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Theorem climsub 13675
Description: Limit of the difference of two converging sequences. Proposition 12-2.1(b) of [Gleason] p. 168. (Contributed by NM, 4-Aug-2007.) (Proof shortened by Mario Carneiro, 1-Feb-2014.)
Hypotheses
Ref Expression
climadd.1  |-  Z  =  ( ZZ>= `  M )
climadd.2  |-  ( ph  ->  M  e.  ZZ )
climadd.4  |-  ( ph  ->  F  ~~>  A )
climadd.6  |-  ( ph  ->  H  e.  X )
climadd.7  |-  ( ph  ->  G  ~~>  B )
climadd.8  |-  ( (
ph  /\  k  e.  Z )  ->  ( F `  k )  e.  CC )
climadd.9  |-  ( (
ph  /\  k  e.  Z )  ->  ( G `  k )  e.  CC )
climsub.h  |-  ( (
ph  /\  k  e.  Z )  ->  ( H `  k )  =  ( ( F `
 k )  -  ( G `  k ) ) )
Assertion
Ref Expression
climsub  |-  ( ph  ->  H  ~~>  ( A  -  B ) )
Distinct variable groups:    B, k    k, F    ph, k    A, k   
k, G    k, H    k, M    k, Z
Allowed substitution hint:    X( k)

Proof of Theorem climsub
Dummy variables  u  v  x  y  z are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 climadd.1 . 2  |-  Z  =  ( ZZ>= `  M )
2 climadd.2 . 2  |-  ( ph  ->  M  e.  ZZ )
3 climadd.4 . . 3  |-  ( ph  ->  F  ~~>  A )
4 climcl 13541 . . 3  |-  ( F  ~~>  A  ->  A  e.  CC )
53, 4syl 17 . 2  |-  ( ph  ->  A  e.  CC )
6 climadd.7 . . 3  |-  ( ph  ->  G  ~~>  B )
7 climcl 13541 . . 3  |-  ( G  ~~>  B  ->  B  e.  CC )
86, 7syl 17 . 2  |-  ( ph  ->  B  e.  CC )
9 subcl 9873 . . 3  |-  ( ( u  e.  CC  /\  v  e.  CC )  ->  ( u  -  v
)  e.  CC )
109adantl 467 . 2  |-  ( (
ph  /\  ( u  e.  CC  /\  v  e.  CC ) )  -> 
( u  -  v
)  e.  CC )
11 climadd.6 . 2  |-  ( ph  ->  H  e.  X )
12 simpr 462 . . 3  |-  ( (
ph  /\  x  e.  RR+ )  ->  x  e.  RR+ )
135adantr 466 . . 3  |-  ( (
ph  /\  x  e.  RR+ )  ->  A  e.  CC )
148adantr 466 . . 3  |-  ( (
ph  /\  x  e.  RR+ )  ->  B  e.  CC )
15 subcn2 13636 . . 3  |-  ( ( x  e.  RR+  /\  A  e.  CC  /\  B  e.  CC )  ->  E. y  e.  RR+  E. z  e.  RR+  A. u  e.  CC  A. v  e.  CC  (
( ( abs `  (
u  -  A ) )  <  y  /\  ( abs `  ( v  -  B ) )  <  z )  -> 
( abs `  (
( u  -  v
)  -  ( A  -  B ) ) )  <  x ) )
1612, 13, 14, 15syl3anc 1264 . 2  |-  ( (
ph  /\  x  e.  RR+ )  ->  E. y  e.  RR+  E. z  e.  RR+  A. u  e.  CC  A. v  e.  CC  (
( ( abs `  (
u  -  A ) )  <  y  /\  ( abs `  ( v  -  B ) )  <  z )  -> 
( abs `  (
( u  -  v
)  -  ( A  -  B ) ) )  <  x ) )
17 climadd.8 . 2  |-  ( (
ph  /\  k  e.  Z )  ->  ( F `  k )  e.  CC )
18 climadd.9 . 2  |-  ( (
ph  /\  k  e.  Z )  ->  ( G `  k )  e.  CC )
19 climsub.h . 2  |-  ( (
ph  /\  k  e.  Z )  ->  ( H `  k )  =  ( ( F `
 k )  -  ( G `  k ) ) )
