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| Mirrors > Home > MPE Home > Th. List > Mathboxes > sge0gerp | Structured version Visualization version GIF version | ||
| Description: The arbitrary sum of nonnegative extended reals is greater than or equal to a given extended real number if this number can be approximated from below by finite subsums. (Contributed by Glauco Siliprandi, 17-Aug-2020.) |
| Ref | Expression |
|---|---|
| sge0gerp.x | ⊢ (𝜑 → 𝑋 ∈ 𝑉) |
| sge0gerp.f | ⊢ (𝜑 → 𝐹:𝑋⟶(0[,]+∞)) |
| sge0gerp.a | ⊢ (𝜑 → 𝐴 ∈ ℝ*) |
| sge0gerp.z | ⊢ ((𝜑 ∧ 𝑥 ∈ ℝ+) → ∃𝑧 ∈ (𝒫 𝑋 ∩ Fin)𝐴 ≤ ((Σ^‘(𝐹 ↾ 𝑧)) +𝑒 𝑥)) |
| Ref | Expression |
|---|---|
| sge0gerp | ⊢ (𝜑 → 𝐴 ≤ (Σ^‘𝐹)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfv 1914 | . . 3 ⊢ Ⅎ𝑥𝜑 | |
| 2 | simpr 484 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑧 ∈ (𝒫 𝑋 ∩ Fin)) → 𝑧 ∈ (𝒫 𝑋 ∩ Fin)) | |
| 3 | sge0gerp.f | . . . . . . . 8 ⊢ (𝜑 → 𝐹:𝑋⟶(0[,]+∞)) | |
| 4 | 3 | adantr 480 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑧 ∈ (𝒫 𝑋 ∩ Fin)) → 𝐹:𝑋⟶(0[,]+∞)) |
| 5 | elinel1 4167 | . . . . . . . . 9 ⊢ (𝑧 ∈ (𝒫 𝑋 ∩ Fin) → 𝑧 ∈ 𝒫 𝑋) | |
| 6 | elpwi 4573 | . . . . . . . . 9 ⊢ (𝑧 ∈ 𝒫 𝑋 → 𝑧 ⊆ 𝑋) | |
| 7 | 5, 6 | syl 17 | . . . . . . . 8 ⊢ (𝑧 ∈ (𝒫 𝑋 ∩ Fin) → 𝑧 ⊆ 𝑋) |
| 8 | 7 | adantl 481 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑧 ∈ (𝒫 𝑋 ∩ Fin)) → 𝑧 ⊆ 𝑋) |
| 9 | 4, 8 | fssresd 6730 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑧 ∈ (𝒫 𝑋 ∩ Fin)) → (𝐹 ↾ 𝑧):𝑧⟶(0[,]+∞)) |
| 10 | 2, 9 | sge0xrcl 46390 | . . . . 5 ⊢ ((𝜑 ∧ 𝑧 ∈ (𝒫 𝑋 ∩ Fin)) → (Σ^‘(𝐹 ↾ 𝑧)) ∈ ℝ*) |
| 11 | 10 | ralrimiva 3126 | . . . 4 ⊢ (𝜑 → ∀𝑧 ∈ (𝒫 𝑋 ∩ Fin)(Σ^‘(𝐹 ↾ 𝑧)) ∈ ℝ*) |
| 12 | eqid 2730 | . . . . 5 ⊢ (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))) = (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))) | |
| 13 | 12 | rnmptss 7098 | . . . 4 ⊢ (∀𝑧 ∈ (𝒫 𝑋 ∩ Fin)(Σ^‘(𝐹 ↾ 𝑧)) ∈ ℝ* → ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))) ⊆ ℝ*) |
| 14 | 11, 13 | syl 17 | . . 3 ⊢ (𝜑 → ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))) ⊆ ℝ*) |
| 15 | sge0gerp.a | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℝ*) | |
| 16 | sge0gerp.z | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ ℝ+) → ∃𝑧 ∈ (𝒫 𝑋 ∩ Fin)𝐴 ≤ ((Σ^‘(𝐹 ↾ 𝑧)) +𝑒 𝑥)) | |
| 17 | nfv 1914 | . . . . 5 ⊢ Ⅎ𝑧(𝜑 ∧ 𝑥 ∈ ℝ+) | |
| 18 | nfmpt1 5209 | . . . . . . 7 ⊢ Ⅎ𝑧(𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))) | |
| 19 | 18 | nfrn 5919 | . . . . . 6 ⊢ Ⅎ𝑧ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))) |
| 20 | nfv 1914 | . . . . . 6 ⊢ Ⅎ𝑧 𝐴 ≤ (𝑦 +𝑒 𝑥) | |
