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| Mirrors > Home > MPE Home > Th. List > itg2le | Structured version Visualization version GIF version | ||
| Description: If one function dominates another, then the integral of the larger is also larger. (Contributed by Mario Carneiro, 28-Jun-2014.) |
| Ref | Expression |
|---|---|
| itg2le | ⊢ ((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞) ∧ 𝐹 ∘r ≤ 𝐺) → (∫2‘𝐹) ≤ (∫2‘𝐺)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | reex 11179 | . . . . . . . . . 10 ⊢ ℝ ∈ V | |
| 2 | 1 | a1i 11 | . . . . . . . . 9 ⊢ (((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) ∧ ℎ ∈ dom ∫1) → ℝ ∈ V) |
| 3 | i1ff 25796 | . . . . . . . . . . 11 ⊢ (ℎ ∈ dom ∫1 → ℎ:ℝ⟶ℝ) | |
| 4 | 3 | adantl 486 | . . . . . . . . . 10 ⊢ (((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) ∧ ℎ ∈ dom ∫1) → ℎ:ℝ⟶ℝ) |
| 5 | ressxr 11241 | . . . . . . . . . 10 ⊢ ℝ ⊆ ℝ* | |
| 6 | fss 6712 | . . . . . . . . . 10 ⊢ ((ℎ:ℝ⟶ℝ ∧ ℝ ⊆ ℝ*) → ℎ:ℝ⟶ℝ*) | |
| 7 | 4, 5, 6 | sylancl 597 | . . . . . . . . 9 ⊢ (((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) ∧ ℎ ∈ dom ∫1) → ℎ:ℝ⟶ℝ*) |
| 8 | simpll 778 | . . . . . . . . . 10 ⊢ (((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) ∧ ℎ ∈ dom ∫1) → 𝐹:ℝ⟶(0[,]+∞)) | |
| 9 | iccssxr 13448 | . . . . . . . . . 10 ⊢ (0[,]+∞) ⊆ ℝ* | |
| 10 | fss 6712 | . . . . . . . . . 10 ⊢ ((𝐹:ℝ⟶(0[,]+∞) ∧ (0[,]+∞) ⊆ ℝ*) → 𝐹:ℝ⟶ℝ*) | |
| 11 | 8, 9, 10 | sylancl 597 | . . . . . . . . 9 ⊢ (((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) ∧ ℎ ∈ dom ∫1) → 𝐹:ℝ⟶ℝ*) |
| 12 | simplr 780 | . . . . . . . . . 10 ⊢ (((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) ∧ ℎ ∈ dom ∫1) → 𝐺:ℝ⟶(0[,]+∞)) | |
| 13 | fss 6712 | . . . . . . . . . 10 ⊢ ((𝐺:ℝ⟶(0[,]+∞) ∧ (0[,]+∞) ⊆ ℝ*) → 𝐺:ℝ⟶ℝ*) | |
| 14 | 12, 9, 13 | sylancl 597 | . . . . . . . . 9 ⊢ (((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) ∧ ℎ ∈ dom ∫1) → 𝐺:ℝ⟶ℝ*) |
| 15 | xrletr 13174 | . . . . . . . . . 10 ⊢ ((𝑥 ∈ ℝ* ∧ 𝑦 ∈ ℝ* ∧ 𝑧 ∈ ℝ*) → ((𝑥 ≤ 𝑦 ∧ 𝑦 ≤ 𝑧) → 𝑥 ≤ 𝑧)) | |
| 16 | 15 | adantl 486 | . . . . . . . . 9 ⊢ ((((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) ∧ ℎ ∈ dom ∫1) ∧ (𝑥 ∈ ℝ* ∧ 𝑦 ∈ ℝ* ∧ 𝑧 ∈ ℝ*)) → ((𝑥 ≤ 𝑦 ∧ 𝑦 ≤ 𝑧) → 𝑥 ≤ 𝑧)) |
| 17 | 2, 7, 11, 14, 16 | caoftrn 7705 | . . . . . . . 8 ⊢ (((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) ∧ ℎ ∈ dom ∫1) → ((ℎ ∘r ≤ 𝐹 ∧ 𝐹 ∘r ≤ 𝐺) → ℎ ∘r ≤ 𝐺)) |
| 18 | simplr 780 | . . . . . . . . . 10 ⊢ (((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) ∧ (ℎ ∈ dom ∫1 ∧ ℎ ∘r ≤ 𝐺)) → 𝐺:ℝ⟶(0[,]+∞)) | |
| 19 | simprl 782 | . . . . . . . . . 10 ⊢ (((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) ∧ (ℎ ∈ dom ∫1 ∧ ℎ ∘r ≤ 𝐺)) → ℎ ∈ dom ∫1) | |
