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Theorem limcresi 22052
Description: Any limit of  F is also a limit of the restriction of  F. (Contributed by Mario Carneiro, 28-Dec-2016.)
Assertion
Ref Expression
limcresi  |-  ( F lim
CC  B )  C_  ( ( F  |`  C ) lim CC  B )

Proof of Theorem limcresi
Dummy variables  v  u  x are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 limcrcl 22041 . . . . . . 7  |-  ( x  e.  ( F lim CC  B )  ->  ( F : dom  F --> CC  /\  dom  F  C_  CC  /\  B  e.  CC ) )
21simp1d 1008 . . . . . 6  |-  ( x  e.  ( F lim CC  B )  ->  F : dom  F --> CC )
31simp2d 1009 . . . . . 6  |-  ( x  e.  ( F lim CC  B )  ->  dom  F 
C_  CC )
41simp3d 1010 . . . . . 6  |-  ( x  e.  ( F lim CC  B )  ->  B  e.  CC )
5 eqid 2467 . . . . . 6  |-  ( TopOpen ` fld )  =  ( TopOpen ` fld )
62, 3, 4, 5ellimc2 22044 . . . . 5  |-  ( x  e.  ( F lim CC  B )  ->  (
x  e.  ( F lim
CC  B )  <->  ( x  e.  CC  /\  A. u  e.  ( TopOpen ` fld ) ( x  e.  u  ->  E. v  e.  ( TopOpen ` fld ) ( B  e.  v  /\  ( F
" ( v  i^i  ( dom  F  \  { B } ) ) )  C_  u )
) ) ) )
76ibi 241 . . . 4  |-  ( x  e.  ( F lim CC  B )  ->  (
x  e.  CC  /\  A. u  e.  ( TopOpen ` fld )
( x  e.  u  ->  E. v  e.  (
TopOpen ` fld ) ( B  e.  v  /\  ( F
" ( v  i^i  ( dom  F  \  { B } ) ) )  C_  u )
) ) )
8 inss2 3719 . . . . . . . . . . . . 13  |-  ( v  i^i  ( ( dom 
F  i^i  C )  \  { B } ) )  C_  ( ( dom  F  i^i  C ) 
\  { B }
)
9 difss 3631 . . . . . . . . . . . . . 14  |-  ( ( dom  F  i^i  C
)  \  { B } )  C_  ( dom  F  i^i  C )
10 inss2 3719 . . . . . . . . . . . . . 14  |-  ( dom 
F  i^i  C )  C_  C
119, 10sstri 3513 . . . . . . . . . . . . 13  |-  ( ( dom  F  i^i  C
)  \  { B } )  C_  C
128, 11sstri 3513 . . . . . . . . . . . 12  |-  ( v  i^i  ( ( dom 
F  i^i  C )  \  { B } ) )  C_  C
13 resima2 5307 . . . . . . . . . . . 12  |-  ( ( v  i^i  ( ( dom  F  i^i  C
)  \  { B } ) )  C_  C  ->  ( ( F  |`  C ) " (
v  i^i  ( ( dom  F  i^i  C ) 
\  { B }
) ) )  =  ( F " (
v  i^i  ( ( dom  F  i^i  C ) 
\  { B }
) ) ) )
1412, 13ax-mp 5 . . . . . . . . . . 11  |-  ( ( F  |`  C ) " ( v  i^i  ( ( dom  F  i^i  C )  \  { B } ) ) )  =  ( F "
( v  i^i  (
( dom  F  i^i  C )  \  { B } ) ) )
15 inss1 3718 . . . . . . . . . . . . 13  |-  ( dom 
F  i^i  C )  C_ 
dom  F
16 ssdif 3639 . . . . . . . . . . . . 13  |-  ( ( dom  F  i^i  C
)  C_  dom  F  -> 
( ( dom  F  i^i  C )  \  { B } )  C_  ( dom  F  \  { B } ) )
