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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 26897 | . . . . . 6 ⊢ arccos:ℂ⟶ℂ | |
2 | 1 | a1i 11 | . . . . 5 ⊢ (⊤ → arccos:ℂ⟶ℂ) |
3 | ioossre 13431 | . . . . . . 7 ⊢ (-1(,)1) ⊆ ℝ | |
4 | ax-resscn 11204 | . . . . . . 7 ⊢ ℝ ⊆ ℂ | |
5 | 3, 4 | sstri 3989 | . . . . . 6 ⊢ (-1(,)1) ⊆ ℂ |
6 | 5 | a1i 11 | . . . . 5 ⊢ (⊤ → (-1(,)1) ⊆ ℂ) |
7 | 2, 6 | feqresmpt 6962 | . . . 4 ⊢ (⊤ → (arccos ↾ (-1(,)1)) = (𝑥 ∈ (-1(,)1) ↦ (arccos‘𝑥))) |
8 | 7 | oveq2d 7430 | . . 3 ⊢ (⊤ → (ℝ D (arccos ↾ (-1(,)1))) = (ℝ D (𝑥 ∈ (-1(,)1) ↦ (arccos‘𝑥)))) |
9 | eqid 2726 | . . . 4 ⊢ (TopOpen‘ℂfld) = (TopOpen‘ℂfld) | |
10 | reelprrecn 11239 | . . . . 5 ⊢ ℝ ∈ {ℝ, ℂ} | |
11 | 10 | a1i 11 | . . . 4 ⊢ (⊤ → ℝ ∈ {ℝ, ℂ}) |
12 | 9 | recld2 24816 | . . . . . 6 ⊢ ℝ ∈ (Clsd‘(TopOpen‘ℂfld)) |
13 | neg1rr 12371 | . . . . . . . . 9 ⊢ -1 ∈ ℝ | |
14 | iocmnfcld 24771 | . . . . . . . . 9 ⊢ (-1 ∈ ℝ → (-∞(,]-1) ∈ (Clsd‘(topGen‘ran (,)))) | |
15 | 13, 14 | ax-mp 5 | . . . . . . . 8 ⊢ (-∞(,]-1) ∈ (Clsd‘(topGen‘ran (,))) |
16 | 1re 11253 | . . . . . . . . 9 ⊢ 1 ∈ ℝ | |
17 | icopnfcld 24770 | . . . . . . . . 9 ⊢ (1 ∈ ℝ → (1[,)+∞) ∈ (Clsd‘(topGen‘ran (,)))) | |
18 | 16, 17 | ax-mp 5 | . . . . . . . 8 ⊢ (1[,)+∞) ∈ (Clsd‘(topGen‘ran (,))) |
19 | uncld 23031 | . . . . . . . 8 ⊢ (((-∞(,]-1) ∈ (Clsd‘(topGen‘ran (,))) ∧ (1[,)+∞) ∈ (Clsd‘(topGen‘ran (,)))) → ((-∞(,]-1) ∪ (1[,)+∞)) ∈ (Clsd‘(topGen‘ran (,)))) | |
20 | 15, 18, 19 | mp2an 690 | . . . . . . 7 ⊢ ((-∞(,]-1) ∪ (1[,)+∞)) ∈ (Clsd‘(topGen‘ran (,))) |
21 | 9 | tgioo2 24805 | . . . . . . . 8 ⊢ (topGen‘ran (,)) = ((TopOpen‘ℂfld) ↾t ℝ) |
22 | 21 | fveq2i 6894 | . . . . . . 7 ⊢ (Clsd‘(topGen‘ran (,))) = (Clsd‘((TopOpen‘ℂfld) ↾t ℝ)) |
23 | 20, 22 | eleqtri 2824 | . . . . . 6 ⊢ ((-∞(,]-1) ∪ (1[,)+∞)) ∈ (Clsd‘((TopOpen‘ℂfld) ↾t ℝ)) |
24 | restcldr 23164 | . . . . . 6 ⊢ ((ℝ ∈ (Clsd‘(TopOpen‘ℂfld)) ∧ ((-∞(,]-1) ∪ (1[,)+∞)) ∈ (Clsd‘((TopOpen‘ℂfld) ↾t ℝ))) → ((-∞(,]-1) ∪ (1[,)+∞)) ∈ (Clsd‘(TopOpen‘ℂfld))) | |
25 | 12, 23, 24 | mp2an 690 | . . . . 5 ⊢ ((-∞(,]-1) ∪ (1[,)+∞)) ∈ (Clsd‘(TopOpen‘ℂfld)) |
26 | 9 | cnfldtopon 24785 | . . . . . . 7 ⊢ (TopOpen‘ℂfld) ∈ (TopOn‘ℂ) |
27 | 26 | toponunii 22904 | . . . . . 6 ⊢ ℂ = ∪ (TopOpen‘ℂfld) |
28 | 27 | cldopn 23021 | . . . . 5 ⊢ (((-∞(,]-1) ∪ (1[,)+∞)) ∈ (Clsd‘(TopOpen‘ℂfld)) → (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ∈ (TopOpen‘ℂfld)) |
29 | 25, 28 | mp1i 13 | . . . 4 ⊢ (⊤ → (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ∈ (TopOpen‘ℂfld)) |
30 | incom 4200 | . . . . . 6 ⊢ (ℝ ∩ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞)))) = ((ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ∩ ℝ) | |
31 | eqid 2726 | . . . . . . 7 ⊢ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) = (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) | |
32 | 31 | asindmre 37415 | . . . . . 6 ⊢ ((ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ∩ ℝ) = (-1(,)1) |
