Mathbox for Glauco Siliprandi < Previous   Next > Nearby theorems Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  sge0cl Structured version   Visualization version   GIF version

Theorem sge0cl 43386
 Description: The arbitrary sum of nonnegative extended reals is a nonnegative extended real. (Contributed by Glauco Siliprandi, 17-Aug-2020.)
Hypotheses
Ref Expression
sge0cl.x (𝜑𝑋𝑉)
sge0cl.f (𝜑𝐹:𝑋⟶(0[,]+∞))
Assertion
Ref Expression
sge0cl (𝜑 → (Σ^𝐹) ∈ (0[,]+∞))

Proof of Theorem sge0cl
Dummy variables 𝑥 𝑦 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 fveq2 6658 . . . . 5 (𝐹 = ∅ → (Σ^𝐹) = (Σ^‘∅))
2 sge00 43381 . . . . . 6 ^‘∅) = 0
32a1i 11 . . . . 5 (𝐹 = ∅ → (Σ^‘∅) = 0)
41, 3eqtrd 2793 . . . 4 (𝐹 = ∅ → (Σ^𝐹) = 0)
5 0e0iccpnf 12891 . . . . 5 0 ∈ (0[,]+∞)
65a1i 11 . . . 4 (𝐹 = ∅ → 0 ∈ (0[,]+∞))
74, 6eqeltrd 2852 . . 3 (𝐹 = ∅ → (Σ^𝐹) ∈ (0[,]+∞))
87adantl 485 . 2 ((𝜑𝐹 = ∅) → (Σ^𝐹) ∈ (0[,]+∞))
9 sge0cl.x . . . . . . 7 (𝜑𝑋𝑉)
109adantr 484 . . . . . 6 ((𝜑 ∧ +∞ ∈ ran 𝐹) → 𝑋𝑉)
11 sge0cl.f . . . . . . 7 (𝜑𝐹:𝑋⟶(0[,]+∞))
1211adantr 484 . . . . . 6 ((𝜑 ∧ +∞ ∈ ran 𝐹) → 𝐹:𝑋⟶(0[,]+∞))
13 simpr 488 . . . . . 6 ((𝜑 ∧ +∞ ∈ ran 𝐹) → +∞ ∈ ran 𝐹)
1410, 12, 13sge0pnfval 43378 . . . . 5 ((𝜑 ∧ +∞ ∈ ran 𝐹) → (Σ^𝐹) = +∞)
15 pnfel0pnf 42531 . . . . . 6 +∞ ∈ (0[,]+∞)
1615a1i 11 . . . . 5 ((𝜑 ∧ +∞ ∈ ran 𝐹) → +∞ ∈ (0[,]+∞))
1714, 16eqeltrd 2852 . . . 4 ((𝜑 ∧ +∞ ∈ ran 𝐹) → (Σ^𝐹) ∈ (0[,]+∞))
1817adantlr 714 . . 3 (((𝜑 ∧ ¬ 𝐹 = ∅) ∧ +∞ ∈ ran 𝐹) → (Σ^𝐹) ∈ (0[,]+∞))
19 simpll 766 . . . 4 (((𝜑 ∧ ¬ 𝐹 = ∅) ∧ ¬ +∞ ∈ ran 𝐹) → 𝜑)
20 neqne 2959 . . . . 5 𝐹 = ∅ → 𝐹 ≠ ∅)
2120ad2antlr 726 . . . 4 (((𝜑 ∧ ¬ 𝐹 = ∅) ∧ ¬ +∞ ∈ ran 𝐹) → 𝐹 ≠ ∅)
22 simpr 488 . . . 4 (((𝜑 ∧ ¬ 𝐹 = ∅) ∧ ¬ +∞ ∈ ran 𝐹) → ¬ +∞ ∈ ran 𝐹)
23 0xr 10726 . . . . . 6 0 ∈ ℝ*
2423a1i 11 . . . . 5 (((𝜑𝐹 ≠ ∅) ∧ ¬ +∞ ∈ ran 𝐹) → 0 ∈ ℝ*)
25 pnfxr 10733 . . . . . 6 +∞ ∈ ℝ*
2625a1i 11 . . . . 5 (((𝜑𝐹 ≠ ∅) ∧ ¬ +∞ ∈ ran 𝐹) → +∞ ∈ ℝ*)
279adantr 484 . . . . . . . 8 ((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) → 𝑋𝑉)
2811adantr 484 . . . . . . . . 9 ((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) → 𝐹:𝑋⟶(0[,]+∞))
29 simpr 488 . . . . . . . . 9 ((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) → ¬ +∞ ∈ ran 𝐹)