1715, 16ax-mp 5 . . . . . . . . . . . 12  |-  ( ( dom  F  i^i  C
)  \  { B } )  C_  ( dom  F  \  { B } )
18 sslin 3724 . . . . . . . . . . . 12  |-  ( ( ( dom  F  i^i  C )  \  { B } )  C_  ( dom  F  \  { B } )  ->  (
v  i^i  ( ( dom  F  i^i  C ) 
\  { B }
) )  C_  (
v  i^i  ( dom  F 
\  { B }
) ) )
19 imass2 5372 . . . . . . . . . . . 12  |-  ( ( v  i^i  ( ( dom  F  i^i  C
)  \  { B } ) )  C_  ( v  i^i  ( dom  F  \  { B } ) )  -> 
( F " (
v  i^i  ( ( dom  F  i^i  C ) 
\  { B }
) ) )  C_  ( F " ( v  i^i  ( dom  F  \  { B } ) ) ) )
2017, 18, 19mp2b 10 . . . . . . . . . . 11  |-  ( F
" ( v  i^i  ( ( dom  F  i^i  C )  \  { B } ) ) ) 
C_  ( F "
( v  i^i  ( dom  F  \  { B } ) ) )
2114, 20eqsstri 3534 . . . . . . . . . 10  |-  ( ( F  |`  C ) " ( v  i^i  ( ( dom  F  i^i  C )  \  { B } ) ) ) 
C_  ( F "
( v  i^i  ( dom  F  \  { B } ) ) )
22 sstr 3512 . . . . . . . . . 10  |-  ( ( ( ( F  |`  C ) " (
v  i^i  ( ( dom  F  i^i  C ) 
\  { B }
) ) )  C_  ( F " ( v  i^i  ( dom  F  \  { B } ) ) )  /\  ( F " ( v  i^i  ( dom  F  \  { B } ) ) )  C_  u )  ->  ( ( F  |`  C ) " (
v  i^i  ( ( dom  F  i^i  C ) 
\  { B }
) ) )  C_  u )
2321, 22mpan 670 . . . . . . . . 9  |-  ( ( F " ( v  i^i  ( dom  F  \  { B } ) ) )  C_  u  ->  ( ( F  |`  C ) " (
v  i^i  ( ( dom  F  i^i  C ) 
\  { B }
) ) )  C_  u )
2423anim2i 569 . . . . . . . 8  |-  ( ( B  e.  v  /\  ( F " ( v  i^i  ( dom  F  \  { B } ) ) )  C_  u
)  ->  ( B  e.  v  /\  (
( F  |`  C )
" ( v  i^i  ( ( dom  F  i^i  C )  \  { B } ) ) ) 
C_  u ) )
2524reximi 2932 . . . . . . 7  |-  ( E. v  e.  ( TopOpen ` fld )
( B  e.  v  /\  ( F "
( v  i^i  ( dom  F  \  { B } ) ) ) 
C_  u )  ->  E. v  e.  ( TopOpen
` fld
) ( B  e.  v  /\  ( ( F  |`  C ) " ( v  i^i  ( ( dom  F  i^i  C )  \  { B } ) ) ) 
C_  u ) )
2625imim2i 14 . . . . . 6  |-  ( ( x  e.  u  ->  E. v  e.  ( TopOpen
` fld
) ( B  e.  v  /\  ( F
" ( v  i^i  ( dom  F  \  { B } ) ) )  C_  u )
)  ->  ( x  e.  u  ->  E. v  e.  ( TopOpen ` fld ) ( B  e.  v  /\  ( ( F  |`  C ) " ( v  i^i  ( ( dom  F  i^i  C )  \  { B } ) ) ) 
C_  u ) ) )
2726ralimi 2857 . . . . 5  |-  ( A. u  e.  ( TopOpen ` fld )
( x  e.  u  ->  E. v  e.  (
TopOpen ` fld ) ( B  e.  v  /\  ( F
" ( v  i^i  ( dom  F  \  { B } ) ) )  C_  u )
)  ->  A. u  e.  ( TopOpen ` fld ) ( x  e.  u  ->  E. v  e.  ( TopOpen ` fld ) ( B  e.  v  /\  ( ( F  |`  C ) " ( v  i^i  ( ( dom  F  i^i  C )  \  { B } ) ) ) 
C_  u ) ) )
