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| Mirrors > Home > MPE Home > Th. List > harmonicbnd | Structured version Visualization version GIF version | ||
| Description: A bound on the harmonic series, as compared to the natural logarithm. (Contributed by Mario Carneiro, 9-Apr-2016.) |
| Ref | Expression |
|---|---|
| harmonicbnd | ⊢ (𝑁 ∈ ℕ → (Σ𝑚 ∈ (1...𝑁)(1 / 𝑚) − (log‘𝑁)) ∈ (γ[,]1)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | oveq2 7367 | . . . . 5 ⊢ (𝑛 = 𝑁 → (1...𝑛) = (1...𝑁)) | |
| 2 | 1 | sumeq1d 15657 | . . . 4 ⊢ (𝑛 = 𝑁 → Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) = Σ𝑚 ∈ (1...𝑁)(1 / 𝑚)) |
| 3 | fveq2 6830 | . . . 4 ⊢ (𝑛 = 𝑁 → (log‘𝑛) = (log‘𝑁)) | |
| 4 | 2, 3 | oveq12d 7377 | . . 3 ⊢ (𝑛 = 𝑁 → (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘𝑛)) = (Σ𝑚 ∈ (1...𝑁)(1 / 𝑚) − (log‘𝑁))) |
| 5 | 4 | eleq1d 2826 | . 2 ⊢ (𝑛 = 𝑁 → ((Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘𝑛)) ∈ (γ[,]1) ↔ (Σ𝑚 ∈ (1...𝑁)(1 / 𝑚) − (log‘𝑁)) ∈ (γ[,]1))) |
| 6 | eqid 2741 | . . . . 5 ⊢ (𝑛 ∈ ℕ ↦ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘𝑛))) = (𝑛 ∈ ℕ ↦ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘𝑛))) | |
| 7 | eqid 2741 | . . . . 5 ⊢ (𝑛 ∈ ℕ ↦ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘(𝑛 + 1)))) = (𝑛 ∈ ℕ ↦ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘(𝑛 + 1)))) | |
| 8 | eqid 2741 | . . . . 5 ⊢ (𝑛 ∈ ℕ ↦ (log‘(1 + (1 / 𝑛)))) = (𝑛 ∈ ℕ ↦ (log‘(1 + (1 / 𝑛)))) | |
| 9 | oveq2 7367 | . . . . . . 7 ⊢ (𝑘 = 𝑛 → (1 / 𝑘) = (1 / 𝑛)) | |
| 10 | 9 | oveq2d 7375 | . . . . . . . 8 ⊢ (𝑘 = 𝑛 → (1 + (1 / 𝑘)) = (1 + (1 / 𝑛))) |
| 11 | 10 | fveq2d 6834 | . . . . . . 7 ⊢ (𝑘 = 𝑛 → (log‘(1 + (1 / 𝑘))) = (log‘(1 + (1 / 𝑛)))) |
| 12 | 9, 11 | oveq12d 7377 | . . . . . 6 ⊢ (𝑘 = 𝑛 → ((1 / 𝑘) − (log‘(1 + (1 / 𝑘)))) = ((1 / 𝑛) − (log‘(1 + (1 / 𝑛))))) |
| 13 | 12 | cbvmptv 5178 | . . . . 5 ⊢ (𝑘 ∈ ℕ ↦ ((1 / 𝑘) − (log‘(1 + (1 / 𝑘))))) = (𝑛 ∈ ℕ ↦ ((1 / 𝑛) − (log‘(1 + (1 / 𝑛))))) |
| 14 | 6, 7, 8, 13 | emcllem7 26986 | . . . 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 | simp2i 1147 | . . 3 ⊢ (𝑛 ∈ ℕ ↦ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘𝑛))):ℕ⟶(γ[,]1) |
| 16 | 6 | fmpt 7054 | . . 3 ⊢ (∀𝑛 ∈ ℕ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘𝑛)) ∈ (γ[,]1) ↔ (𝑛 ∈ ℕ ↦ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘𝑛))):ℕ⟶(γ[,]1)) |
| 17 | 15, 16 | mpbir 233 | . 2 ⊢ ∀𝑛 ∈ ℕ (Σ𝑚 ∈ (1...𝑛)(1 / 𝑚) − (log‘𝑛)) ∈ (γ[,]1) |
| 18 | 5, 17 | vtoclri 3529 | 1 ⊢ (𝑁 ∈ ℕ → (Σ𝑚 ∈ (1...𝑁)(1 / 𝑚) − (log‘𝑁)) ∈ (γ[,]1)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1548 ∈ wcel 2121 ∀wral 3055 ↦ cmpt 5155 ⟶wf 6484 ‘cfv 6488 (class class class)co 7359 1c1 11035 + caddc 11037 − cmin 11373 / cdiv 11803 ℕcn 12169 2c2 12231 [,]cicc 13296 ...cfz 13456 Σcsu 15643 logclog 26539 γcem 26976 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-10 2154 ax-11 2170 ax-12 2191 ax-ext 2713 ax-rep 5201 ax-sep 5220 ax-nul 5230 ax-pow 5296 ax-pr 5364 ax-un 7681 ax-inf2 9557 ax-cnex 11090 ax-resscn 11091 ax-1cn 11092 ax-icn 11093 ax-addcl 11094 ax-addrcl 11095 ax-mulcl 11096 ax-mulrcl 11097 ax-mulcom 11098 ax-addass 11099 ax-mulass 11100 ax-distr 11101 ax-i2m1 11102 ax-1ne0 11103 ax-1rid 11104 