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Theorem sge0reuz 42592
Description: Value of the generalized sum of nonnegative reals, when the domain is a set of upper integers. (Contributed by Glauco Siliprandi, 8-Apr-2021.)
Hypotheses
Ref Expression
sge0reuz.k 𝑘𝜑
sge0reuz.m (𝜑𝑀 ∈ ℤ)
sge0reuz.z 𝑍 = (ℤ𝑀)
sge0reuz.b ((𝜑𝑘𝑍) → 𝐵 ∈ (0[,)+∞))
Assertion
Ref Expression
sge0reuz (𝜑 → (Σ^‘(𝑘𝑍𝐵)) = sup(ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵), ℝ*, < ))
Distinct variable groups:   𝐵,𝑛   𝑘,𝑀,𝑛   𝑘,𝑍,𝑛   𝜑,𝑛
Allowed substitution hints:   𝜑(𝑘)   𝐵(𝑘)

Proof of Theorem sge0reuz
Dummy variables 𝑤 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 sge0reuz.k . . 3 𝑘𝜑
2 sge0reuz.z . . . . 5 𝑍 = (ℤ𝑀)
32a1i 11 . . . 4 (𝜑𝑍 = (ℤ𝑀))
4 fvex 6679 . . . 4 (ℤ𝑀) ∈ V
53, 4syl6eqel 2925 . . 3 (𝜑𝑍 ∈ V)
6 sge0reuz.b . . 3 ((𝜑𝑘𝑍) → 𝐵 ∈ (0[,)+∞))
71, 5, 6sge0revalmpt 42523 . 2 (𝜑 → (Σ^‘(𝑘𝑍𝐵)) = sup(ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵), ℝ*, < ))
8 nfv 1908 . . . . 5 𝑥𝜑
9 eqid 2824 . . . . 5 (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵) = (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵)
10 nfv 1908 . . . . . . . 8 𝑘 𝑥 ∈ (𝒫 𝑍 ∩ Fin)
111, 10nfan 1893 . . . . . . 7 𝑘(𝜑𝑥 ∈ (𝒫 𝑍 ∩ Fin))
12 elinel2 4176 . . . . . . . 8 (𝑥 ∈ (𝒫 𝑍 ∩ Fin) → 𝑥 ∈ Fin)
1312adantl 482 . . . . . . 7 ((𝜑𝑥 ∈ (𝒫 𝑍 ∩ Fin)) → 𝑥 ∈ Fin)
14 rge0ssre 12837 . . . . . . . 8 (0[,)+∞) ⊆ ℝ
15 simpll 763 . . . . . . . . 9 (((𝜑𝑥 ∈ (𝒫 𝑍 ∩ Fin)) ∧ 𝑘𝑥) → 𝜑)
16 elpwinss 41173 . . . . . . . . . . . 12 (𝑥 ∈ (𝒫 𝑍 ∩ Fin) → 𝑥𝑍)
1716adantr 481 . . . . . . . . . . 11 ((𝑥 ∈ (𝒫 𝑍 ∩ Fin) ∧ 𝑘𝑥) → 𝑥𝑍)
18 simpr 485 . . . . . . . . . . 11 ((𝑥 ∈ (𝒫 𝑍 ∩ Fin) ∧ 𝑘𝑥) → 𝑘𝑥)
1917, 18sseldd 3971 . . . . . . . . . 10 ((𝑥 ∈ (𝒫 𝑍 ∩ Fin) ∧ 𝑘𝑥) → 𝑘𝑍)
2019adantll 710 . . . . . . . . 9 (((𝜑𝑥 ∈ (𝒫 𝑍 ∩ Fin)) ∧ 𝑘𝑥) → 𝑘𝑍)
2115, 20, 6syl2anc 584 . . . . . . . 8 (((𝜑𝑥 ∈ (𝒫 𝑍 ∩ Fin)) ∧ 𝑘𝑥) → 𝐵 ∈ (0[,)+∞))
2214, 21sseldi 3968 . . . . . . 7 (((𝜑𝑥 ∈ (𝒫 𝑍 ∩ Fin)) ∧ 𝑘𝑥) → 𝐵 ∈ ℝ)
2311, 13, 22fsumreclf 41719 . . . . . 6 ((𝜑𝑥 ∈ (𝒫 𝑍 ∩ Fin)) → Σ𝑘𝑥 𝐵 ∈ ℝ)
2423rexrd 10683 . . . . 5 ((𝜑𝑥 ∈ (𝒫 𝑍 ∩ Fin)) → Σ𝑘𝑥 𝐵 ∈ ℝ*)
258, 9, 24rnmptssd 41320 . . . 4 (𝜑 → ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵) ⊆ ℝ*)