3028, 29fge0iccico 43375 . . . . . . . 8 ((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) → 𝐹:𝑋⟶(0[,)+∞))
3127, 30sge0reval 43377 . . . . . . 7 ((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) → (Σ^𝐹) = sup(ran (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦)), ℝ*, < ))
32 elinel2 4101 . . . . . . . . . . . . 13 (𝑥 ∈ (𝒫 𝑋 ∩ Fin) → 𝑥 ∈ Fin)
3332adantl 485 . . . . . . . . . . . 12 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑥 ∈ (𝒫 𝑋 ∩ Fin)) → 𝑥 ∈ Fin)
3411ad2antrr 725 . . . . . . . . . . . . . . 15 (((𝜑𝑥 ∈ (𝒫 𝑋 ∩ Fin)) ∧ 𝑦𝑥) → 𝐹:𝑋⟶(0[,]+∞))
35 elinel1 4100 . . . . . . . . . . . . . . . . . . 19 (𝑥 ∈ (𝒫 𝑋 ∩ Fin) → 𝑥 ∈ 𝒫 𝑋)
36 elpwi 4503 . . . . . . . . . . . . . . . . . . 19 (𝑥 ∈ 𝒫 𝑋𝑥𝑋)
3735, 36syl 17 . . . . . . . . . . . . . . . . . 18 (𝑥 ∈ (𝒫 𝑋 ∩ Fin) → 𝑥𝑋)
3837adantl 485 . . . . . . . . . . . . . . . . 17 ((𝜑𝑥 ∈ (𝒫 𝑋 ∩ Fin)) → 𝑥𝑋)
3938adantr 484 . . . . . . . . . . . . . . . 16 (((𝜑𝑥 ∈ (𝒫 𝑋 ∩ Fin)) ∧ 𝑦𝑥) → 𝑥𝑋)
40 simpr 488 . . . . . . . . . . . . . . . 16 (((𝜑𝑥 ∈ (𝒫 𝑋 ∩ Fin)) ∧ 𝑦𝑥) → 𝑦𝑥)
4139, 40sseldd 3893 . . . . . . . . . . . . . . 15 (((𝜑𝑥 ∈ (𝒫 𝑋 ∩ Fin)) ∧ 𝑦𝑥) → 𝑦𝑋)
4234, 41ffvelrnd 6843 . . . . . . . . . . . . . 14 (((𝜑𝑥 ∈ (𝒫 𝑋 ∩ Fin)) ∧ 𝑦𝑥) → (𝐹𝑦) ∈ (0[,]+∞))
4342adantllr 718 . . . . . . . . . . . . 13 ((((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑥 ∈ (𝒫 𝑋 ∩ Fin)) ∧ 𝑦𝑥) → (𝐹𝑦) ∈ (0[,]+∞))
44 nne 2955 . . . . . . . . . . . . . . . . . 18 (¬ (𝐹𝑦) ≠ +∞ ↔ (𝐹𝑦) = +∞)
4544biimpi 219 . . . . . . . . . . . . . . . . 17 (¬ (𝐹𝑦) ≠ +∞ → (𝐹𝑦) = +∞)
4645eqcomd 2764 . . . . . . . . . . . . . . . 16 (¬ (𝐹𝑦) ≠ +∞ → +∞ = (𝐹𝑦))
4746adantl 485 . . . . . . . . . . . . . . 15 (((((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑥 ∈ (𝒫 𝑋 ∩ Fin)) ∧ 𝑦𝑥) ∧ ¬ (𝐹𝑦) ≠ +∞) → +∞ = (𝐹𝑦))
4811ffund 6502 . . . . . . . . . . . . . . . . . 18 (𝜑 → Fun 𝐹)
49483ad2ant1 1130 . . . . . . . . . . . . . . . . 17 ((𝜑𝑥 ∈ (𝒫 𝑋 ∩ Fin) ∧ 𝑦𝑥) → Fun 𝐹)
50413impa 1107 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑥 ∈ (𝒫 𝑋 ∩ Fin) ∧ 𝑦𝑥) → 𝑦𝑋)
5111fdmd 6508 . . . . . . . . . . . . . . . . . . . 20 (𝜑 → dom 𝐹 = 𝑋)
5251eqcomd 2764 . . . . . . . . . . . . . . . . . . 19 (𝜑𝑋 = dom 𝐹)
53523ad2ant1 1130 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑥 ∈ (𝒫 𝑋 ∩ Fin) ∧ 𝑦𝑥) → 𝑋 = dom 𝐹)
