Theorem climconst 11809

Description: An (eventually) constant sequence converges to its value. (Contributed by NM, 28-Aug-2005.) (Revised by Mario Carneiro, 31-Jan-2014.)

Hypotheses

Ref	Expression
climconst.1	|- Z = ( ZZ>= ` M )
climconst.2	|- ( ph -> M e. ZZ )
climconst.3	|- ( ph -> F e. V )
climconst.4	|- ( ph -> A e. CC )
climconst.5	|- ( ( ph /\ k e. Z ) -> ( F ` k ) = A )

Assertion

Ref	Expression
climconst	|- ( ph -> F ~~> A )

Distinct variable groups:   A, k   k, F   ph, k   k, Z

Allowed substitution hints:   M( k)   V( k)

Proof of Theorem climconst

Dummy variables j x are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		climconst.2	. . . . . . 7 |- ( ph -> M e. ZZ )
2		uzid 9744	. . . . . . 7 |- ( M e. ZZ -> M e. ( ZZ>= ` M ) )
3	1, 2	syl 14	. . . . . 6 |- ( ph -> M e. ( ZZ>= ` M ) )
4		climconst.1	. . . . . 6 |- Z = ( ZZ>= ` M )
5	3, 4	eleqtrrdi 2323	. . . . 5 |- ( ph -> M e. Z )
6	5	adantr 276	. . . 4 |- ( ( ph /\ x e. RR+ ) -> M e. Z )
7		climconst.4	. . . . . . . . . 10 |- ( ph -> A e. CC )
8	7	subidd 8453	. . . . . . . . 9 |- ( ph -> ( A - A ) = 0 )
9	8	fveq2d 5633	. . . . . . . 8 |- ( ph -> ( abs ` ( A - A ) ) = ( abs ` 0 ) )
10		abs0 11577	. . . . . . . 8 |- ( abs ` 0 ) = 0
11	9, 10	eqtrdi 2278	. . . . . . 7 |- ( ph -> ( abs ` ( A - A ) ) = 0 )
12	11	adantr 276	. . . . . 6 |- ( ( ph /\ x e. RR+ ) -> ( abs ` ( A - A ) ) = 0 )
13		rpgt0 9869	. . . . . . 7 |- ( x e. RR+ -> 0 < x )
14	13	adantl 277	. . . . . 6 |- ( ( ph /\ x e. RR+ ) -> 0 < x )
15	12, 14	eqbrtrd 4105	. . . . 5 |- ( ( ph /\ x e. RR+ ) -> ( abs ` ( A - A ) ) < x )
16	15	ralrimivw 2604	. . . 4 |- ( ( ph /\ x e. RR+ ) -> A. k e. Z ( abs ` ( A - A ) ) < x )
17		fveq2 5629	. . . . . . 7 |- ( j = M -> ( ZZ>= ` j ) = ( ZZ>= ` M ) )
18	17, 4	eqtr4di 2280	. . . . . 6 |- ( j = M -> ( ZZ>= ` j ) = Z )
19	18	raleqdv 2734	. . . . 5 |- ( j = M -> ( A. k e. ( ZZ>= ` j ) ( abs ` ( A - A ) ) < x <-> A. k e. Z ( abs ` ( A - A ) ) < x ) )
20	19	rspcev 2907	. . . 4 |- ( ( M e. Z /\ A. k e. Z ( abs ` ( A - A ) ) < x ) -> E. j e. Z A. k e. ( ZZ>= ` j ) ( abs ` ( A - A ) ) < x )
21	6, 16, 20	syl2anc 411	. . 3 |- ( ( ph /\ x e. RR+ ) -> E. j e. Z A. k e. ( ZZ>= ` j ) ( abs ` ( A - A ) ) < x )
22	21	ralrimiva 2603	. 2 |- ( ph -> A. x e. RR+ E. j e. Z A. k e. ( ZZ>= ` j ) ( abs ` ( A - A ) ) < x )
23		climconst.3	. . 3 |- ( ph -> F e. V )
24		climconst.5	. . 3 |- ( ( ph /\ k e. Z ) -> ( F ` k ) = A )
25	7	adantr 276	. . 3 |- ( ( ph /\ k e. Z ) -> A e. CC )
26	4, 1, 23, 24, 7, 25	clim2c 11803	. 2 |- ( ph -> ( F ~~> A <-> A. x e. RR+ E. j e. Z A. k e. ( ZZ>= ` j ) ( abs ` ( A - A ) ) < x ) )
27	22, 26	mpbird 167	1 |- ( ph -> F ~~> A )

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 8005   0cc0 8007   < clt 8189   - cmin 8325   ZZcz 9454   ZZ>=cuz 9730   RR+crp 9857   abscabs 11516   ~~> cli 11797

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 4199  ax-sep 4202  ax-nul 4210  ax-pow 4258  ax-pr 4293  ax-un 4524  ax-setind 4629  ax-iinf 4680  ax-cnex 8098  ax-resscn 8099  ax-1cn 8100  ax-1re 8101  ax-icn 8102  ax-addcl 8103  ax-addrcl 8104  ax-mulcl 8105  ax-mulrcl 8106  ax-addcom 8107  ax-mulcom 8108  ax-addass 8109  ax-mulass 8110  ax-distr 8111  ax-i2m1 8112  ax-0lt1 8113  ax-1rid 8114  ax-0id 8115  ax-rnegex 8116  ax-precex 8117  ax-cnre 8118  ax-pre-ltirr 8119  ax-pre-ltwlin 8120  ax-pre-lttrn 8121  ax-pre-apti 8122  ax-pre-ltadd 8123  ax-pre-mulgt0 8124  ax-pre-mulext 8125

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 2801  df-sbc 3029  df-csb 3125  df-dif 3199  df-un 3201  df-in 3203  df-ss 3210  df-nul 3492  df-if 3603  df-pw 3651  df-sn 3672  df-pr 3673  df-op 3675  df-uni 3889  df-int 3924  df-iun 3967  df-br 4084  df-opab 4146  df-mpt 4147  df-tr 4183  df-id 4384  df-po 4387  df-iso 4388  df-iord 4457  df-on 4459  df-ilim 4460  df-suc 4462  df-iom 4683  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-f1 5323  df-fo 5324  df-f1o 5325  df-fv 5326  df-riota 5960  df-ov 6010  df-oprab 6011  df-mpo 6012  df-1st 6292  df-2nd 6293  df-recs 6457  df-frec 6543  df-pnf 8191  df-mnf 8192  df-xr 8193  df-ltxr 8194  df-le 8195  df-sub 8327  df-neg 8328  df-reap 8730  df-ap 8737  df-div 8828  df-inn 9119  df-2 9177  df-n0 9378  df-z 9455  df-uz 9731  df-rp 9858  df-seqfrec 10678  df-exp 10769  df-cj 11361  df-rsqrt 11517  df-abs 11518  df-clim 11798

This theorem is referenced by:  climconst2  11810  fsum3cvg  11897  fproddccvg  12091  fprodntrivap  12103