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Mirrors > Home > MPE Home > Th. List > Mathboxes > dvreacos | Structured version Visualization version GIF version |
Description: Real derivative of arccosine. (Contributed by Brendan Leahy, 3-Aug-2017.) (Proof shortened by Brendan Leahy, 18-Dec-2018.) |
Ref | Expression |
---|---|
dvreacos | ⊢ (ℝ D (arccos ↾ (-1(,)1))) = (𝑥 ∈ (-1(,)1) ↦ (-1 / (√‘(1 − (𝑥↑2))))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | acosf 25711 | . . . . . 6 ⊢ arccos:ℂ⟶ℂ | |
2 | 1 | a1i 11 | . . . . 5 ⊢ (⊤ → arccos:ℂ⟶ℂ) |
3 | ioossre 12961 | . . . . . . 7 ⊢ (-1(,)1) ⊆ ℝ | |
4 | ax-resscn 10751 | . . . . . . 7 ⊢ ℝ ⊆ ℂ | |
5 | 3, 4 | sstri 3896 | . . . . . 6 ⊢ (-1(,)1) ⊆ ℂ |
6 | 5 | a1i 11 | . . . . 5 ⊢ (⊤ → (-1(,)1) ⊆ ℂ) |
7 | 2, 6 | feqresmpt 6759 | . . . 4 ⊢ (⊤ → (arccos ↾ (-1(,)1)) = (𝑥 ∈ (-1(,)1) ↦ (arccos‘𝑥))) |
8 | 7 | oveq2d 7207 | . . 3 ⊢ (⊤ → (ℝ D (arccos ↾ (-1(,)1))) = (ℝ D (𝑥 ∈ (-1(,)1) ↦ (arccos‘𝑥)))) |
9 | eqid 2736 | . . . 4 ⊢ (TopOpen‘ℂfld) = (TopOpen‘ℂfld) | |
10 | reelprrecn 10786 | . . . . 5 ⊢ ℝ ∈ {ℝ, ℂ} | |
11 | 10 | a1i 11 | . . . 4 ⊢ (⊤ → ℝ ∈ {ℝ, ℂ}) |
12 | 9 | recld2 23665 | . . . . . 6 ⊢ ℝ ∈ (Clsd‘(TopOpen‘ℂfld)) |
13 | neg1rr 11910 | . . . . . . . . 9 ⊢ -1 ∈ ℝ | |
14 | iocmnfcld 23620 | . . . . . . . . 9 ⊢ (-1 ∈ ℝ → (-∞(,]-1) ∈ (Clsd‘(topGen‘ran (,)))) | |
15 | 13, 14 | ax-mp 5 | . . . . . . . 8 ⊢ (-∞(,]-1) ∈ (Clsd‘(topGen‘ran (,))) |
16 | 1re 10798 | . . . . . . . . 9 ⊢ 1 ∈ ℝ | |
17 | icopnfcld 23619 | . . . . . . . . 9 ⊢ (1 ∈ ℝ → (1[,)+∞) ∈ (Clsd‘(topGen‘ran (,)))) | |
18 | 16, 17 | ax-mp 5 | . . . . . . . 8 ⊢ (1[,)+∞) ∈ (Clsd‘(topGen‘ran (,))) |
19 | uncld 21892 | . . . . . . . 8 ⊢ (((-∞(,]-1) ∈ (Clsd‘(topGen‘ran (,))) ∧ (1[,)+∞) ∈ (Clsd‘(topGen‘ran (,)))) → ((-∞(,]-1) ∪ (1[,)+∞)) ∈ (Clsd‘(topGen‘ran (,)))) | |
20 | 15, 18, 19 | mp2an 692 | . . . . . . 7 ⊢ ((-∞(,]-1) ∪ (1[,)+∞)) ∈ (Clsd‘(topGen‘ran (,))) |
21 | 9 | tgioo2 23654 | . . . . . . . 8 ⊢ (topGen‘ran (,)) = ((TopOpen‘ℂfld) ↾t ℝ) |
22 | 21 | fveq2i 6698 | . . . . . . 7 ⊢ (Clsd‘(topGen‘ran (,))) = (Clsd‘((TopOpen‘ℂfld) ↾t ℝ)) |
23 | 20, 22 | eleqtri 2829 | . . . . . 6 ⊢ ((-∞(,]-1) ∪ (1[,)+∞)) ∈ (Clsd‘((TopOpen‘ℂfld) ↾t ℝ)) |
24 | restcldr 22025 | . . . . . 6 ⊢ ((ℝ ∈ (Clsd‘(TopOpen‘ℂfld)) ∧ ((-∞(,]-1) ∪ (1[,)+∞)) ∈ (Clsd‘((TopOpen‘ℂfld) ↾t ℝ))) → ((-∞(,]-1) ∪ (1[,)+∞)) ∈ (Clsd‘(TopOpen‘ℂfld))) | |
