Mathbox for Kunhao Zheng |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > young2d | Structured version Visualization version GIF version |
Description: Young's inequality for 𝑛 = 2, a direct application of amgmw2d 46508. (Contributed by Kunhao Zheng, 6-Jul-2021.) |
Ref | Expression |
---|---|
young2d.0 | ⊢ (𝜑 → 𝐴 ∈ ℝ+) |
young2d.1 | ⊢ (𝜑 → 𝑃 ∈ ℝ+) |
young2d.2 | ⊢ (𝜑 → 𝐵 ∈ ℝ+) |
young2d.3 | ⊢ (𝜑 → 𝑄 ∈ ℝ+) |
young2d.4 | ⊢ (𝜑 → ((1 / 𝑃) + (1 / 𝑄)) = 1) |
Ref | Expression |
---|---|
young2d | ⊢ (𝜑 → (𝐴 · 𝐵) ≤ (((𝐴↑𝑐𝑃) / 𝑃) + ((𝐵↑𝑐𝑄) / 𝑄))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | young2d.0 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ ℝ+) | |
2 | young2d.1 | . . . . 5 ⊢ (𝜑 → 𝑃 ∈ ℝ+) | |
3 | 2 | rpred 12772 | . . . 4 ⊢ (𝜑 → 𝑃 ∈ ℝ) |
4 | 1, 3 | rpcxpcld 25887 | . . 3 ⊢ (𝜑 → (𝐴↑𝑐𝑃) ∈ ℝ+) |
5 | 2 | rpreccld 12782 | . . 3 ⊢ (𝜑 → (1 / 𝑃) ∈ ℝ+) |
6 | young2d.2 | . . . 4 ⊢ (𝜑 → 𝐵 ∈ ℝ+) | |
7 | young2d.3 | . . . . 5 ⊢ (𝜑 → 𝑄 ∈ ℝ+) | |
8 | 7 | rpred 12772 | . . . 4 ⊢ (𝜑 → 𝑄 ∈ ℝ) |
9 | 6, 8 | rpcxpcld 25887 | . . 3 ⊢ (𝜑 → (𝐵↑𝑐𝑄) ∈ ℝ+) |
10 | 7 | rpreccld 12782 | . . 3 ⊢ (𝜑 → (1 / 𝑄) ∈ ℝ+) |
11 | young2d.4 | . . 3 ⊢ (𝜑 → ((1 / 𝑃) + (1 / 𝑄)) = 1) | |
12 | 4, 5, 9, 10, 11 | amgmw2d 46508 | . 2 ⊢ (𝜑 → (((𝐴↑𝑐𝑃)↑𝑐(1 / 𝑃)) · ((𝐵↑𝑐𝑄)↑𝑐(1 / 𝑄))) ≤ (((𝐴↑𝑐𝑃) · (1 / 𝑃)) + ((𝐵↑𝑐𝑄) · (1 / 𝑄)))) |
13 | 2 | rpcnd 12774 | . . . . . 6 ⊢ (𝜑 → 𝑃 ∈ ℂ) |
14 | 2 | rpne0d 12777 | . . . . . 6 ⊢ (𝜑 → 𝑃 ≠ 0) |
15 | 13, 14 | recidd 11746 | . . . . 5 ⊢ (𝜑 → (𝑃 · (1 / 𝑃)) = 1) |
16 | 15 | oveq2d 7291 | . . . 4 ⊢ (𝜑 → (𝐴↑𝑐(𝑃 · (1 / 𝑃))) = (𝐴↑𝑐1)) |
17 | 13, 14 | reccld 11744 | . . . . 5 ⊢ (𝜑 → (1 / 𝑃) ∈ ℂ) |
18 | 1, 3, 17 | cxpmuld 25891 | . . . 4 ⊢ (𝜑 → (𝐴↑𝑐(𝑃 · (1 / 𝑃))) = ((𝐴↑𝑐𝑃)↑𝑐(1 / 𝑃))) |
19 | 1 | rpcnd 12774 | . . . . 5 ⊢ (𝜑 → 𝐴 ∈ ℂ) |
20 | 19 | cxp1d 25861 | . . . 4 ⊢ (𝜑 → (𝐴↑𝑐1) = 𝐴) |
21 | 16, 18, 20 | 3eqtr3d 2786 | . . 3 ⊢ (𝜑 → ((𝐴↑𝑐𝑃)↑𝑐(1 / 𝑃)) = 𝐴) |
22 | 7 | rpcnd 12774 | . . . . . 6 ⊢ (𝜑 → 𝑄 ∈ ℂ) |
23 | 7 | rpne0d 12777 | . . . . . 6 ⊢ (𝜑 → 𝑄 ≠ 0) |
24 | 22, 23 | recidd 11746 | . . . . 5 ⊢ (𝜑 → (𝑄 · (1 / 𝑄)) = 1) |
25 | 24 | oveq2d 7291 | . . . 4 ⊢ (𝜑 → (𝐵↑𝑐(𝑄 · (1 / 𝑄))) = (𝐵↑𝑐1)) |
