Users' Mathboxes Mathbox for Scott Fenton < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >   Mathboxes  >  ntrivcvg Structured version   Unicode version

Theorem ntrivcvg 27259
Description: A non-trivially converging infinite product converges. (Contributed by Scott Fenton, 18-Dec-2017.)
Hypotheses
Ref Expression
ntrivcvg.1  |-  Z  =  ( ZZ>= `  M )
ntrivcvg.2  |-  ( ph  ->  E. n  e.  Z  E. y ( y  =/=  0  /\  seq n
(  x.  ,  F
)  ~~>  y ) )
ntrivcvg.3  |-  ( (
ph  /\  k  e.  Z )  ->  ( F `  k )  e.  CC )
Assertion
Ref Expression
ntrivcvg  |-  ( ph  ->  seq M (  x.  ,  F )  e. 
dom 
~~>  )
Distinct variable groups:    k, F, n, y    ph, k, y   
k, M, n, y    ph, n, y    k, Z, y
Allowed substitution hint:    Z( n)

Proof of Theorem ntrivcvg
StepHypRef Expression
1 ntrivcvg.2 . 2  |-  ( ph  ->  E. n  e.  Z  E. y ( y  =/=  0  /\  seq n
(  x.  ,  F
)  ~~>  y ) )
2 uzm1 10879 . . . . . . . . 9  |-  ( n  e.  ( ZZ>= `  M
)  ->  ( n  =  M  \/  (
n  -  1 )  e.  ( ZZ>= `  M
) ) )
3 ntrivcvg.1 . . . . . . . . 9  |-  Z  =  ( ZZ>= `  M )
42, 3eleq2s 2525 . . . . . . . 8  |-  ( n  e.  Z  ->  (
n  =  M  \/  ( n  -  1
)  e.  ( ZZ>= `  M ) ) )
54ad2antlr 719 . . . . . . 7  |-  ( ( ( ph  /\  n  e.  Z )  /\  seq n (  x.  ,  F )  ~~>  y )  ->  ( n  =  M  \/  ( n  -  1 )  e.  ( ZZ>= `  M )
) )
6 seqeq1 11793 . . . . . . . . . . 11  |-  ( n  =  M  ->  seq n (  x.  ,  F )  =  seq M (  x.  ,  F ) )
76breq1d 4290 . . . . . . . . . 10  |-  ( n  =  M  ->  (  seq n (  x.  ,  F )  ~~>  y  <->  seq M (  x.  ,  F )  ~~>  y ) )
8 seqex 11792 . . . . . . . . . . 11  |-  seq M
(  x.  ,  F
)  e.  _V
9 vex 2965 . . . . . . . . . . 11  |-  y  e. 
_V
108, 9breldm 5031 . . . . . . . . . 10  |-  (  seq M (  x.  ,  F )  ~~>  y  ->  seq M (  x.  ,  F )  e.  dom  ~~>  )
117, 10syl6bi 228 . . . . . . . . 9  |-  ( n  =  M  ->  (  seq n (  x.  ,  F )  ~~>  y  ->  seq M (  x.  ,  F )  e.  dom  ~~>  ) )
1211adantld 464 . . . . . . . 8  |-  ( n  =  M  ->  (
( ( ph  /\  n  e.  Z )  /\  seq n (  x.  ,  F )  ~~>  y )  ->  seq M (  x.  ,  F )  e. 
dom 
~~>  ) )
13 simplr 747 . . . . . . . . . . . . 13  |-  ( ( ( ( ph  /\  n  e.  Z )  /\  ( n  -  1 )  e.  Z )  /\  seq n (  x.  ,  F )  ~~>  y )  ->  (
n  -  1 )  e.  Z )
14 ntrivcvg.3 . . . . . . . . . . . . . . . 16  |-  ( (
ph  /\  k  e.  Z )  ->  ( F `  k )  e.  CC )
1514adantlr 707 . . . . . . . . . . . . . . 15  |-  ( ( ( ph  /\  n  e.  Z )  /\  k  e.  Z )  ->  ( F `  k )  e.  CC )
1615adantlr 707 . . . . . . . . . . . . . 14  |-  ( ( ( ( ph  /\  n  e.  Z )  /\  ( n  -  1 )  e.  Z )  /\  k  e.  Z
)  ->  ( F `  k )  e.  CC )
1716adantlr 707 . . . . . . . . . . . . 13  |-  ( ( ( ( ( ph  /\  n  e.  Z )  /\  ( n  - 
1 )  e.  Z
)  /\  seq n
(  x.  ,  F
)  ~~>  y )  /\  k  e.  Z )  ->  ( F `  k
)  e.  CC )
18 uzssz 10868 . . . . . . . . . . . . . . . . . . . 20  |-  ( ZZ>= `  M )  C_  ZZ
193, 18eqsstri 3374 . . . . . . . . . . . . . . . . . . 19  |-  Z  C_  ZZ