25 | 12, 23, 24 | mp2an 692 | . . . . 5 ⊢ ((-∞(,]-1) ∪ (1[,)+∞)) ∈ (Clsd‘(TopOpen‘ℂfld)) |
26 | 9 | cnfldtopon 23634 | . . . . . . 7 ⊢ (TopOpen‘ℂfld) ∈ (TopOn‘ℂ) |
27 | 26 | toponunii 21767 | . . . . . 6 ⊢ ℂ = ∪ (TopOpen‘ℂfld) |
28 | 27 | cldopn 21882 | . . . . 5 ⊢ (((-∞(,]-1) ∪ (1[,)+∞)) ∈ (Clsd‘(TopOpen‘ℂfld)) → (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ∈ (TopOpen‘ℂfld)) |
29 | 25, 28 | mp1i 13 | . . . 4 ⊢ (⊤ → (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ∈ (TopOpen‘ℂfld)) |
30 | incom 4101 | . . . . . 6 ⊢ (ℝ ∩ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞)))) = ((ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ∩ ℝ) | |
31 | eqid 2736 | . . . . . . 7 ⊢ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) = (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) | |
32 | 31 | asindmre 35546 | . . . . . 6 ⊢ ((ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ∩ ℝ) = (-1(,)1) |
33 | 30, 32 | eqtri 2759 | . . . . 5 ⊢ (ℝ ∩ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞)))) = (-1(,)1) |
34 | 33 | a1i 11 | . . . 4 ⊢ (⊤ → (ℝ ∩ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞)))) = (-1(,)1)) |
35 | eldifi 4027 | . . . . . 6 ⊢ (𝑥 ∈ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) → 𝑥 ∈ ℂ) | |
36 | acoscl 25712 | . . . . . 6 ⊢ (𝑥 ∈ ℂ → (arccos‘𝑥) ∈ ℂ) | |
37 | 35, 36 | syl 17 | . . . . 5 ⊢ (𝑥 ∈ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) → (arccos‘𝑥) ∈ ℂ) |
38 | 37 | adantl 485 | . . . 4 ⊢ ((⊤ ∧ 𝑥 ∈ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞)))) → (arccos‘𝑥) ∈ ℂ) |
39 | ovexd 7226 | . . . 4 ⊢ ((⊤ ∧ 𝑥 ∈ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞)))) → (-1 / (√‘(1 − (𝑥↑2)))) ∈ V) | |
40 | difssd 4033 | . . . . . . 7 ⊢ (⊤ → (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ⊆ ℂ) | |
41 | 2, 40 | feqresmpt 6759 | . . . . . 6 ⊢ (⊤ → (arccos ↾ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞)))) = (𝑥 ∈ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ↦ (arccos‘𝑥))) |
42 | 41 | oveq2d 7207 | . . . . 5 ⊢ (⊤ → (ℂ D (arccos ↾ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))))) = (ℂ D (𝑥 ∈ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ↦ (arccos‘𝑥)))) |
43 | 31 | dvacos 35548 | . . . . 5 ⊢ (ℂ D (arccos ↾ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))))) = (𝑥 ∈ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ↦ (-1 / (√‘(1 − (𝑥↑2))))) |
