↦ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < )), ℝ*, < ) +𝑒 (𝑋 / 2))) → sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ ((lim sup‘𝐹) +𝑒 (𝑋 / 2)))
60243adantl3 1154 . . . . . . . . . 10 (((𝜑𝑗𝑍 ∧ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ ((lim sup‘𝐹) +𝑒 (𝑋 / 2))) ∧ 𝑘 ∈ (ℤ𝑗)) → (𝐹𝑘) ∈ ℝ*)
61 simpl1 1204 . . . . . . . . . . 11 (((𝜑𝑗𝑍 ∧ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ ((lim sup‘𝐹) +𝑒 (𝑋 / 2))) ∧ 𝑘 ∈ (ℤ𝑗)) → 𝜑)
6261, 11syl 17 . . . . . . . . . 10 (((𝜑𝑗𝑍 ∧ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ ((lim sup‘𝐹) +𝑒 (𝑋 / 2))) ∧ 𝑘 ∈ (ℤ𝑗)) → sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ∈ ℝ*)
633fvexi 6315 . . . . . . . . . . . . . . 15 𝑍 ∈ V
6463a1i 11 . . . . . . . . . . . . . 14 (𝜑𝑍 ∈ V)
657, 64fexd 39712 . . . . . . . . . . . . 13 (𝜑𝐹 ∈ V)
6665limsupcld 40342 . . . . . . . . . . . 12 (𝜑 → (lim sup‘𝐹) ∈ ℝ*)
6751rpred 11986 . . . . . . . . . . . . . 14 (𝜑𝑋 ∈ ℝ)
6867rehalfcld 11392 . . . . . . . . . . . . 13 (𝜑 → (𝑋 / 2) ∈ ℝ)
6968rexrd 10202 . . . . . . . . . . . 12 (𝜑 → (𝑋 / 2) ∈ ℝ*)
7066, 69xaddcld 12245 . . . . . . . . . . 11 (𝜑 → ((lim sup‘𝐹) +𝑒 (𝑋 / 2)) ∈ ℝ*)
7161, 70syl 17 . . . . . . . . . 10 (((𝜑𝑗𝑍 ∧ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ ((lim sup‘𝐹) +𝑒 (𝑋 / 2))) ∧ 𝑘 ∈ (ℤ𝑗)) → ((lim sup‘𝐹) +𝑒 (𝑋 / 2)) ∈ ℝ*)
72433adantl3 1154 . . . . . . . . . 10 (((𝜑𝑗𝑍 ∧ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ ((lim sup‘𝐹) +𝑒 (𝑋 / 2))) ∧ 𝑘 ∈ (ℤ𝑗)) → (𝐹𝑘) ≤ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ))
73 simpl3 1208 . . . . . . . . . 10 (((𝜑𝑗𝑍 ∧ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ ((lim sup‘𝐹) +𝑒 (𝑋 / 2))) ∧ 𝑘 ∈ (ℤ𝑗)) → sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ ((lim sup‘𝐹) +𝑒 (𝑋 / 2)))
7460, 62, 71, 72, 73xrletrd 12107 . . . . . . . . 9 (((𝜑𝑗𝑍 ∧ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ ((lim sup‘𝐹) +𝑒 (𝑋 / 2))) ∧ 𝑘 ∈ (ℤ𝑗)) → (𝐹𝑘) ≤ ((lim sup‘𝐹) +𝑒 (𝑋 / 2)))
7513, 68rexaddd 12179 . . . . . . . . . 10 (𝜑 → ((lim sup‘𝐹) +𝑒 (𝑋 / 2)) = ((lim sup‘𝐹) + (𝑋 / 2)))
7661, 75syl 17 . . . . . . . . 9 (((𝜑𝑗𝑍 ∧ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ ((lim sup‘𝐹) +𝑒 (𝑋 / 2))) ∧ 𝑘 ∈ (ℤ𝑗)) → ((lim sup‘𝐹) +𝑒 (𝑋 / 2)) = ((lim sup‘𝐹) + (𝑋 / 2)))
7774, 76breqtrd 4786 . . . . . . . 8 (((𝜑𝑗𝑍 ∧ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ ((lim sup‘𝐹) +𝑒 (𝑋 / 2))) ∧ 𝑘 ∈ (ℤ𝑗)) → (𝐹𝑘) ≤ ((lim sup‘𝐹) + (𝑋 / 2)))
7868ad2antrr 764 . . . . . . . . . 10 (((𝜑𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) → (𝑋 / 2) ∈ ℝ)
7913ad2antrr 764 . . . . . . . . . 10 (((𝜑𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) → (lim sup‘𝐹) ∈ ℝ)
8023, 78, 79lesubaddd 10737 . . . . . . . . 9 (((𝜑𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) → (((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹) ↔ (𝐹𝑘) ≤ ((lim sup‘𝐹) + (𝑋 / 2))))
81803adantl3 1154 . . . . . . . 8 (((𝜑𝑗𝑍 ∧ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ ((lim sup‘𝐹) +𝑒 (𝑋 / 2))) ∧ 𝑘 ∈ (ℤ𝑗)) → (((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹) ↔ (𝐹𝑘) ≤ ((lim sup‘𝐹) + (𝑋 / 2))))