26 | 22, 23 | reccld 11744 | . . . . 5 ⊢ (𝜑 → (1 / 𝑄) ∈ ℂ) |
27 | 6, 8, 26 | cxpmuld 25891 | . . . 4 ⊢ (𝜑 → (𝐵↑𝑐(𝑄 · (1 / 𝑄))) = ((𝐵↑𝑐𝑄)↑𝑐(1 / 𝑄))) |
28 | 6 | rpcnd 12774 | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ ℂ) |
29 | 28 | cxp1d 25861 | . . . 4 ⊢ (𝜑 → (𝐵↑𝑐1) = 𝐵) |
30 | 25, 27, 29 | 3eqtr3d 2786 | . . 3 ⊢ (𝜑 → ((𝐵↑𝑐𝑄)↑𝑐(1 / 𝑄)) = 𝐵) |
31 | 21, 30 | oveq12d 7293 | . 2 ⊢ (𝜑 → (((𝐴↑𝑐𝑃)↑𝑐(1 / 𝑃)) · ((𝐵↑𝑐𝑄)↑𝑐(1 / 𝑄))) = (𝐴 · 𝐵)) |
32 | 4 | rpcnd 12774 | . . . . 5 ⊢ (𝜑 → (𝐴↑𝑐𝑃) ∈ ℂ) |
33 | 32, 13, 14 | divrecd 11754 | . . . 4 ⊢ (𝜑 → ((𝐴↑𝑐𝑃) / 𝑃) = ((𝐴↑𝑐𝑃) · (1 / 𝑃))) |
34 | 9 | rpcnd 12774 | . . . . 5 ⊢ (𝜑 → (𝐵↑𝑐𝑄) ∈ ℂ) |
35 | 34, 22, 23 | divrecd 11754 | . . . 4 ⊢ (𝜑 → ((𝐵↑𝑐𝑄) / 𝑄) = ((𝐵↑𝑐𝑄) · (1 / 𝑄))) |
36 | 33, 35 | oveq12d 7293 | . . 3 ⊢ (𝜑 → (((𝐴↑𝑐𝑃) / 𝑃) + ((𝐵↑𝑐𝑄) / 𝑄)) = (((𝐴↑𝑐𝑃) · (1 / 𝑃)) + ((𝐵↑𝑐𝑄) · (1 / 𝑄)))) |
37 | 36 | eqcomd 2744 | . 2 ⊢ (𝜑 → (((𝐴↑𝑐𝑃) · (1 / 𝑃)) + ((𝐵↑𝑐𝑄) · (1 / 𝑄))) = (((𝐴↑𝑐𝑃) / 𝑃) + ((𝐵↑𝑐𝑄) / 𝑄))) |
38 | 12, 31, 37 | 3brtr3d 5105 | 1 ⊢ (𝜑 → (𝐴 · 𝐵) ≤ (((𝐴↑𝑐𝑃) / 𝑃) + ((𝐵↑𝑐𝑄) / 𝑄))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1539 ∈ wcel 2106 class class class wbr 5074 (class class class)co 7275 1c1 10872 + caddc 10874 · cmul 10876 ≤ cle 11010 / cdiv 11632 ℝ+crp 12730 ↑𝑐ccxp 25711 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 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 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-inf2 9399 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 ax-pre-sup 10949 ax-addf 10950 ax-mulf 10951 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-rmo 3071 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-tp 4566 df-op 4568 df-uni 4840 df-int 4880 df-iun 4926 df-iin 4927 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-se 5545 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-isom 6442 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-of 7533 df-om 7713 df-1st 7831 df-2nd 7832 df-supp 7978 df-tpos 8042 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-1o 8297 df-2o 8298 df-er 8498 df-map 8617 df-pm 8618 df-ixp 8686 df-en 8734 df-dom 8735 df-sdom 8736 df-fin 8737 