201, 2, 5, 8, 10, 3, 6, 11, 16, 17, 18, 19climcn2 13634 1  |-  ( ph  ->  H  ~~>  ( A  -  B ) )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    /\ wa 370    = wceq 1437    e. wcel 1870   A.wral 2782   E.wrex 2783   class class class wbr 4426   ` cfv 5601  (class class class)co 6305   CCcc 9536    < clt 9674    - cmin 9859   ZZcz 10937   ZZ>=cuz 11159   RR+crp 11302   abscabs 13276    ~~> cli 13526
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1665  ax-4 1678  ax-5 1751  ax-6 1797  ax-7 1841  ax-8 1872  ax-9 1874  ax-10 1889  ax-11 1894  ax-12 1907  ax-13 2055  ax-ext 2407  ax-sep 4548  ax-nul 4556  ax-pow 4603  ax-pr 4661  ax-un 6597  ax-cnex 9594  ax-resscn 9595  ax-1cn 9596  ax-icn 9597  ax-addcl 9598  ax-addrcl 9599  ax-mulcl 9600  ax-mulrcl 9601  ax-mulcom 9602  ax-addass 9603  ax-mulass 9604  ax-distr 9605  ax-i2m1 9606  ax-1ne0 9607  ax-1rid 9608  ax-rnegex 9609  ax-rrecex 9610  ax-cnre 9611  ax-pre-lttri 9612  ax-pre-lttrn 9613  ax-pre-ltadd 9614  ax-pre-mulgt0 9615  ax-pre-sup 9616
This theorem depends on definitions:  df-bi 188  df-or 371  df-an 372  df-3or 983  df-3an 984  df-tru 1440  df-ex 1660  df-nf 1664  df-sb 1790  df-eu 2270  df-mo 2271  df-clab 2415  df-cleq 2421  df-clel 2424  df-nfc 2579  df-ne 2627  df-nel 2628  df-ral 2787  df-rex 2788  df-reu 2789  df-rmo 2790  df-rab 2791  df-v 3089  df-sbc 3306  df-csb 3402  df-dif 3445  df-un 3447  df-in 3449  df-ss 3456  df-pss 3458  df-nul 3768  df-if 3916  df-pw 3987  df-sn 4003  df-pr 4005  df-tp 4007  df-op 4009  df-uni 4223  df-iun 4304  df-br 4427  df-opab 4485  df-mpt 4486  df-tr 4521  df-eprel 4765  df-id 4769  df-po 4775  df-so 4776  df-fr 4813  df-we 4815  df-xp 4860  df-rel 4861  df-cnv 4862  df-co 4863  df-dm 4864  df-rn 4865  df-res 4866  df-ima 4867  df-pred 5399  df-ord 5445  df-on 5446  df-lim 5447  df-suc 5448  df-iota 5565  df-fun 5603  df-fn 5604  df-f 5605  df-f1 5606  df-fo 5607  df-f1o 5608  df-fv 5609  df-riota 6267  df-ov 6308  df-oprab 6309  df-mpt2 6310  df-om 6707  df-2nd 6808  df-wrecs 7036  df-recs 7098  df-rdg 7136  df-er 7371  df-en 7578  df-dom 7579  df-sdom 7580  df-sup 7962  df-pnf 9676  df-mnf 9677  df-xr 9678  df-ltxr 9679  df-le 9680  df-sub 9861  df-neg 9862  df-div 10269  df-nn 10610  df-2 10668  df-3 10669  df-n0 10870  df-z 10938  df-uz 11160  df-rp 11303  df-seq 12211  df-exp 12270  df-cj 13141  df-re 13142  df-im 13143  df-sqrt 13277  df-abs 13278  df-clim 13530
This theorem is referenced by:  climsubc1  13679  climsubc2  13680  climle  13681  supcvg  13892  mbfi1flimlem  22557  ulmdvlem1  23220  abelthlem6  23256  atantayl  23728  lgamcvg2  23845  hashnzfzclim  36311  binomcxplemrat  36339  ioodvbdlimc2lem  37381
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