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Theorem climub 11655
Description: The limit of a monotonic sequence is an upper bound. (Contributed by NM, 18-Mar-2005.) (Revised by Mario Carneiro, 10-Feb-2014.)
Hypotheses
Ref Expression
clim2iser.1  |-  Z  =  ( ZZ>= `  M )
climub.2  |-  ( ph  ->  N  e.  Z )
climub.3  |-  ( ph  ->  F  ~~>  A )
climub.4  |-  ( (
ph  /\  k  e.  Z )  ->  ( F `  k )  e.  RR )
climub.5  |-  ( (
ph  /\  k  e.  Z )  ->  ( F `  k )  <_  ( F `  (
k  +  1 ) ) )
Assertion
Ref Expression
climub  |-  ( ph  ->  ( F `  N
)  <_  A )
Distinct variable groups:    A, k    k, F    k, M    k, N    ph, k    k, Z

Proof of Theorem climub
Dummy variable  j is distinct from all other variables.
StepHypRef Expression
1 eqid 2205 . 2  |-  ( ZZ>= `  N )  =  (
ZZ>= `  N )
2 climub.2 . . . 4  |-  ( ph  ->  N  e.  Z )
3 clim2iser.1 . . . 4  |-  Z  =  ( ZZ>= `  M )
42, 3eleqtrdi 2298 . . 3  |-  ( ph  ->  N  e.  ( ZZ>= `  M ) )
5 eluzelz 9657 . . 3  |-  ( N  e.  ( ZZ>= `  M
)  ->  N  e.  ZZ )
64, 5syl 14 . 2  |-  ( ph  ->  N  e.  ZZ )
7 fveq2 5576 . . . . . 6  |-  ( k  =  N  ->  ( F `  k )  =  ( F `  N ) )
87eleq1d 2274 . . . . 5  |-  ( k  =  N  ->  (
( F `  k
)  e.  RR  <->  ( F `  N )  e.  RR ) )
98imbi2d 230 . . . 4  |-  ( k  =  N  ->  (
( ph  ->  ( F `
 k )  e.  RR )  <->  ( ph  ->  ( F `  N
)  e.  RR ) ) )
10 climub.4 . . . . 5  |-  ( (
ph  /\  k  e.  Z )  ->  ( F `  k )  e.  RR )
1110expcom 116 . . . 4  |-  ( k  e.  Z  ->  ( ph  ->  ( F `  k )  e.  RR ) )
129, 11vtoclga 2839 . . 3  |-  ( N  e.  Z  ->  ( ph  ->  ( F `  N )  e.  RR ) )
132, 12mpcom 36 . 2  |-  ( ph  ->  ( F `  N
)  e.  RR )
14 climub.3 . 2  |-  ( ph  ->  F  ~~>  A )
153uztrn2 9666 . . . 4  |-  ( ( N  e.  Z  /\  j  e.  ( ZZ>= `  N ) )  -> 
j  e.  Z )
162, 15sylan 283 . . 3  |-  ( (
ph  /\  j  e.  ( ZZ>= `  N )
)  ->  j  e.  Z )
17 fveq2 5576 . . . . . . 7  |-  ( k  =  j  ->  ( F `  k )  =  ( F `  j ) )
1817eleq1d 2274 . . . . . 6  |-  ( k  =  j  ->  (
( F `  k
)  e.  RR  <->  ( F `  j )  e.  RR ) )
1918imbi2d 230 . . . . 5  |-  ( k  =  j  ->  (
( ph  ->  ( F `
 k )  e.  RR )  <->  ( ph  ->  ( F `  j
)  e.  RR ) ) )
2019, 11vtoclga 2839 . . . 4  |-  ( j  e.  Z  ->  ( ph  ->  ( F `  j )  e.  RR ) )
2120impcom 125 . . 3  |-  ( (
ph  /\  j  e.  Z )  ->  ( F `  j )  e.  RR )
2216, 21syldan 282 . 2  |-  ( (
ph  /\  j  e.  ( ZZ>= `  N )
)  ->  ( F `  j )  e.  RR )
23 simpr 110 . . 3  |-  ( (
ph  /\  j  e.  ( ZZ>= `  N )
)  ->  j  e.  ( ZZ>= `  N )
)
24 elfzuz 10143 . . . . 5  |-  ( k  e.  ( N ... j )  ->  k  e.  ( ZZ>= `  N )
)
253uztrn2 9666 . . . . . . 7  |-  ( ( N  e.  Z  /\  k  e.  ( ZZ>= `  N ) )  -> 
k  e.  Z )
262, 25sylan 283 . . . . . 6  |-  ( (
ph  /\  k  e.  ( ZZ>= `  N )
)  ->  k  e.  Z )
2726, 10syldan 282 . . . . 5  |-  ( (
ph  /\  k  e.  ( ZZ>= `  N )
)  ->  ( F `  k )  e.  RR )
2824, 27sylan2 286 . . . 4  |-  ( (
ph  /\  k  e.  ( N ... j ) )  ->  ( F `  k )  e.  RR )
2928adantlr 477 . . 3  |-  ( ( ( ph  /\  j  e.  ( ZZ>= `  N )
)  /\  k  e.  ( N ... j ) )  ->  ( F `  k )  e.  RR )
30 elfzuz 10143 . . . . 5  |-  ( k  e.  ( N ... ( j  -  1 ) )  ->  k  e.  ( ZZ>= `  N )
)
31 climub.5 . . . . . 6  |-  ( (
ph  /\  k  e.  Z )  ->  ( F `  k )  <_  ( F `  (
