Theorem georeclim 12073

Description: The limit of a geometric series of reciprocals. (Contributed by Paul Chapman, 28-Dec-2007.) (Revised by Mario Carneiro, 26-Apr-2014.)

Hypotheses

Ref	Expression
georeclim.1	|- ( ph -> A e. CC )
georeclim.2	|- ( ph -> 1 < ( abs ` A ) )
georeclim.3	|- ( ( ph /\ k e. NN0 ) -> ( F ` k ) = ( ( 1 / A ) ^ k ) )

Assertion

Ref	Expression
georeclim	|- ( ph -> seq 0 ( + , F ) ~~> ( A / ( A - 1 ) ) )

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

Proof of Theorem georeclim

Step	Hyp	Ref	Expression
1		georeclim.1	. . . 4 |- ( ph -> A e. CC )
2	1	abscld 11741	. . . . . 6 |- ( ph -> ( abs ` A ) e. RR )
3		0red 8179	. . . . . . 7 |- ( ph -> 0 e. RR )
4		1red 8193	. . . . . . 7 |- ( ph -> 1 e. RR )
5		0lt1 8305	. . . . . . . 8 |- 0 < 1
6	5	a1i 9	. . . . . . 7 |- ( ph -> 0 < 1 )
7		georeclim.2	. . . . . . 7 |- ( ph -> 1 < ( abs ` A ) )
8	3, 4, 2, 6, 7	lttrd 8304	. . . . . 6 |- ( ph -> 0 < ( abs ` A ) )
9	2, 8	gt0ap0d 8808	. . . . 5 |- ( ph -> ( abs ` A ) # 0 )
10		abs00ap 11622	. . . . . 6 |- ( A e. CC -> ( ( abs ` A ) # 0 <-> A # 0 ) )
11	1, 10	syl 14	. . . . 5 |- ( ph -> ( ( abs ` A ) # 0 <-> A # 0 ) )
12	9, 11	mpbid 147	. . . 4 |- ( ph -> A # 0 )
13	1, 12	recclapd 8960	. . 3 |- ( ph -> ( 1 / A ) e. CC )
14		1cnd 8194	. . . . . 6 |- ( ph -> 1 e. CC )
15	14, 1, 12	absdivapd 11755	. . . . 5 |- ( ph -> ( abs ` ( 1 / A ) ) = ( ( abs ` 1 ) / ( abs ` A ) ) )
16		abs1 11632	. . . . . 6 |- ( abs ` 1 ) = 1
17	16	oveq1i 6027	. . . . 5 |- ( ( abs ` 1 ) / ( abs ` A ) ) = ( 1 / ( abs ` A ) )
18	15, 17	eqtrdi 2280	. . . 4 |- ( ph -> ( abs ` ( 1 / A ) ) = ( 1 / ( abs ` A ) ) )
19	2, 8	elrpd 9927	. . . . . 6 |- ( ph -> ( abs ` A ) e. RR+ )
20	19	recgt1d 9945	. . . . 5 |- ( ph -> ( 1 < ( abs ` A ) <-> ( 1 / ( abs ` A ) ) < 1 ) )
21	7, 20	mpbid 147	. . . 4 |- ( ph -> ( 1 / ( abs ` A ) ) < 1 )
22	18, 21	eqbrtrd 4110	. . 3 |- ( ph -> ( abs ` ( 1 / A ) ) < 1 )
23		georeclim.3	. . 3 |- ( ( ph /\ k e. NN0 ) -> ( F ` k ) = ( ( 1 / A ) ^ k ) )
24	13, 22, 23	geolim 12071	. 2 |- ( ph -> seq 0 ( + , F ) ~~> ( 1 / ( 1 - ( 1 / A ) ) ) )
25	1, 14, 1, 12	divsubdirapd 9009	. . . . 5 |- ( ph -> ( ( A - 1 ) / A ) = ( ( A / A ) - ( 1 / A ) ) )
26	1, 12	dividapd 8965	. . . . . 6 |- ( ph -> ( A / A ) = 1 )
27	26	oveq1d 6032	. . . . 5 |- ( ph -> ( ( A / A ) - ( 1 / A ) ) = ( 1 - ( 1 / A ) ) )
28	25, 27	eqtrd 2264	. . . 4 |- ( ph -> ( ( A - 1 ) / A ) = ( 1 - ( 1 / A ) ) )
29	28	oveq2d 6033	. . 3 |- ( ph -> ( 1 / ( ( A - 1 ) / A ) ) = ( 1 / ( 1 - ( 1 / A ) ) ) )
30		ax-1cn 8124	. . . . 5 |- 1 e. CC
31		subcl 8377	. . . . 5 |- ( ( A e. CC /\ 1 e. CC ) -> ( A - 1 ) e. CC )
32	1, 30, 31	sylancl 413	. . . 4 |- ( ph -> ( A - 1 ) e. CC )
33	4, 6	elrpd 9927	. . . . . 6 |- ( ph -> 1 e. RR+ )
34	1, 33, 7	absgtap 12070	. . . . 5 |- ( ph -> A # 1 )
35	1, 14, 34	subap0d 8823	. . . 4 |- ( ph -> ( A - 1 ) # 0 )
36	32, 1, 35, 12	recdivapd 8986	. . 3 |- ( ph -> ( 1 / ( ( A - 1 ) / A ) ) = ( A / ( A - 1 ) ) )
37	29, 36	eqtr3d 2266	. 2 |- ( ph -> ( 1 / ( 1 - ( 1 / A ) ) ) = ( A / ( A - 1 ) ) )
38	24, 37	breqtrd 4114	1 |- ( ph -> seq 0 ( + , F ) ~~> ( A / ( A - 1 ) ) )