33 | 30, 32 | eqtri 2754 | . . . . 5 ⊢ (ℝ ∩ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞)))) = (-1(,)1) |
34 | 33 | a1i 11 | . . . 4 ⊢ (⊤ → (ℝ ∩ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞)))) = (-1(,)1)) |
35 | eldifi 4124 | . . . . . 6 ⊢ (𝑥 ∈ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) → 𝑥 ∈ ℂ) | |
36 | acoscl 26898 | . . . . . 6 ⊢ (𝑥 ∈ ℂ → (arccos‘𝑥) ∈ ℂ) | |
37 | 35, 36 | syl 17 | . . . . 5 ⊢ (𝑥 ∈ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) → (arccos‘𝑥) ∈ ℂ) |
38 | 37 | adantl 480 | . . . 4 ⊢ ((⊤ ∧ 𝑥 ∈ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞)))) → (arccos‘𝑥) ∈ ℂ) |
39 | ovexd 7449 | . . . 4 ⊢ ((⊤ ∧ 𝑥 ∈ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞)))) → (-1 / (√‘(1 − (𝑥↑2)))) ∈ V) | |
40 | difssd 4130 | . . . . . . 7 ⊢ (⊤ → (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ⊆ ℂ) | |
41 | 2, 40 | feqresmpt 6962 | . . . . . 6 ⊢ (⊤ → (arccos ↾ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞)))) = (𝑥 ∈ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ↦ (arccos‘𝑥))) |
42 | 41 | oveq2d 7430 | . . . . 5 ⊢ (⊤ → (ℂ D (arccos ↾ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))))) = (ℂ D (𝑥 ∈ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ↦ (arccos‘𝑥)))) |
43 | 31 | dvacos 37417 | . . . . 5 ⊢ (ℂ D (arccos ↾ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))))) = (𝑥 ∈ (ℂ ∖ ((-∞(,]-1) ∪ (1[,)+∞))) ↦ (-1 / (√‘(1 − (𝑥↑2))))) |
44 | 42, 43 | eqtr3di 2781 | . . . 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 25974 | . . 3 ⊢ (⊤ → (ℝ D (𝑥 ∈ (-1(,)1) ↦ (arccos‘𝑥))) = (𝑥 ∈ (-1(,)1) ↦ (-1 / (√‘(1 − (𝑥↑2)))))) |
46 | 8, 45 | eqtrd 2766 | . 2 ⊢ (⊤ → (ℝ D (arccos ↾ (-1(,)1))) = (𝑥 ∈ (-1(,)1) ↦ (-1 / (√‘(1 − (𝑥↑2)))))) |
47 | 46 | mptru 1541 | 1 ⊢ (ℝ D (arccos ↾ (-1(,)1))) = (𝑥 ∈ (-1(,)1) ↦ (-1 / (√‘(1 − (𝑥↑2))))) |
Colors of variables: wff setvar class |
Syntax hints: ∧ wa 394 = wceq 1534 ⊤wtru 1535 ∈ wcel 2099 Vcvv 3463 ∖ cdif 3944 ∪ cun 3945 ∩ cin 3946 ⊆ wss 3947 {cpr 4626 ↦ cmpt 5227 ran crn 5674 ↾ cres 5675 ⟶wf 6540 ‘cfv 6544 (class class class)co 7414 ℂcc 11145 ℝcr 11146 1c1 11148 +∞cpnf 11284 -∞cmnf 11285 − cmin 11483 -cneg 11484 / cdiv 11910 2c2 12311 (,)cioo 13370 (,]cioc 13371 [,)cico 13372 ↑cexp 14073 √csqrt 15231 ↾t crest 17428 TopOpenctopn 17429 topGenctg 17445 ℂfldccnfld 21337 Clsdccld 23006 D cdv 25878 arccoscacos 26886 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-10 2130 ax-11 2147 ax-12 2167 ax-ext 2697 ax-rep 5281 ax-sep 5295 ax-nul 5302 ax-pow 5360 ax-pr 5424 ax-un 7736 ax-inf2 9675 ax-cnex 11203 ax-resscn 11204 ax-1cn 11205 ax-icn 11206 ax-addcl 11207 ax-addrcl 11208 ax-mulcl 11209 ax-mulrcl 11210 ax-mulcom 11211 ax-addass 11212 ax-mulass 11213 ax-distr 11214 ax-i2m1 11215 ax-1ne0 11216 ax-1rid 11217 ax-rnegex 11218 ax-rrecex 11219 ax-cnre 11220 ax-pre-lttri 11221 ax-pre-lttrn 11222 ax-pre-ltadd 11223 ax-pre-mulgt0 11224 ax-pre-sup 11225 ax-addf 11226 |
