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| Mirrors > Home > MPE Home > Th. List > Mathboxes > sge0gerpmpt | 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 |
|---|---|
| sge0gerpmpt.xph | ⊢ Ⅎ𝑥𝜑 |
| sge0gerpmpt.a | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
| sge0gerpmpt.b | ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐵 ∈ (0[,]+∞)) |
| sge0gerpmpt.c | ⊢ (𝜑 → 𝐶 ∈ ℝ*) |
| sge0gerpmpt.rp | ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ+) → ∃𝑧 ∈ (𝒫 𝐴 ∩ Fin)𝐶 ≤ ((Σ^‘(𝑥 ∈ 𝑧 ↦ 𝐵)) +𝑒 𝑦)) |
| Ref | Expression |
|---|---|
| sge0gerpmpt | ⊢ (𝜑 → 𝐶 ≤ (Σ^‘(𝑥 ∈ 𝐴 ↦ 𝐵))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sge0gerpmpt.a | . 2 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
| 2 | sge0gerpmpt.xph | . . 3 ⊢ Ⅎ𝑥𝜑 | |
| 3 | sge0gerpmpt.b | . . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → 𝐵 ∈ (0[,]+∞)) | |
| 4 | eqid 2766 | . . 3 ⊢ (𝑥 ∈ 𝐴 ↦ 𝐵) = (𝑥 ∈ 𝐴 ↦ 𝐵) | |
| 5 | 2, 3, 4 | fmptdf 7119 | . 2 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵):𝐴⟶(0[,]+∞)) |
| 6 | sge0gerpmpt.c | . 2 ⊢ (𝜑 → 𝐶 ∈ ℝ*) | |
| 7 | sge0gerpmpt.rp | . . 3 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ+) → ∃𝑧 ∈ (𝒫 𝐴 ∩ Fin)𝐶 ≤ ((Σ^‘(𝑥 ∈ 𝑧 ↦ 𝐵)) +𝑒 𝑦)) | |
| 8 | elpwinss 45810 | . . . . . . . . . . 11 ⊢ (𝑧 ∈ (𝒫 𝐴 ∩ Fin) → 𝑧 ⊆ 𝐴) | |
| 9 | 8 | resmptd 6047 | . . . . . . . . . 10 ⊢ (𝑧 ∈ (𝒫 𝐴 ∩ Fin) → ((𝑥 ∈ 𝐴 ↦ 𝐵) ↾ 𝑧) = (𝑥 ∈ 𝑧 ↦ 𝐵)) |
| 10 | 9 | eqcomd 2772 | . . . . . . . . 9 ⊢ (𝑧 ∈ (𝒫 𝐴 ∩ Fin) → (𝑥 ∈ 𝑧 ↦ 𝐵) = ((𝑥 ∈ 𝐴 ↦ 𝐵) ↾ 𝑧)) |
| 11 | 10 | fveq2d 6892 | . . . . . . . 8 ⊢ (𝑧 ∈ (𝒫 𝐴 ∩ Fin) → (Σ^‘(𝑥 ∈ 𝑧 ↦ 𝐵)) = (Σ^‘((𝑥 ∈ 𝐴 ↦ 𝐵) ↾ 𝑧))) |
| 12 | 11 | oveq1d 7438 | . . . . . . 7 ⊢ (𝑧 ∈ (𝒫 𝐴 ∩ Fin) → ((Σ^‘(𝑥 ∈ 𝑧 ↦ 𝐵)) +𝑒 𝑦) = ((Σ^‘((𝑥 ∈ 𝐴 ↦ 𝐵) ↾ 𝑧)) +𝑒 𝑦)) |
| 13 | 12 | breq2d 5126 | . . . . . 6 ⊢ (𝑧 ∈ (𝒫 𝐴 ∩ Fin) → (𝐶 ≤ ((Σ^‘(𝑥 ∈ 𝑧 ↦ 𝐵)) +𝑒 𝑦) ↔ 𝐶 ≤ ((Σ^‘((𝑥 ∈ 𝐴 ↦ 𝐵) ↾ 𝑧)) +𝑒 𝑦))) |
| 14 | 13 | biimpd 232 | . . . . 5 ⊢ (𝑧 ∈ (𝒫 𝐴 ∩ Fin) → (𝐶 ≤ ((Σ^‘(𝑥 ∈ 𝑧 ↦ 𝐵)) +𝑒 𝑦) → 𝐶 ≤ ((Σ^‘((𝑥 ∈ 𝐴 ↦ 𝐵) ↾ 𝑧)) +𝑒 𝑦))) |
| 15 | 14 | adantl 487 | . . . 4 ⊢ (((𝜑 ∧ 𝑦 ∈ ℝ+) ∧ 𝑧 ∈ (𝒫 𝐴 ∩ Fin)) → (𝐶 ≤ ((Σ^‘(𝑥 ∈ 𝑧 ↦ 𝐵)) +𝑒 𝑦) → 𝐶 ≤ ((Σ^‘((𝑥 ∈ 𝐴 ↦ 𝐵) ↾ 𝑧)) +𝑒 𝑦))) |
| 16 | 15 | reximdva 3181 | . . 3 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ+) → (∃𝑧 ∈ (𝒫 𝐴 ∩ Fin)𝐶 ≤ ((Σ^‘(𝑥 ∈ 𝑧 ↦ 𝐵)) +𝑒 𝑦) → ∃𝑧 ∈ (𝒫 𝐴 ∩ Fin)𝐶 ≤ ((Σ^‘((𝑥 ∈ 𝐴 ↦ 𝐵) ↾ 𝑧)) +𝑒 𝑦))) |
| 17 | 7, 16 | mpd 16 | . 2 ⊢ ((𝜑 ∧ 𝑦 ∈ ℝ+) → ∃𝑧 ∈ (𝒫 𝐴 ∩ Fin)𝐶 ≤ ((Σ^‘((𝑥 ∈ 𝐴 ↦ 𝐵) ↾ 𝑧)) +𝑒 𝑦)) |
