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Theorem cvgratnnlemrate 12081
Description: Lemma for cvgratnn 12082. (Contributed by Jim Kingdon, 21-Nov-2022.)
Hypotheses
Ref Expression
cvgratnn.3  |-  ( ph  ->  A  e.  RR )
cvgratnn.4  |-  ( ph  ->  A  <  1 )
cvgratnn.gt0  |-  ( ph  ->  0  <  A )
cvgratnn.6  |-  ( (
ph  /\  k  e.  NN )  ->  ( F `
 k )  e.  CC )
cvgratnn.7  |-  ( (
ph  /\  k  e.  NN )  ->  ( abs `  ( F `  (
k  +  1 ) ) )  <_  ( A  x.  ( abs `  ( F `  k
) ) ) )
cvgratnnlemrate.m  |-  ( ph  ->  M  e.  NN )
cvgratnnlemrate.n  |-  ( ph  ->  N  e.  ( ZZ>= `  M ) )
Assertion
Ref Expression
cvgratnnlemrate  |-  ( ph  ->  ( abs `  (
(  seq 1 (  +  ,  F ) `  N )  -  (  seq 1 (  +  ,  F ) `  M
) ) )  < 
( ( ( ( ( 1  /  (
( 1  /  A
)  -  1 ) )  /  A )  x.  ( ( abs `  ( F `  1
) )  +  1 ) )  x.  ( A  /  ( 1  -  A ) ) )  /  M ) )
Distinct variable groups:    A, k    k, F    k, N    ph, k    k, M

Proof of Theorem cvgratnnlemrate
Dummy variable  i is distinct from all other variables.
StepHypRef Expression
1 nnuz 9782 . . . . . . 7  |-  NN  =  ( ZZ>= `  1 )
2 1zzd 9496 . . . . . . 7  |-  ( ph  ->  1  e.  ZZ )
3 cvgratnn.6 . . . . . . 7  |-  ( (
ph  /\  k  e.  NN )  ->  ( F `
 k )  e.  CC )
41, 2, 3serf 10735 . . . . . 6  |-  ( ph  ->  seq 1 (  +  ,  F ) : NN --> CC )
5 cvgratnnlemrate.m . . . . . . 7  |-  ( ph  ->  M  e.  NN )
6 cvgratnnlemrate.n . . . . . . 7  |-  ( ph  ->  N  e.  ( ZZ>= `  M ) )
7 eluznn 9824 . . . . . . 7  |-  ( ( M  e.  NN  /\  N  e.  ( ZZ>= `  M ) )  ->  N  e.  NN )
85, 6, 7syl2anc 411 . . . . . 6  |-  ( ph  ->  N  e.  NN )
94, 8ffvelcdmd 5779 . . . . 5  |-  ( ph  ->  (  seq 1 (  +  ,  F ) `
 N )  e.  CC )
104, 5ffvelcdmd 5779 . . . . 5  |-  ( ph  ->  (  seq 1 (  +  ,  F ) `
 M )  e.  CC )
119, 10subcld 8480 . . . 4  |-  ( ph  ->  ( (  seq 1
(  +  ,  F
) `  N )  -  (  seq 1
(  +  ,  F
) `  M )
)  e.  CC )
1211abscld 11732 . . 3  |-  ( ph  ->  ( abs `  (
(  seq 1 (  +  ,  F ) `  N )  -  (  seq 1 (  +  ,  F ) `  M
) ) )  e.  RR )