This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1537 df-fal 1547 df-ex 1775 df-nf 1779 df-sb 2061 df-mo 2529 df-eu 2558 df-clab 2704 df-cleq 2718 df-clel 2803 df-nfc 2878 df-ne 2931 df-nel 3037 df-ral 3052 df-rex 3061 df-rmo 3365 df-reu 3366 df-rab 3421 df-v 3465 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3967 df-nul 4324 df-if 4525 df-pw 4600 df-sn 4625 df-pr 4627 df-tp 4629 df-op 4631 df-uni 4907 df-int 4948 df-iun 4996 df-iin 4997 df-br 5145 df-opab 5207 df-mpt 5228 df-tr 5262 df-id 5571 df-eprel 5577 df-po 5585 df-so 5586 df-fr 5628 df-se 5629 df-we 5630 df-xp 5679 df-rel 5680 df-cnv 5681 df-co 5682 df-dm 5683 df-rn 5684 df-res 5685 df-ima 5686 df-pred 6303 df-ord 6369 df-on 6370 df-lim 6371 df-suc 6372 df-iota 6496 df-fun 6546 df-fn 6547 df-f 6548 df-f1 6549 df-fo 6550 df-f1o 6551 df-fv 6552 df-isom 6553 df-riota 7370 df-ov 7417 df-oprab 7418 df-mpo 7419 df-of 7680 df-om 7867 df-1st 7993 df-2nd 7994 df-supp 8165 df-frecs 8286 df-wrecs 8317 df-recs 8391 df-rdg 8430 df-1o 8486 df-2o 8487 df-er 8724 df-map 8847 df-pm 8848 df-ixp 8917 df-en 8965 df-dom 8966 df-sdom 8967 df-fin 8968 df-fsupp 9397 df-fi 9445 df-sup 9476 df-inf 9477 df-oi 9544 df-card 9973 df-pnf 11289 df-mnf 11290 df-xr 11291 df-ltxr 11292 df-le 11293 df-sub 11485 df-neg 11486 df-div 11911 df-nn 12257 df-2 12319 df-3 12320 df-4 12321 df-5 12322 df-6 12323 df-7 12324 df-8 12325 df-9 12326 df-n0 12517 df-z 12603 df-dec 12722 df-uz 12867 df-q 12977 df-rp 13021 df-xneg 13138 df-xadd 13139 df-xmul 13140 df-ioo 13374 df-ioc 13375 df-ico 13376 df-icc 13377 df-fz 13531 df-fzo 13674 df-fl 13804 df-mod 13882 df-seq 14014 df-exp 14074 df-fac 14284 df-bc 14313 df-hash 14341 df-shft 15065 df-cj 15097 df-re 15098 df-im 15099 df-sqrt 15233 df-abs 15234 df-limsup 15466 df-clim 15483 df-rlim 15484 df-sum 15684 df-ef 16062 df-sin 16064 df-cos 16065 df-tan 16066 df-pi 16067 df-struct 17142 df-sets 17159 df-slot 17177 df-ndx 17189 df-base 17207 df-ress 17236 df-plusg 17272 df-mulr 17273 df-starv 17274 df-sca 17275 df-vsca 17276 df-ip 17277 df-tset 17278 df-ple 17279 df-ds 17281 df-unif 17282 df-hom 17283 df-cco 17284 df-rest 17430 df-topn 17431 df-0g 17449 df-gsum 17450 df-topgen 17451 df-pt 17452 df-prds 17455 df-xrs 17510 df-qtop 17515 df-imas 17516 df-xps 17518 df-mre 17592 df-mrc 17593 df-acs 17595 df-mgm 18626 df-sgrp 18705 df-mnd 18721 df-submnd 18767 df-mulg 19056 df-cntz 19305 df-cmn 19774 df-psmet 21329 df-xmet 21330 df-met 21331 df-bl 21332 df-mopn 21333 df-fbas 21334 df-fg 21335 df-cnfld 21338 df-top 22882 df-topon 22899 df-topsp 22921 df-bases 22935 df-cld 23009 df-ntr 23010 df-cls 23011 df-nei 23088 df-lp 23126 df-perf 23127 df-cn 23217 df-cnp 23218 df-haus 23305 df-cmp 23377 df-tx 23552 df-hmeo 23745 df-fil 23836 df-fm 23928 df-flim 23929 df-flf 23930 df-xms 24312 df-ms 24313 df-tms 24314 df-cncf 24884 df-limc 25881 df-dv 25882 df-log 26578 df-cxp 26579 df-asin 26888 df-acos 26889 |
This theorem is referenced by: (None) |
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