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Theorem cvg1nlemf 10934
Description: Lemma for cvg1n 10937. The modified sequence  G is a sequence. (Contributed by Jim Kingdon, 1-Aug-2021.)
Hypotheses
Ref Expression
cvg1n.f  |-  ( ph  ->  F : NN --> RR )
cvg1n.c  |-  ( ph  ->  C  e.  RR+ )
cvg1n.cau  |-  ( ph  ->  A. n  e.  NN  A. k  e.  ( ZZ>= `  n ) ( ( F `  n )  <  ( ( F `
 k )  +  ( C  /  n
) )  /\  ( F `  k )  <  ( ( F `  n )  +  ( C  /  n ) ) ) )
cvg1nlem.g  |-  G  =  ( j  e.  NN  |->  ( F `  ( j  x.  Z ) ) )
cvg1nlem.z  |-  ( ph  ->  Z  e.  NN )
cvg1nlem.start  |-  ( ph  ->  C  <  Z )
Assertion
Ref Expression
cvg1nlemf  |-  ( ph  ->  G : NN --> RR )
Distinct variable group:    ph, j
Allowed substitution hints:    ph( k, n)    C( j, k, n)    F( j,
k, n)    G( j,
k, n)    Z( j,
k, n)

Proof of Theorem cvg1nlemf
StepHypRef Expression
1 cvg1n.f . . . 4  |-  ( ph  ->  F : NN --> RR )
21adantr 274 . . 3  |-  ( (
ph  /\  j  e.  NN )  ->  F : NN
--> RR )
3 simpr 109 . . . 4  |-  ( (
ph  /\  j  e.  NN )  ->  j  e.  NN )
4 cvg1nlem.z . . . . 5  |-  ( ph  ->  Z  e.  NN )
54adantr 274 . . . 4  |-  ( (
ph  /\  j  e.  NN )  ->  Z  e.  NN )
63, 5nnmulcld 8914 . . 3  |-  ( (
ph  /\  j  e.  NN )  ->  ( j  x.  Z )  e.  NN )
72, 6ffvelrnd 5629 . 2  |-  ( (
ph  /\  j  e.  NN )  ->  ( F `
 ( j  x.  Z ) )  e.  RR )
8 cvg1nlem.g . 2  |-  G  =  ( j  e.  NN  |->  ( F `  ( j  x.  Z ) ) )
97, 8fmptd 5647 1  |-  ( ph  ->  G : NN --> RR )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 103    = wceq 1348    e. wcel 2141   A.wral 2448   class class class wbr 3987    |-> cmpt 4048   -->wf 5192   ` cfv 5196  (class class class)co 5850   RRcr 7760    + caddc 7764    x. cmul 7766    < clt 7941    / cdiv 8576   NNcn 8865   ZZ>=cuz 9474   RR+crp 9597
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-io 704  ax-5 1440  ax-7 1441  ax-gen 1442  ax-ie1 1486  ax-ie2 1487  ax-8 1497  ax-10 1498  ax-11 1499  ax-i12 1500  ax-bndl 1502  ax-4 1503  ax-17 1519  ax-i9 1523  ax-ial 1527  ax-i5r 1528  ax-14 2144  ax-ext 2152  ax-sep 4105  ax-pow 4158  ax-pr 4192  ax-cnex 7852  ax-resscn 7853  ax-1cn 7854  ax-1re 7855  ax-icn 7856  ax-addcl 7857  ax-addrcl 7858  ax-mulcl 7859  ax-mulcom 7862  ax-addass 7863  ax-mulass 7864  ax-distr 7865  ax-1rid 7868  ax-cnre 7872
This theorem depends on definitions:  df-bi 116  df-3an 975  df-tru 1351  df-nf 1454  df-sb 1756  df-eu 2022  df-mo 2023  df-clab 2157  df-cleq 2163  df-clel 2166  df-nfc 2301  df-ral 2453  df-rex 2454  df-rab 2457  df-v 2732  df-sbc 2956  df-un 3125  df-in 3127  df-ss 3134  df-pw 3566  df-sn 3587  df-pr 3588  df-op 3590  df-uni 3795  df-int 3830  df-br 3988  df-opab 4049  df-mpt 4050  df-id 4276  df-xp 4615  df-rel 4616  df-cnv 4617  df-co 4618  df-dm 4619  df-rn 4620  df-res 4621  df-ima 4622  df-iota 5158  df-fun 5198  df-fn 5199  df-f 5200  df-fv 5204  df-ov 5853  df-inn 8866
This theorem is referenced by:  cvg1nlemres  10936
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