| 18 | 1, 5, 6, 17 | sge0gerp 47150 | 1 ⊢ (𝜑 → 𝐶 ≤ (Σ^‘(𝑥 ∈ 𝐴 ↦ 𝐵))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 Ⅎwnf 1816 ∈ wcel 2146 ∃wrex 3092 ∩ cin 3907 𝒫 cpw 4567 class class class wbr 5114 ↦ cmpt 5197 ↾ cres 5668 ‘cfv 6543 (class class class)co 7423 Fincfn 8952 0cc0 11118 +∞cpnf 11258 ℝ*cxr 11260 ≤ cle 11262 ℝ+crp 13034 +𝑒 cxad 13153 [,]cicc 13393 Σ^csumge0 47117 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2738 ax-rep 5243 ax-sep 5262 ax-nul 5274 ax-pow 5341 ax-pr 5409 ax-un 7745 ax-inf2 9620 ax-cnex 11174 ax-resscn 11175 ax-1cn 11176 ax-icn 11177 ax-addcl 11178 ax-addrcl 11179 ax-mulcl 11180 ax-mulrcl 11181 ax-mulcom 11182 ax-addass 11183 ax-mulass 11184 ax-distr 11185 ax-i2m1 11186 ax-1ne0 11187 ax-1rid 11188 ax-rnegex 11189 ax-rrecex 11190 ax-cnre 11191 ax-pre-lttri 11192 ax-pre-lttrn 11193 ax-pre-ltadd 11194 ax-pre-mulgt0 11195 ax-pre-sup 11196 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2570 df-eu 2600 df-clab 2745 df-cleq 2758 df-clel 2841 df-nfc 2915 df-ne 2962 df-nel 3068 df-ral 3083 df-rex 3093 df-rmo 3372 df-reu 3373 df-rab 3420 df-v 3460 df-sbc 3748 df-csb 3857 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-pss 3928 df-nul 4290 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4878 df-int 4918 df-iun 4963 df-br 5115 df-opab 5179 df-mpt 5198 df-tr 5224 df-id 5561 df-eprel 5566 df-po 5574 df-so 5575 df-fr 5619 df-se 5620 df-we 5621 df-xp 5672 df-rel 5673 df-cnv 5674 df-co 5675 df-dm 5676 df-rn 5677 df-res 5678 df-ima 5679 df-pred 6309 df-ord 6370 df-on 6371 df-lim 6372 df-suc 6373 df-iota 6499 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-isom 6552 df-riota 7380 df-ov 7426 df-oprab 7427 df-mpo 7428 df-om 7872 df-1st 7995 df-2nd 7996 df-frecs 8287 df-wrecs 8318 df-recs 8367 df-rdg 8406 df-1o 8462 df-er 8703 df-en 8953 df-dom 8954 df-sdom 8955 df-fin 8956 df-sup 9412 df-oi 9482 df-card 9944 df-pnf 11263 df-mnf 11264 df-xr 11265 df-ltxr 11266 df-le 11267 df-sub 11461 df-neg 11462 df-div 11890 df-nn 12252 df-2 12321 df-3 12322 df-n0 12523 df-z 12610 df-uz 12881 df-rp 13035 df-xadd 13156 df-ico 13396 df-icc 13397 df-fz 13554 df-fzo 13702 df-seq 14058 df-exp 14118 df-hash 14387 df-cj 15176 df-re 15177 df-im 15178 df-sqrt 15312 df-abs 15313 df-clim 15565 df-sum 15764 df-sumge0 47118 |
| This theorem is used by: sge0iunmptlemre 47170 |
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