| 21 | 19, 20 | nfrexw 3289 | . . . . 5 ⊢ Ⅎ𝑧∃𝑦 ∈ ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧)))𝐴 ≤ (𝑦 +𝑒 𝑥) |
| 22 | id 22 | . . . . . . . . 9 ⊢ (𝑧 ∈ (𝒫 𝑋 ∩ Fin) → 𝑧 ∈ (𝒫 𝑋 ∩ Fin)) | |
| 23 | fvexd 6876 | . . . . . . . . 9 ⊢ (𝑧 ∈ (𝒫 𝑋 ∩ Fin) → (Σ^‘(𝐹 ↾ 𝑧)) ∈ V) | |
| 24 | 12 | elrnmpt1 5927 | . . . . . . . . 9 ⊢ ((𝑧 ∈ (𝒫 𝑋 ∩ Fin) ∧ (Σ^‘(𝐹 ↾ 𝑧)) ∈ V) → (Σ^‘(𝐹 ↾ 𝑧)) ∈ ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧)))) |
| 25 | 22, 23, 24 | syl2anc 584 | . . . . . . . 8 ⊢ (𝑧 ∈ (𝒫 𝑋 ∩ Fin) → (Σ^‘(𝐹 ↾ 𝑧)) ∈ ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧)))) |
| 26 | 25 | 3ad2ant2 1134 | . . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ ℝ+) ∧ 𝑧 ∈ (𝒫 𝑋 ∩ Fin) ∧ 𝐴 ≤ ((Σ^‘(𝐹 ↾ 𝑧)) +𝑒 𝑥)) → (Σ^‘(𝐹 ↾ 𝑧)) ∈ ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧)))) |
| 27 | simp3 1138 | . . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ ℝ+) ∧ 𝑧 ∈ (𝒫 𝑋 ∩ Fin) ∧ 𝐴 ≤ ((Σ^‘(𝐹 ↾ 𝑧)) +𝑒 𝑥)) → 𝐴 ≤ ((Σ^‘(𝐹 ↾ 𝑧)) +𝑒 𝑥)) | |
| 28 | nfv 1914 | . . . . . . . 8 ⊢ Ⅎ𝑦 𝐴 ≤ ((Σ^‘(𝐹 ↾ 𝑧)) +𝑒 𝑥) | |
| 29 | oveq1 7397 | . . . . . . . . 9 ⊢ (𝑦 = (Σ^‘(𝐹 ↾ 𝑧)) → (𝑦 +𝑒 𝑥) = ((Σ^‘(𝐹 ↾ 𝑧)) +𝑒 𝑥)) | |
| 30 | 29 | breq2d 5122 | . . . . . . . 8 ⊢ (𝑦 = (Σ^‘(𝐹 ↾ 𝑧)) → (𝐴 ≤ (𝑦 +𝑒 𝑥) ↔ 𝐴 ≤ ((Σ^‘(𝐹 ↾ 𝑧)) +𝑒 𝑥))) |
| 31 | 28, 30 | rspce 3580 | . . . . . . 7 ⊢ (((Σ^‘(𝐹 ↾ 𝑧)) ∈ ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))) ∧ 𝐴 ≤ ((Σ^‘(𝐹 ↾ 𝑧)) +𝑒 𝑥)) → ∃𝑦 ∈ ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧)))𝐴 ≤ (𝑦 +𝑒 𝑥)) |
| 32 | 26, 27, 31 | syl2anc 584 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑥 ∈ ℝ+) ∧ 𝑧 ∈ (𝒫 𝑋 ∩ Fin) ∧ 𝐴 ≤ ((Σ^‘(𝐹 ↾ 𝑧)) +𝑒 𝑥)) → ∃𝑦 ∈ ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧)))𝐴 ≤ (𝑦 +𝑒 𝑥)) |
| 33 | 32 | 3exp 1119 | . . . . 5 ⊢ ((𝜑 ∧ 𝑥 ∈ ℝ+) → (𝑧 ∈ (𝒫 𝑋 ∩ Fin) → (𝐴 ≤ ((Σ^‘(𝐹 ↾ 𝑧)) +𝑒 𝑥) → ∃𝑦 ∈ ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧)))𝐴 ≤ (𝑦 +𝑒 𝑥)))) |
| 34 | 17, 21, 33 | rexlimd 3245 | . . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ ℝ+) → (∃𝑧 ∈ (𝒫 𝑋 ∩ Fin)𝐴 ≤ ((Σ^‘(𝐹 ↾ 𝑧)) +𝑒 𝑥) → ∃𝑦 ∈ ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧)))𝐴 ≤ (𝑦 +𝑒 𝑥))) |
| 35 | 16, 34 | mpd 15 | . . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ ℝ+) → ∃𝑦 ∈ ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧)))𝐴 ≤ (𝑦 +𝑒 𝑥)) |
| 36 | 1, 14, 15, 35 | supxrge 45341 | . 2 ⊢ (𝜑 → 𝐴 ≤ sup(ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))), ℝ*, < )) |
| 37 | sge0gerp.x | . . . 4 ⊢ (𝜑 → 𝑋 ∈ 𝑉) | |
| 38 | 37, 3 | sge0sup 46396 | . . 3 ⊢ (𝜑 → (Σ^‘𝐹) = sup(ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))), ℝ*, < )) |
