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Theorem climres 14306
Description: A function restricted to upper integers converges iff the original function converges. (Contributed by Mario Carneiro, 13-Jul-2013.) (Revised by Mario Carneiro, 31-Jan-2014.)
Assertion
Ref Expression
climres  |-  ( ( M  e.  ZZ  /\  F  e.  V )  ->  ( ( F  |`  ( ZZ>= `  M )
)  ~~>  A  <->  F  ~~>  A ) )

Proof of Theorem climres
Dummy variable  k is distinct from all other variables.
StepHypRef Expression
1 eqid 2622 . 2  |-  ( ZZ>= `  M )  =  (
ZZ>= `  M )
2 resexg 5442 . . 3  |-  ( F  e.  V  ->  ( F  |`  ( ZZ>= `  M
) )  e.  _V )
32adantl 482 . 2  |-  ( ( M  e.  ZZ  /\  F  e.  V )  ->  ( F  |`  ( ZZ>=
`  M ) )  e.  _V )
4 simpr 477 . 2  |-  ( ( M  e.  ZZ  /\  F  e.  V )  ->  F  e.  V )
5 simpl 473 . 2  |-  ( ( M  e.  ZZ  /\  F  e.  V )  ->  M  e.  ZZ )
6 fvres 6207 . . 3  |-  ( k  e.  ( ZZ>= `  M
)  ->  ( ( F  |`  ( ZZ>= `  M
) ) `  k
)  =  ( F `
 k ) )
76adantl 482 . 2  |-  ( ( ( M  e.  ZZ  /\  F  e.  V )  /\  k  e.  (
ZZ>= `  M ) )  ->  ( ( F  |`  ( ZZ>= `  M )
) `  k )  =  ( F `  k ) )
81, 3, 4, 5, 7climeq 14298 1  |-  ( ( M  e.  ZZ  /\  F  e.  V )  ->  ( ( F  |`  ( ZZ>= `  M )
)  ~~>  A  <->  F  ~~>  A ) )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    <-> wb 196    /\ wa 384    = wceq 1483    e. wcel 1990   _Vcvv 3200   class class class wbr 4653    |` cres 5116   ` cfv 5888   ZZcz 11377   ZZ>=cuz 11687    ~~> cli 14215
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949  ax-cnex 9992  ax-resscn 9993  ax-pre-lttri 10010  ax-pre-lttrn 10011
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1038  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-nel 2898  df-ral 2917  df-rex 2918  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-op 4184  df-uni 4437  df-br 4654  df-opab 4713  df-mpt 4730  df-id 5024  df-po 5035  df-so 5036  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-ov 6653  df-er 7742  df-en 7956  df-dom 7957  df-sdom 7958  df-pnf 10076  df-mnf 10077  df-xr 10078  df-ltxr 10079  df-le 10080  df-neg 10269  df-z 11378  df-uz 11688  df-clim 14219
This theorem is referenced by:  sumrb  14444  divcnvshft  14587  prodrblem2  14661  iscmet3lem3  23088  leibpilem2  24668  lgamcvg2  24781  divcnvlin  31618  radcnvrat  38513  hashnzfzclim  38521  climresmpt  39891  xlimclim2lem  40065  climxlim2  40072
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