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Theorem smflimsuplem1 47923
Description: If 𝐻 converges, the lim sup of 𝐹 is real. (Contributed by Glauco Siliprandi, 23-Oct-2021.)
Hypotheses
Ref Expression
smflimsuplem1.z 𝑍 = (ℤ≥‘𝑀)
smflimsuplem1.e 𝐸 = (𝑛 ∈ 𝑍 ↦ {𝑥 ∈ ∩ 𝑚 ∈ (ℤ≥‘𝑛)dom (𝐹‘𝑚) ∣ sup(ran (𝑚 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑚)‘𝑥)), ℝ*, < ) ∈ ℝ})
smflimsuplem1.h 𝐻 = (𝑛 ∈ 𝑍 ↦ (𝑥 ∈ (𝐸‘𝑛) ↦ sup(ran (𝑚 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑚)‘𝑥)), ℝ*, < )))
smflimsuplem1.k (𝜑 → 𝐾 ∈ 𝑍)
Assertion
Ref Expression
smflimsuplem1 (𝜑 → dom (𝐻‘𝐾) ⊆ dom (𝐹‘𝐾))
Distinct variable groups:   𝑛,𝐸,𝑥   𝑚,𝐹,𝑛,𝑥   𝑛,𝐾,𝑥   𝑛,𝑍
Allowed substitution hints:   𝜑(𝑥, 𝑚, 𝑛)   𝐸(𝑚)   𝐻(𝑥, 𝑚, 𝑛)   𝐾(𝑚)   𝑀(𝑥, 𝑚, 𝑛)   𝑍(𝑥, 𝑚)

Proof of Theorem smflimsuplem1
Dummy variable 𝑗 is distinct from all other variables.
StepHypRef Expression
1 smflimsuplem1.h . . . . 5 𝐻 = (𝑛 ∈ 𝑍 ↦ (𝑥 ∈ (𝐸‘𝑛) ↦ sup(ran (𝑚 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑚)‘𝑥)), ℝ*, < )))
2 fveq2 6885 . . . . . . . . . . . 12 (𝑚 = 𝑗 → (𝐹‘𝑚) = (𝐹‘𝑗))
32fveq1d 6887 . . . . . . . . . . 11 (𝑚 = 𝑗 → ((𝐹‘𝑚)‘𝑥) = ((𝐹‘𝑗)‘𝑥))
43cbvmptv 5208 . . . . . . . . . 10 (𝑚 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑚)‘𝑥)) = (𝑗 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑗)‘𝑥))
54rneqi 5918 . . . . . . . . 9 ran (𝑚 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑚)‘𝑥)) = ran (𝑗 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑗)‘𝑥))
65supeq1i 9442 . . . . . . . 8 sup(ran (𝑚 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑚)‘𝑥)), ℝ*, < ) = sup(ran (𝑗 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < )
76mpteq2i 5200 . . . . . . 7 (𝑥 ∈ (𝐸‘𝑛) ↦ sup(ran (𝑚 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑚)‘𝑥)), ℝ*, < )) = (𝑥 ∈ (𝐸‘𝑛) ↦ sup(ran (𝑗 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ))
87a1i 11 . . . . . 6 (𝑛 = 𝐾 → (𝑥 ∈ (𝐸‘𝑛) ↦ sup(ran (𝑚 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑚)‘𝑥)), ℝ*, < )) = (𝑥 ∈ (𝐸‘𝑛) ↦ sup(ran (𝑗 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < )))
9 fveq2 6885 . . . . . . 7 (𝑛 = 𝐾 → (𝐸‘𝑛) = (𝐸‘𝐾))
10 fveq2 6885 . . . . . . . . . 10 (𝑛 = 𝐾 → (ℤ≥‘𝑛) = (ℤ≥‘𝐾))
1110mpteq1d 5194 . . . . . . . . 9 (𝑛 = 𝐾 → (𝑗 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑗)‘𝑥)) = (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)))
1211rneqd 5919 . . . . . . . 8 (𝑛 = 𝐾 → ran (𝑗 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑗)‘𝑥)) = ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)))
1312supeq1d 9441 . . . . . . 7 (𝑛 = 𝐾 → sup(ran (𝑗 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) = sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ))
