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Mathbox for Thierry Arnoux |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > cxpcncf1 | Structured version Visualization version GIF version |
Description: The power function on complex numbers, for fixed exponent A, is continuous. Similar to cxpcn 26699. (Contributed by Thierry Arnoux, 20-Dec-2021.) |
Ref | Expression |
---|---|
cxpcncf1.a | β’ (π β π΄ β β) |
cxpcncf1.d | β’ (π β π· β (β β (-β(,]0))) |
Ref | Expression |
---|---|
cxpcncf1 | β’ (π β (π₯ β π· β¦ (π₯βππ΄)) β (π·βcnββ)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cxpcncf1.d | . . 3 β’ (π β π· β (β β (-β(,]0))) | |
2 | resmpt 6046 | . . 3 β’ (π· β (β β (-β(,]0)) β ((π₯ β (β β (-β(,]0)) β¦ (π₯βππ΄)) βΎ π·) = (π₯ β π· β¦ (π₯βππ΄))) | |
3 | 1, 2 | syl 17 | . 2 β’ (π β ((π₯ β (β β (-β(,]0)) β¦ (π₯βππ΄)) βΎ π·) = (π₯ β π· β¦ (π₯βππ΄))) |
4 | eqid 2728 | . . . . . . . 8 β’ (TopOpenββfld) = (TopOpenββfld) | |
5 | 4 | cnfldtopon 24719 | . . . . . . 7 β’ (TopOpenββfld) β (TopOnββ) |
6 | difss 4132 | . . . . . . 7 β’ (β β (-β(,]0)) β β | |
7 | resttopon 23085 | . . . . . . 7 β’ (((TopOpenββfld) β (TopOnββ) β§ (β β (-β(,]0)) β β) β ((TopOpenββfld) βΎt (β β (-β(,]0))) β (TopOnβ(β β (-β(,]0)))) | |
8 | 5, 6, 7 | mp2an 690 | . . . . . 6 β’ ((TopOpenββfld) βΎt (β β (-β(,]0))) β (TopOnβ(β β (-β(,]0))) |
9 | 8 | a1i 11 | . . . . 5 β’ (π β ((TopOpenββfld) βΎt (β β (-β(,]0))) β (TopOnβ(β β (-β(,]0)))) |
10 | 9 | cnmptid 23585 | . . . . 5 β’ (π β (π₯ β (β β (-β(,]0)) β¦ π₯) β (((TopOpenββfld) βΎt (β β (-β(,]0))) Cn ((TopOpenββfld) βΎt (β β (-β(,]0))))) |
11 | 5 | a1i 11 | . . . . . 6 β’ (π β (TopOpenββfld) β (TopOnββ)) |
12 | cxpcncf1.a | . . . . . 6 β’ (π β π΄ β β) | |
13 | 9, 11, 12 | cnmptc 23586 | . . . . 5 β’ (π β (π₯ β (β β (-β(,]0)) β¦ π΄) β (((TopOpenββfld) βΎt (β β (-β(,]0))) Cn (TopOpenββfld))) |
14 | eqid 2728 | . . . . . . 7 β’ (β β (-β(,]0)) = (β β (-β(,]0)) | |
15 | eqid 2728 | . . . . . . 7 β’ ((TopOpenββfld) βΎt (β β (-β(,]0))) = ((TopOpenββfld) βΎt (β β (-β(,]0))) | |
16 | 14, 4, 15 | cxpcn 26699 | . . . . . 6 β’ (π¦ β (β β (-β(,]0)), π§ β β β¦ (π¦βππ§)) β ((((TopOpenββfld) βΎt (β β (-β(,]0))) Γt (TopOpenββfld)) Cn (TopOpenββfld)) |
17 | 16 | a1i 11 | . . . . 5 β’ (π β (π¦ β (β β (-β(,]0)), π§ β β β¦ (π¦βππ§)) β ((((TopOpenββfld) βΎt (β β (-β(,]0))) Γt (TopOpenββfld)) Cn (TopOpenββfld))) |
18 | oveq12 7435 | . . . . 5 β’ ((π¦ = π₯ β§ π§ = π΄) β (π¦βππ§) = (π₯βππ΄)) | |
19 | 9, 10, 13, 9, 11, 17, 18 | cnmpt12 23591 | . . . 4 β’ (π β (π₯ β (β β (-β(,]0)) β¦ (π₯βππ΄)) β (((TopOpenββfld) βΎt (β β (-β(,]0))) Cn (TopOpenββfld))) |
