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Mirrors > Home > MPE Home > Th. List > itg2monolem2 | Structured version Visualization version GIF version |
Description: Lemma for itg2mono 24916. (Contributed by Mario Carneiro, 16-Aug-2014.) |
Ref | Expression |
---|---|
itg2mono.1 | ⊢ 𝐺 = (𝑥 ∈ ℝ ↦ sup(ran (𝑛 ∈ ℕ ↦ ((𝐹‘𝑛)‘𝑥)), ℝ, < )) |
itg2mono.2 | ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (𝐹‘𝑛) ∈ MblFn) |
itg2mono.3 | ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (𝐹‘𝑛):ℝ⟶(0[,)+∞)) |
itg2mono.4 | ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (𝐹‘𝑛) ∘r ≤ (𝐹‘(𝑛 + 1))) |
itg2mono.5 | ⊢ ((𝜑 ∧ 𝑥 ∈ ℝ) → ∃𝑦 ∈ ℝ ∀𝑛 ∈ ℕ ((𝐹‘𝑛)‘𝑥) ≤ 𝑦) |
itg2mono.6 | ⊢ 𝑆 = sup(ran (𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛))), ℝ*, < ) |
itg2monolem2.7 | ⊢ (𝜑 → 𝑃 ∈ dom ∫1) |
itg2monolem2.8 | ⊢ (𝜑 → 𝑃 ∘r ≤ 𝐺) |
itg2monolem2.9 | ⊢ (𝜑 → ¬ (∫1‘𝑃) ≤ 𝑆) |
Ref | Expression |
---|---|
itg2monolem2 | ⊢ (𝜑 → 𝑆 ∈ ℝ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | itg2mono.6 | . . 3 ⊢ 𝑆 = sup(ran (𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛))), ℝ*, < ) | |
2 | itg2mono.3 | . . . . . . . 8 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (𝐹‘𝑛):ℝ⟶(0[,)+∞)) | |
3 | icossicc 13166 | . . . . . . . 8 ⊢ (0[,)+∞) ⊆ (0[,]+∞) | |
4 | fss 6619 | . . . . . . . 8 ⊢ (((𝐹‘𝑛):ℝ⟶(0[,)+∞) ∧ (0[,)+∞) ⊆ (0[,]+∞)) → (𝐹‘𝑛):ℝ⟶(0[,]+∞)) | |
5 | 2, 3, 4 | sylancl 586 | . . . . . . 7 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (𝐹‘𝑛):ℝ⟶(0[,]+∞)) |
6 | itg2cl 24895 | . . . . . . 7 ⊢ ((𝐹‘𝑛):ℝ⟶(0[,]+∞) → (∫2‘(𝐹‘𝑛)) ∈ ℝ*) | |
7 | 5, 6 | syl 17 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑛 ∈ ℕ) → (∫2‘(𝐹‘𝑛)) ∈ ℝ*) |
8 | 7 | fmpttd 6991 | . . . . 5 ⊢ (𝜑 → (𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛))):ℕ⟶ℝ*) |
9 | 8 | frnd 6610 | . . . 4 ⊢ (𝜑 → ran (𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛))) ⊆ ℝ*) |
10 | supxrcl 13047 | . . . 4 ⊢ (ran (𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛))) ⊆ ℝ* → sup(ran (𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛))), ℝ*, < ) ∈ ℝ*) | |
11 | 9, 10 | syl 17 | . . 3 ⊢ (𝜑 → sup(ran (𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛))), ℝ*, < ) ∈ ℝ*) |
12 | 1, 11 | eqeltrid 2843 | . 2 ⊢ (𝜑 → 𝑆 ∈ ℝ*) |
13 | itg2monolem2.7 | . . 3 ⊢ (𝜑 → 𝑃 ∈ dom ∫1) | |
14 | itg1cl 24847 | . . 3 ⊢ (𝑃 ∈ dom ∫1 → (∫1‘𝑃) ∈ ℝ) | |
15 | 13, 14 | syl 17 | . 2 ⊢ (𝜑 → (∫1‘𝑃) ∈ ℝ) |
16 | mnfxr 11030 | . . . 4 ⊢ -∞ ∈ ℝ* | |
17 | 16 | a1i 11 | . . 3 ⊢ (𝜑 → -∞ ∈ ℝ*) |
18 | fveq2 6776 | . . . . . 6 ⊢ (𝑛 = 1 → (𝐹‘𝑛) = (𝐹‘1)) | |
19 | 18 | feq1d 6587 | . . . . 5 ⊢ (𝑛 = 1 → ((𝐹‘𝑛):ℝ⟶(0[,]+∞) ↔ (𝐹‘1):ℝ⟶(0[,]+∞))) |
20 | 5 | ralrimiva 3103 | . . . . 5 ⊢ (𝜑 → ∀𝑛 ∈ ℕ (𝐹‘𝑛):ℝ⟶(0[,]+∞)) |
21 | 1nn 11982 | . . . . . 6 ⊢ 1 ∈ ℕ | |
22 | 21 | a1i 11 | . . . . 5 ⊢ (𝜑 → 1 ∈ ℕ) |