k  +  1 ) ) )
3226, 31syldan 282 . . . . 5  |-  ( (
ph  /\  k  e.  ( ZZ>= `  N )
)  ->  ( F `  k )  <_  ( F `  ( k  +  1 ) ) )
3330, 32sylan2 286 . . . 4  |-  ( (
ph  /\  k  e.  ( N ... ( j  -  1 ) ) )  ->  ( F `  k )  <_  ( F `  ( k  +  1 ) ) )
3433adantlr 477 . . 3  |-  ( ( ( ph  /\  j  e.  ( ZZ>= `  N )
)  /\  k  e.  ( N ... ( j  -  1 ) ) )  ->  ( F `  k )  <_  ( F `  ( k  +  1 ) ) )
3523, 29, 34monoord 10630 . 2  |-  ( (
ph  /\  j  e.  ( ZZ>= `  N )
)  ->  ( F `  N )  <_  ( F `  j )
)
361, 6, 13, 14, 22, 35climlec2 11652 1  |-  ( ph  ->  ( F `  N
)  <_  A )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 104    = wceq 1373    e. wcel 2176   class class class wbr 4044   ` cfv 5271  (class class class)co 5944   RRcr 7924   1c1 7926    + caddc 7928    <_ cle 8108    - cmin 8243   ZZcz 9372   ZZ>=cuz 9648   ...cfz 10130    ~~> cli 11589
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 615  ax-in2 616  ax-io 711  ax-5 1470  ax-7 1471  ax-gen 1472  ax-ie1 1516  ax-ie2 1517  ax-8 1527  ax-10 1528  ax-11 1529  ax-i12 1530  ax-bndl 1532  ax-4 1533  ax-17 1549  ax-i9 1553  ax-ial 1557  ax-i5r 1558  ax-13 2178  ax-14 2179  ax-ext 2187  ax-coll 4159  ax-sep 4162  ax-nul 4170  ax-pow 4218  ax-pr 4253  ax-un 4480  ax-setind 4585  ax-iinf 4636  ax-cnex 8016  ax-resscn 8017  ax-1cn 8018  ax-1re 8019  ax-icn 8020  ax-addcl 8021  ax-addrcl 8022  ax-mulcl 8023  ax-mulrcl 8024  ax-addcom 8025  ax-mulcom 8026  ax-addass 8027  ax-mulass 8028  ax-distr 8029  ax-i2m1 8030  ax-0lt1 8031  ax-1rid 8032  ax-0id 8033  ax-rnegex 8034  ax-precex 8035  ax-cnre 8036  ax-pre-ltirr 8037  ax-pre-ltwlin 8038  ax-pre-lttrn 8039  ax-pre-apti 8040  ax-pre-ltadd 8041  ax-pre-mulgt0 8042  ax-pre-mulext 8043  ax-arch 8044  ax-caucvg 8045
This theorem depends on definitions:  df-bi 117  df-dc 837  df-3or 982  df-3an 983  df-tru 1376  df-fal 1379  df-nf 1484  df-sb 1786  df-eu 2057  df-mo 2058  df-clab 2192  df-cleq 2198  df-clel 2201  df-nfc 2337  df-ne 2377  df-nel 2472  df-ral 2489  df-rex 2490  df-reu 2491  df-rmo 2492  df-rab 2493  df-v 2774  df-sbc 2999  df-csb 3094  df-dif 3168  df-un 3170  df-in 3172  df-ss 3179  df-nul 3461  df-if 3572  df-pw 3618  df-sn 3639  df-pr 3640  df-op 3642  df-uni 3851  df-int 3886  df-iun 3929  df-br 4045  df-opab 4106  df-mpt 4107  df-tr 4143  df-id 4340  df-po 4343  df-iso 4344  df-iord 4413  df-on 4415  df-ilim 4416  df-suc 4418  df-iom 4639  df-xp 4681  df-rel 4682  df-cnv 4683  df-co 4684  df-dm 4685  df-rn 4686  df-res 4687  df-ima 4688  df-iota 5232  df-fun 5273  df-fn 5274  df-f 5275  df-f1 5276  df-fo 5277  df-f1o 5278  df-fv 5279  df-riota 5899  df-ov 5947  df-oprab 5948  df-mpo 5949  df-1st 6226  df-2nd 6227  df-recs 6391  df-frec 6477  df-pnf 8109  df-mnf 8110  df-xr 8111  df-ltxr 8112  df-le 8113  df-sub 8245  df-neg 8246  df-reap 8648  df-ap 8655  df-div 8746  df-inn 9037  df-2 9095  df-3 9096  df-4 9097  df-n0 9296  df-z 9373  df-uz 9649  df-rp 9776  df-fz 10131  df-seqfrec 10593  df-exp 10684  df-cj 11153  df-re 11154  df-im 11155  df-rsqrt 11309  df-abs 11310  df-clim 11590
This theorem is referenced by:  climserle  11656
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