20 | ssid 4004 | . . . . . . 7 β’ β β β | |
21 | 5 | toponrestid 22843 | . . . . . . . 8 β’ (TopOpenββfld) = ((TopOpenββfld) βΎt β) |
22 | 4, 15, 21 | cncfcn 24850 | . . . . . . 7 β’ (((β β (-β(,]0)) β β β§ β β β) β ((β β (-β(,]0))βcnββ) = (((TopOpenββfld) βΎt (β β (-β(,]0))) Cn (TopOpenββfld))) |
23 | 6, 20, 22 | mp2an 690 | . . . . . 6 β’ ((β β (-β(,]0))βcnββ) = (((TopOpenββfld) βΎt (β β (-β(,]0))) Cn (TopOpenββfld)) |
24 | 23 | eqcomi 2737 | . . . . 5 β’ (((TopOpenββfld) βΎt (β β (-β(,]0))) Cn (TopOpenββfld)) = ((β β (-β(,]0))βcnββ) |
25 | 24 | a1i 11 | . . . 4 β’ (π β (((TopOpenββfld) βΎt (β β (-β(,]0))) Cn (TopOpenββfld)) = ((β β (-β(,]0))βcnββ)) |
26 | 19, 25 | eleqtrd 2831 | . . 3 β’ (π β (π₯ β (β β (-β(,]0)) β¦ (π₯βππ΄)) β ((β β (-β(,]0))βcnββ)) |
27 | rescncf 24837 | . . . 4 β’ (π· β (β β (-β(,]0)) β ((π₯ β (β β (-β(,]0)) β¦ (π₯βππ΄)) β ((β β (-β(,]0))βcnββ) β ((π₯ β (β β (-β(,]0)) β¦ (π₯βππ΄)) βΎ π·) β (π·βcnββ))) | |
28 | 27 | imp 405 | . . 3 β’ ((π· β (β β (-β(,]0)) β§ (π₯ β (β β (-β(,]0)) β¦ (π₯βππ΄)) β ((β β (-β(,]0))βcnββ)) β ((π₯ β (β β (-β(,]0)) β¦ (π₯βππ΄)) βΎ π·) β (π·βcnββ)) |
29 | 1, 26, 28 | syl2anc 582 | . 2 β’ (π β ((π₯ β (β β (-β(,]0)) β¦ (π₯βππ΄)) βΎ π·) β (π·βcnββ)) |
30 | 3, 29 | eqeltrrd 2830 | 1 β’ (π β (π₯ β π· β¦ (π₯βππ΄)) β (π·βcnββ)) |
Colors of variables: wff setvar class |
Syntax hints: β wi 4 = wceq 1533 β wcel 2098 β cdif 3946 β wss 3949 β¦ cmpt 5235 βΎ cres 5684 βcfv 6553 (class class class)co 7426 β cmpo 7428 βcc 11144 0cc0 11146 -βcmnf 11284 (,]cioc 13365 βΎt crest 17409 TopOpenctopn 17410 βfldccnfld 21286 TopOnctopon 22832 Cn ccn 23148 Γt ctx 23484 βcnβccncf 24816 βπccxp 26509 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2699 ax-rep 5289 ax-sep 5303 ax-nul 5310 ax-pow 5369 ax-pr 5433 ax-un 7746 ax-inf2 9672 ax-cnex 11202 ax-resscn 11203 ax-1cn 11204 ax-icn 11205 ax-addcl 11206 ax-addrcl 11207 ax-mulcl 11208 ax-mulrcl 11209 ax-mulcom 11210 ax-addass 11211 ax-mulass 11212 ax-distr 11213 ax-i2m1 11214 ax-1ne0 11215 ax-1rid 11216 ax-rnegex 11217 ax-rrecex 11218 ax-cnre 11219 ax-pre-lttri 11220 ax-pre-lttrn 11221 ax-pre-ltadd 11222 ax-pre-mulgt0 11223 ax-pre-sup 11224 ax-addf 11225 |
