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| Mirrors > Home > MPE Home > Th. List > isumsup2 | Structured version Visualization version GIF version | ||
| Description: An infinite sum of nonnegative terms is equal to the supremum of the partial sums. (Contributed by Mario Carneiro, 12-Jun-2014.) |
| Ref | Expression |
|---|---|
| isumsup.1 | ⊢ 𝑍 = (ℤ≥‘𝑀) |
| isumsup.2 | ⊢ 𝐺 = seq𝑀( + , 𝐹) |
| isumsup.3 | ⊢ (𝜑 → 𝑀 ∈ ℤ) |
| isumsup.4 | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) = 𝐴) |
| isumsup.5 | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → 𝐴 ∈ ℝ) |
| isumsup.6 | ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → 0 ≤ 𝐴) |
| isumsup.7 | ⊢ (𝜑 → ∃𝑥 ∈ ℝ ∀𝑗 ∈ 𝑍 (𝐺‘𝑗) ≤ 𝑥) |
| Ref | Expression |
|---|---|
| isumsup2 | ⊢ (𝜑 → 𝐺 ⇝ sup(ran 𝐺, ℝ, < )) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | isumsup.1 | . 2 ⊢ 𝑍 = (ℤ≥‘𝑀) | |
| 2 | isumsup.3 | . 2 ⊢ (𝜑 → 𝑀 ∈ ℤ) | |
| 3 | isumsup.4 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) = 𝐴) | |
| 4 | isumsup.5 | . . . . 5 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → 𝐴 ∈ ℝ) | |
| 5 | 3, 4 | eqeltrd 2862 | . . . 4 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → (𝐹‘𝑘) ∈ ℝ) |
| 6 | 1, 2, 5 | serfre 14099 | . . 3 ⊢ (𝜑 → seq𝑀( + , 𝐹):𝑍⟶ℝ) |
| 7 | isumsup.2 | . . . 4 ⊢ 𝐺 = seq𝑀( + , 𝐹) | |
| 8 | 7 | feq1i 6697 | . . 3 ⊢ (𝐺:𝑍⟶ℝ ↔ seq𝑀( + , 𝐹):𝑍⟶ℝ) |
| 9 | 6, 8 | sylibr 237 | . 2 ⊢ (𝜑 → 𝐺:𝑍⟶ℝ) |
| 10 | simpr 490 | . . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → 𝑗 ∈ 𝑍) | |
| 11 | 10, 1 | eleqtrdi 2872 | . . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → 𝑗 ∈ (ℤ≥‘𝑀)) |
| 12 | eluzelz 12901 | . . . . 5 ⊢ (𝑗 ∈ (ℤ≥‘𝑀) → 𝑗 ∈ ℤ) | |
| 13 | uzid 12906 | . . . . 5 ⊢ (𝑗 ∈ ℤ → 𝑗 ∈ (ℤ≥‘𝑗)) | |
| 14 | peano2uz 12954 | . . . . 5 ⊢ (𝑗 ∈ (ℤ≥‘𝑗) → (𝑗 + 1) ∈ (ℤ≥‘𝑗)) | |
| 15 | 11, 12, 13, 14 | 4syl 20 | . . . 4 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝑗 + 1) ∈ (ℤ≥‘𝑗)) |
| 16 | simpl 488 | . . . . 5 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → 𝜑) | |
| 17 | elfzuz 13578 | . . . . . 6 ⊢ (𝑘 ∈ (𝑀...(𝑗 + 1)) → 𝑘 ∈ (ℤ≥‘𝑀)) | |
| 18 | 17, 1 | eleqtrrdi 2873 | . . . . 5 ⊢ (𝑘 ∈ (𝑀...(𝑗 + 1)) → 𝑘 ∈ 𝑍) |
| 19 | 16, 18, 5 | syl2an 608 | . . . 4 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ 𝑘 ∈ (𝑀...(𝑗 + 1))) → (𝐹‘𝑘) ∈ ℝ) |
| 20 | 1 | peano2uzs 12955 | . . . . . . 7 ⊢ (𝑗 ∈ 𝑍 → (𝑗 + 1) ∈ 𝑍) |
| 21 | 20 | adantl 487 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝑗 + 1) ∈ 𝑍) |
| 22 | elfzuz 13578 | . . . . . 6 ⊢ (𝑘 ∈ ((𝑗 + 1)...(𝑗 + 1)) → 𝑘 ∈ (ℤ≥‘(𝑗 + 1))) | |
| 23 | 1 | uztrn2 12910 | . . . . . 6 ⊢ (((𝑗 + 1) ∈ 𝑍 ∧ 𝑘 ∈ (ℤ≥‘(𝑗 + 1))) → 𝑘 ∈ 𝑍) |
| 24 | 21, 22, 23 | syl2an 608 | . . . . 5 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ 𝑘 ∈ ((𝑗 + 1)...(𝑗 + 1))) → 𝑘 ∈ 𝑍) |
