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Mirrors > Home > MPE Home > Th. List > harmonicbnd2 | Structured version Visualization version GIF version |
Description: A bound on the harmonic series, as compared to the natural logarithm. (Contributed by Mario Carneiro, 13-Apr-2016.) |
Ref | Expression |
---|---|
harmonicbnd2 | ⊢ (𝑁 ∈ ℕ → (Σ𝑚 ∈ (1...𝑁)(1 / 𝑚) − (log‘(𝑁 + 1))) ∈ ((1 − (log‘2))[,]γ)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | oveq2 7361 | . . . . 5 ⊢ (𝑛 = 𝑁 → (1...𝑛) = (1...𝑁)) | |
2 | 1 | sumeq1d 15578 | . . . 4 ⊢ (𝑛 = 𝑁 → Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) = Σ𝑚 ∈ (1...𝑁)(1 / 𝑚)) |
3 | fvoveq1 7376 | . . . 4 ⊢ (𝑛 = 𝑁 → (log‘(𝑛 + 1)) = (log‘(𝑁 + 1))) | |
4 | 2, 3 | oveq12d 7371 | . . 3 ⊢ (𝑛 = 𝑁 → (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘(𝑛 + 1))) = (Σ𝑚 ∈ (1...𝑁)(1 / 𝑚) − (log‘(𝑁 + 1)))) |
5 | 4 | eleq1d 2822 | . 2 ⊢ (𝑛 = 𝑁 → ((Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘(𝑛 + 1))) ∈ ((1 − (log‘2))[,]γ) ↔ (Σ𝑚 ∈ (1...𝑁)(1 / 𝑚) − (log‘(𝑁 + 1))) ∈ ((1 − (log‘2))[,]γ))) |
6 | eqid 2736 | . . . . 5 ⊢ (𝑛 ∈ ℕ ↦ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘𝑛))) = (𝑛 ∈ ℕ ↦ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘𝑛))) | |
7 | eqid 2736 | . . . . 5 ⊢ (𝑛 ∈ ℕ ↦ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘(𝑛 + 1)))) = (𝑛 ∈ ℕ ↦ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘(𝑛 + 1)))) | |
8 | eqid 2736 | . . . . 5 ⊢ (𝑛 ∈ ℕ ↦ (log‘(1 + (1 / 𝑛)))) = (𝑛 ∈ ℕ ↦ (log‘(1 + (1 / 𝑛)))) | |
9 | oveq2 7361 | . . . . . . 7 ⊢ (𝑘 = 𝑛 → (1 / 𝑘) = (1 / 𝑛)) | |
10 | 9 | oveq2d 7369 | . . . . . . . 8 ⊢ (𝑘 = 𝑛 → (1 + (1 / 𝑘)) = (1 + (1 / 𝑛))) |
11 | 10 | fveq2d 6843 | . . . . . . 7 ⊢ (𝑘 = 𝑛 → (log‘(1 + (1 / 𝑘))) = (log‘(1 + (1 / 𝑛)))) |
12 | 9, 11 | oveq12d 7371 | . . . . . 6 ⊢ (𝑘 = 𝑛 → ((1 / 𝑘) − (log‘(1 + (1 / 𝑘)))) = ((1 / 𝑛) − (log‘(1 + (1 / 𝑛))))) |
13 | 12 | cbvmptv 5216 | . . . . 5 ⊢ (𝑘 ∈ ℕ ↦ ((1 / 𝑘) − (log‘(1 + (1 / 𝑘))))) = (𝑛 ∈ ℕ ↦ ((1 / 𝑛) − (log‘(1 + (1 / 𝑛))))) |
14 | 6, 7, 8, 13 | emcllem7 26335 | . . . 4 ⊢ (γ ∈ ((1 − (log‘2))[,]1) ∧ (𝑛 ∈ ℕ ↦ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘𝑛))):ℕ⟶(γ[,]1) ∧ (𝑛 ∈ ℕ ↦ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘(𝑛 + 1)))):ℕ⟶((1 − (log‘2))[,]γ)) |
15 | 14 | simp3i 1141 | . . 3 ⊢ (𝑛 ∈ ℕ ↦ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘(𝑛 + 1)))):ℕ⟶((1 − (log‘2))[,]γ) |
16 | 7 | fmpt 7054 | . . 3 ⊢ (∀𝑛 ∈ ℕ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘(𝑛 + 1))) ∈ ((1 − (log‘2))[,]γ) ↔ (𝑛 ∈ ℕ ↦ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘(𝑛 + 1)))):ℕ⟶((1 − (log‘2))[,]γ)) |
17 | 15, 16 | mpbir 230 | . 2 ⊢ ∀𝑛 ∈ ℕ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘(𝑛 + 1))) ∈ ((1 − (log‘2))[,]γ) |
18 | 5, 17 | vtoclri 3543 | 1 ⊢ (𝑁 ∈ ℕ → (Σ𝑚 ∈ (1...