26 supxrcl 12701 . . . 4 (ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵) ⊆ ℝ* → sup(ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵), ℝ*, < ) ∈ ℝ*)
2725, 26syl 17 . . 3 (𝜑 → sup(ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵), ℝ*, < ) ∈ ℝ*)
28 nfv 1908 . . . . 5 𝑛𝜑
29 eqid 2824 . . . . 5 (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵) = (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)
30 nfv 1908 . . . . . . . 8 𝑘 𝑛𝑍
311, 30nfan 1893 . . . . . . 7 𝑘(𝜑𝑛𝑍)
32 fzfid 13334 . . . . . . 7 ((𝜑𝑛𝑍) → (𝑀...𝑛) ∈ Fin)
33 elfzuz 12897 . . . . . . . . . . 11 (𝑘 ∈ (𝑀...𝑛) → 𝑘 ∈ (ℤ𝑀))
3433, 2syl6eleqr 2928 . . . . . . . . . 10 (𝑘 ∈ (𝑀...𝑛) → 𝑘𝑍)
3534adantl 482 . . . . . . . . 9 ((𝜑𝑘 ∈ (𝑀...𝑛)) → 𝑘𝑍)
3614, 6sseldi 3968 . . . . . . . . 9 ((𝜑𝑘𝑍) → 𝐵 ∈ ℝ)
3735, 36syldan 591 . . . . . . . 8 ((𝜑𝑘 ∈ (𝑀...𝑛)) → 𝐵 ∈ ℝ)
3837adantlr 711 . . . . . . 7 (((𝜑𝑛𝑍) ∧ 𝑘 ∈ (𝑀...𝑛)) → 𝐵 ∈ ℝ)
3931, 32, 38fsumreclf 41719 . . . . . 6 ((𝜑𝑛𝑍) → Σ𝑘 ∈ (𝑀...𝑛)𝐵 ∈ ℝ)
4039rexrd 10683 . . . . 5 ((𝜑𝑛𝑍) → Σ𝑘 ∈ (𝑀...𝑛)𝐵 ∈ ℝ*)
4128, 29, 40rnmptssd 41320 . . . 4 (𝜑 → ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵) ⊆ ℝ*)
42 supxrcl 12701 . . . 4 (ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵) ⊆ ℝ* → sup(ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵), ℝ*, < ) ∈ ℝ*)
4341, 42syl 17 . . 3 (𝜑 → sup(ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵), ℝ*, < ) ∈ ℝ*)
44 vex 3502 . . . . . . . 8 𝑦 ∈ V
459elrnmpt 5826 . . . . . . . 8 (𝑦 ∈ V → (𝑦 ∈ ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵) ↔ ∃𝑥 ∈ (𝒫 𝑍 ∩ Fin)𝑦 = Σ𝑘𝑥 𝐵))
4644, 45ax-mp 5 . . . . . . 7 (𝑦 ∈ ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵) ↔ ∃𝑥 ∈ (𝒫 𝑍 ∩ Fin)𝑦 = Σ𝑘𝑥 𝐵)
4746biimpi 217 . . . . . 6 (𝑦 ∈ ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵) → ∃𝑥 ∈ (𝒫 𝑍 ∩ Fin)𝑦 = Σ𝑘𝑥 𝐵)
4847adantl 482 . . . . 5 ((𝜑𝑦 ∈ ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵)) → ∃𝑥 ∈ (𝒫 𝑍 ∩ Fin)𝑦 = Σ𝑘𝑥 𝐵)
49 sge0reuz.m . . . . . . . . . . 11 (𝜑𝑀 ∈ ℤ)
50493ad2ant1 1127 . . . . . . . . . 10 ((𝜑𝑥 ∈ (𝒫 𝑍 ∩ Fin) ∧ 𝑦 = Σ𝑘𝑥 𝐵) → 𝑀 ∈ ℤ)
51163ad2ant2 1128 . . . . . . . . . 10 ((𝜑𝑥 ∈ (𝒫 𝑍 ∩ Fin) ∧ 𝑦 = Σ𝑘𝑥 𝐵) → 𝑥𝑍)
52133adant3 1126 . . . . . . . . . 10 ((𝜑𝑥 ∈ (𝒫 𝑍 ∩ Fin) ∧ 𝑦 = Σ𝑘𝑥 𝐵) → 𝑥 ∈ Fin)