13 fveq2 5635 . . . . . . 7  |-  ( k  =  M  ->  ( F `  k )  =  ( F `  M ) )
1413eleq1d 2298 . . . . . 6  |-  ( k  =  M  ->  (
( F `  k
)  e.  CC  <->  ( F `  M )  e.  CC ) )
153ralrimiva 2603 . . . . . 6  |-  ( ph  ->  A. k  e.  NN  ( F `  k )  e.  CC )
1614, 15, 5rspcdva 2913 . . . . 5  |-  ( ph  ->  ( F `  M
)  e.  CC )
1716abscld 11732 . . . 4  |-  ( ph  ->  ( abs `  ( F `  M )
)  e.  RR )
185nnzd 9591 . . . . . . 7  |-  ( ph  ->  M  e.  ZZ )
1918peano2zd 9595 . . . . . 6  |-  ( ph  ->  ( M  +  1 )  e.  ZZ )
20 eluzelz 9755 . . . . . . 7  |-  ( N  e.  ( ZZ>= `  M
)  ->  N  e.  ZZ )
216, 20syl 14 . . . . . 6  |-  ( ph  ->  N  e.  ZZ )
2219, 21fzfigd 10683 . . . . 5  |-  ( ph  ->  ( ( M  + 
1 ) ... N
)  e.  Fin )
23 cvgratnn.3 . . . . . . 7  |-  ( ph  ->  A  e.  RR )
2423adantr 276 . . . . . 6  |-  ( (
ph  /\  i  e.  ( ( M  + 
1 ) ... N
) )  ->  A  e.  RR )
255nnred 9146 . . . . . . . . 9  |-  ( ph  ->  M  e.  RR )
2625adantr 276 . . . . . . . 8  |-  ( (
ph  /\  i  e.  ( ( M  + 
1 ) ... N
) )  ->  M  e.  RR )
27 peano2re 8305 . . . . . . . . 9  |-  ( M  e.  RR  ->  ( M  +  1 )  e.  RR )
2826, 27syl 14 . . . . . . . 8  |-  ( (
ph  /\  i  e.  ( ( M  + 
1 ) ... N
) )  ->  ( M  +  1 )  e.  RR )
29 elfzelz 10250 . . . . . . . . . 10  |-  ( i  e.  ( ( M  +  1 ) ... N )  ->  i  e.  ZZ )
3029adantl 277 . . . . . . . . 9  |-  ( (
ph  /\  i  e.  ( ( M  + 
1 ) ... N
) )  ->  i  e.  ZZ )
3130zred 9592 . . . . . . . 8  |-  ( (
ph  /\  i  e.  ( ( M  + 
1 ) ... N
) )  ->  i  e.  RR )
3226lep1d 9101 . . . . . . . 8  |-  ( (
ph  /\  i  e.  ( ( M  + 
1 ) ... N
) )  ->  M  <_  ( M  +  1 ) )
33 elfzle1 10252 . . . . . . . . 9  |-  ( i  e.  ( ( M  +  1 ) ... N )  ->  ( M  +  1 )  <_  i )
3433adantl 277 . . . . . . . 8  |-  ( (
ph  /\  i  e.  ( ( M  + 
1 ) ... N
) )  ->  ( M  +  1 )  <_  i )
3526, 28, 31, 32, 34letrd 8293 . . . . . . 7  |-  ( (
ph  /\  i  e.  ( ( M  + 
1 ) ... N
) )  ->  M  <_  i )
36 znn0sub 9535 . . . . . . . 8  |-  ( ( M  e.  ZZ  /\  i  e.  ZZ )  ->  ( M  <_  i  <->  ( i  -  M )  e.  NN0 ) )