ax-rnegex 11105 ax-rrecex 11106 ax-cnre 11107 ax-pre-lttri 11108 ax-pre-lttrn 11109 ax-pre-ltadd 11110 ax-pre-mulgt0 11111 ax-pre-sup 11112 ax-addf 11113 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3or 1094 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-nf 1792 df-sb 2075 df-mo 2545 df-eu 2575 df-clab 2720 df-cleq 2733 df-clel 2816 df-nfc 2890 df-ne 2937 df-nel 3041 df-ral 3056 df-rex 3066 df-rmo 3346 df-reu 3347 df-rab 3394 df-v 3435 df-sbc 3725 df-csb 3833 df-dif 3887 df-un 3889 df-in 3891 df-ss 3901 df-pss 3904 df-nul 4264 df-if 4457 df-pw 4533 df-sn 4558 df-pr 4560 df-tp 4562 df-op 4564 df-uni 4841 df-int 4880 df-iun 4925 df-iin 4926 df-br 5075 df-opab 5137 df-mpt 5156 df-tr 5182 df-id 5515 df-eprel 5520 df-po 5528 df-so 5529 df-fr 5573 df-se 5574 df-we 5575 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-pred 6255 df-ord 6316 df-on 6317 df-lim 6318 df-suc 6319 df-iota 6444 df-fun 6490 df-fn 6491 df-f 6492 df-f1 6493 df-fo 6494 df-f1o 6495 df-fv 6496 df-isom 6497 df-riota 7316 df-ov 7362 df-oprab 7363 df-mpo 7364 df-of 7623 df-om 7810 df-1st 7933 df-2nd 7934 df-supp 8103 df-frecs 8224 df-wrecs 8255 df-recs 8304 df-rdg 8343 df-1o 8399 df-2o 8400 df-er 8637 df-map 8769 df-pm 8770 df-ixp 8840 df-en 8888 df-dom 8889 df-sdom 8890 df-fin 8891 df-fsupp 9269 df-fi 9318 df-sup 9349 df-inf 9350 df-oi 9419 df-card 9858 df-pnf 11177 df-mnf 11178 df-xr 11179 df-ltxr 11180 df-le 11181 df-sub 11375 df-neg 11376 df-div 11804 df-nn 12170 df-2 12239 df-3 12240 df-4 12241 df-5 12242 df-6 12243 df-7 12244 df-8 12245 df-9 12246 df-n0 12433 df-z 12520 df-dec 12640 df-uz 12784 df-q 12894 df-rp 12938 df-xneg 13058 df-xadd 13059 df-xmul 13060 df-ioo 13297 df-ioc 13298 df-ico 13299 df-icc 13300 df-fz 13457 df-fzo 13604 df-fl 13746 df-mod 13824 df-seq 13959 df-exp 14019 df-fac 14231 df-bc 14260 df-hash 14288 df-shft 15024 df-cj 15056 df-re 15057 df-im 15058 df-sqrt 15192 df-abs 15193 df-limsup 15428 df-clim 15445 df-rlim 15446 df-sum 15644 df-ef 16027 df-sin 16029 df-cos 16030 df-pi 16032 df-struct 17112 df-sets 17129 df-slot 17147 df-ndx 17159 df-base 17175 df-ress 17196 df-plusg 17228 df-mulr 17229 df-starv 17230 df-sca 17231 df-vsca 17232 df-ip 17233 df-tset 17234 df-ple 17235 df-ds 17237 df-unif 17238 df-hom 17239 df-cco 17240 df-rest 17380 df-topn 17381 df-0g 17399 df-gsum 17400 df-topgen 17401 df-pt 17402 df-prds 17405 df-xrs 17461 df-qtop 17466 df-imas 17467 df-xps 17469 df-mre 17543 df-mrc 17544 df-acs 17546 df-mgm 18603 df-sgrp 18682 df-mnd 18698 df-submnd 18747 df-mulg 19039 df-cntz 19286 df-cmn 19751 df-psmet 21342 df-xmet 21343 df-met 21344 df-bl 21345 df-mopn 21346 df-fbas 21347 df-fg 21348 df-cnfld 21351 df-top 22880 df-topon 22897 df-topsp 22919 df-bases 22932 df-cld 23005 df-ntr 23006 df-cls 23007 df-nei 23084 df-lp 23122 df-perf 23123 df-cn 23213 df-cnp 23214 df-haus 23301 df-tx 23548 df-hmeo 23741 df-fil 23832 df-fm 23924 df-flim 23925 df-flf 23926 df-xms 24306 df-ms 24307 df-tms 24308 df-cncf 24866 df-limc 25854 df-dv 25855 df-log 26541 df-em 26977 |
| This theorem is referenced by: harmonicubnd 26994 harmonicbnd4 26995 pntpbnd2 27571 |
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