df-fsupp 9129 df-fi 9170 df-sup 9201 df-inf 9202 df-oi 9269 df-card 9697 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-div 11633 df-nn 11974 df-2 12036 df-3 12037 df-4 12038 df-5 12039 df-6 12040 df-7 12041 df-8 12042 df-9 12043 df-n0 12234 df-z 12320 df-dec 12438 df-uz 12583 df-q 12689 df-rp 12731 df-xneg 12848 df-xadd 12849 df-xmul 12850 df-ioo 13083 df-ioc 13084 df-ico 13085 df-icc 13086 df-fz 13240 df-fzo 13383 df-fl 13512 df-mod 13590 df-seq 13722 df-exp 13783 df-fac 13988 df-bc 14017 df-hash 14045 df-word 14218 df-concat 14274 df-s1 14301 df-s2 14561 df-shft 14778 df-cj 14810 df-re 14811 df-im 14812 df-sqrt 14946 df-abs 14947 df-limsup 15180 df-clim 15197 df-rlim 15198 df-sum 15398 df-ef 15777 df-sin 15779 df-cos 15780 df-pi 15782 df-struct 16848 df-sets 16865 df-slot 16883 df-ndx 16895 df-base 16913 df-ress 16942 df-plusg 16975 df-mulr 16976 df-starv 16977 df-sca 16978 df-vsca 16979 df-ip 16980 df-tset 16981 df-ple 16982 df-ds 16984 df-unif 16985 df-hom 16986 df-cco 16987 df-rest 17133 df-topn 17134 df-0g 17152 df-gsum 17153 df-topgen 17154 df-pt 17155 df-prds 17158 df-xrs 17213 df-qtop 17218 df-imas 17219 df-xps 17221 df-mre 17295 df-mrc 17296 df-acs 17298 df-mgm 18326 df-sgrp 18375 df-mnd 18386 df-mhm 18430 df-submnd 18431 df-grp 18580 df-minusg 18581 df-mulg 18701 df-subg 18752 df-ghm 18832 df-gim 18875 df-cntz 18923 df-cmn 19388 df-abl 19389 df-mgp 19721 df-ur 19738 df-ring 19785 df-cring 19786 df-oppr 19862 df-dvdsr 19883 df-unit 19884 df-invr 19914 df-dvr 19925 df-drng 19993 df-subrg 20022 df-psmet 20589 df-xmet 20590 df-met 20591 df-bl 20592 df-mopn 20593 df-fbas 20594 df-fg 20595 df-cnfld 20598 df-refld 20810 df-top 22043 df-topon 22060 df-topsp 22082 df-bases 22096 df-cld 22170 df-ntr 22171 df-cls 22172 df-nei 22249 df-lp 22287 df-perf 22288 df-cn 22378 df-cnp 22379 df-haus 22466 df-cmp 22538 df-tx 22713 df-hmeo 22906 df-fil 22997 df-fm 23089 df-flim 23090 df-flf 23091 df-xms 23473 df-ms 23474 df-tms 23475 df-cncf 24041 df-limc 25030 df-dv 25031 df-log 25712 df-cxp 25713 |
This theorem is referenced by: (None) |
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