3718, 29, 36syl2an 289 . . . . . . 7  |-  ( (
ph  /\  i  e.  ( ( M  + 
1 ) ... N
) )  ->  ( M  <_  i  <->  ( i  -  M )  e.  NN0 ) )
3835, 37mpbid 147 . . . . . 6  |-  ( (
ph  /\  i  e.  ( ( M  + 
1 ) ... N
) )  ->  (
i  -  M )  e.  NN0 )
3924, 38reexpcld 10942 . . . . 5  |-  ( (
ph  /\  i  e.  ( ( M  + 
1 ) ... N
) )  ->  ( A ^ ( i  -  M ) )  e.  RR )
4022, 39fsumrecl 11952 . . . 4  |-  ( ph  -> 
sum_ i  e.  ( ( M  +  1 ) ... N ) ( A ^ (
i  -  M ) )  e.  RR )
4117, 40remulcld 8200 . . 3  |-  ( ph  ->  ( ( abs `  ( F `  M )
)  x.  sum_ i  e.  ( ( M  + 
1 ) ... N
) ( A ^
( i  -  M
) ) )  e.  RR )
42 cvgratnn.4 . . . . . . . . . . 11  |-  ( ph  ->  A  <  1 )
43 cvgratnn.gt0 . . . . . . . . . . . . 13  |-  ( ph  ->  0  <  A )
4423, 43elrpd 9918 . . . . . . . . . . . 12  |-  ( ph  ->  A  e.  RR+ )
4544reclt1d 9935 . . . . . . . . . . 11  |-  ( ph  ->  ( A  <  1  <->  1  <  ( 1  /  A ) ) )
4642, 45mpbid 147 . . . . . . . . . 10  |-  ( ph  ->  1  <  ( 1  /  A ) )
47 1re 8168 . . . . . . . . . . 11  |-  1  e.  RR
4844rprecred 9933 . . . . . . . . . . 11  |-  ( ph  ->  ( 1  /  A
)  e.  RR )
49 difrp 9917 . . . . . . . . . . 11  |-  ( ( 1  e.  RR  /\  ( 1  /  A
)  e.  RR )  ->  ( 1  < 
( 1  /  A
)  <->  ( ( 1  /  A )  - 
1 )  e.  RR+ ) )
5047, 48, 49sylancr 414 . . . . . . . . . 10  |-  ( ph  ->  ( 1  <  (
1  /  A )  <-> 
( ( 1  /  A )  -  1 )  e.  RR+ )
)
5146, 50mpbid 147 . . . . . . . . 9  |-  ( ph  ->  ( ( 1  /  A )  -  1 )  e.  RR+ )
5251rpreccld 9932 . . . . . . . 8  |-  ( ph  ->  ( 1  /  (
( 1  /  A
)  -  1 ) )  e.  RR+ )
5352, 44rpdivcld 9939 . . . . . . 7  |-  ( ph  ->  ( ( 1  / 
( ( 1  /  A )  -  1 ) )  /  A
)  e.  RR+ )
54 fveq2 5635 . . . . . . . . . . 11  |-  ( k  =  1  ->  ( F `  k )  =  ( F ` 
1 ) )
5554eleq1d 2298 . . . . . . . . . 10  |-  ( k  =  1  ->  (
( F `  k
)  e.  CC  <->  ( F `  1 )  e.  CC ) )
56 1nn 9144 . . . . . . . . . . 11  |-  1  e.  NN
5756a1i 9 . . . . . . . . . 10  |-  ( ph  ->  1  e.  NN )
5855, 15, 57rspcdva 2913 . . . . . . . . 9  |-  ( ph  ->  ( F `  1
)  e.  CC )