5350, 2, 51, 52uzfissfz 41456 . . . . . . . . 9 ((𝜑𝑥 ∈ (𝒫 𝑍 ∩ Fin) ∧ 𝑦 = Σ𝑘𝑥 𝐵) → ∃𝑛𝑍 𝑥 ⊆ (𝑀...𝑛))
54 nfv 1908 . . . . . . . . . 10 𝑛(𝜑𝑥 ∈ (𝒫 𝑍 ∩ Fin) ∧ 𝑦 = Σ𝑘𝑥 𝐵)
55 nfmpt1 5160 . . . . . . . . . . . 12 𝑛(𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)
5655nfrn 5822 . . . . . . . . . . 11 𝑛ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)
57 nfv 1908 . . . . . . . . . . 11 𝑛 𝑦𝑤
5856, 57nfrex 3313 . . . . . . . . . 10 𝑛𝑤 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)𝑦𝑤
59 id 22 . . . . . . . . . . . . . . 15 (𝑛𝑍𝑛𝑍)
60 sumex 15037 . . . . . . . . . . . . . . . 16 Σ𝑘 ∈ (𝑀...𝑛)𝐵 ∈ V
6160a1i 11 . . . . . . . . . . . . . . 15 (𝑛𝑍 → Σ𝑘 ∈ (𝑀...𝑛)𝐵 ∈ V)
6229elrnmpt1 5828 . . . . . . . . . . . . . . 15 ((𝑛𝑍 ∧ Σ𝑘 ∈ (𝑀...𝑛)𝐵 ∈ V) → Σ𝑘 ∈ (𝑀...𝑛)𝐵 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵))
6359, 61, 62syl2anc 584 . . . . . . . . . . . . . 14 (𝑛𝑍 → Σ𝑘 ∈ (𝑀...𝑛)𝐵 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵))
64633ad2ant2 1128 . . . . . . . . . . . . 13 (((𝜑𝑦 = Σ𝑘𝑥 𝐵) ∧ 𝑛𝑍𝑥 ⊆ (𝑀...𝑛)) → Σ𝑘 ∈ (𝑀...𝑛)𝐵 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵))
65 simplr 765 . . . . . . . . . . . . . . 15 (((𝜑𝑦 = Σ𝑘𝑥 𝐵) ∧ 𝑥 ⊆ (𝑀...𝑛)) → 𝑦 = Σ𝑘𝑥 𝐵)
66 nfcv 2981 . . . . . . . . . . . . . . . . . . 19 𝑘𝑦
67 nfcv 2981 . . . . . . . . . . . . . . . . . . . 20 𝑘𝑥
6867nfsum1 15039 . . . . . . . . . . . . . . . . . . 19 𝑘Σ𝑘𝑥 𝐵
6966, 68nfeq 2995 . . . . . . . . . . . . . . . . . 18 𝑘 𝑦 = Σ𝑘𝑥 𝐵
701, 69nfan 1893 . . . . . . . . . . . . . . . . 17 𝑘(𝜑𝑦 = Σ𝑘𝑥 𝐵)
71 nfv 1908 . . . . . . . . . . . . . . . . 17 𝑘 𝑥 ⊆ (𝑀...𝑛)
7270, 71nfan 1893 . . . . . . . . . . . . . . . 16 𝑘((𝜑𝑦 = Σ𝑘𝑥 𝐵) ∧ 𝑥 ⊆ (𝑀...𝑛))
73 fzfid 13334 . . . . . . . . . . . . . . . 16 (((𝜑𝑦 = Σ𝑘𝑥 𝐵) ∧ 𝑥 ⊆ (𝑀...𝑛)) → (𝑀...𝑛) ∈ Fin)
7437ad4ant14 748 . . . . . . . . . . . . . . . 16 ((((𝜑𝑦 = Σ𝑘𝑥 𝐵) ∧ 𝑥 ⊆ (𝑀...𝑛)) ∧ 𝑘 ∈ (𝑀...𝑛)) → 𝐵 ∈ ℝ)
75 simplll 771 . . . . . . . . . . . . . . . . 17 ((((𝜑𝑦 = Σ𝑘𝑥 𝐵) ∧ 𝑥 ⊆ (𝑀...𝑛)) ∧ 𝑘 ∈ (𝑀...𝑛)) → 𝜑)
7634adantl 482 . . . . . . . . . . . . . . . . 17 ((((𝜑𝑦 = Σ𝑘𝑥 𝐵) ∧ 𝑥 ⊆ (𝑀...𝑛)) ∧ 𝑘 ∈ (𝑀...𝑛)) → 𝑘𝑍)
77 0xr 10680 . . . . . . . . . . . . . . . . . . 19 0 ∈ ℝ*
7877a1i 11 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑘𝑍) → 0 ∈ ℝ*)
79 pnfxr 10687 . . . . . . . . . . . . . . . . . . 19 +∞ ∈ ℝ*