20 simplr 747 . . . . . . . . . . . . . . . . . . 19  |-  ( ( ( ph  /\  n  e.  Z )  /\  (
n  -  1 )  e.  Z )  ->  n  e.  Z )
2119, 20sseldi 3342 . . . . . . . . . . . . . . . . . 18  |-  ( ( ( ph  /\  n  e.  Z )  /\  (
n  -  1 )  e.  Z )  ->  n  e.  ZZ )
2221zcnd 10736 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ph  /\  n  e.  Z )  /\  (
n  -  1 )  e.  Z )  ->  n  e.  CC )
23 ax-1cn 9328 . . . . . . . . . . . . . . . . . 18  |-  1  e.  CC
2423a1i 11 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ph  /\  n  e.  Z )  /\  (
n  -  1 )  e.  Z )  -> 
1  e.  CC )
2522, 24npcand 9711 . . . . . . . . . . . . . . . 16  |-  ( ( ( ph  /\  n  e.  Z )  /\  (
n  -  1 )  e.  Z )  -> 
( ( n  - 
1 )  +  1 )  =  n )
2625seqeq1d 11796 . . . . . . . . . . . . . . 15  |-  ( ( ( ph  /\  n  e.  Z )  /\  (
n  -  1 )  e.  Z )  ->  seq ( ( n  - 
1 )  +  1 ) (  x.  ,  F )  =  seq n (  x.  ,  F ) )
2726breq1d 4290 . . . . . . . . . . . . . 14  |-  ( ( ( ph  /\  n  e.  Z )  /\  (
n  -  1 )  e.  Z )  -> 
(  seq ( ( n  -  1 )  +  1 ) (  x.  ,  F )  ~~>  y  <->  seq n
(  x.  ,  F
)  ~~>  y ) )
2827biimpar 482 . . . . . . . . . . . . 13  |-  ( ( ( ( ph  /\  n  e.  Z )  /\  ( n  -  1 )  e.  Z )  /\  seq n (  x.  ,  F )  ~~>  y )  ->  seq ( ( n  - 
1 )  +  1 ) (  x.  ,  F )  ~~>  y )
293, 13, 17, 28clim2prod 27250 . . . . . . . . . . . 12  |-  ( ( ( ( ph  /\  n  e.  Z )  /\  ( n  -  1 )  e.  Z )  /\  seq n (  x.  ,  F )  ~~>  y )  ->  seq M (  x.  ,  F )  ~~>  ( (  seq M (  x.  ,  F ) `  ( n  -  1
) )  x.  y
) )
30 ovex 6105 . . . . . . . . . . . . 13  |-  ( (  seq M (  x.  ,  F ) `  ( n  -  1
) )  x.  y
)  e.  _V
318, 30breldm 5031 . . . . . . . . . . . 12  |-  (  seq M (  x.  ,  F )  ~~>  ( (  seq M (  x.  ,  F ) `  ( n  -  1
) )  x.  y
)  ->  seq M (  x.  ,  F )  e.  dom  ~~>  )
3229, 31syl 16 . . . . . . . . . . 11  |-  ( ( ( ( ph  /\  n  e.  Z )  /\  ( n  -  1 )  e.  Z )  /\  seq n (  x.  ,  F )  ~~>  y )  ->  seq M (  x.  ,  F )  e.  dom  ~~>  )
3332an32s 795 . . . . . . . . . 10  |-  ( ( ( ( ph  /\  n  e.  Z )  /\  seq n (  x.  ,  F )  ~~>  y )  /\  ( n  - 
1 )  e.  Z
)  ->  seq M (  x.  ,  F )  e.  dom  ~~>  )
3433expcom 435 . . . . . . . . 9  |-  ( ( n  -  1 )  e.  Z  ->  (
( ( ph  /\  n  e.  Z )  /\  seq n (  x.  ,  F )  ~~>  y )  ->  seq M (  x.  ,  F )  e. 
dom 
~~>  ) )
353eqcomi 2437 . . . . . . . . 9  |-  ( ZZ>= `  M )  =  Z
3634, 35eleq2s 2525 . . . . . . . 8  |-  ( ( n  -  1 )  e.  ( ZZ>= `  M
)  ->  ( (
( ph  /\  n  e.  Z )  /\  seq n (  x.  ,  F )  ~~>  y )  ->  seq M (  x.  ,  F )  e. 
dom 
~~>  ) )
3712, 36jaoi 379 . . . . . . 7  |-  ( ( n  =  M  \/  ( n  -  1
)  e.  ( ZZ>= `  M ) )  -> 
( ( ( ph  /\  n  e.  Z )  /\  seq n (  x.  ,  F )  ~~>  y )  ->  seq M (  x.  ,  F )  e.  dom  ~~>  ) )
385, 37mpcom 36 . . . . . 6  |-  ( ( ( ph  /\  n  e.  Z )  /\  seq n (  x.  ,  F )  ~~>  y )  ->  seq M (  x.  ,  F )  e. 