𝑁)(1 / 𝑚) − (log‘(𝑁 + 1))) ∈ ((1 − (log‘2))[,]γ)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1541 ∈ wcel 2106 ∀wral 3062 ↦ cmpt 5186 ⟶wf 6489 ‘cfv 6493 (class class class)co 7353 1c1 11048 + caddc 11050 − cmin 11381 / cdiv 11808 ℕcn 12149 2c2 12204 [,]cicc 13259 ...cfz 13416 Σcsu 15562 logclog 25894 γcem 26325 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2707 ax-rep 5240 ax-sep 5254 ax-nul 5261 ax-pow 5318 ax-pr 5382 ax-un 7668 ax-inf2 9573 ax-cnex 11103 ax-resscn 11104 ax-1cn 11105 ax-icn 11106 ax-addcl 11107 ax-addrcl 11108 ax-mulcl 11109 ax-mulrcl 11110 ax-mulcom 11111 ax-addass 11112 ax-mulass 11113 ax-distr 11114 ax-i2m1 11115 ax-1ne0 11116 ax-1rid 11117 ax-rnegex 11118 ax-rrecex 11119 ax-cnre 11120 ax-pre-lttri 11121 ax-pre-lttrn 11122 ax-pre-ltadd 11123 ax-pre-mulgt0 11124 ax-pre-sup 11125 ax-addf 11126 ax-mulf 11127 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2887 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rmo 3351 df-reu 3352 df-rab 3406 df-v 3445 df-sbc 3738 df-csb 3854 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-pss 3927 df-nul 4281 df-if 4485 df-pw 4560 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4591 df-uni 4864 df-int 4906 df-iun 4954 df-iin 4955 df-br 5104 df-opab 5166 df-mpt 5187 df-tr 5221 df-id 5529 df-eprel 5535 df-po 5543 df-so 5544 df-fr 5586 df-se 5587 df-we 5588 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-pred 6251 df-ord 6318 df-on 6319 df-lim 6320 df-suc 6321 df-iota 6445 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-isom 6502 df-riota 7309 df-ov 7356 df-oprab 7357 df-mpo 7358 df-of 7613 df-om 7799 df-1st 7917 df-2nd 7918 df-supp 8089 df-frecs 8208 df-wrecs 8239 df-recs 8313 df-rdg 8352 df-1o 8408 df-2o 8409 df-er 8644 df-map 8763 df-pm 8764 df-ixp 8832 df-en 8880 df-dom 8881 df-sdom 8882 df-fin 8883 df-fsupp 9302 df-fi 9343 df-sup 9374 df-inf 9375 df-oi 9442 df-card 9871 df-pnf 11187 df-mnf 11188 df-xr 11189 df-ltxr 11190 df-le 11191 df-sub 11383 df-neg 11384 df-div 11809 df-nn 12150 df-2 12212 df-3 12213 df-4 12214 df-5 12215 df-6 12216 df-7 12217 df-8 12218 df-9 12219 df-n0 12410 df-z 12496 df-dec 12615 df-uz 12760 df-q 12866 df-rp 12908 df-xneg 13025 df-xadd 13026 df-xmul 13027 df-ioo 13260 df-ioc 13261 df-ico 13262 df-icc 13263 df-fz 13417 df-fzo 13560 df-fl 13689 df-mod 13767 df-seq 13899 df-exp 13960 df-fac 14166 df-bc 14195 df-hash 14223 df-shft 14944 df-cj 14976 df-re 14977 df-im 14978 df-sqrt 15112 df-abs 15113 df-limsup 15345 df-clim 15362 df-rlim 15363 df-sum 15563 df-ef 15942 df-sin 15944 df-cos 15945 df-pi 15947 df-struct 17011 df-sets 17028 df-slot 17046 df-ndx 17058 df-base 17076 df-ress 17105 df-plusg 17138 df-mulr 17139 df-starv 17140 df-sca 17141 df-vsca 17142 df-ip 17143 df-tset 17144 df-ple 17145 df-ds 17147 df-unif 17148 df-hom 17149 df-cco 17150 df-rest 17296 df-topn 17297 df-0g 17315 df-gsum 17316 df-topgen 17317 df-pt 17318 df-prds 17321 df-xrs 17376 df-qtop 17381 df-imas 17382 df-xps 17384 df-mre 17458 df-mrc 17459 df-acs 17461 df-mgm 18489 df-sgrp 18538 df-mnd 18549 df-submnd 18594 df-mulg 18864 df-cntz 19088 df-cmn 19555 df-psmet 20773 df-xmet 20774 df-met 20775 df-bl 20776 df-mopn 20777 df-fbas 20778 df-fg 20779 df-cnfld 20782 df-top 22227 df-topon 22244 df-topsp 22266 df-bases 22280 df-cld 22354 df-ntr 22355 df-cls 22356 df-nei 22433 df-lp 22471 df-perf 22472 df-cn 22562 df-cnp 22563 df-haus 22650 df-tx 22897 df-hmeo 23090 df-fil 23181 df-fm 23273 df-flim 23274 df-flf 23275 df-xms 23657 df-ms 23658 df-tms 23659 df-cncf 24225 df-limc 25214 df-dv 25215 df-log 25896 df-em 26326 |
This theorem is referenced by: harmonicbnd3 26341 |
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