8079a1i 11 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑘𝑍) → +∞ ∈ ℝ*)
81 icogelb 12781 . . . . . . . . . . . . . . . . . 18 ((0 ∈ ℝ* ∧ +∞ ∈ ℝ*𝐵 ∈ (0[,)+∞)) → 0 ≤ 𝐵)
8278, 80, 6, 81syl3anc 1365 . . . . . . . . . . . . . . . . 17 ((𝜑𝑘𝑍) → 0 ≤ 𝐵)
8375, 76, 82syl2anc 584 . . . . . . . . . . . . . . . 16 ((((𝜑𝑦 = Σ𝑘𝑥 𝐵) ∧ 𝑥 ⊆ (𝑀...𝑛)) ∧ 𝑘 ∈ (𝑀...𝑛)) → 0 ≤ 𝐵)
84 simpr 485 . . . . . . . . . . . . . . . 16 (((𝜑𝑦 = Σ𝑘𝑥 𝐵) ∧ 𝑥 ⊆ (𝑀...𝑛)) → 𝑥 ⊆ (𝑀...𝑛))
8572, 73, 74, 83, 84fsumlessf 41720 . . . . . . . . . . . . . . 15 (((𝜑𝑦 = Σ𝑘𝑥 𝐵) ∧ 𝑥 ⊆ (𝑀...𝑛)) → Σ𝑘𝑥 𝐵 ≤ Σ𝑘 ∈ (𝑀...𝑛)𝐵)
8665, 85eqbrtrd 5084 . . . . . . . . . . . . . 14 (((𝜑𝑦 = Σ𝑘𝑥 𝐵) ∧ 𝑥 ⊆ (𝑀...𝑛)) → 𝑦 ≤ Σ𝑘 ∈ (𝑀...𝑛)𝐵)
87863adant2 1125 . . . . . . . . . . . . 13 (((𝜑𝑦 = Σ𝑘𝑥 𝐵) ∧ 𝑛𝑍𝑥 ⊆ (𝑀...𝑛)) → 𝑦 ≤ Σ𝑘 ∈ (𝑀...𝑛)𝐵)
88 breq2 5066 . . . . . . . . . . . . . 14 (𝑤 = Σ𝑘 ∈ (𝑀...𝑛)𝐵 → (𝑦𝑤𝑦 ≤ Σ𝑘 ∈ (𝑀...𝑛)𝐵))
8988rspcev 3626 . . . . . . . . . . . . 13 ((Σ𝑘 ∈ (𝑀...𝑛)𝐵 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵) ∧ 𝑦 ≤ Σ𝑘 ∈ (𝑀...𝑛)𝐵) → ∃𝑤 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)𝑦𝑤)
9064, 87, 89syl2anc 584 . . . . . . . . . . . 12 (((𝜑𝑦 = Σ𝑘𝑥 𝐵) ∧ 𝑛𝑍𝑥 ⊆ (𝑀...𝑛)) → ∃𝑤 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)𝑦𝑤)
91903exp 1113 . . . . . . . . . . 11 ((𝜑𝑦 = Σ𝑘𝑥 𝐵) → (𝑛𝑍 → (𝑥 ⊆ (𝑀...𝑛) → ∃𝑤 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)𝑦𝑤)))
92913adant2 1125 . . . . . . . . . 10 ((𝜑𝑥 ∈ (𝒫 𝑍 ∩ Fin) ∧ 𝑦 = Σ𝑘𝑥 𝐵) → (𝑛𝑍 → (𝑥 ⊆ (𝑀...𝑛) → ∃𝑤 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)𝑦𝑤)))
9354, 58, 92rexlimd 3321 . . . . . . . . 9 ((𝜑𝑥 ∈ (𝒫 𝑍 ∩ Fin) ∧ 𝑦 = Σ𝑘𝑥 𝐵) → (∃𝑛𝑍 𝑥 ⊆ (𝑀...𝑛) → ∃𝑤 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)𝑦𝑤))
9453, 93mpd 15 . . . . . . . 8 ((𝜑𝑥 ∈ (𝒫 𝑍 ∩ Fin) ∧ 𝑦 = Σ𝑘𝑥 𝐵) → ∃𝑤 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)𝑦𝑤)
95943exp 1113 . . . . . . 7 (𝜑 → (𝑥 ∈ (𝒫 𝑍 ∩ Fin) → (𝑦 = Σ𝑘𝑥 𝐵 → ∃𝑤 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)𝑦𝑤)))
9695rexlimdv 3287 . . . . . 6 (𝜑 → (∃𝑥 ∈ (𝒫 𝑍 ∩ Fin)𝑦 = Σ𝑘𝑥 𝐵 → ∃𝑤 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)𝑦𝑤))
9796imp 407 . . . . 5 ((𝜑 ∧ ∃𝑥 ∈ (𝒫 𝑍 ∩ Fin)𝑦 = Σ𝑘𝑥 𝐵) → ∃𝑤 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)𝑦𝑤)