5450, 53eleqtrd 2854 . . . . . . . . . . . . . . . . 17 ((𝜑𝑥 ∈ (𝒫 𝑋 ∩ Fin) ∧ 𝑦𝑥) → 𝑦 ∈ dom 𝐹)
55 fvelrn 6835 . . . . . . . . . . . . . . . . 17 ((Fun 𝐹𝑦 ∈ dom 𝐹) → (𝐹𝑦) ∈ ran 𝐹)
5649, 54, 55syl2anc 587 . . . . . . . . . . . . . . . 16 ((𝜑𝑥 ∈ (𝒫 𝑋 ∩ Fin) ∧ 𝑦𝑥) → (𝐹𝑦) ∈ ran 𝐹)
5756ad5ant134 1364 . . . . . . . . . . . . . . 15 (((((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑥 ∈ (𝒫 𝑋 ∩ Fin)) ∧ 𝑦𝑥) ∧ ¬ (𝐹𝑦) ≠ +∞) → (𝐹𝑦) ∈ ran 𝐹)
5847, 57eqeltrd 2852 . . . . . . . . . . . . . 14 (((((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑥 ∈ (𝒫 𝑋 ∩ Fin)) ∧ 𝑦𝑥) ∧ ¬ (𝐹𝑦) ≠ +∞) → +∞ ∈ ran 𝐹)
5929ad3antrrr 729 . . . . . . . . . . . . . 14 (((((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑥 ∈ (𝒫 𝑋 ∩ Fin)) ∧ 𝑦𝑥) ∧ ¬ (𝐹𝑦) ≠ +∞) → ¬ +∞ ∈ ran 𝐹)
6058, 59condan 817 . . . . . . . . . . . . 13 ((((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑥 ∈ (𝒫 𝑋 ∩ Fin)) ∧ 𝑦𝑥) → (𝐹𝑦) ≠ +∞)
61 ge0xrre 42534 . . . . . . . . . . . . 13 (((𝐹𝑦) ∈ (0[,]+∞) ∧ (𝐹𝑦) ≠ +∞) → (𝐹𝑦) ∈ ℝ)
6243, 60, 61syl2anc 587 . . . . . . . . . . . 12 ((((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑥 ∈ (𝒫 𝑋 ∩ Fin)) ∧ 𝑦𝑥) → (𝐹𝑦) ∈ ℝ)
6333, 62fsumrecl 15139 . . . . . . . . . . 11 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑥 ∈ (𝒫 𝑋 ∩ Fin)) → Σ𝑦𝑥 (𝐹𝑦) ∈ ℝ)
6463ralrimiva 3113 . . . . . . . . . 10 ((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) → ∀𝑥 ∈ (𝒫 𝑋 ∩ Fin)Σ𝑦𝑥 (𝐹𝑦) ∈ ℝ)
65 eqid 2758 . . . . . . . . . . 11 (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦)) = (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦))
6665rnmptss 6877 . . . . . . . . . 10 (∀𝑥 ∈ (𝒫 𝑋 ∩ Fin)Σ𝑦𝑥 (𝐹𝑦) ∈ ℝ → ran (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦)) ⊆ ℝ)
6764, 66syl 17 . . . . . . . . 9 ((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) → ran (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦)) ⊆ ℝ)
68 ressxr 10723 . . . . . . . . . 10 ℝ ⊆ ℝ*
6968a1i 11 . . . . . . . . 9 ((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) → ℝ ⊆ ℝ*)
7067, 69sstrd 3902 . . . . . . . 8 ((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) → ran (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦)) ⊆ ℝ*)