8277, 81mpbird 247 . . . . . . 7 (((𝜑𝑗𝑍 ∧ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ ((lim sup‘𝐹) +𝑒 (𝑋 / 2))) ∧ 𝑘 ∈ (ℤ𝑗)) → ((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹))
8382ralrimiva 3068 . . . . . 6 ((𝜑𝑗𝑍 ∧ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ ((lim sup‘𝐹) +𝑒 (𝑋 / 2))) → ∀𝑘 ∈ (ℤ𝑗)((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹))
8459, 83syld3an3 1484 . . . . 5 ((𝜑𝑗𝑍 ∧ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ (inf(ran (𝑗𝑍 ↦ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < )), ℝ*, < ) +𝑒 (𝑋 / 2))) → ∀𝑘 ∈ (ℤ𝑗)((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹))
85843exp 1112 . . . 4 (𝜑 → (𝑗𝑍 → (sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ (inf(ran (𝑗𝑍 ↦ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < )), ℝ*, < ) +𝑒 (𝑋 / 2)) → ∀𝑘 ∈ (ℤ𝑗)((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹))))
861, 85reximdai 3114 . . 3 (𝜑 → (∃𝑗𝑍 sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < ) ≤ (inf(ran (𝑗𝑍 ↦ sup(ran (𝐹 ↾ (ℤ𝑗)), ℝ*, < )), ℝ*, < ) +𝑒 (𝑋 / 2)) → ∃𝑗𝑍𝑘 ∈ (ℤ𝑗)((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹)))
8753, 86mpd 15 . 2 (𝜑 → ∃𝑗𝑍𝑘 ∈ (ℤ𝑗)((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹))
88 simpll 807 . . . . 5 (((𝜑𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) → 𝜑)
897ffvelrnda 6474 . . . . . . . . 9 ((𝜑𝑘𝑍) → (𝐹𝑘) ∈ ℝ)
9067adantr 472 . . . . . . . . 9 ((𝜑𝑘𝑍) → 𝑋 ∈ ℝ)
9189, 90resubcld 10571 . . . . . . . 8 ((𝜑𝑘𝑍) → ((𝐹𝑘) − 𝑋) ∈ ℝ)
9291adantr 472 . . . . . . 7 (((𝜑𝑘𝑍) ∧ ((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹)) → ((𝐹𝑘) − 𝑋) ∈ ℝ)
9368adantr 472 . . . . . . . . 9 ((𝜑𝑘𝑍) → (𝑋 / 2) ∈ ℝ)
9489, 93resubcld 10571 . . . . . . . 8 ((𝜑𝑘𝑍) → ((𝐹𝑘) − (𝑋 / 2)) ∈ ℝ)
9594adantr 472 . . . . . . 7 (((𝜑𝑘𝑍) ∧ ((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹)) → ((𝐹𝑘) − (𝑋 / 2)) ∈ ℝ)
9613ad2antrr 764 . . . . . . 7 (((𝜑𝑘𝑍) ∧ ((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹)) → (lim sup‘𝐹) ∈ ℝ)
9751rphalfltd 40099 . . . . . . . . . 10 (𝜑 → (𝑋 / 2) < 𝑋)
9897adantr 472 . . . . . . . . 9 ((𝜑𝑘𝑍) → (𝑋 / 2) < 𝑋)
9993, 90, 89, 98ltsub2dd 10753 . . . . . . . 8 ((𝜑𝑘𝑍) → ((𝐹𝑘) − 𝑋) < ((𝐹𝑘) − (𝑋 / 2)))
10099adantr 472 . . . . . . 7 (((𝜑𝑘𝑍) ∧ ((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹)) → ((𝐹𝑘) − 𝑋) < ((𝐹𝑘) − (𝑋 / 2)))
101 simpr 479 . . . . . . 7 (((𝜑𝑘𝑍) ∧ ((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹)) → ((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹))
10292, 95, 96, 100, 101ltletrd 10310 . . . . . 6 (((𝜑𝑘𝑍) ∧ ((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹)) → ((𝐹𝑘) − 𝑋) < (lim sup‘𝐹))
103102ex 449 . . . . 5 ((𝜑𝑘𝑍) → (((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹) → ((𝐹𝑘) − 𝑋) < (lim sup‘𝐹)))
10488, 22, 103syl2anc 696 . . . 4 (((𝜑𝑗𝑍) ∧ 𝑘 ∈ (ℤ𝑗)) → (((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹) → ((𝐹𝑘) − 𝑋) < (lim sup‘𝐹)))