23 | 19, 20, 22 | rspcdva 3563 | . . . 4 ⊢ (𝜑 → (𝐹‘1):ℝ⟶(0[,]+∞)) |
24 | itg2cl 24895 | . . . 4 ⊢ ((𝐹‘1):ℝ⟶(0[,]+∞) → (∫2‘(𝐹‘1)) ∈ ℝ*) | |
25 | 23, 24 | syl 17 | . . 3 ⊢ (𝜑 → (∫2‘(𝐹‘1)) ∈ ℝ*) |
26 | itg2ge0 24898 | . . . . 5 ⊢ ((𝐹‘1):ℝ⟶(0[,]+∞) → 0 ≤ (∫2‘(𝐹‘1))) | |
27 | 23, 26 | syl 17 | . . . 4 ⊢ (𝜑 → 0 ≤ (∫2‘(𝐹‘1))) |
28 | mnflt0 12859 | . . . . 5 ⊢ -∞ < 0 | |
29 | 0xr 11020 | . . . . . 6 ⊢ 0 ∈ ℝ* | |
30 | xrltletr 12889 | . . . . . 6 ⊢ ((-∞ ∈ ℝ* ∧ 0 ∈ ℝ* ∧ (∫2‘(𝐹‘1)) ∈ ℝ*) → ((-∞ < 0 ∧ 0 ≤ (∫2‘(𝐹‘1))) → -∞ < (∫2‘(𝐹‘1)))) | |
31 | 16, 29, 25, 30 | mp3an12i 1464 | . . . . 5 ⊢ (𝜑 → ((-∞ < 0 ∧ 0 ≤ (∫2‘(𝐹‘1))) → -∞ < (∫2‘(𝐹‘1)))) |
32 | 28, 31 | mpani 693 | . . . 4 ⊢ (𝜑 → (0 ≤ (∫2‘(𝐹‘1)) → -∞ < (∫2‘(𝐹‘1)))) |
33 | 27, 32 | mpd 15 | . . 3 ⊢ (𝜑 → -∞ < (∫2‘(𝐹‘1))) |
34 | 2fveq3 6781 | . . . . . . . 8 ⊢ (𝑛 = 1 → (∫2‘(𝐹‘𝑛)) = (∫2‘(𝐹‘1))) | |
35 | eqid 2738 | . . . . . . . 8 ⊢ (𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛))) = (𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛))) | |
36 | fvex 6789 | . . . . . . . 8 ⊢ (∫2‘(𝐹‘1)) ∈ V | |
37 | 34, 35, 36 | fvmpt 6877 | . . . . . . 7 ⊢ (1 ∈ ℕ → ((𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛)))‘1) = (∫2‘(𝐹‘1))) |
38 | 21, 37 | ax-mp 5 | . . . . . 6 ⊢ ((𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛)))‘1) = (∫2‘(𝐹‘1)) |
39 | 8 | ffnd 6603 | . . . . . . 7 ⊢ (𝜑 → (𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛))) Fn ℕ) |
40 | fnfvelrn 6960 | . . . . . . 7 ⊢ (((𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛))) Fn ℕ ∧ 1 ∈ ℕ) → ((𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛)))‘1) ∈ ran (𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛)))) | |
41 | 39, 21, 40 | sylancl 586 | . . . . . 6 ⊢ (𝜑 → ((𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛)))‘1) ∈ ran (𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛)))) |
42 | 38, 41 | eqeltrrid 2844 | . . . . 5 ⊢ (𝜑 → (∫2‘(𝐹‘1)) ∈ ran (𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛)))) |
43 | supxrub 13056 | . . . . 5 ⊢ ((ran (𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛))) ⊆ ℝ* ∧ (∫2‘(𝐹‘1)) ∈ ran (𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛)))) → (∫2‘(𝐹‘1)) ≤ sup(ran (𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛))), ℝ*, < )) | |
44 | 9, 42, 43 | syl2anc 584 | . . . 4 ⊢ (𝜑 → (∫2‘(𝐹‘1)) ≤ sup(ran (𝑛 ∈ ℕ ↦ (∫2‘(𝐹‘𝑛))), ℝ*, < )) |
45 | 44, 1 | breqtrrdi 5118 | . . 3 ⊢ (𝜑 → (∫2‘(𝐹‘1)) ≤ 𝑆) |
46 | 17, 25, 12, 33, 45 | xrltletrd 12893 | . 2 ⊢ (𝜑 → -∞ < 𝑆) |
47 | 15 | rexrd 11023 | . . 3 ⊢ (𝜑 → (∫1‘𝑃) ∈ ℝ*) |
48 | itg2monolem2.9 | . . . 4 ⊢ (𝜑 → ¬ (∫1‘𝑃) ≤ 𝑆) | |
49 | xrltnle 11040 | . . . . 5 ⊢ ((𝑆 ∈ ℝ* ∧ (∫1‘𝑃) ∈ ℝ*) → (𝑆 < (∫1‘𝑃) ↔ ¬ (∫1‘𝑃) ≤ 𝑆)) | |
50 | 12, 47, 49 | syl2anc 584 | . . . 4 ⊢ (𝜑 → (𝑆 < (∫1‘𝑃) ↔ ¬ (∫1‘𝑃) ≤ 𝑆)) |