71 supxrcl 12749 . . . . . . . 8 (ran (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦)) ⊆ ℝ* → sup(ran (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦)), ℝ*, < ) ∈ ℝ*)
7270, 71syl 17 . . . . . . 7 ((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) → sup(ran (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦)), ℝ*, < ) ∈ ℝ*)
7331, 72eqeltrd 2852 . . . . . 6 ((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) → (Σ^𝐹) ∈ ℝ*)
7473adantlr 714 . . . . 5 (((𝜑𝐹 ≠ ∅) ∧ ¬ +∞ ∈ ran 𝐹) → (Σ^𝐹) ∈ ℝ*)
7552adantr 484 . . . . . . . . 9 ((𝜑𝐹 ≠ ∅) → 𝑋 = dom 𝐹)
76 neneq 2957 . . . . . . . . . . . 12 (𝐹 ≠ ∅ → ¬ 𝐹 = ∅)
7776adantl 485 . . . . . . . . . . 11 ((𝜑𝐹 ≠ ∅) → ¬ 𝐹 = ∅)
78 frel 6503 . . . . . . . . . . . . . 14 (𝐹:𝑋⟶(0[,]+∞) → Rel 𝐹)
7911, 78syl 17 . . . . . . . . . . . . 13 (𝜑 → Rel 𝐹)
8079adantr 484 . . . . . . . . . . . 12 ((𝜑𝐹 ≠ ∅) → Rel 𝐹)
81 reldm0 5769 . . . . . . . . . . . 12 (Rel 𝐹 → (𝐹 = ∅ ↔ dom 𝐹 = ∅))
8280, 81syl 17 . . . . . . . . . . 11 ((𝜑𝐹 ≠ ∅) → (𝐹 = ∅ ↔ dom 𝐹 = ∅))
8377, 82mtbid 327 . . . . . . . . . 10 ((𝜑𝐹 ≠ ∅) → ¬ dom 𝐹 = ∅)
8483neqned 2958 . . . . . . . . 9 ((𝜑𝐹 ≠ ∅) → dom 𝐹 ≠ ∅)
8575, 84eqnetrd 3018 . . . . . . . 8 ((𝜑𝐹 ≠ ∅) → 𝑋 ≠ ∅)
86 n0 4245 . . . . . . . 8 (𝑋 ≠ ∅ ↔ ∃𝑧 𝑧𝑋)
8785, 86sylib 221 . . . . . . 7 ((𝜑𝐹 ≠ ∅) → ∃𝑧 𝑧𝑋)
8887adantr 484 . . . . . 6 (((𝜑𝐹 ≠ ∅) ∧ ¬ +∞ ∈ ran 𝐹) → ∃𝑧 𝑧𝑋)
8923a1i 11 . . . . . . . . . 10 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → 0 ∈ ℝ*)
9011ffvelrnda 6842 . . . . . . . . . . . . 13 ((𝜑𝑧𝑋) → (𝐹𝑧) ∈ (0[,]+∞))
9190adantlr 714 . . . . . . . . . . . 12 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → (𝐹𝑧) ∈ (0[,]+∞))
92 nne 2955 . . . . . . . . . . . . . . . . 17 (¬ (𝐹𝑧) ≠ +∞ ↔ (𝐹𝑧) = +∞)
9392biimpi 219 . . . . . . . . . . . . . . . 16 (¬ (𝐹𝑧) ≠ +∞ → (𝐹𝑧) = +∞)
9493eqcomd 2764 . . . . . . . . . . . . . . 15 (¬ (𝐹𝑧) ≠ +∞ → +∞ = (𝐹𝑧))
9594adantl 485 . . . . . . . . . . . . . 14 ((((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) ∧ ¬ (𝐹𝑧) ≠ +∞) → +∞ = (𝐹𝑧))
9611adantr 484 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑧𝑋) → 𝐹:𝑋⟶(0[,]+∞))
9796ffund 6502 . . . . . . . . . . . . . . . . 17 ((𝜑𝑧𝑋) → Fun 𝐹)
98 simpr 488 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑧𝑋) → 𝑧𝑋)