This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2529 df-eu 2558 df-clab 2706 df-cleq 2720 df-clel 2806 df-nfc 2881 df-ne 2938 df-nel 3044 df-ral 3059 df-rex 3068 df-rmo 3374 df-reu 3375 df-rab 3431 df-v 3475 df-sbc 3779 df-csb 3895 df-dif 3952 df-un 3954 df-in 3956 df-ss 3966 df-pss 3968 df-nul 4327 df-if 4533 df-pw 4608 df-sn 4633 df-pr 4635 df-tp 4637 df-op 4639 df-uni 4913 df-int 4954 df-iun 5002 df-iin 5003 df-br 5153 df-opab 5215 df-mpt 5236 df-tr 5270 df-id 5580 df-eprel 5586 df-po 5594 df-so 5595 df-fr 5637 df-se 5638 df-we 5639 df-xp 5688 df-rel 5689 df-cnv 5690 df-co 5691 df-dm 5692 df-rn 5693 df-res 5694 df-ima 5695 df-pred 6310 df-ord 6377 df-on 6378 df-lim 6379 df-suc 6380 df-iota 6505 df-fun 6555 df-fn 6556 df-f 6557 df-f1 6558 df-fo 6559 df-f1o 6560 df-fv 6561 df-isom 6562 df-riota 7382 df-ov 7429 df-oprab 7430 df-mpo 7431 df-of 7691 df-om 7877 df-1st 7999 df-2nd 8000 df-supp 8172 df-frecs 8293 df-wrecs 8324 df-recs 8398 df-rdg 8437 df-1o 8493 df-2o 8494 df-er 8731 df-map 8853 df-pm 8854 df-ixp 8923 df-en 8971 df-dom 8972 df-sdom 8973 df-fin 8974 df-fsupp 9394 df-fi 9442 df-sup 9473 df-inf 9474 df-oi 9541 df-card 9970 df-pnf 11288 df-mnf 11289 df-xr 11290 df-ltxr 11291 df-le 11292 df-sub 11484 df-neg 11485 df-div 11910 df-nn 12251 df-2 12313 df-3 12314 df-4 12315 df-5 12316 df-6 12317 df-7 12318 df-8 12319 df-9 12320 df-n0 12511 df-z 12597 df-dec 12716 df-uz 12861 df-q 12971 df-rp 13015 df-xneg 13132 df-xadd 13133 df-xmul 13134 df-ioo 13368 df-ioc 13369 df-ico 13370 df-icc 13371 df-fz 13525 df-fzo 13668 df-fl 13797 df-mod 13875 df-seq 14007 df-exp 14067 df-fac 14273 df-bc 14302 df-hash 14330 df-shft 15054 df-cj 15086 df-re 15087 df-im 15088 df-sqrt 15222 df-abs 15223 df-limsup 15455 df-clim 15472 df-rlim 15473 df-sum 15673 df-ef 16051 df-sin 16053 df-cos 16054 df-tan 16055 df-pi 16056 df-struct 17123 df-sets 17140 df-slot 17158 df-ndx 17170 df-base 17188 df-ress 17217 df-plusg 17253 df-mulr 17254 df-starv 17255 df-sca 17256 df-vsca 17257 df-ip 17258 df-tset 17259 df-ple 17260 df-ds 17262 df-unif 17263 df-hom 17264 df-cco 17265 df-rest 17411 df-topn 17412 df-0g 17430 df-gsum 17431 df-topgen 17432 df-pt 17433 df-prds 17436 df-xrs 17491 df-qtop 17496 df-imas 17497 df-xps 17499 df-mre 17573 df-mrc 17574 df-acs 17576 df-mgm 18607 df-sgrp 18686 df-mnd 18702 df-submnd 18748 df-mulg 19031 df-cntz 19275 df-cmn 19744 df-psmet 21278 df-xmet 21279 df-met 21280 df-bl 21281 df-mopn 21282 df-fbas 21283 df-fg 21284 df-cnfld 21287 df-top 22816 df-topon 22833 df-topsp 22855 df-bases 22869 df-cld 22943 df-ntr 22944 df-cls 22945 df-nei 23022 df-lp 23060 df-perf 23061 df-cn 23151 df-cnp 23152 df-haus 23239 df-cmp 23311 df-tx 23486 df-hmeo 23679 df-fil 23770 df-fm 23862 df-flim 23863 df-flf 23864 df-xms 24246 df-ms 24247 df-tms 24248 df-cncf 24818 df-limc 25815 df-dv 25816 df-log 26510 df-cxp 26511 |
This theorem is referenced by: logdivsqrle 34315 |
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