44 | 42, 43 | eqtr3di 2786 | . . . 4 ⊢ (⊤ → (ℂ D (𝑥 ∈ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ↦ (arccos‘𝑥))) = (𝑥 ∈ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ↦ (-1 / (√‘(1 − (𝑥↑2)))))) |
45 | 9, 11, 29, 34, 38, 39, 44 | dvmptres3 24807 | . . 3 ⊢ (⊤ → (ℝ D (𝑥 ∈ (-1(,)1) ↦ (arccos‘𝑥))) = (𝑥 ∈ (-1(,)1) ↦ (-1 / (√‘(1 − (𝑥↑2)))))) |
46 | 8, 45 | eqtrd 2771 | . 2 ⊢ (⊤ → (ℝ D (arccos ↾ (-1(,)1))) = (𝑥 ∈ (-1(,)1) ↦ (-1 / (√‘(1 − (𝑥↑2)))))) |
47 | 46 | mptru 1550 | 1 ⊢ (ℝ D (arccos ↾ (-1(,)1))) = (𝑥 ∈ (-1(,)1) ↦ (-1 / (√‘(1 − (𝑥↑2))))) |
Colors of variables: wff setvar class |
Syntax hints: ∧ wa 399 = wceq 1543 ⊤wtru 1544 ∈ wcel 2112 Vcvv 3398 ∖ cdif 3850 ∪ cun 3851 ∩ cin 3852 ⊆ wss 3853 {cpr 4529 ↦ cmpt 5120 ran crn 5537 ↾ cres 5538 ⟶wf 6354 ‘cfv 6358 (class class class)co 7191 ℂcc 10692 ℝcr 10693 1c1 10695 +∞cpnf 10829 -∞cmnf 10830 − cmin 11027 -cneg 11028 / cdiv 11454 2c2 11850 (,)cioo 12900 (,]cioc 12901 [,)cico 12902 ↑cexp 13600 √csqrt 14761 ↾t crest 16879 TopOpenctopn 16880 topGenctg 16896 ℂfldccnfld 20317 Clsdccld 21867 D cdv 24714 arccoscacos 25700 |
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 1976 ax-7 2018 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2160 ax-12 2177 ax-ext 2708 ax-rep 5164 ax-sep 5177 ax-nul 5184 ax-pow 5243 ax-pr 5307 ax-un 7501 ax-inf2 9234 ax-cnex 10750 ax-resscn 10751 ax-1cn 10752 ax-icn 10753 ax-addcl 10754 ax-addrcl 10755 ax-mulcl 10756 ax-mulrcl 10757 ax-mulcom 10758 ax-addass 10759 ax-mulass 10760 ax-distr 10761 ax-i2m1 10762 ax-1ne0 10763 ax-1rid 10764 ax-rnegex 10765 ax-rrecex 10766 ax-cnre 10767 ax-pre-lttri 10768 ax-pre-lttrn 10769 ax-pre-ltadd 10770 ax-pre-mulgt0 10771 ax-pre-sup 10772 ax-addf 10773 ax-mulf 10774 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2073 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2728 df-clel 2809 df-nfc 2879 df-ne 2933 df-nel 3037 df-ral 3056 df-rex 3057 df-reu 3058 df-rmo 3059 df-rab 3060 df-v 3400 df-sbc 3684 df-csb 3799 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-pss 3872 df-nul 4224 df-if 4426 df-pw 4501 df-sn 4528 df-pr 4530 df-tp 4532 df-op 4534 df-uni 4806 df-int 4846 df-iun 4892 df-iin 4893 df-br 5040 df-opab 5102 df-mpt 5121 df-tr 5147 df-id 5440 df-eprel 5445 df-po 5453 df-so 5454 df-fr 5494 df-se 5495 df-we 5496 df-xp 5542 df-rel 5543 df-cnv 5544 df-co 5545 df-dm 