9848, 97syldan 591 . . . 4 ((𝜑𝑦 ∈ ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵)) → ∃𝑤 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)𝑦𝑤)
9925, 41, 98suplesup2 41506 . . 3 (𝜑 → sup(ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵), ℝ*, < ) ≤ sup(ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵), ℝ*, < ))
10029elrnmpt 5826 . . . . . . . . . 10 (𝑦 ∈ V → (𝑦 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵) ↔ ∃𝑛𝑍 𝑦 = Σ𝑘 ∈ (𝑀...𝑛)𝐵))
10144, 100ax-mp 5 . . . . . . . . 9 (𝑦 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵) ↔ ∃𝑛𝑍 𝑦 = Σ𝑘 ∈ (𝑀...𝑛)𝐵)
102101biimpi 217 . . . . . . . 8 (𝑦 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵) → ∃𝑛𝑍 𝑦 = Σ𝑘 ∈ (𝑀...𝑛)𝐵)
103102adantl 482 . . . . . . 7 ((𝜑𝑦 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)) → ∃𝑛𝑍 𝑦 = Σ𝑘 ∈ (𝑀...𝑛)𝐵)
10434ssriv 3974 . . . . . . . . . . . . . . 15 (𝑀...𝑛) ⊆ 𝑍
105 ovex 7184 . . . . . . . . . . . . . . . 16 (𝑀...𝑛) ∈ V
106105elpw 4548 . . . . . . . . . . . . . . 15 ((𝑀...𝑛) ∈ 𝒫 𝑍 ↔ (𝑀...𝑛) ⊆ 𝑍)
107104, 106mpbir 232 . . . . . . . . . . . . . 14 (𝑀...𝑛) ∈ 𝒫 𝑍
108 fzfi 13333 . . . . . . . . . . . . . 14 (𝑀...𝑛) ∈ Fin
109107, 108elini 4173 . . . . . . . . . . . . 13 (𝑀...𝑛) ∈ (𝒫 𝑍 ∩ Fin)
110109a1i 11 . . . . . . . . . . . 12 (𝑦 = Σ𝑘 ∈ (𝑀...𝑛)𝐵 → (𝑀...𝑛) ∈ (𝒫 𝑍 ∩ Fin))
111 id 22 . . . . . . . . . . . 12 (𝑦 = Σ𝑘 ∈ (𝑀...𝑛)𝐵𝑦 = Σ𝑘 ∈ (𝑀...𝑛)𝐵)
112 sumeq1 15038 . . . . . . . . . . . . 13 (𝑥 = (𝑀...𝑛) → Σ𝑘𝑥 𝐵 = Σ𝑘 ∈ (𝑀...𝑛)𝐵)
113112rspceeqv 3641 . . . . . . . . . . . 12 (((𝑀...𝑛) ∈ (𝒫 𝑍 ∩ Fin) ∧ 𝑦 = Σ𝑘 ∈ (𝑀...𝑛)𝐵) → ∃𝑥 ∈ (𝒫 𝑍 ∩ Fin)𝑦 = Σ𝑘𝑥 𝐵)
114110, 111, 113syl2anc 584 . . . . . . . . . . 11 (𝑦 = Σ𝑘 ∈ (𝑀...𝑛)𝐵 → ∃𝑥 ∈ (𝒫 𝑍 ∩ Fin)𝑦 = Σ𝑘𝑥 𝐵)
11544a1i 11 . . . . . . . . . . 11 (𝑦 = Σ𝑘 ∈ (𝑀...𝑛)𝐵𝑦 ∈ V)
1169, 114, 115elrnmptd 41302 . . . . . . . . . 10 (𝑦 = Σ𝑘 ∈ (𝑀...𝑛)𝐵𝑦 ∈ ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵))
1171162a1i 12 . . . . . . . . 9 (𝜑 → (𝑛𝑍 → (𝑦 = Σ𝑘 ∈ (𝑀...𝑛)𝐵𝑦 ∈ ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵))))
118117rexlimdv 3287 . . . . . . . 8 (𝜑 → (∃𝑛𝑍 𝑦 = Σ𝑘 ∈ (𝑀...𝑛)𝐵𝑦 ∈ ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵)))
119118adantr 481 . . . . . . 7 ((𝜑𝑦 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)) → (∃𝑛𝑍 𝑦 = Σ𝑘 ∈ (𝑀...𝑛)𝐵𝑦 ∈ ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵)))