9952adantr 484 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑧𝑋) → 𝑋 = dom 𝐹)
10098, 99eleqtrd 2854 . . . . . . . . . . . . . . . . 17 ((𝜑𝑧𝑋) → 𝑧 ∈ dom 𝐹)
101 fvelrn 6835 . . . . . . . . . . . . . . . . 17 ((Fun 𝐹𝑧 ∈ dom 𝐹) → (𝐹𝑧) ∈ ran 𝐹)
10297, 100, 101syl2anc 587 . . . . . . . . . . . . . . . 16 ((𝜑𝑧𝑋) → (𝐹𝑧) ∈ ran 𝐹)
103102adantlr 714 . . . . . . . . . . . . . . 15 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → (𝐹𝑧) ∈ ran 𝐹)
104103adantr 484 . . . . . . . . . . . . . 14 ((((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) ∧ ¬ (𝐹𝑧) ≠ +∞) → (𝐹𝑧) ∈ ran 𝐹)
10595, 104eqeltrd 2852 . . . . . . . . . . . . 13 ((((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) ∧ ¬ (𝐹𝑧) ≠ +∞) → +∞ ∈ ran 𝐹)
10629ad2antrr 725 . . . . . . . . . . . . 13 ((((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) ∧ ¬ (𝐹𝑧) ≠ +∞) → ¬ +∞ ∈ ran 𝐹)
107105, 106condan 817 . . . . . . . . . . . 12 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → (𝐹𝑧) ≠ +∞)
108 ge0xrre 42534 . . . . . . . . . . . 12 (((𝐹𝑧) ∈ (0[,]+∞) ∧ (𝐹𝑧) ≠ +∞) → (𝐹𝑧) ∈ ℝ)
10991, 107, 108syl2anc 587 . . . . . . . . . . 11 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → (𝐹𝑧) ∈ ℝ)
110109rexrd 10729 . . . . . . . . . 10 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → (𝐹𝑧) ∈ ℝ*)
11173adantr 484 . . . . . . . . . 10 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → (Σ^𝐹) ∈ ℝ*)
11223a1i 11 . . . . . . . . . . . 12 ((𝜑𝑧𝑋) → 0 ∈ ℝ*)
11325a1i 11 . . . . . . . . . . . 12 ((𝜑𝑧𝑋) → +∞ ∈ ℝ*)
114 iccgelb 12835 . . . . . . . . . . . 12 ((0 ∈ ℝ* ∧ +∞ ∈ ℝ* ∧ (𝐹𝑧) ∈ (0[,]+∞)) → 0 ≤ (𝐹𝑧))
115112, 113, 90, 114syl3anc 1368 . . . . . . . . . . 11 ((𝜑𝑧𝑋) → 0 ≤ (𝐹𝑧))
116115adantlr 714 . . . . . . . . . 10 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → 0 ≤ (𝐹𝑧))
11770adantr 484 . . . . . . . . . . . 12 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → ran (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦)) ⊆ ℝ*)
118 snelpwi 5305 . . . . . . . . . . . . . . . 16 (𝑧𝑋 → {𝑧} ∈ 𝒫 𝑋)
119 snfi 8614 . . . . . . . . . . . . . . . . 17 {𝑧} ∈ Fin
120119a1i 11 . . . . . . . . . . . . . . . 16 (𝑧𝑋 → {𝑧} ∈ Fin)
121118, 120elind 4099 . . . . . . . . . . . . . . 15 (𝑧𝑋 → {𝑧} ∈ (𝒫 𝑋 ∩ Fin))