dom 
~~>  )
3938ex 434 . . . . 5  |-  ( (
ph  /\  n  e.  Z )  ->  (  seq n (  x.  ,  F )  ~~>  y  ->  seq M (  x.  ,  F )  e.  dom  ~~>  ) )
4039adantld 464 . . . 4  |-  ( (
ph  /\  n  e.  Z )  ->  (
( y  =/=  0  /\  seq n (  x.  ,  F )  ~~>  y )  ->  seq M (  x.  ,  F )  e. 
dom 
~~>  ) )
4140exlimdv 1689 . . 3  |-  ( (
ph  /\  n  e.  Z )  ->  ( E. y ( y  =/=  0  /\  seq n
(  x.  ,  F
)  ~~>  y )  ->  seq M (  x.  ,  F )  e.  dom  ~~>  ) )
4241rexlimdva 2831 . 2  |-  ( ph  ->  ( E. n  e.  Z  E. y ( y  =/=  0  /\ 
seq n (  x.  ,  F )  ~~>  y )  ->  seq M (  x.  ,  F )  e. 
dom 
~~>  ) )
431, 42mpd 15 1  |-  ( ph  ->  seq M (  x.  ,  F )  e. 
dom 
~~>  )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    \/ wo 368    /\ wa 369    = wceq 1362   E.wex 1589    e. wcel 1755    =/= wne 2596   E.wrex 2706   class class class wbr 4280   dom cdm 4827   ` cfv 5406  (class class class)co 6080   CCcc 9268   0cc0 9270   1c1 9271    + caddc 9273    x. cmul 9275    - cmin 9583   ZZcz 10634   ZZ>=cuz 10849    seqcseq 11790    ~~> cli 12946
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1594  ax-4 1605  ax-5 1669  ax-6 1707  ax-7 1727  ax-8 1757  ax-9 1759  ax-10 1774  ax-11 1779  ax-12 1791  ax-13 1942  ax-ext 2414  ax-rep 4391  ax-sep 4401  ax-nul 4409  ax-pow 4458  ax-pr 4519  ax-un 6361  ax-inf2 7835  ax-cnex 9326  ax-resscn 9327  ax-1cn 9328  ax-icn 9329  ax-addcl 9330  ax-addrcl 9331  ax-mulcl 9332  ax-mulrcl 9333  ax-mulcom 9334  ax-addass 9335  ax-mulass 9336  ax-distr 9337  ax-i2m1 9338  ax-1ne0 9339  ax-1rid 9340  ax-rnegex 9341  ax-rrecex 9342  ax-cnre 9343  ax-pre-lttri 9344  ax-pre-lttrn 9345  ax-pre-ltadd 9346  ax-pre-mulgt0 9347  ax-pre-sup 9348
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3or 959  df-3an 960  df-tru 1365  df-ex 1590  df-nf 1593  df-sb 1700  df-eu 2258  df-mo 2259  df-clab 2420  df-cleq 2426  df-clel 2429  df-nfc 2558  df-ne 2598  df-nel 2599  df-ral 2710  df-rex 2711  df-reu 2712  df-rmo 2713  df-rab 2714  df-v 2964  df-sbc 3176  df-csb 3277  df-dif 3319  df-un 3321  df-in 3323  df-ss 3330  df-pss 3332  df-nul 3626  df-if 3780  df-pw 3850  df-sn 3866  df-pr 3868  df-tp 3870  df-op 3872  df-uni 4080  df-iun 4161  df-br 4281  df-opab 4339  df-mpt 4340  df-tr 4374  df-eprel 4619  df-id 4623  df-po 4628  df-so 4629  df-fr 4666  df-we 4668  df-ord 4709  df-on 4710  df-lim 4711  df-suc 4712  df-xp 4833  df-rel 4834  df-cnv 4835  df-co 4836  df-dm 4837  df-rn 4838  df-res 4839  df-ima 4840  df-iota 5369  df-fun 5408  df-fn 5409  df-f 5410  df-f1 5411  df-fo 5412  df-f1o 5413  df-fv 5414  df-riota 6039  df-ov 6083  df-oprab 6084  df-mpt2 6085  df-om 6466  df-1st 6566  df-2nd 6567  df-recs 6818  df-rdg 6852  df-er 7089  df-en 7299  df-dom 7300  df-sdom 7301  df-sup 7679  df-pnf 9408  df-mnf 9409  df-xr 9410  df-ltxr 9411  df-le 9412  df-sub 9585  df-neg 9586  df-div 9982  df-nn 10311  df-2 10368  df-3 10369  df-n0 10568  df-z 10635  df-uz 10850  df-rp 10980  df-fz 11425  df-seq 11791  df-exp 11850  df-cj 12572  df-re 12573  df-im 12574  df-sqr 12708  df-abs 12709  df-clim 12950
This theorem is referenced by:  iprodclim2  27346  iprodcl  27348
  Copyright terms: Public domain W3C validator