5958abscld 11732 . . . . . . . 8  |-  ( ph  ->  ( abs `  ( F `  1 )
)  e.  RR )
6058absge0d 11735 . . . . . . . 8  |-  ( ph  ->  0  <_  ( abs `  ( F `  1
) ) )
6159, 60ge0p1rpd 9952 . . . . . . 7  |-  ( ph  ->  ( ( abs `  ( F `  1 )
)  +  1 )  e.  RR+ )
6253, 61rpmulcld 9938 . . . . . 6  |-  ( ph  ->  ( ( ( 1  /  ( ( 1  /  A )  - 
1 ) )  /  A )  x.  (
( abs `  ( F `  1 )
)  +  1 ) )  e.  RR+ )
6362rpred 9921 . . . . 5  |-  ( ph  ->  ( ( ( 1  /  ( ( 1  /  A )  - 
1 ) )  /  A )  x.  (
( abs `  ( F `  1 )
)  +  1 ) )  e.  RR )
6463, 5nndivred 9183 . . . 4  |-  ( ph  ->  ( ( ( ( 1  /  ( ( 1  /  A )  -  1 ) )  /  A )  x.  ( ( abs `  ( F `  1 )
)  +  1 ) )  /  M )  e.  RR )
65 1red 8184 . . . . . . . 8  |-  ( ph  ->  1  e.  RR )
6665, 23resubcld 8550 . . . . . . 7  |-  ( ph  ->  ( 1  -  A
)  e.  RR )
6723, 65posdifd 8702 . . . . . . . 8  |-  ( ph  ->  ( A  <  1  <->  0  <  ( 1  -  A ) ) )
6842, 67mpbid 147 . . . . . . 7  |-  ( ph  ->  0  <  ( 1  -  A ) )
6966, 68elrpd 9918 . . . . . 6  |-  ( ph  ->  ( 1  -  A
)  e.  RR+ )
7044, 69rpdivcld 9939 . . . . 5  |-  ( ph  ->  ( A  /  (
1  -  A ) )  e.  RR+ )
7170rpred 9921 . . . 4  |-  ( ph  ->  ( A  /  (
1  -  A ) )  e.  RR )
7264, 71remulcld 8200 . . 3  |-  ( ph  ->  ( ( ( ( ( 1  /  (
( 1  /  A
)  -  1 ) )  /  A )  x.  ( ( abs `  ( F `  1
) )  +  1 ) )  /  M
)  x.  ( A  /  ( 1  -  A ) ) )  e.  RR )
73 cvgratnn.7 . . . . . 6  |-  ( (
ph  /\  k  e.  NN )  ->  ( abs `  ( F `  (
k  +  1 ) ) )  <_  ( A  x.  ( abs `  ( F `  k
) ) ) )
7423, 42, 43, 3, 73, 5, 6cvgratnnlemseq 12077 . . . . 5  |-  ( ph  ->  ( (  seq 1
(  +  ,  F
) `  N )  -  (  seq 1
(  +  ,  F
) `  M )
)  =  sum_ i  e.  ( ( M  + 
1 ) ... N
) ( F `  i ) )
7574fveq2d 5639 . . . 4  |-  ( ph  ->  ( abs `  (
(  seq 1 (  +  ,  F ) `  N )  -  (  seq 1 (  +  ,  F ) `  M
) ) )  =  ( abs `  sum_ i  e.  ( ( M  +  1 ) ... N ) ( F `  i ) ) )
7623, 42, 43, 3, 73, 5, 6cvgratnnlemabsle 12078 . . . 4  |-  ( ph  ->  ( abs `  sum_ i  e.  ( ( M  +  1 ) ... N ) ( F `  i ) )  <_  ( ( abs `  ( F `  M ) )  x. 