149, 13mpteq12dv 5191 . . . . . 6 (𝑛 = 𝐾 → (𝑥 ∈ (𝐸‘𝑛) ↦ sup(ran (𝑗 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < )) = (𝑥 ∈ (𝐸‘𝐾) ↦ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < )))
158, 14eqtrd 2795 . . . . 5 (𝑛 = 𝐾 → (𝑥 ∈ (𝐸‘𝑛) ↦ sup(ran (𝑚 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑚)‘𝑥)), ℝ*, < )) = (𝑥 ∈ (𝐸‘𝐾) ↦ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < )))
16 smflimsuplem1.k . . . . 5 (𝜑 → 𝐾 ∈ 𝑍)
17 fvex 6898 . . . . . . 7 (𝐸‘𝐾) ∈ V
1817mptex 7229 . . . . . 6 (𝑥 ∈ (𝐸‘𝐾) ↦ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < )) ∈ V
1918a1i 11 . . . . 5 (𝜑 → (𝑥 ∈ (𝐸‘𝐾) ↦ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < )) ∈ V)
201, 15, 16, 19fvmptd3 7017 . . . 4 (𝜑 → (𝐻‘𝐾) = (𝑥 ∈ (𝐸‘𝐾) ↦ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < )))
2120dmeqd 5886 . . 3 (𝜑 → dom (𝐻‘𝐾) = dom (𝑥 ∈ (𝐸‘𝐾) ↦ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < )))
22 xrltso 13273 . . . . . 6 < Or ℝ*
2322supex 9459 . . . . 5 sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ V
24 eqid 2760 . . . . 5 (𝑥 ∈ (𝐸‘𝐾) ↦ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < )) = (𝑥 ∈ (𝐸‘𝐾) ↦ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ))
2523, 24dmmpti 6683 . . . 4 dom (𝑥 ∈ (𝐸‘𝐾) ↦ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < )) = (𝐸‘𝐾)
2625a1i 11 . . 3 (𝜑 → dom (𝑥 ∈ (𝐸‘𝐾) ↦ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < )) = (𝐸‘𝐾))
27 smflimsuplem1.e . . . 4 𝐸 = (𝑛 ∈ 𝑍 ↦ {𝑥 ∈ ∩ 𝑚 ∈ (ℤ≥‘𝑛)dom (𝐹‘𝑚) ∣ sup(ran (𝑚 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑚)‘𝑥)), ℝ*, < ) ∈ ℝ})
282dmeqd 5886 . . . . . . . . . 10 (𝑚 = 𝑗 → dom (𝐹‘𝑚) = dom (𝐹‘𝑗))
2928cbviinv 4997 . . . . . . . . 9 ∩ 𝑚 ∈ (ℤ≥‘𝑛)dom (𝐹‘𝑚) = ∩ 𝑗 ∈ (ℤ≥‘𝑛)dom (𝐹‘𝑗)
3029eleq2i 2852 . . . . . . . 8 (𝑥 ∈ ∩ 𝑚 ∈ (ℤ≥‘𝑛)dom (𝐹‘𝑚) ↔ 𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝑛)dom (𝐹‘𝑗))
316eleq1i 2851 . . . . . . . 8 (sup(ran (𝑚 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑚)‘𝑥)), ℝ*, < ) ∈ ℝ ↔ sup(ran (𝑗 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ)
3230, 31anbi12i 640 . . . . . . 7 ((𝑥 ∈ ∩ 𝑚 ∈ (ℤ≥‘𝑛)dom (𝐹‘𝑚) ∧ sup(ran (𝑚 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑚)‘𝑥)), ℝ*, < ) ∈ ℝ) ↔ (𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝑛)dom (𝐹‘𝑗) ∧ sup(ran (𝑗 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ))
3332rabbia2 3415 . . . . . 6 {𝑥 ∈ ∩ 𝑚 ∈ (ℤ≥‘𝑛)dom (𝐹‘𝑚) ∣ sup(ran (𝑚 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑚)‘𝑥)), ℝ*, < ) ∈ ℝ} = {𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝑛)dom (𝐹‘𝑗) ∣ sup(ran (𝑗 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ}