120103, 119mpd 15 . . . . . 6 ((𝜑𝑦 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)) → 𝑦 ∈ ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵))
121120ralrimiva 3186 . . . . 5 (𝜑 → ∀𝑦 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)𝑦 ∈ ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵))
122 dfss3 3959 . . . . 5 (ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵) ⊆ ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵) ↔ ∀𝑦 ∈ ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵)𝑦 ∈ ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵))
123121, 122sylibr 235 . . . 4 (𝜑 → ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵) ⊆ ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵))
124 supxrss 12718 . . . 4 ((ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵) ⊆ ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵) ∧ ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵) ⊆ ℝ*) → sup(ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵), ℝ*, < ) ≤ sup(ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵), ℝ*, < ))
125123, 25, 124syl2anc 584 . . 3 (𝜑 → sup(ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵), ℝ*, < ) ≤ sup(ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵), ℝ*, < ))
12627, 43, 99, 125xrletrid 12541 . 2 (𝜑 → sup(ran (𝑥 ∈ (𝒫 𝑍 ∩ Fin) ↦ Σ𝑘𝑥 𝐵), ℝ*, < ) = sup(ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵), ℝ*, < ))
1277, 126eqtrd 2860 1 (𝜑 → (Σ^‘(𝑘𝑍𝐵)) = sup(ran (𝑛𝑍 ↦ Σ𝑘 ∈ (𝑀...𝑛)𝐵), ℝ*, < ))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 207  wa 396  w3a 1081   = wceq 1530  wnf 1777  wcel 2106  wral 3142  wrex 3143  Vcvv 3499  cin 3938  wss 3939  𝒫 cpw 4541   class class class wbr 5062  cmpt 5142  ran crn 5554  cfv 6351  (class class class)co 7151  Fincfn 8501  supcsup 8896  cr 10528  0cc0 10529  +∞cpnf 10664  *cxr 10666   < clt 10667  cle 10668  cz 11973  cuz 12235  [,)cico 12733  ...cfz 12885  Σcsu 15035  Σ^csumge0 42507