105104ralimdva 3064 . . 3 ((𝜑𝑗𝑍) → (∀𝑘 ∈ (ℤ𝑗)((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹) → ∀𝑘 ∈ (ℤ𝑗)((𝐹𝑘) − 𝑋) < (lim sup‘𝐹)))
106105reximdva 3119 . 2 (𝜑 → (∃𝑗𝑍𝑘 ∈ (ℤ𝑗)((𝐹𝑘) − (𝑋 / 2)) ≤ (lim sup‘𝐹) → ∃𝑗𝑍𝑘 ∈ (ℤ𝑗)((𝐹𝑘) − 𝑋) < (lim sup‘𝐹)))
10787, 106mpd 15 1 (𝜑 → ∃𝑗𝑍𝑘 ∈ (ℤ𝑗)((𝐹𝑘) − 𝑋) < (lim sup‘𝐹))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 196  wa 383  w3a 1072   = wceq 1596  wcel 2103  wral 3014  wrex 3015  Vcvv 3304  wss 3680   class class class wbr 4760  cmpt 4837  ran crn 5219  cres 5220   Fn wfn 5996  wf 5997  cfv 6001  (class class class)co 6765  supcsup 8462  infcinf 8463  cr 10048   + caddc 10052  *cxr 10186   < clt 10187  cle 10188  cmin 10379   / cdiv 10797  2c2 11183  cz 11490  cuz 11800  +crp 11946   +𝑒 cxad 12058  lim supclsp 14321
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1835  ax-4 1850  ax-5 1952  ax-6 2018  ax-7 2054  ax-8 2105  ax-9 2112  ax-10 2132  ax-11 2147  ax-12 2160  ax-13 2355  ax-ext 2704  ax-rep 4879  ax-sep 4889  ax-nul 4897  ax-pow 4948  ax-pr 5011  ax-un 7066  ax-cnex 10105  ax-resscn 10106  ax-1cn 10107  ax-icn 10108  ax-addcl 10109  ax-addrcl 10110  ax-mulcl 10111  ax-mulrcl 10112  ax-mulcom 10113  ax-addass 10114  ax-mulass 10115  ax-distr 10116  ax-i2m1 10117  ax-1ne0 10118  ax-1rid 10119  ax-rnegex 10120  ax-rrecex 10121  ax-cnre 10122  ax-pre-lttri 10123  ax-pre-lttrn 10124  ax-pre-ltadd 10125  ax-pre-mulgt0 10126  ax-pre-sup 10127
This theorem depends on definitions:  df-bi 197  df-or 384  df-an 385  df-3or 1073  df-3an 1074  df-tru 1599  df-ex 1818  df-nf 1823  df-sb 2011  df-eu 2575  df-mo 2576  df-clab 2711  df-cleq 2717  df-clel 2720  df-nfc 2855  df-ne 2897  df-nel 3000  df-ral 3019  df-rex 3020  df-reu 3021  df-rmo 3022  df-rab 3023  df-v 3306  df-sbc 3542  df-csb 3640  df-dif 3683  df-un 3685  df-in 3687  df-ss 3694  df-pss 3696  df-nul 4024  df-if 4195  df-pw 4268  df-sn 4286  df-pr 4288  df-tp 4290  df-op 4292  df-uni 4545  df-int 4584  df-iun 4630  df-br 4761  df-opab 4821  df-mpt 4838  df-tr 4861  df-id 5128  df-eprel 5133  df-po 5139  df-so 5140  df-fr 5177  df-we 5179  df-xp 5224  df-rel 5225  df-cnv 5226  df-co 5227  df-dm 5228  df-rn 5229  df-res 5230  df-ima 5231  df-pred 5793  df-ord 5839  df-on 5840  df-lim 5841  df-suc 5842  df-iota 5964  df-fun 6003  df-fn 6004  df-f 6005  df-f1 6006  df-fo 6007  df-f1o 6008  df-fv 6009  df-riota 6726  df-ov 6768  df-oprab 6769  df-mpt2 6770  df-om 7183  df-1st 7285  df-2nd 7286  df-wrecs 7527  df-recs 7588  df-rdg 7626  df-1o 7680  df-oadd 7684  df-er 7862  df-en 8073  df-dom 8074  df-sdom 8075  df-fin 8076  df-sup 8464  df-inf 8465  df-pnf 10189  df-mnf 10190  df-xr 10191  df-ltxr 10192  df-le 10193  df-sub 10381  df-neg 10382  df-div 10798  df-nn 11134  df-2 11192  df-n0 11406  df-z 11491  df-uz 11801  df-rp 11947  df-xadd 12061  df-ico 12295  df-fz 12441  df-fzo 12581  df-fl 12708  df-ceil 12709  df-limsup 14322
This theorem is referenced by:  limsupgt  40430
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