3433a1i 11 . . . . 5 (𝑛 = 𝐾 → {𝑥 ∈ ∩ 𝑚 ∈ (ℤ≥‘𝑛)dom (𝐹‘𝑚) ∣ sup(ran (𝑚 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑚)‘𝑥)), ℝ*, < ) ∈ ℝ} = {𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝑛)dom (𝐹‘𝑗) ∣ sup(ran (𝑗 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ})
3510iineq1d 46198 . . . . . . . 8 (𝑛 = 𝐾 → ∩ 𝑗 ∈ (ℤ≥‘𝑛)dom (𝐹‘𝑗) = ∩ 𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗))
3635eleq2d 2846 . . . . . . 7 (𝑛 = 𝐾 → (𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝑛)dom (𝐹‘𝑗) ↔ 𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗)))
3713eleq1d 2845 . . . . . . 7 (𝑛 = 𝐾 → (sup(ran (𝑗 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ ↔ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ))
3836, 37anbi12d 644 . . . . . 6 (𝑛 = 𝐾 → ((𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝑛)dom (𝐹‘𝑗) ∧ sup(ran (𝑗 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ) ↔ (𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗) ∧ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ)))
3938rabbidva2 3414 . . . . 5 (𝑛 = 𝐾 → {𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝑛)dom (𝐹‘𝑗) ∣ sup(ran (𝑗 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ} = {𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗) ∣ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ})
4034, 39eqtrd 2795 . . . 4 (𝑛 = 𝐾 → {𝑥 ∈ ∩ 𝑚 ∈ (ℤ≥‘𝑛)dom (𝐹‘𝑚) ∣ sup(ran (𝑚 ∈ (ℤ≥‘𝑛) ↦ ((𝐹‘𝑚)‘𝑥)), ℝ*, < ) ∈ ℝ} = {𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗) ∣ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ})
41 eqid 2760 . . . . 5 {𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗) ∣ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ} = {𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗) ∣ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ}
42 smflimsuplem1.z . . . . . . . 8 𝑍 = (ℤ≥‘𝑀)
4342, 16eluzelz2d 46516 . . . . . . 7 (𝜑 → 𝐾 ∈ ℤ)
44 uzid 12983 . . . . . . 7 (𝐾 ∈ ℤ → 𝐾 ∈ (ℤ≥‘𝐾))
45 ne0i 4286 . . . . . . 7 (𝐾 ∈ (ℤ≥‘𝐾) → (ℤ≥‘𝐾) ≠ ∅)
4643, 44, 453syl 19 . . . . . 6 (𝜑 → (ℤ≥‘𝐾) ≠ ∅)
47 fvex 6898 . . . . . . . . 9 (𝐹‘𝑗) ∈ V
4847dmex 7921 . . . . . . . 8 dom (𝐹‘𝑗) ∈ V
4948rgenw 3080 . . . . . . 7 ∀𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗) ∈ V
5049a1i 11 . . . . . 6 (𝜑 → ∀𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗) ∈ V)
5146, 50iinexd 46241 . . . . 5 (𝜑 → ∩ 𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗) ∈ V)
5241, 51rabexd 5300 . . . 4 (𝜑 → {𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗) ∣ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ} ∈ V)
5327, 40, 16, 52fvmptd3 7017 . . 3 (𝜑 → (𝐸‘𝐾) = {𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗) ∣ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ})