51 | 48, 50 | mpbird 256 | . . 3 ⊢ (𝜑 → 𝑆 < (∫1‘𝑃)) |
52 | 12, 47, 51 | xrltled 12882 | . 2 ⊢ (𝜑 → 𝑆 ≤ (∫1‘𝑃)) |
53 | xrre 12901 | . 2 ⊢ (((𝑆 ∈ ℝ* ∧ (∫1‘𝑃) ∈ ℝ) ∧ (-∞ < 𝑆 ∧ 𝑆 ≤ (∫1‘𝑃))) → 𝑆 ∈ ℝ) | |
54 | 12, 15, 46, 52, 53 | syl22anc 836 | 1 ⊢ (𝜑 → 𝑆 ∈ ℝ) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 ∧ wa 396 = wceq 1539 ∈ wcel 2106 ∀wral 3064 ∃wrex 3065 ⊆ wss 3888 class class class wbr 5076 ↦ cmpt 5159 dom cdm 5591 ran crn 5592 Fn wfn 6430 ⟶wf 6431 ‘cfv 6435 (class class class)co 7277 ∘r cofr 7532 supcsup 9197 ℝcr 10868 0cc0 10869 1c1 10870 + caddc 10872 +∞cpnf 11004 -∞cmnf 11005 ℝ*cxr 11006 < clt 11007 ≤ cle 11008 ℕcn 11971 [,)cico 13079 [,]cicc 13080 MblFncmbf 24776 ∫1citg1 24777 ∫2citg2 24778 |
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 5211 ax-sep 5225 ax-nul 5232 ax-pow 5290 ax-pr 5354 ax-un 7588 ax-inf2 9397 ax-cnex 10925 ax-resscn 10926 ax-1cn 10927 ax-icn 10928 ax-addcl 10929 ax-addrcl 10930 ax-mulcl 10931 ax-mulrcl 10932 ax-mulcom 10933 ax-addass 10934 ax-mulass 10935 ax-distr 10936 ax-i2m1 10937 ax-1ne0 10938 ax-1rid 10939 ax-rnegex 10940 ax-rrecex 10941 ax-cnre 10942 ax-pre-lttri 10943 ax-pre-lttrn 10944 ax-pre-ltadd 10945 ax-pre-mulgt0 10946 ax-pre-sup 10947 |
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 3433 df-sbc 3718 df-csb 3834 df-dif 3891 df-un 3893 df-in 3895 df-ss 3905 df-pss 3907 df-nul 4259 df-if 4462 df-pw 4537 df-sn 4564 df-pr 4566 df-op 4570 df-uni 4842 df-int 4882 df-iun 4928 df-br 5077 df-opab 5139 df-mpt 5160 df-tr 5194 df-id 5491 df-eprel 5497 df-po 5505 df-so 5506 df-fr 5546 df-se 5547 df-we 5548 df-xp 5597 df-rel 5598 df-cnv 5599 df-co 5600 df-dm 5601 df-rn 5602 df-res 5603 df-ima 5604 df-pred 6204 df-ord 6271 df-on 6272 df-lim 6273 df-suc 6274 df-iota 6393 df-fun 6437 df-fn 6438 df-f 6439 df-f1 6440 df-fo 6441 df-f1o 6442 df-fv 6443 df-isom 6444 df-riota 7234 df-ov 7280 df-oprab 7281 df-mpo 7282 df-of 7533 df-ofr 7534 df-om 7713 df-1st 7831 df-2nd 7832 df-frecs 8095 df-wrecs 8126 df-recs 8200 df-rdg 8239 df-1o 8295 df-2o 8296 df-er 8496 df-map 8615 df-pm 8616 df-en 8732 df-dom 8733 df-sdom 8734 df-fin 8735 df-sup 9199 df-inf 9200 df-oi 9267 df-dju 9657 df-card 9695 df-pnf 11009 df-mnf 11010 df-xr 11011 df-ltxr 11012 df-le 11013 df-sub 11205 df-neg 11206 df-div 11631 df-nn 11972 df-2 12034 df-3 12035 df-n0 12232 df-z 12318 df-uz 12581 df-q 12687 df-rp 12729 df-xadd 12847 df-ioo 13081 df-ico 13083 df-icc 13084 df-fz 13238 df-fzo 13381 df-fl 13510 df-seq 13720 df-exp 13781 df-hash 14043 df-cj 14808 df-re 14809 df-im 14810 df-sqrt 14944 df-abs 14945 df-clim 15195 df-sum 15396 df-xmet 20588 df-met 20589 df-ovol 24626 df-vol 24627 df-mbf 24781 df-itg1 24782 df-itg2 24783 |
This theorem is referenced by: itg2monolem3 24915 |
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