| 20 | simprr 784 | . . . . . . . . . 10 ⊢ (((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) ∧ (ℎ ∈ dom ∫1 ∧ ℎ ∘r ≤ 𝐺)) → ℎ ∘r ≤ 𝐺) | |
| 21 | itg2ub 25853 | . . . . . . . . . 10 ⊢ ((𝐺:ℝ⟶(0[,]+∞) ∧ ℎ ∈ dom ∫1 ∧ ℎ ∘r ≤ 𝐺) → (∫1‘ℎ) ≤ (∫2‘𝐺)) | |
| 22 | 18, 19, 20, 21 | syl3anc 1394 | . . . . . . . . 9 ⊢ (((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) ∧ (ℎ ∈ dom ∫1 ∧ ℎ ∘r ≤ 𝐺)) → (∫1‘ℎ) ≤ (∫2‘𝐺)) |
| 23 | 22 | expr 461 | . . . . . . . 8 ⊢ (((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) ∧ ℎ ∈ dom ∫1) → (ℎ ∘r ≤ 𝐺 → (∫1‘ℎ) ≤ (∫2‘𝐺))) |
| 24 | 17, 23 | syld 48 | . . . . . . 7 ⊢ (((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) ∧ ℎ ∈ dom ∫1) → ((ℎ ∘r ≤ 𝐹 ∧ 𝐹 ∘r ≤ 𝐺) → (∫1‘ℎ) ≤ (∫2‘𝐺))) |
| 25 | 24 | ancomsd 470 | . . . . . 6 ⊢ (((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) ∧ ℎ ∈ dom ∫1) → ((𝐹 ∘r ≤ 𝐺 ∧ ℎ ∘r ≤ 𝐹) → (∫1‘ℎ) ≤ (∫2‘𝐺))) |
| 26 | 25 | exp4b 435 | . . . . 5 ⊢ ((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) → (ℎ ∈ dom ∫1 → (𝐹 ∘r ≤ 𝐺 → (ℎ ∘r ≤ 𝐹 → (∫1‘ℎ) ≤ (∫2‘𝐺))))) |
| 27 | 26 | com23 87 | . . . 4 ⊢ ((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞)) → (𝐹 ∘r ≤ 𝐺 → (ℎ ∈ dom ∫1 → (ℎ ∘r ≤ 𝐹 → (∫1‘ℎ) ≤ (∫2‘𝐺))))) |
| 28 | 27 | 3impia 1133 | . . 3 ⊢ ((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞) ∧ 𝐹 ∘r ≤ 𝐺) → (ℎ ∈ dom ∫1 → (ℎ ∘r ≤ 𝐹 → (∫1‘ℎ) ≤ (∫2‘𝐺)))) |
| 29 | 28 | ralrimiv 3156 | . 2 ⊢ ((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞) ∧ 𝐹 ∘r ≤ 𝐺) → ∀ℎ ∈ dom ∫1(ℎ ∘r ≤ 𝐹 → (∫1‘ℎ) ≤ (∫2‘𝐺))) |
| 30 | simp1 1152 | . . 3 ⊢ ((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞) ∧ 𝐹 ∘r ≤ 𝐺) → 𝐹:ℝ⟶(0[,]+∞)) | |
| 31 | itg2cl 25852 | . . . 4 ⊢ (𝐺:ℝ⟶(0[,]+∞) → (∫2‘𝐺) ∈ ℝ*) | |
| 32 | 31 | 3ad2ant2 1150 | . . 3 ⊢ ((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞) ∧ 𝐹 ∘r ≤ 𝐺) → (∫2‘𝐺) ∈ ℝ*) |
| 33 | itg2leub 25854 | . . 3 ⊢ ((𝐹:ℝ⟶(0[,]+∞) ∧ (∫2‘𝐺) ∈ ℝ*) → ((∫2‘𝐹) ≤ (∫2‘𝐺) ↔ ∀ℎ ∈ dom ∫1(ℎ ∘r ≤ 𝐹 → (∫1‘ℎ) ≤ (∫2‘𝐺)))) | |
| 34 | 30, 32, 33 | syl2anc 595 | . 2 ⊢ ((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞) ∧ 𝐹 ∘r ≤ 𝐺) → ((∫2‘𝐹) ≤ (∫2‘𝐺) ↔ ∀ℎ ∈ dom ∫1(ℎ ∘r ≤ 𝐹 → (∫1‘ℎ) ≤ (∫2‘𝐺)))) |
| 35 | 29, 34 | mpbird 260 | 1 ⊢ ((𝐹:ℝ⟶(0[,]+∞) ∧ 𝐺:ℝ⟶(0[,]+∞) ∧ 𝐹 ∘r ≤ 𝐺) → (∫2‘𝐹) ≤ (∫2‘𝐺)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 209 ∧ wa 400 ∧ w3a 1101 ∈ wcel 2145 ∀wral 3079 Vcvv 3457 ⊆ wss 3907 class class class wbr 5105 dom cdm 5652 ⟶wf 6521 ‘cfv 6525 (class class class)co 7400 ∘r cofr 7663 ℝcr 11087 0cc0 11088 +∞cpnf 11228 ℝ*cxr 11230 ≤ cle 11232 [,]cicc 13366 ∫1citg1 25735 ∫2citg2 25736 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1818 ax-4 1832 ax-5 1933 