5421, 26, 533eqtrd 2799 . 2 (𝜑 → dom (𝐻‘𝐾) = {𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗) ∣ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ})
55 ssrab2 4005 . . . 4 {𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗) ∣ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ} ⊆ ∩ 𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗)
5655a1i 11 . . 3 (𝜑 → {𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗) ∣ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ} ⊆ ∩ 𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗))
5743, 44syl 18 . . . 4 (𝜑 → 𝐾 ∈ (ℤ≥‘𝐾))
58 fveq2 6885 . . . . 5 (𝑗 = 𝐾 → (𝐹‘𝑗) = (𝐹‘𝐾))
5958dmeqd 5886 . . . 4 (𝑗 = 𝐾 → dom (𝐹‘𝑗) = dom (𝐹‘𝐾))
60 ssid 3930 . . . . 5 dom (𝐹‘𝐾) ⊆ dom (𝐹‘𝐾)
6160a1i 11 . . . 4 (𝜑 → dom (𝐹‘𝐾) ⊆ dom (𝐹‘𝐾))
6257, 59, 61iinssd 46239 . . 3 (𝜑 → ∩ 𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗) ⊆ dom (𝐹‘𝐾))
6356, 62sstrd 3918 . 2 (𝜑 → {𝑥 ∈ ∩ 𝑗 ∈ (ℤ≥‘𝐾)dom (𝐹‘𝑗) ∣ sup(ran (𝑗 ∈ (ℤ≥‘𝐾) ↦ ((𝐹‘𝑗)‘𝑥)), ℝ*, < ) ∈ ℝ} ⊆ dom (𝐹‘𝐾))
6454, 63eqsstrd 3942 1 (𝜑 → dom (𝐻‘𝐾) ⊆ dom (𝐹‘𝐾))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   = wceq 1569   ∈ wcel 2144   ≠ wne 2955  ∀wral 3076  {crab 3412  Vcvv 3450   ⊆ wss 3895  ∅c0 4278  ∩ ciin 4951   ↦ cmpt 5185  dom cdm 5650  ran crn 5651  ‘cfv 6538  supcsup 9435  ℝcr 11202  ℝ*cxr 11345   < clt 11346  ℤcz 12696  ℤ≥cuz 12968
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1827  ax-4 1841  ax-5 1942  ax-6 1999  ax-7 2040  ax-8 2146  ax-9 2154  ax-10 2177  ax-11 2193  ax-12 2212  ax-ext 2732  ax-rep 5231  ax-sep 5248  ax-nul 5259  ax-pow 5326  ax-pr 5390  ax-un 7751  ax-cnex 11259  ax-resscn 11260  ax-pre-lttri 11277  ax-pre-lttrn 11278
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3or 1104  df-3an 1105  df-tru 1572  df-fal 1582  df-ex 1812  df-nf 1816  df-sb 2099  df-mo 2564  df-eu 2594  df-clab 2739  df-cleq 2752  df-clel 2835  df-nfc 2909  df-ne 2956  df-nel 3062  df-ral 3077  df-rex 3087  df-rmo 3365  df-reu 3366  df-rab 3413  df-v 3452  df-sbc 3739  df-csb 3847  df-ss 3896  df-dif 4047  df-in 4091  df-un 4151  df-nul 4279  df-if 4482  df-pw 4558  df-sn 4585  df-pr 4587  df-op 4835  df-uni 4867  df-int 4907  df-iun 4952  df-iin 4953  df-br 5103  df-opab 5167  df-mpt 5186  df-id 5545  df-po 5558  df-so 5559  df-xp 5656  df-rel 5657  df-cnv 5658  df-co 5659  df-dm 5660  df-rn 5661  df-res 5662  df-ima 5663  df-iota 6494  df-fun 6540  df-fn 6541  df-f 6542  df-f1 6543  df-fo 6544  df-f1o 6545  df-fv 6546  df-ov 7423  df-er 8720  df-en 8977  df-dom 8978  df-sdom 8979  df-sup 9437  df-pnf 11348  df-mnf 11349  df-xr 11350  df-ltxr 11351  df-le 11352  df-neg 11547  df-z 12697  df-uz 12969
This theorem is used by:  smflimsuplem4  47926
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