sum_ i  e.  ( ( M  +  1 ) ... N ) ( A ^ (
i  -  M ) ) ) )
7775, 76eqbrtrd 4108 . . 3  |-  ( ph  ->  ( abs `  (
(  seq 1 (  +  ,  F ) `  N )  -  (  seq 1 (  +  ,  F ) `  M
) ) )  <_ 
( ( abs `  ( F `  M )
)  x.  sum_ i  e.  ( ( M  + 
1 ) ... N
) ( A ^
( i  -  M
) ) ) )
7816absge0d 11735 . . . 4  |-  ( ph  ->  0  <_  ( abs `  ( F `  M
) ) )
7923, 42, 43, 3, 73, 5cvgratnnlemfm 12080 . . . 4  |-  ( ph  ->  ( abs `  ( F `  M )
)  <  ( (
( ( 1  / 
( ( 1  /  A )  -  1 ) )  /  A
)  x.  ( ( abs `  ( F `
 1 ) )  +  1 ) )  /  M ) )
8044adantr 276 . . . . . . 7  |-  ( (
ph  /\  i  e.  ( ( M  + 
1 ) ... N
) )  ->  A  e.  RR+ )
8138nn0zd 9590 . . . . . . 7  |-  ( (
ph  /\  i  e.  ( ( M  + 
1 ) ... N
) )  ->  (
i  -  M )  e.  ZZ )
8280, 81rpexpcld 10949 . . . . . 6  |-  ( (
ph  /\  i  e.  ( ( M  + 
1 ) ... N
) )  ->  ( A ^ ( i  -  M ) )  e.  RR+ )
8382rpge0d 9925 . . . . 5  |-  ( (
ph  /\  i  e.  ( ( M  + 
1 ) ... N
) )  ->  0  <_  ( A ^ (
i  -  M ) ) )
8422, 39, 83fsumge0 12010 . . . 4  |-  ( ph  ->  0  <_  sum_ i  e.  ( ( M  + 
1 ) ... N
) ( A ^
( i  -  M
) ) )
8523, 42, 43, 3, 73, 5, 6cvgratnnlemsumlt 12079 . . . 4  |-  ( ph  -> 
sum_ i  e.  ( ( M  +  1 ) ... N ) ( A ^ (
i  -  M ) )  <  ( A  /  ( 1  -  A ) ) )
8617, 64, 40, 71, 78, 79, 84, 85ltmul12ad 9111 . . 3  |-  ( ph  ->  ( ( abs `  ( F `  M )
)  x.  sum_ i  e.  ( ( M  + 
1 ) ... N
) ( A ^
( i  -  M
) ) )  < 
( ( ( ( ( 1  /  (
( 1  /  A
)  -  1 ) )  /  A )  x.  ( ( abs `  ( F `  1
) )  +  1 ) )  /  M
)  x.  ( A  /  ( 1  -  A ) ) ) )
8712, 41, 72, 77, 86lelttrd 8294 . 2  |-  ( ph  ->  ( abs `  (
(  seq 1 (  +  ,  F ) `  N )  -  (  seq 1 (  +  ,  F ) `  M
) ) )  < 
( ( ( ( ( 1  /  (
( 1  /  A
)  -  1 ) )  /  A )  x.  ( ( abs `  ( F `  1
) )  +  1 ) )  /  M
)  x.  ( A  /  ( 1  -  A ) ) ) )
8863recnd 8198 . . 3  |-  ( ph  ->  ( ( ( 1  /  ( ( 1  /  A )  - 
1 ) )  /  A )  x.  (
( abs `  ( F `  1 )
)  +  1 ) )  e.  CC )
8971recnd 8198 . . 3  |-  ( ph  ->  ( A  /  (
1  -  A ) )  e.  CC )
905nncnd 9147 . . 3  |-  ( ph  ->  M  e.  CC )
915nnap0d 9179 . . 3  |-  ( ph  ->  M #  0 )
9288, 89, 90, 91div23apd 8998 . 2  |-  ( ph  ->  ( ( ( ( ( 1  /  (
( 1  /  A
)  -  1 ) )  /  A )  x.  ( ( abs `  ( F `  1
) )  +  1 ) )  x.  ( A  /  ( 1  -  A ) ) )  /  M )  =  ( ( ( ( ( 1  /  (
( 1  /  A
)  -  1 ) )  /  A )  x.  ( ( abs `  ( F `  1
) )  +  1 ) )  /  M
)  x.  ( A  /  ( 1  -  A ) ) ) )
9387, 92breqtrrd 4114 1  |-  ( ph  ->  ( abs `  (
(  seq 1 (  +  ,  F ) `  N )  -  (  seq 1 (  +  ,  F ) `  M
) ) )  < 
( ( ( ( ( 1  /  (
( 1  /  A
)  -  1 ) )  /  A )  x.  ( ( abs `  ( F `  1