2827anim2i 569 . . . 4  |-  ( ( x  e.  CC  /\  A. u  e.  ( TopOpen ` fld )
( x  e.  u  ->  E. v  e.  (
TopOpen ` fld ) ( B  e.  v  /\  ( F
" ( v  i^i  ( dom  F  \  { B } ) ) )  C_  u )
) )  ->  (
x  e.  CC  /\  A. u  e.  ( TopOpen ` fld )
( x  e.  u  ->  E. v  e.  (
TopOpen ` fld ) ( B  e.  v  /\  ( ( F  |`  C ) " ( v  i^i  ( ( dom  F  i^i  C )  \  { B } ) ) ) 
C_  u ) ) ) )
297, 28syl 16 . . 3  |-  ( x  e.  ( F lim CC  B )  ->  (
x  e.  CC  /\  A. u  e.  ( TopOpen ` fld )
( x  e.  u  ->  E. v  e.  (
TopOpen ` fld ) ( B  e.  v  /\  ( ( F  |`  C ) " ( v  i^i  ( ( dom  F  i^i  C )  \  { B } ) ) ) 
C_  u ) ) ) )
30 fresin 5754 . . . . 5  |-  ( F : dom  F --> CC  ->  ( F  |`  C ) : ( dom  F  i^i  C ) --> CC )
312, 30syl 16 . . . 4  |-  ( x  e.  ( F lim CC  B )  ->  ( F  |`  C ) : ( dom  F  i^i  C ) --> CC )
3215, 3syl5ss 3515 . . . 4  |-  ( x  e.  ( F lim CC  B )  ->  ( dom  F  i^i  C ) 
C_  CC )
3331, 32, 4, 5ellimc2 22044 . . 3  |-  ( x  e.  ( F lim CC  B )  ->  (
x  e.  ( ( F  |`  C ) lim CC  B )  <->  ( x  e.  CC  /\  A. u  e.  ( TopOpen ` fld ) ( x  e.  u  ->  E. v  e.  ( TopOpen ` fld ) ( B  e.  v  /\  ( ( F  |`  C ) " ( v  i^i  ( ( dom  F  i^i  C )  \  { B } ) ) ) 
C_  u ) ) ) ) )
3429, 33mpbird 232 . 2  |-  ( x  e.  ( F lim CC  B )  ->  x  e.  ( ( F  |`  C ) lim CC  B ) )
3534ssriv 3508 1  |-  ( F lim
CC  B )  C_  ( ( F  |`  C ) lim CC  B )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    /\ wa 369    = wceq 1379    e. wcel 1767   A.wral 2814   E.wrex 2815    \ cdif 3473    i^i cin 3475    C_ wss 3476   {csn 4027   dom cdm 4999    |` cres 5001   "cima 5002   -->wf 5584   ` cfv 5588  (class class class)co 6284   CCcc 9490   TopOpenctopn 14677  ℂfldccnfld 18219   lim CC climc 22029
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1601  ax-4 1612  ax-5 1680  ax-6 1719  ax-7 1739  ax-8 1769  ax-9 1771  ax-10 1786  ax-11 1791  ax-12 1803  ax-13 1968  ax-ext 2445  ax-rep 4558  ax-sep 4568  ax-nul 4576  ax-pow 4625  ax-pr 4686  ax-un 6576  ax-cnex 9548  ax-resscn 9549  ax-1cn 9550  ax-icn 9551  ax-addcl 9552  ax-addrcl 9553  ax-mulcl 9554  ax-mulrcl 9555  ax-mulcom 9556  ax-addass 9557  ax-mulass 9558  ax-distr 9559  ax-i2m1 9560  ax-1ne0 9561  ax-1rid 9562  ax-rnegex 9563  ax-rrecex 9564  ax-cnre 9565  ax-pre-lttri 9566  ax-pre-lttrn 9567  ax-pre-ltadd 9568  ax-pre-mulgt0 9569  ax-pre-sup 9570
