Theorem climi0 11815

Description: Convergence of a sequence of complex numbers to zero. (Contributed by NM, 11-Jan-2007.) (Revised by Mario Carneiro, 31-Jan-2014.)

Hypotheses

Ref	Expression
climi.1	|- Z = ( ZZ>= ` M )
climi.2	|- ( ph -> M e. ZZ )
climi.3	|- ( ph -> C e. RR+ )
climi.4	|- ( ( ph /\ k e. Z ) -> ( F ` k ) = B )
climi0.5	|- ( ph -> F ~~> 0 )

Assertion

Ref	Expression
climi0	|- ( ph -> E. j e. Z A. k e. ( ZZ>= ` j ) ( abs ` B ) < C )

Distinct variable groups:   j, k, C   j, F, k   ph, j, k   j, Z, k   j, M

Allowed substitution hints:   B( j, k)   M( k)

Proof of Theorem climi0

Step	Hyp	Ref	Expression
1		climi.1	. . 3 |- Z = ( ZZ>= ` M )
2		climi.2	. . 3 |- ( ph -> M e. ZZ )
3		climi.3	. . 3 |- ( ph -> C e. RR+ )
4		climi.4	. . 3 |- ( ( ph /\ k e. Z ) -> ( F ` k ) = B )
5		climi0.5	. . 3 |- ( ph -> F ~~> 0 )
6	1, 2, 3, 4, 5	climi 11813	. 2 |- ( ph -> E. j e. Z A. k e. ( ZZ>= ` j ) ( B e. CC /\ ( abs ` ( B - 0 ) ) < C ) )
7		subid1 8377	. . . . . . 7 |- ( B e. CC -> ( B - 0 ) = B )
8	7	fveq2d 5633	. . . . . 6 |- ( B e. CC -> ( abs ` ( B - 0 ) ) = ( abs ` B ) )
9	8	breq1d 4093	. . . . 5 |- ( B e. CC -> ( ( abs ` ( B - 0 ) ) < C <-> ( abs ` B ) < C ) )
10	9	biimpa 296	. . . 4 |- ( ( B e. CC /\ ( abs ` ( B - 0 ) ) < C ) -> ( abs ` B ) < C )
11	10	ralimi 2593	. . 3 |- ( A. k e. ( ZZ>= ` j ) ( B e. CC /\ ( abs ` ( B - 0 ) ) < C ) -> A. k e. ( ZZ>= ` j ) ( abs ` B ) < C )
12	11	reximi 2627	. 2 |- ( E. j e. Z A. k e. ( ZZ>= ` j ) ( B e. CC /\ ( abs ` ( B - 0 ) ) < C ) -> E. j e. Z A. k e. ( ZZ>= ` j ) ( abs ` B ) < C )
13	6, 12	syl 14	1 |- ( ph -> E. j e. Z A. k e. ( ZZ>= ` j ) ( abs ` B ) < C )

Syntax hints:   -> wi 4   /\ wa 104   = wceq 1395   e. wcel 2200   A.wral 2508   E.wrex 2509   class class class wbr 4083   ` cfv 5318  (class class class)co 6007   CCcc 8008   0cc0 8010   < clt 8192   - cmin 8328   ZZcz 9457   ZZ>=cuz 9733   RR+crp 9861   abscabs 11523   ~~> cli 11804

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-sep 4202  ax-pow 4258  ax-pr 4293  ax-un 4524  ax-setind 4629  ax-cnex 8101  ax-resscn 8102  ax-1cn 8103  ax-1re 8104  ax-icn 8105  ax-addcl 8106  ax-addrcl 8107  ax-mulcl 8108  ax-addcom 8110  ax-addass 8112  ax-distr 8114  ax-i2m1 8115  ax-0lt1 8116  ax-0id 8118  ax-rnegex 8119  ax-cnre 8121  ax-pre-ltirr 8122  ax-pre-ltwlin 8123  ax-pre-lttrn 8124  ax-pre-apti 8125  ax-pre-ltadd 8126

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-rab 2517  df-v 2801  df-sbc 3029  df-dif 3199  df-un 3201  df-in 3203  df-ss 3210  df-if 3603  df-pw 3651  df-sn 3672  df-pr 3673  df-op 3675  df-uni 3889  df-int 3924  df-br 4084  df-opab 4146  df-mpt 4147  df-id 4384  df-xp 4725  df-rel 4726  df-cnv 4727  df-co 4728  df-dm 4729  df-rn 4730  df-res 4731  df-ima 4732  df-iota 5278  df-fun 5320  df-fn 5321  df-f 5322  df-fv 5326  df-riota 5960  df-ov 6010  df-oprab 6011  df-mpo 6012  df-pnf 8194  df-mnf 8195  df-xr 8196  df-ltxr 8197  df-le 8198  df-sub 8330  df-neg 8331  df-inn 9122  df-n0 9381  df-z 9458  df-uz 9734  df-clim 11805

This theorem is referenced by:  mertenslem2  12062