122121adantl 485 . . . . . . . . . . . . . 14 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → {𝑧} ∈ (𝒫 𝑋 ∩ Fin))
123 simpr 488 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → 𝑧𝑋)
124109recnd 10707 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → (𝐹𝑧) ∈ ℂ)
125 fveq2 6658 . . . . . . . . . . . . . . . . 17 (𝑦 = 𝑧 → (𝐹𝑦) = (𝐹𝑧))
126125sumsn 15149 . . . . . . . . . . . . . . . 16 ((𝑧𝑋 ∧ (𝐹𝑧) ∈ ℂ) → Σ𝑦 ∈ {𝑧} (𝐹𝑦) = (𝐹𝑧))
127123, 124, 126syl2anc 587 . . . . . . . . . . . . . . 15 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → Σ𝑦 ∈ {𝑧} (𝐹𝑦) = (𝐹𝑧))
128127eqcomd 2764 . . . . . . . . . . . . . 14 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → (𝐹𝑧) = Σ𝑦 ∈ {𝑧} (𝐹𝑦))
129 sumeq1 15093 . . . . . . . . . . . . . . 15 (𝑥 = {𝑧} → Σ𝑦𝑥 (𝐹𝑦) = Σ𝑦 ∈ {𝑧} (𝐹𝑦))
130129rspceeqv 3556 . . . . . . . . . . . . . 14 (({𝑧} ∈ (𝒫 𝑋 ∩ Fin) ∧ (𝐹𝑧) = Σ𝑦 ∈ {𝑧} (𝐹𝑦)) → ∃𝑥 ∈ (𝒫 𝑋 ∩ Fin)(𝐹𝑧) = Σ𝑦𝑥 (𝐹𝑦))
131122, 128, 130syl2anc 587 . . . . . . . . . . . . 13 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → ∃𝑥 ∈ (𝒫 𝑋 ∩ Fin)(𝐹𝑧) = Σ𝑦𝑥 (𝐹𝑦))
13265elrnmpt 5797 . . . . . . . . . . . . . 14 ((𝐹𝑧) ∈ (0[,]+∞) → ((𝐹𝑧) ∈ ran (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦)) ↔ ∃𝑥 ∈ (𝒫 𝑋 ∩ Fin)(𝐹𝑧) = Σ𝑦𝑥 (𝐹𝑦)))
13391, 132syl 17 . . . . . . . . . . . . 13 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → ((𝐹𝑧) ∈ ran (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦)) ↔ ∃𝑥 ∈ (𝒫 𝑋 ∩ Fin)(𝐹𝑧) = Σ𝑦𝑥 (𝐹𝑦)))
134131, 133mpbird 260 . . . . . . . . . . . 12 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → (𝐹𝑧) ∈ ran (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦)))
135 supxrub 12758 . . . . . . . . . . . 12 ((ran (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦)) ⊆ ℝ* ∧ (𝐹𝑧) ∈ ran (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦))) → (𝐹𝑧) ≤ sup(ran (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦)), ℝ*, < ))
136117, 134, 135syl2anc 587 . . . . . . . . . . 11 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → (𝐹𝑧) ≤ sup(ran (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦)), ℝ*, < ))
13731eqcomd 2764 . . . . . . . . . . . 12 ((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) → sup(ran (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦)), ℝ*, < ) = (Σ^𝐹))