ax-6 1990 ax-7 2031 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2737 ax-rep 5232 ax-sep 5251 ax-nul 5261 ax-pow 5327 ax-pr 5395 ax-un 7722 ax-inf2 9598 ax-cnex 11144 ax-resscn 11145 ax-1cn 11146 ax-icn 11147 ax-addcl 11148 ax-addrcl 11149 ax-mulcl 11150 ax-mulrcl 11151 ax-mulcom 11152 ax-addass 11153 ax-mulass 11154 ax-distr 11155 ax-i2m1 11156 ax-1ne0 11157 ax-1rid 11158 ax-rnegex 11159 ax-rrecex 11160 ax-cnre 11161 ax-pre-lttri 11162 ax-pre-lttrn 11163 ax-pre-ltadd 11164 ax-pre-mulgt0 11165 ax-pre-sup 11166 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1566 df-fal 1576 df-ex 1803 df-nf 1807 df-sb 2094 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3065 df-ral 3080 df-rex 3090 df-rmo 3370 df-reu 3371 df-rab 3418 df-v 3459 df-sbc 3748 df-csb 3856 df-dif 3910 df-un 3912 df-in 3914 df-ss 3924 df-pss 3927 df-nul 4289 df-if 4484 df-pw 4560 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4869 df-int 4909 df-iun 4954 df-br 5106 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5547 df-eprel 5552 df-po 5560 df-so 5561 df-fr 5605 df-se 5606 df-we 5607 df-xp 5658 df-rel 5659 df-cnv 5660 df-co 5661 df-dm 5662 df-rn 5663 df-res 5664 df-ima 5665 df-pred 6292 df-ord 6353 df-on 6354 df-lim 6355 df-suc 6356 df-iota 6481 df-fun 6527 df-fn 6528 df-f 6529 df-f1 6530 df-fo 6531 df-f1o 6532 df-fv 6533 df-isom 6534 df-riota 7357 df-ov 7403 df-oprab 7404 df-mpo 7405 df-of 7664 df-ofr 7665 df-om 7851 df-1st 7974 df-2nd 7975 df-frecs 8266 df-wrecs 8297 df-recs 8346 df-rdg 8385 df-1o 8441 df-2o 8442 df-er 8682 df-map 8814 df-pm 8815 df-en 8932 df-dom 8933 df-sdom 8934 df-fin 8935 df-sup 9390 df-inf 9391 df-oi 9460 df-dju 9875 df-card 9913 df-pnf 11233 df-mnf 11234 df-xr 11235 df-ltxr 11236 df-le 11237 df-sub 11431 df-neg 11432 df-div 11860 df-nn 12225 df-2 12294 df-3 12295 df-n0 12496 df-z 12583 df-uz 12854 df-q 12964 df-rp 13008 df-xadd 13129 df-ioo 13367 df-ico 13369 df-icc 13370 df-fz 13527 df-fzo 13674 df-fl 13816 df-seq 14029 df-exp 14089 df-hash 14358 df-cj 15140 df-re 15141 df-im 15142 df-sqrt 15276 df-abs 15277 df-clim 15529 df-sum 15728 df-xmet 21475 df-met 21476 df-ovol 25584 df-vol 25585 df-mbf 25739 df-itg1 25740 df-itg2 25741 |
| This theorem is referenced by: itg2const2 25861 itg2monolem1 25870 itg2mono 25873 itg2gt0 25880 itg2cnlem2 25882 iblss 25925 itgle 25930 ibladdlem 25940 iblabs 25949 iblabsr 25950 iblmulc2 25951 bddmulibl 25959 bddiblnc 25962 itg2gt0cn 38186 ibladdnclem 38187 iblabsnc 38195 iblmulc2nc 38196 ftc1anclem4 38207 ftc1anclem6 38209 ftc1anclem7 38210 ftc1anclem8 38211 ftc1anc 38212 |
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