5546 df-rn 5547 df-res 5548 df-ima 5549 df-pred 6140 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6316 df-fun 6360 df-fn 6361 df-f 6362 df-f1 6363 df-fo 6364 df-f1o 6365 df-fv 6366 df-isom 6367 df-riota 7148 df-ov 7194 df-oprab 7195 df-mpo 7196 df-of 7447 df-om 7623 df-1st 7739 df-2nd 7740 df-supp 7882 df-wrecs 8025 df-recs 8086 df-rdg 8124 df-1o 8180 df-2o 8181 df-er 8369 df-map 8488 df-pm 8489 df-ixp 8557 df-en 8605 df-dom 8606 df-sdom 8607 df-fin 8608 df-fsupp 8964 df-fi 9005 df-sup 9036 df-inf 9037 df-oi 9104 df-card 9520 df-pnf 10834 df-mnf 10835 df-xr 10836 df-ltxr 10837 df-le 10838 df-sub 11029 df-neg 11030 df-div 11455 df-nn 11796 df-2 11858 df-3 11859 df-4 11860 df-5 11861 df-6 11862 df-7 11863 df-8 11864 df-9 11865 df-n0 12056 df-z 12142 df-dec 12259 df-uz 12404 df-q 12510 df-rp 12552 df-xneg 12669 df-xadd 12670 df-xmul 12671 df-ioo 12904 df-ioc 12905 df-ico 12906 df-icc 12907 df-fz 13061 df-fzo 13204 df-fl 13332 df-mod 13408 df-seq 13540 df-exp 13601 df-fac 13805 df-bc 13834 df-hash 13862 df-shft 14595 df-cj 14627 df-re 14628 df-im 14629 df-sqrt 14763 df-abs 14764 df-limsup 14997 df-clim 15014 df-rlim 15015 df-sum 15215 df-ef 15592 df-sin 15594 df-cos 15595 df-tan 15596 df-pi 15597 df-struct 16668 df-ndx 16669 df-slot 16670 df-base 16672 df-sets 16673 df-ress 16674 df-plusg 16762 df-mulr 16763 df-starv 16764 df-sca 16765 df-vsca 16766 df-ip 16767 df-tset 16768 df-ple 16769 df-ds 16771 df-unif 16772 df-hom 16773 df-cco 16774 df-rest 16881 df-topn 16882 df-0g 16900 df-gsum 16901 df-topgen 16902 df-pt 16903 df-prds 16906 df-xrs 16961 df-qtop 16966 df-imas 16967 df-xps 16969 df-mre 17043 df-mrc 17044 df-acs 17046 df-mgm 18068 df-sgrp 18117 df-mnd 18128 df-submnd 18173 df-mulg 18443 df-cntz 18665 df-cmn 19126 df-psmet 20309 df-xmet 20310 df-met 20311 df-bl 20312 df-mopn 20313 df-fbas 20314 df-fg 20315 df-cnfld 20318 df-top 21745 df-topon 21762 df-topsp 21784 df-bases 21797 df-cld 21870 df-ntr 21871 df-cls 21872 df-nei 21949 df-lp 21987 df-perf 21988 df-cn 22078 df-cnp 22079 df-haus 22166 df-cmp 22238 df-tx 22413 df-hmeo 22606 df-fil 22697 df-fm 22789 df-flim 22790 df-flf 22791 df-xms 23172 df-ms 23173 df-tms 23174 df-cncf 23729 df-limc 24717 df-dv 24718 df-log 25399 df-cxp 25400 df-asin 25702 df-acos 25703 |
This theorem is referenced by: (None) |
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