| Mathbox for Glauco Siliprandi |
< Previous
Next >
Nearby theorems |
||
| 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 4152 | . . . . . . . . 9 ⊢ (𝑧 ∈ (𝒫 𝑋 ∩ Fin) → 𝑧 ∈ 𝒫 𝑋) | |
| 6 | elpwi 4558 | . . . . . . . . 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 6691 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑧 ∈ (𝒫 𝑋 ∩ Fin)) → (𝐹 ↾ 𝑧):𝑧⟶(0[,]+∞)) |
| 10 | 2, 9 | sge0xrcl 46366 | . . . . 5 ⊢ ((𝜑 ∧ 𝑧 ∈ (𝒫 𝑋 ∩ Fin)) → (Σ^‘(𝐹 ↾ 𝑧)) ∈ ℝ*) |
| 11 | 10 | ralrimiva 3121 | . . . 4 ⊢ (𝜑 → ∀𝑧 ∈ (𝒫 𝑋 ∩ Fin)(Σ^‘(𝐹 ↾ 𝑧)) ∈ ℝ*) |
| 12 | eqid 2729 | . . . . 5 ⊢ (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))) = (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))) | |
| 13 | 12 | rnmptss 7057 | . . . 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 5191 | . . . . . . 7 ⊢ Ⅎ𝑧(𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))) | |
| 19 | 18 | nfrn 5894 | . . . . . 6 ⊢ Ⅎ𝑧ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))) |
| 20 | nfv 1914 | . . . . . 6 ⊢ Ⅎ𝑧 𝐴 ≤ (𝑦 +𝑒 𝑥) | |
| 21 | 19, 20 | nfrexw 3277 | . . . . 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 6837 | . . . . . . . . 9 ⊢ (𝑧 ∈ (𝒫 𝑋 ∩ Fin) → (Σ^‘(𝐹 ↾ 𝑧)) ∈ V) | |
| 24 | 12 | elrnmpt1 5902 | . . . . . . . . 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 7356 | . . . . . . . . 9 ⊢ (𝑦 = (Σ^‘(𝐹 ↾ 𝑧)) → (𝑦 +𝑒 𝑥) = ((Σ^‘(𝐹 ↾ 𝑧)) +𝑒 𝑥)) | |
| 30 | 29 | breq2d 5104 | . . . . . . . 8 ⊢ (𝑦 = (Σ^‘(𝐹 ↾ 𝑧)) → (𝐴 ≤ (𝑦 +𝑒 𝑥) ↔ 𝐴 ≤ ((Σ^‘(𝐹 ↾ 𝑧)) +𝑒 𝑥))) |
| 31 | 28, 30 | rspce 3566 | . . . . . . 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 3236 | . . . 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 45318 | . 2 ⊢ (𝜑 → 𝐴 ≤ sup(ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))), ℝ*, < )) |
| 37 | sge0gerp.x | . . . 4 ⊢ (𝜑 → 𝑋 ∈ 𝑉) | |
| 38 | 37, 3 | sge0sup 46372 | . . 3 ⊢ (𝜑 → (Σ^‘𝐹) = sup(ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))), ℝ*, < )) |
| 39 | 38 | eqcomd 2735 | . 2 ⊢ (𝜑 → sup(ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))), ℝ*, < ) = (Σ^‘𝐹)) |
| 40 | 36, 39 | breqtrd 5118 | 1 ⊢ (𝜑 → 𝐴 ≤ (Σ^‘𝐹)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1086 = wceq 1540 ∈ wcel 2109 ∀wral 3044 ∃wrex 3053 Vcvv 3436 ∩ cin 3902 ⊆ wss 3903 𝒫 cpw 4551 class class class wbr 5092 ↦ cmpt 5173 ran crn 5620 ↾ cres 5621 ⟶wf 6478 ‘cfv 6482 (class class class)co 7349 Fincfn 8872 supcsup 9330 0cc0 11009 +∞cpnf 11146 ℝ*cxr 11148 < clt 11149 ≤ cle 11150 ℝ+crp 12893 +𝑒 cxad 13012 [,]cicc 13251 Σ^csumge0 46343 |
| 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 2701 ax-rep 5218 ax-sep 5235 ax-nul 5245 ax-pow 5304 ax-pr 5371 ax-un 7671 ax-inf2 9537 ax-cnex 11065 ax-resscn 11066 ax-1cn 11067 ax-icn 11068 ax-addcl 11069 ax-addrcl 11070 ax-mulcl 11071 ax-mulrcl 11072 ax-mulcom 11073 ax-addass 11074 ax-mulass 11075 ax-distr 11076 ax-i2m1 11077 ax-1ne0 11078 ax-1rid 11079 ax-rnegex 11080 ax-rrecex 11081 ax-cnre 11082 ax-pre-lttri 11083 ax-pre-lttrn 11084 ax-pre-ltadd 11085 ax-pre-mulgt0 11086 ax-pre-sup 11087 |
| 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 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-rmo 3343 df-reu 3344 df-rab 3395 df-v 3438 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-pss 3923 df-nul 4285 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-op 4584 df-uni 4859 df-int 4897 df-iun 4943 df-br 5093 df-opab 5155 df-mpt 5174 df-tr 5200 df-id 5514 df-eprel 5519 df-po 5527 df-so 5528 df-fr 5572 df-se 5573 df-we 5574 df-xp 5625 df-rel 5626 df-cnv 5627 df-co 5628 df-dm 5629 df-rn 5630 df-res 5631 df-ima 5632 df-pred 6249 df-ord 6310 df-on 6311 df-lim 6312 df-suc 6313 df-iota 6438 df-fun 6484 df-fn 6485 df-f 6486 df-f1 6487 df-fo 6488 df-f1o 6489 df-fv 6490 df-isom 6491 df-riota 7306 df-ov 7352 df-oprab 7353 df-mpo 7354 df-om 7800 df-1st 7924 df-2nd 7925 df-frecs 8214 df-wrecs 8245 df-recs 8294 df-rdg 8332 df-1o 8388 df-er 8625 df-en 8873 df-dom 8874 df-sdom 8875 df-fin 8876 df-sup 9332 df-oi 9402 df-card 9835 df-pnf 11151 df-mnf 11152 df-xr 11153 df-ltxr 11154 df-le 11155 df-sub 11349 df-neg 11350 df-div 11778 df-nn 12129 df-2 12191 df-3 12192 df-n0 12385 df-z 12472 df-uz 12736 df-rp 12894 df-xadd 13015 df-ico 13254 df-icc 13255 df-fz 13411 df-fzo 13558 df-seq 13909 df-exp 13969 df-hash 14238 df-cj 15006 df-re 15007 df-im 15008 df-sqrt 15142 df-abs 15143 df-clim 15395 df-sum 15594 df-sumge0 46344 |
| This theorem is referenced by: sge0gerpmpt 46383 |
| Copyright terms: Public domain | W3C validator |