138137adantr 484 . . . . . . . . . . 11 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → sup(ran (𝑥 ∈ (𝒫 𝑋 ∩ Fin) ↦ Σ𝑦𝑥 (𝐹𝑦)), ℝ*, < ) = (Σ^𝐹))
139136, 138breqtrd 5058 . . . . . . . . . 10 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → (𝐹𝑧) ≤ (Σ^𝐹))
14089, 110, 111, 116, 139xrletrd 12596 . . . . . . . . 9 (((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) ∧ 𝑧𝑋) → 0 ≤ (Σ^𝐹))
141140ex 416 . . . . . . . 8 ((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) → (𝑧𝑋 → 0 ≤ (Σ^𝐹)))
142141adantlr 714 . . . . . . 7 (((𝜑𝐹 ≠ ∅) ∧ ¬ +∞ ∈ ran 𝐹) → (𝑧𝑋 → 0 ≤ (Σ^𝐹)))
143142exlimdv 1934 . . . . . 6 (((𝜑𝐹 ≠ ∅) ∧ ¬ +∞ ∈ ran 𝐹) → (∃𝑧 𝑧𝑋 → 0 ≤ (Σ^𝐹)))
14488, 143mpd 15 . . . . 5 (((𝜑𝐹 ≠ ∅) ∧ ¬ +∞ ∈ ran 𝐹) → 0 ≤ (Σ^𝐹))
145 pnfge 12566 . . . . . . 7 ((Σ^𝐹) ∈ ℝ* → (Σ^𝐹) ≤ +∞)
14673, 145syl 17 . . . . . 6 ((𝜑 ∧ ¬ +∞ ∈ ran 𝐹) → (Σ^𝐹) ≤ +∞)
147146adantlr 714 . . . . 5 (((𝜑𝐹 ≠ ∅) ∧ ¬ +∞ ∈ ran 𝐹) → (Σ^𝐹) ≤ +∞)
14824, 26, 74, 144, 147eliccxrd 42530 . . . 4 (((𝜑𝐹 ≠ ∅) ∧ ¬ +∞ ∈ ran 𝐹) → (Σ^𝐹) ∈ (0[,]+∞))
14919, 21, 22, 148syl21anc 836 . . 3 (((𝜑 ∧ ¬ 𝐹 = ∅) ∧ ¬ +∞ ∈ ran 𝐹) → (Σ^𝐹) ∈ (0[,]+∞))
15018, 149pm2.61dan 812 . 2 ((𝜑 ∧ ¬ 𝐹 = ∅) → (Σ^𝐹) ∈ (0[,]+∞))
1518, 150pm2.61dan 812 1 (𝜑 → (Σ^𝐹) ∈ (0[,]+∞))
 Colors of variables: wff setvar class Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 209   ∧ wa 399   ∧ w3a 1084   = wceq 1538  ∃wex 1781   ∈ wcel 2111   ≠ wne 2951  ∀wral 3070  ∃wrex 3071   ∩ cin 3857   ⊆ wss 3858  ∅c0 4225  𝒫 cpw 4494  {csn 4522   class class class wbr 5032   ↦ cmpt 5112  dom cdm 5524  ran crn 5525  Rel wrel 5529  Fun wfun 6329  ⟶wf 6331  ‘cfv 6335  (class class class)co 7150  Fincfn 8527  supcsup 8937  ℂcc 10573  ℝcr 10574  0cc0 10575  +∞cpnf 10710  ℝ*cxr 10712   < clt 10713   ≤ cle 10714  [,]cicc 12782  Σcsu 15090  Σ^csumge0 43367 This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2113  ax-9 2121  ax-10 2142  ax-11 2158  ax-12 2175  ax-ext 2729  ax-rep 5156  ax-sep 5169  ax-nul 5176  ax-pow 5234  ax-pr 5298  ax-un 7459  ax-inf2 9137  ax-cnex 10631  ax-resscn 10632  ax-1cn 10633  ax-icn 10634  ax-addcl 10635  ax-addrcl 10636  ax-mulcl 10637  ax-mulrcl 10638  ax-mulcom 10639  ax-addass 