| 25 | isumsup.6 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → 0 ≤ 𝐴) | |
| 26 | 25, 3 | breqtrrd 5137 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑘 ∈ 𝑍) → 0 ≤ (𝐹‘𝑘)) |
| 27 | 26 | adantlr 728 | . . . . 5 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ 𝑘 ∈ 𝑍) → 0 ≤ (𝐹‘𝑘)) |
| 28 | 24, 27 | syldan 603 | . . . 4 ⊢ (((𝜑 ∧ 𝑗 ∈ 𝑍) ∧ 𝑘 ∈ ((𝑗 + 1)...(𝑗 + 1))) → 0 ≤ (𝐹‘𝑘)) |
| 29 | 11, 15, 19, 28 | sermono 14102 | . . 3 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (seq𝑀( + , 𝐹)‘𝑗) ≤ (seq𝑀( + , 𝐹)‘(𝑗 + 1))) |
| 30 | 7 | fveq1i 6883 | . . 3 ⊢ (𝐺‘𝑗) = (seq𝑀( + , 𝐹)‘𝑗) |
| 31 | 7 | fveq1i 6883 | . . 3 ⊢ (𝐺‘(𝑗 + 1)) = (seq𝑀( + , 𝐹)‘(𝑗 + 1)) |
| 32 | 29, 30, 31 | 3brtr4g 5143 | . 2 ⊢ ((𝜑 ∧ 𝑗 ∈ 𝑍) → (𝐺‘𝑗) ≤ (𝐺‘(𝑗 + 1))) |
| 33 | isumsup.7 | . 2 ⊢ (𝜑 → ∃𝑥 ∈ ℝ ∀𝑗 ∈ 𝑍 (𝐺‘𝑗) ≤ 𝑥) | |
| 34 | 1, 2, 9, 32, 33 | climsup 15761 | 1 ⊢ (𝜑 → 𝐺 ⇝ sup(ran 𝐺, ℝ, < )) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ∀wral 3078 ∃wrex 3088 class class class wbr 5107 ran crn 5660 ⟶wf 6533 ‘cfv 6537 (class class class)co 7417 supcsup 9414 ℝcr 11127 0cc0 11128 1c1 11129 + caddc 11131 < clt 11271 ≤ cle 11272 ℤcz 12619 ℤ≥cuz 12891 ...cfz 13565 seqcseq 14069 ⇝ cli 15575 |
| 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 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2734 ax-rep 5236 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7740 ax-cnex 11184 ax-resscn 11185 ax-1cn 11186 ax-icn 11187 ax-addcl 11188 ax-addrcl 11189 ax-mulcl 11190 ax-mulrcl 11191 ax-mulcom 11192 ax-addass 11193 ax-mulass 11194 ax-distr 11195 ax-i2m1 11196 ax-1ne0 11197 ax-1rid 11198 ax-rnegex 11199 ax-rrecex 11200 ax-cnre 11201 ax-pre-lttri 11202 ax-pre-lttrn 11203 ax-pre-ltadd 11204 ax-pre-mulgt0 11205 ax-pre-sup 11206 |
| 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 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-rmo 3367 df-reu 3368 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-iun 4956 df-br 5108 df-opab 5172 df-mpt 5191 df-tr 5217 df-id 5554 df-eprel 5559 df-po 5567 df-so 5568 df-fr 5612 df-we 5614 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7374 df-ov 7420 df-oprab 7421 df-mpo 7422 df-om 7867 df-1st 7990 df-2nd 7991 df-frecs 8284 df-wrecs 8315 df-recs 8364 df-rdg 8403 df-er 8700 df-en 8957 df-dom 8958 df-sdom 8959 df-sup 9416 df-pnf 11273 df-mnf 11274 df-xr 11275 df-ltxr 11276 df-le 11277 df-sub 11471 df-neg 11472 df-div 11900 df-nn 12262 df-2 12331 df-3 12332 df-n0 12533 df-z 12620 df-uz 12892 df-rp 13047 df-fz 13566 df-seq 14070 df-exp 14130 df-cj 15190 df-re 15191 df-im 15192 df-sqrt 15326 df-abs 15327 df-clim 15579 |
| This theorem is used by: isumsup 15940 ovoliunlem1 25736 ioombl1lem4 25795 uniioombllem2 25817 uniioombllem6 25822 sge0isum 47263 |
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