| Mathbox for Glauco Siliprandi |
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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 1946 | . . 3 ⊢ Ⅎ𝑥𝜑 | |
| 2 | simpr 490 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑧 ∈ (𝒫 𝑋 ∩ Fin)) → 𝑧 ∈ (𝒫 𝑋 ∩ Fin)) | |
| 3 | sge0gerp.f | . . . . . . . 8 ⊢ (𝜑 → 𝐹:𝑋⟶(0[,]+∞)) | |
| 4 | 3 | adantr 486 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑧 ∈ (𝒫 𝑋 ∩ Fin)) → 𝐹:𝑋⟶(0[,]+∞)) |
| 5 | elinel1 4097 | . . . . . . . . 9 ⊢ (𝑧 ∈ (𝒫 𝑋 ∩ Fin) → 𝑧 ∈ 𝒫 𝑋) | |
| 6 | elpwi 4563 | . . . . . . . . 9 ⊢ (𝑧 ∈ 𝒫 𝑋 → 𝑧 ⊆ 𝑋) | |
| 7 | 5, 6 | syl 18 | . . . . . . . 8 ⊢ (𝑧 ∈ (𝒫 𝑋 ∩ Fin) → 𝑧 ⊆ 𝑋) |
| 8 | 7 | adantl 487 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑧 ∈ (𝒫 𝑋 ∩ Fin)) → 𝑧 ⊆ 𝑋) |
| 9 | 4, 8 | fssresd 6754 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑧 ∈ (𝒫 𝑋 ∩ Fin)) → (𝐹 ↾ 𝑧):𝑧⟶(0[,]+∞)) |
| 10 | 2, 9 | sge0xrcl 47503 | . . . . 5 ⊢ ((𝜑 ∧ 𝑧 ∈ (𝒫 𝑋 ∩ Fin)) → (Σ^‘(𝐹 ↾ 𝑧)) ∈ ℝ*) |
| 11 | 10 | ralrimiva 3154 | . . . 4 ⊢ (𝜑 → ∀𝑧 ∈ (𝒫 𝑋 ∩ Fin)(Σ^‘(𝐹 ↾ 𝑧)) ∈ ℝ*) |
| 12 | eqid 2760 | . . . . 5 ⊢ (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))) = (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))) | |
| 13 | 12 | rnmptss 7128 | . . . 4 ⊢ (∀𝑧 ∈ (𝒫 𝑋 ∩ Fin)(Σ^‘(𝐹 ↾ 𝑧)) ∈ ℝ* → ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))) ⊆ ℝ*) |
| 14 | 11, 13 | syl 18 | . . 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 1946 | . . . . 5 ⊢ Ⅎ𝑧(𝜑 ∧ 𝑥 ∈ ℝ+) | |
| 18 | nfmpt1 5203 | . . . . . . 7 ⊢ Ⅎ𝑧(𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))) | |
| 19 | 18 | nfrn 5935 | . . . . . 6 ⊢ Ⅎ𝑧ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))) |
| 20 | nfv 1946 | . . . . . 6 ⊢ Ⅎ𝑧 𝐴 ≤ (𝑦 +e 𝑥) | |
| 21 | 19, 20 | nfrexw 3310 | . . . . 5 ⊢ Ⅎ𝑧∃𝑦 ∈ ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧)))𝐴 ≤ (𝑦 +e 𝑥) |
| 22 | id 23 | . . . . . . . . 9 ⊢ (𝑧 ∈ (𝒫 𝑋 ∩ Fin) → 𝑧 ∈ (𝒫 𝑋 ∩ Fin)) | |
| 23 | fvexd 6905 | . . . . . . . . 9 ⊢ (𝑧 ∈ (𝒫 𝑋 ∩ Fin) → (Σ^‘(𝐹 ↾ 𝑧)) ∈ V) | |
| 24 | 12 | elrnmpt1 5943 | . . . . . . . . 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 596 | . . . . . . . 8 ⊢ (𝑧 ∈ (𝒫 𝑋 ∩ Fin) → (Σ^‘(𝐹 ↾ 𝑧)) ∈ ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧)))) |
| 26 | 25 | 3ad2ant2 1152 | . . . . . . 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 1156 | . . . . . . 7 ⊢ (((𝜑 ∧ 𝑥 ∈ ℝ+) ∧ 𝑧 ∈ (𝒫 𝑋 ∩ Fin) ∧ 𝐴 ≤ ((Σ^‘(𝐹 ↾ 𝑧)) +e 𝑥)) → 𝐴 ≤ ((Σ^‘(𝐹 ↾ 𝑧)) +e 𝑥)) | |
| 28 | nfv 1946 | . . . . . . . 8 ⊢ Ⅎ𝑦 𝐴 ≤ ((Σ^‘(𝐹 ↾ 𝑧)) +e 𝑥) | |
| 29 | oveq1 7431 | . . . . . . . . 9 ⊢ (𝑦 = (Σ^‘(𝐹 ↾ 𝑧)) → (𝑦 +e 𝑥) = ((Σ^‘(𝐹 ↾ 𝑧)) +e 𝑥)) | |
| 30 | 29 | breq2d 5114 | . . . . . . . 8 ⊢ (𝑦 = (Σ^‘(𝐹 ↾ 𝑧)) → (𝐴 ≤ (𝑦 +e 𝑥) ↔ 𝐴 ≤ ((Σ^‘(𝐹 ↾ 𝑧)) +e 𝑥))) |