10640  ax-mulass 10641  ax-distr 10642  ax-i2m1 10643  ax-1ne0 10644  ax-1rid 10645  ax-rnegex 10646  ax-rrecex 10647  ax-cnre 10648  ax-pre-lttri 10649  ax-pre-lttrn 10650  ax-pre-ltadd 10651  ax-pre-mulgt0 10652  ax-pre-sup 10653 This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3or 1085  df-3an 1086  df-tru 1541  df-fal 1551  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2557  df-eu 2588  df-clab 2736  df-cleq 2750  df-clel 2830  df-nfc 2901  df-ne 2952  df-nel 3056  df-ral 3075  df-rex 3076  df-reu 3077  df-rmo 3078  df-rab 3079  df-v 3411  df-sbc 3697  df-csb 3806  df-dif 3861  df-un 3863  df-in 3865  df-ss 3875  df-pss 3877  df-nul 4226  df-if 4421  df-pw 4496  df-sn 4523  df-pr 4525  df-tp 4527  df-op 4529  df-uni 4799  df-int 4839  df-iun 4885  df-br 5033  df-opab 5095  df-mpt 5113  df-tr 5139  df-id 5430  df-eprel 5435  df-po 5443  df-so 5444  df-fr 5483  df-se 5484  df-we 5485  df-xp 5530  df-rel 5531  df-cnv 5532  df-co 5533  df-dm 5534  df-rn 5535  df-res 5536  df-ima 5537  df-pred 6126  df-ord 6172  df-on 6173  df-lim 6174  df-suc 6175  df-iota 6294  df-fun 6337  df-fn 6338  df-f 6339  df-f1 6340  df-fo 6341  df-f1o 6342  df-fv 6343  df-isom 6344  df-riota 7108  df-ov 7153  df-oprab 7154  df-mpo 7155  df-om 7580  df-1st 7693  df-2nd 7694  df-wrecs 7957  df-recs 8018  df-rdg 8056  df-1o 8112  df-er 8299  df-en 8528  df-dom 8529  df-sdom 8530  df-fin 8531  df-sup 8939  df-oi 9007  df-card 9401  df-pnf 10715  df-mnf 10716  df-xr 10717  df-ltxr 10718  df-le 10719  df-sub 10910  df-neg 10911  df-div 11336  df-nn 11675  df-2 11737  df-3 11738  df-n0 11935  df-z 12021  df-uz 12283  df-rp 12431  df-ico 12785  df-icc 12786  df-fz 12940  df-fzo 13083  df-seq 13419  df-exp 13480  df-hash 13741  df-cj 14506  df-re 14507  df-im 14508  df-sqrt 14642  df-abs 14643  df-clim 14893  df-sum 15091  df-sumge0 43368 This theorem is referenced by:  sge0ge0  43389  sge0xrcl  43390  sge0split  43414  sge0iunmptlemre  43420  sge0iunmpt  43423  sge0nemnf  43425  sge0clmpt  43430  sge0isum  43432  psmeasure  43476  ovnsupge0  43562  ovnsubaddlem1  43575  sge0hsphoire  43594  hoidmvlelem1  43600  hspmbllem2  43632
 Copyright terms: Public domain W3C validator