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3or 974  df-3an 975  df-tru 1382  df-ex 1597  df-nf 1600  df-sb 1712  df-eu 2279  df-mo 2280  df-clab 2453  df-cleq 2459  df-clel 2462  df-nfc 2617  df-ne 2664  df-nel 2665  df-ral 2819  df-rex 2820  df-reu 2821  df-rmo 2822  df-rab 2823  df-v 3115  df-sbc 3332  df-csb 3436  df-dif 3479  df-un 3481  df-in 3483  df-ss 3490  df-pss 3492  df-nul 3786  df-if 3940  df-pw 4012  df-sn 4028  df-pr 4030  df-tp 4032  df-op 4034  df-uni 4246  df-int 4283  df-iun 4327  df-br 4448  df-opab 4506  df-mpt 4507  df-tr 4541  df-eprel 4791  df-id 4795  df-po 4800  df-so 4801  df-fr 4838  df-we 4840  df-ord 4881  df-on 4882  df-lim 4883  df-suc 4884  df-xp 5005  df-rel 5006  df-cnv 5007  df-co 5008  df-dm 5009  df-rn 5010  df-res 5011  df-ima 5012  df-iota 5551  df-fun 5590  df-fn 5591  df-f 5592  df-f1 5593  df-fo 5594  df-f1o 5595  df-fv 5596  df-riota 6245  df-ov 6287  df-oprab 6288  df-mpt2 6289  df-om 6685  df-1st 6784  df-2nd 6785  df-recs 7042  df-rdg 7076  df-1o 7130  df-oadd 7134  df-er 7311  df-map 7422  df-pm 7423  df-en 7517  df-dom 7518  df-sdom 7519  df-fin 7520  df-fi 7871  df-sup 7901  df-pnf 9630  df-mnf 9631  df-xr 9632  df-ltxr 9633  df-le 9634  df-sub 9807  df-neg 9808  df-div 10207  df-nn 10537  df-2 10594  df-3 10595  df-4 10596  df-5 10597  df-6 10598  df-7 10599  df-8 10600  df-9 10601  df-10 10602  df-n0 10796  df-z 10865  df-dec 10977  df-uz 11083  df-q 11183  df-rp 11221  df-xneg 11318  df-xadd 11319  df-xmul 11320  df-fz 11673  df-seq 12076  df-exp 12135  df-cj 12895  df-re 12896  df-im 12897  df-sqrt 13031  df-abs 13032  df-struct 14492  df-ndx 14493  df-slot 14494  df-base 14495  df-plusg 14568  df-mulr 14569  df-starv 14570  df-tset 14574  df-ple 14575  df-ds 14577  df-unif 14578  df-rest 14678  df-topn 14679  df-topgen 14699  df-psmet 18210  df-xmet 18211  df-met 18212  df-bl 18213  df-mopn 18214  df-cnfld 18220  df-top 19194  df-bases 19196  df-topon 19197  df-topsp 19198  df-cnp 19523  df-xms 20586  df-ms 20587  df-limc 22033
This theorem is referenced by:  limciun  22061  dvres2lem  22077  dvidlem  22082  dvcnp2  22086  dvcobr  22112  dvcnvlem  22140  lhop1lem  22177  lhop2  22179  lhop  22180  taylthlem2  22531  fourierdlem32  31467  fourierdlem33  31468  fourierdlem46  31481  fourierdlem74  31509  fourierdlem75  31510  fourierdlem84  31519  fourierdlem85  31520  fourierdlem88  31523  fouriercnp  31555  fouriercn  31561
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