| 31 | 28, 30 | rspce 3565 | . . . . . . 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 596 | . . . . . 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 1137 | . . . . 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 3269 | . . . 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 16 | . . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ ℝ+) → ∃𝑦 ∈ ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧)))𝐴 ≤ (𝑦 +e 𝑥)) |
| 36 | 1, 14, 15, 35 | supxrge 46458 | . 2 ⊢ (𝜑 → 𝐴 ≤ sup(ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))), ℝ*, < )) |
| 37 | sge0gerp.x | . . . 4 ⊢ (𝜑 → 𝑋 ∈ 𝑉) | |
| 38 | 37, 3 | sge0sup 47509 | . . 3 ⊢ (𝜑 → (Σ^‘𝐹) = sup(ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))), ℝ*, < )) |
| 39 | 38 | eqcomd 2766 | . 2 ⊢ (𝜑 → sup(ran (𝑧 ∈ (𝒫 𝑋 ∩ Fin) ↦ (Σ^‘(𝐹 ↾ 𝑧))), ℝ*, < ) = (Σ^‘𝐹)) |
| 40 | 36, 39 | breqtrd 5130 | 1 ⊢ (𝜑 → 𝐴 ≤ (Σ^‘𝐹)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∧ w3a 1103 = wceq 1569 ∈ wcel 2144 ∀wral 3076 ∃wrex 3086 Vcvv 3450 ⊆ wss 3896 ∩ cin 4088 𝒫 cpw 4556 class class class wbr 5102 ↦ cmpt 5185 ran crn 5652 ↾ cres 5653 ⟶wf 6539 ‘cfv 6543 (class class class)co 7424 Fincfn 8980 supcsup 9439 0cc0 11207 +∞cpnf 11347 ℝ*cxr 11349 < clt 11350 ≤ cle 11351 ℝ+crp 13127 +e cxad 13246 [,]cicc 13486 Σ^csumge0 47480 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5327 ax-pr 5391 ax-un 7755 ax-inf2 9649 ax-cnex 11263 ax-resscn 11264 ax-1cn 11265 ax-icn 11266 ax-addcl 11267 ax-addrcl 11268 ax-mulcl 11269 ax-mulrcl 11270 ax-mulcom 11271 ax-addass 11272 ax-mulass 11273 ax-distr 11274 ax-i2m1 11275 ax-1ne0 11276 ax-1rid 11277 ax-rnegex 11278 ax-rrecex 11279 ax-cnre 11280 ax-pre-lttri 11281 ax-pre-lttrn 11282 ax-pre-ltadd 11283 ax-pre-mulgt0 11284 ax-pre-sup 11285 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-pss 4013 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-int 4907 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-se 5605 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6307 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6497 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 7381 df-ov 7427 df-oprab 7428 df-mpo 7429 df-om 7882 df-1st 8005 df-2nd 8006 df-frecs 8306 df-wrecs 8337 df-recs 8386 df-rdg 8425 df-1o 8483 df-er 8724 df-en 8981 df-dom 8982 df-sdom 8983 df-fin 8984 df-sup 9441 df-oi 9511 df-card 10027 df-pnf 11352 df-mnf 11353 df-xr 11354 df-ltxr 11355 df-le 11356 df-sub 11550 df-neg 11551 df-div 11981 df-nn 12343 df-2 12412 df-3 12413 df-n0 12614 df-z 12701 df-uz 12973 df-rp 13128 df-xadd 13249 df-ico 13489 df-icc 13490 df-fz 13647 df-fzo 13796 df-seq 14152 df-exp 14212 df-hash 14482 df-cj 15275 df-re 15276 df-im 15277 df-sqrt 15411 df-abs 15412 df-clim 15664 df-sum 15863 df-sumge0 47481 |
| This theorem is used by: sge0gerpmpt 47520 |
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