) )  +  1 ) )  x.  ( A  /  ( 1  -  A ) ) )  /  M ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 104    <-> wb 105    = wceq 1395    e. wcel 2200   class class class wbr 4086   ` cfv 5324  (class class class)co 6013   CCcc 8020   RRcr 8021   0cc0 8022   1c1 8023    + caddc 8025    x. cmul 8027    < clt 8204    <_ cle 8205    - cmin 8340    / cdiv 8842   NNcn 9133   NN0cn0 9392   ZZcz 9469   ZZ>=cuz 9745   RR+crp 9878   ...cfz 10233    seqcseq 10699   ^cexp 10790   abscabs 11548   sum_csu 11904
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 617  ax-in2 618  ax-io 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-13 2202  ax-14 2203  ax-ext 2211  ax-coll 4202  ax-sep 4205  ax-nul 4213  ax-pow 4262  ax-pr 4297  ax-un 4528  ax-setind 4633  ax-iinf 4684  ax-cnex 8113  ax-resscn 8114  ax-1cn 8115  ax-1re 8116  ax-icn 8117  ax-addcl 8118  ax-addrcl 8119  ax-mulcl 8120  ax-mulrcl 8121  ax-addcom 8122  ax-mulcom 8123  ax-addass 8124  ax-mulass 8125  ax-distr 8126  ax-i2m1 8127  ax-0lt1 8128  ax-1rid 8129  ax-0id 8130  ax-rnegex 8131  ax-precex 8132  ax-cnre 8133  ax-pre-ltirr 8134  ax-pre-ltwlin 8135  ax-pre-lttrn 8136  ax-pre-apti 8137  ax-pre-ltadd 8138  ax-pre-mulgt0 8139  ax-pre-mulext 8140  ax-arch 8141  ax-caucvg 8142
This theorem depends on definitions:  df-bi 117  df-dc 840  df-3or 1003  df-3an 1004  df-tru 1398  df-fal 1401  df-nf 1507  df-sb 1809  df-eu 2080  df-mo 2081  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ne 2401  df-nel 2496  df-ral 2513  df-rex 2514  df-reu 2515  df-rmo 2516  df-rab 2517  df-v 2802  df-sbc 3030  df-csb 3126  df-dif 3200  df-un 3202  df-in 3204  df-ss 3211  df-nul 3493  df-if 3604  df-pw 3652  df-sn 3673  df-pr 3674  df-op 3676  df-uni 3892  df-int 3927  df-iun 3970  df-br 4087  df-opab 4149  df-mpt 4150  df-tr 4186  df-id 4388  df-po 4391  df-iso 4392  df-iord 4461  df-on 4463  df-ilim 4464  df-suc 4466  df-iom 4687  df-xp 4729  df-rel 4730  df-cnv 4731  df-co 4732  df-dm 4733  df-rn 4734  df-res 4735  df-ima 4736  df-iota 5284  df-fun 5326  df-fn 5327  df-f 5328  df-f1 5329  df-fo 5330  df-f1o 5331  df-fv 5332  df-isom 5333  df-riota 5966  df-ov 6016  df-oprab 6017  df-mpo 6018  df-1st 6298  df-2nd 6299  df-recs 6466  df-irdg 6531  df-frec 6552  df-1o 6577  df-oadd 6581  df-er 6697  df-en 6905  df-dom 6906  df-fin 6907  df-pnf 8206  df-mnf 8207  df-xr 8208  df-ltxr 8209  df-le 8210  df-sub 8342  df-neg 8343  df-reap 8745  df-ap 8752  df-div 8843  df-inn 9134  df-2 9192  df-3 9193  df-4 9194  df-n0 9393  df-z 9470  df-uz 9746  df-q 9844  df-rp 9879  df-ico 10119  df-fz 10234  df-fzo 10368  df-seqfrec 10700  df-exp 10791  df-ihash 11028  df-cj 11393  df-re 11394  df-im 11395  df-rsqrt 11549  df-abs 11550  df-clim 11830  df-sumdc 11905
This theorem is referenced by:  cvgratnn  12082
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