Syntax hints:   -> wi 4   /\ wa 104   <-> wb 105   = wceq 1397   e. wcel 2202   class class class wbr 4088   ` cfv 5326  (class class class)co 6017   CCcc 8029   0cc0 8031   1c1 8032   + caddc 8034   < clt 8213   - cmin 8349   # cap 8760   / cdiv 8851   NN0cn0 9401   seqcseq 10708   ^cexp 10799   abscabs 11557   ~~> cli 11838

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 619  ax-in2 620  ax-io 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-13 2204  ax-14 2205  ax-ext 2213  ax-coll 4204  ax-sep 4207  ax-nul 4215  ax-pow 4264  ax-pr 4299  ax-un 4530  ax-setind 4635  ax-iinf 4686  ax-cnex 8122  ax-resscn 8123  ax-1cn 8124  ax-1re 8125  ax-icn 8126  ax-addcl 8127  ax-addrcl 8128  ax-mulcl 8129  ax-mulrcl 8130  ax-addcom 8131  ax-mulcom 8132  ax-addass 8133  ax-mulass 8134  ax-distr 8135  ax-i2m1 8136  ax-0lt1 8137  ax-1rid 8138  ax-0id 8139  ax-rnegex 8140  ax-precex 8141  ax-cnre 8142  ax-pre-ltirr 8143  ax-pre-ltwlin 8144  ax-pre-lttrn 8145  ax-pre-apti 8146  ax-pre-ltadd 8147  ax-pre-mulgt0 8148  ax-pre-mulext 8149  ax-arch 8150  ax-caucvg 8151

This theorem depends on definitions:  df-bi 117  df-dc 842  df-3or 1005  df-3an 1006  df-tru 1400  df-fal 1403  df-nf 1509  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ne 2403  df-nel 2498  df-ral 2515  df-rex 2516  df-reu 2517  df-rmo 2518  df-rab 2519  df-v 2804  df-sbc 3032  df-csb 3128  df-dif 3202  df-un 3204  df-in 3206  df-ss 3213  df-nul 3495  df-if 3606  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-int 3929  df-iun 3972  df-br 4089  df-opab 4151  df-mpt 4152  df-tr 4188  df-id 4390  df-po 4393  df-iso 4394  df-iord 4463  df-on 4465  df-ilim 4466  df-suc 4468  df-iom 4689  df-xp 4731  df-rel 4732  df-cnv 4733  df-co 4734  df-dm 4735  df-rn 4736  df-res 4737  df-ima 4738  df-iota 5286  df-fun 5328  df-fn 5329  df-f 5330  df-f1 5331  df-fo 5332  df-f1o 5333  df-fv 5334  df-isom 5335  df-riota 5970  df-ov 6020  df-oprab 6021  df-mpo 6022  df-1st 6302  df-2nd 6303  df-recs 6470  df-irdg 6535  df-frec 6556  df-1o 6581  df-oadd 6585  df-er 6701  df-en 6909  df-dom 6910  df-fin 6911  df-pnf 8215  df-mnf 8216  df-xr 8217  df-ltxr 8218  df-le 8219  df-sub 8351  df-neg 8352  df-reap 8754  df-ap 8761  df-div 8852  df-inn 9143  df-2 9201  df-3 9202  df-4 9203  df-n0 9402  df-z 9479  df-uz 9755  df-q 9853  df-rp 9888  df-fz 10243  df-fzo 10377  df-seqfrec 10709  df-exp 10800  df-ihash 11037  df-cj 11402  df-re 11403  df-im 11404  df-rsqrt 11558  df-abs 11559  df-clim 11839  df-sumdc 11914

This theorem is referenced by:  geoisumr  12078  ege2le3  12231  eftlub  12250