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1789  ax-4 1803  ax-5 1904  ax-6 1963  ax-7 2008  ax-8 2108  ax-9 2116  ax-10 2137  ax-11 2152  ax-12 2167  ax-13 2385  ax-ext 2796  ax-rep 5186  ax-sep 5199  ax-nul 5206  ax-pow 5262  ax-pr 5325  ax-un 7454  ax-inf2 9096  ax-cnex 10585  ax-resscn 10586  ax-1cn 10587  ax-icn 10588  ax-addcl 10589  ax-addrcl 10590  ax-mulcl 10591  ax-mulrcl 10592  ax-mulcom 10593  ax-addass 10594  ax-mulass 10595  ax-distr 10596  ax-i2m1 10597  ax-1ne0 10598  ax-1rid 10599  ax-rnegex 10600  ax-rrecex 10601  ax-cnre 10602  ax-pre-lttri 10603  ax-pre-lttrn 10604  ax-pre-ltadd 10605  ax-pre-mulgt0 10606  ax-pre-sup 10607
This theorem depends on definitions:  df-bi 208  df-an 397  df-or 844  df-3or 1082  df-3an 1083  df-tru 1533  df-fal 1543  df-ex 1774  df-nf 1778  df-sb 2063  df-mo 2615  df-eu 2649  df-clab 2803  df-cleq 2817  df-clel 2897  df-nfc 2967  df-ne 3021  df-nel 3128  df-ral 3147  df-rex 3148  df-reu 3149  df-rmo 3150  df-rab 3151  df-v 3501  df-sbc 3776  df-csb 3887  df-dif 3942  df-un 3944  df-in 3946  df-ss 3955  df-pss 3957  df-nul 4295  df-if 4470  df-pw 4543  df-sn 4564  df-pr 4566  df-tp 4568  df-op 4570  df-uni 4837  df-int 4874  df-iun 4918  df-br 5063  df-opab 5125  df-mpt 5143  df-tr 5169  df-id 5458  df-eprel 5463  df-po 5472  df-so 5473  df-fr 5512  df-se 5513  df-we 5514  df-xp 5559  df-rel 5560  df-cnv 5561  df-co 5562  df-dm 5563  df-rn 5564  df-res 5565  df-ima 5566  df-pred 6145  df-ord 6191  df-on 6192  df-lim 6193  df-suc 6194  df-iota 6311  df-fun 6353  df-fn 6354  df-f 6355  df-f1 6356  df-fo 6357  df-f1o 6358  df-fv 6359  df-isom 6360  df-riota 7109  df-ov 7154  df-oprab 7155  df-mpo 7156  df-om 7572  df-1st 7683  df-2nd 7684  df-wrecs 7941  df-recs 8002  df-rdg 8040  df-1o 8096  df-oadd 8100  df-er 8282  df-en 8502  df-dom 8503  df-sdom 8504  df-fin 8505  df-sup 8898  df-oi 8966  df-card 9360  df-pnf 10669  df-mnf 10670  df-xr 10671  df-ltxr 10672  df-le 10673  df-sub 10864  df-neg 10865  df-div 11290  df-nn 11631  df-2 11692  df-3 11693  df-n0 11890  df-z 11974  df-uz 12236  df-rp 12383  df-ico 12737  df-icc 12738  df-fz 12886  df-fzo 13027  df-seq 13363  df-exp 13423  df-hash 13684  df-cj 14451  df-re 14452  df-im 14453  df-sqrt 14587  df-abs 14588  df-clim 14838  df-sum 15036  df-sumge0 42508
This theorem is referenced by:  sge0reuzb  42593
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