| 39 | 38 | eqcomd 2736 | . 2 ⊢ (𝜑 → sup(ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))), ℝ*, < ) = (Σ^‘𝐹)) |
| 40 | 36, 39 | breqtrd 5136 | 1 ⊢ (𝜑 → 𝐴 ≤ (Σ^‘𝐹)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1086 = wceq 1540 ∈ wcel 2109 ∀wral 3045 ∃wrex 3054 Vcvv 3450 ∩ cin 3916 ⊆ wss 3917 𝒫 cpw 4566 class class class wbr 5110 ↦ cmpt 5191 ran crn 5642 ↾ cres 5643 ⟶wf 6510 ‘cfv 6514 (class class class)co 7390 Fincfn 8921 supcsup 9398 0cc0 11075 +∞cpnf 11212 ℝ*cxr 11214 < clt 11215 ≤ cle 11216 ℝ+crp 12958 +𝑒 cxad 13077 [,]cicc 13316 Σ^csumge0 46367 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2702 ax-rep 5237 ax-sep 5254 ax-nul 5264 ax-pow 5323 ax-pr 5390 ax-un 7714 ax-inf2 9601 ax-cnex 11131 ax-resscn 11132 ax-1cn 11133 ax-icn 11134 ax-addcl 11135 ax-addrcl 11136 ax-mulcl 11137 ax-mulrcl 11138 ax-mulcom 11139 ax-addass 11140 ax-mulass 11141 ax-distr 11142 ax-i2m1 11143 ax-1ne0 11144 ax-1rid 11145 ax-rnegex 11146 ax-rrecex 11147 ax-cnre 11148 ax-pre-lttri 11149 ax-pre-lttrn 11150 ax-pre-ltadd 11151 ax-pre-mulgt0 11152 ax-pre-sup 11153 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2879 df-ne 2927 df-nel 3031 df-ral 3046 df-rex 3055 df-rmo 3356 df-reu 3357 df-rab 3409 df-v 3452 df-sbc 3757 df-csb 3866 df-dif 3920 df-un 3922 df-in 3924 df-ss 3934 df-pss 3937 df-nul 4300 df-if 4492 df-pw 4568 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4875 df-int 4914 df-iun 4960 df-br 5111 df-opab 5173 df-mpt 5192 df-tr 5218 df-id 5536 df-eprel 5541 df-po 5549 df-so 5550 df-fr 5594 df-se 5595 df-we 5596 df-xp 5647 df-rel 5648 df-cnv 5649 df-co 5650 df-dm 5651 df-rn 5652 df-res 5653 df-ima 5654 df-pred 6277 df-ord 6338 df-on 6339 df-lim 6340 df-suc 6341 df-iota 6467 df-fun 6516 df-fn 6517 df-f 6518 df-f1 6519 df-fo 6520 df-f1o 6521 df-fv 6522 df-isom 6523 df-riota 7347 df-ov 7393 df-oprab 7394 df-mpo 7395 df-om 7846 df-1st 7971 df-2nd 7972 df-frecs 8263 df-wrecs 8294 df-recs 8343 df-rdg 8381 df-1o 8437 df-er 8674 df-en 8922 df-dom 8923 df-sdom 8924 df-fin 8925 df-sup 9400 df-oi 9470 df-card 9899 df-pnf 11217 df-mnf 11218 df-xr 11219 df-ltxr 11220 df-le 11221 df-sub 11414 df-neg 11415 df-div 11843 df-nn 12194 df-2 12256 df-3 12257 df-n0 12450 df-z 12537 df-uz 12801 df-rp 12959 df-xadd 13080 df-ico 13319 df-icc 13320 df-fz 13476 df-fzo 13623 df-seq 13974 df-exp 14034 df-hash 14303 df-cj 15072 df-re 15073 df-im 15074 df-sqrt 15208 df-abs 15209 df-clim 15461 df-sum 15660 df-sumge0 46368 |
| This theorem is referenced by: sge0gerpmpt 46407 |
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