Theorem iser3shft 12090

Description: Index shift of the limit of an infinite series. (Contributed by Mario Carneiro, 6-Sep-2013.) (Revised by Jim Kingdon, 17-Oct-2022.)

Hypotheses

Ref	Expression
iser3shft.ex	|- ( ph -> F e. V )
iser3shft.m	|- ( ph -> M e. ZZ )
iser3shft.n	|- ( ph -> N e. ZZ )
iser3shft.fm	|- ( ( ph /\ x e. ( ZZ>= ` M ) ) -> ( F ` x ) e. S )
iser3shft.pl	|- ( ( ph /\ ( x e. S /\ y e. S ) ) -> ( x .+ y ) e. S )

Assertion

Ref	Expression
iser3shft	|- ( ph -> ( seq M ( .+ , F ) ~~> A <-> seq ( M + N ) ( .+ , ( F shift N ) ) ~~> A ) )

Distinct variable groups:   x, .+ , y   x, F, y   x, M, y   x, N, y   x, S, y   ph, x, y

Allowed substitution hints:   A( x, y)   V( x, y)

Proof of Theorem iser3shft

Step	Hyp	Ref	Expression
1		iser3shft.ex	. . . . 5 |- ( ph -> F e. V )
2		iser3shft.m	. . . . . 6 |- ( ph -> M e. ZZ )
3		iser3shft.n	. . . . . 6 |- ( ph -> N e. ZZ )
4	2, 3	zaddcld 9751	. . . . 5 |- ( ph -> ( M + N ) e. ZZ )
5	2	zcnd 9748	. . . . . . . . . 10 |- ( ph -> M e. CC )
6	3	zcnd 9748	. . . . . . . . . 10 |- ( ph -> N e. CC )
7	5, 6	pncand 8628	. . . . . . . . 9 |- ( ph -> ( ( M + N ) - N ) = M )
8	7	fveq2d 5694	. . . . . . . 8 |- ( ph -> ( ZZ>= ` ( ( M + N ) - N ) ) = ( ZZ>= ` M ) )
9	8	eleq2d 2308	. . . . . . 7 |- ( ph -> ( x e. ( ZZ>= ` ( ( M + N ) - N ) ) <-> x e. ( ZZ>= ` M ) ) )
10	9	pm5.32i 458	. . . . . 6 |- ( ( ph /\ x e. ( ZZ>= ` ( ( M + N ) - N ) ) ) <-> ( ph /\ x e. ( ZZ>= ` M ) ) )
11		iser3shft.fm	. . . . . 6 |- ( ( ph /\ x e. ( ZZ>= ` M ) ) -> ( F ` x ) e. S )
12	10, 11	sylbi 121	. . . . 5 |- ( ( ph /\ x e. ( ZZ>= ` ( ( M + N ) - N ) ) ) -> ( F ` x ) e. S )
13		iser3shft.pl	. . . . 5 |- ( ( ph /\ ( x e. S /\ y e. S ) ) -> ( x .+ y ) e. S )
14	1, 4, 3, 12, 13	seq3shft 11581	. . . 4 |- ( ph -> seq ( M + N ) ( .+ , ( F shift N ) ) = ( seq ( ( M + N ) - N ) ( .+ , F ) shift N ) )
15	7	seqeq1d 10868	. . . . 5 |- ( ph -> seq ( ( M + N ) - N ) ( .+ , F ) = seq M ( .+ , F ) )
16	15	oveq1d 6090	. . . 4 |- ( ph -> ( seq ( ( M + N ) - N ) ( .+ , F ) shift N ) = ( seq M ( .+ , F ) shift N ) )
17	14, 16	eqtrd 2271	. . 3 |- ( ph -> seq ( M + N ) ( .+ , ( F shift N ) ) = ( seq M ( .+ , F ) shift N ) )
18	17	breq1d 4135	. 2 |- ( ph -> ( seq ( M + N ) ( .+ , ( F shift N ) ) ~~> A <-> ( seq M ( .+ , F ) shift N ) ~~> A ) )
19		seqex 10864	. . 3 |- seq M ( .+ , F ) e. _V
20		climshft 12048	. . 3 |- ( ( N e. ZZ /\ seq M ( .+ , F ) e. _V ) -> ( ( seq M ( .+ , F ) shift N ) ~~> A <-> seq M ( .+ , F ) ~~> A ) )
21	3, 19, 20	sylancl 417	. 2 |- ( ph -> ( ( seq M ( .+ , F ) shift N ) ~~> A <-> seq M ( .+ , F ) ~~> A ) )
22	18, 21	bitr2d 189	1 |- ( ph -> ( seq M ( .+ , F ) ~~> A <-> seq ( M + N ) ( .+ , ( F shift N ) ) ~~> A ) )

Syntax hints:   -> wi 4   /\ wa 104   <-> wb 105   e. wcel 2209   _Vcvv 2821   class class class wbr 4125   ` cfv 5372  (class class class)co 6075   + caddc 8172   - cmin 8487   ZZcz 9623   ZZ>=cuz 9900   seqcseq 10862   shift cshi 11557   ~~> cli 12022

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 623  ax-in2 624  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-coll 4241  ax-sep 4244  ax-nul 4254  ax-pow 4306  ax-pr 4341  ax-un 4573  ax-setind 4679  ax-iinf 4730  ax-cnex 8260  ax-resscn 8261  ax-1cn 8262  ax-1re 8263  ax-icn 8264  ax-addcl 8265  ax-addrcl 8266  ax-mulcl 8267  ax-addcom 8269  ax-addass 8271  ax-distr 8273  ax-i2m1 8274  ax-0lt1 8275  ax-0id 8277  ax-rnegex 8278  ax-cnre 8280  ax-pre-ltirr 8281  ax-pre-ltwlin 8282  ax-pre-lttrn 8283  ax-pre-apti 8284  ax-pre-ltadd 8285

This theorem depends on definitions:  df-bi 117  df-dc 847  df-3or 1010  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ne 2421  df-nel 2516  df-ral 2533  df-rex 2534  df-reu 2535  df-rab 2537  df-v 2823  df-sbc 3052  df-csb 3148  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-nul 3521  df-if 3636  df-pw 3687  df-sn 3711  df-pr 3712  df-op 3714  df-uni 3931  df-int 3966  df-iun 4009  df-br 4126  df-opab 4188  df-mpt 4189  df-tr 4225  df-id 4433  df-iord 4506  df-on 4508  df-ilim 4509  df-suc 4511  df-iom 4733  df-xp 4775  df-rel 4776  df-cnv 4777  df-co 4778  df-dm 4779  df-rn 4780  df-res 4781  df-ima 4782  df-iota 5332  df-fun 5374  df-fn 5375  df-f 5376  df-f1 5377  df-fo 5378  df-f1o 5379  df-fv 5380  df-riota 6028  df-ov 6078  df-oprab 6079  df-mpo 6080  df-1st 6364  df-2nd 6365  df-recs 6566  df-frec 6652  df-pnf 8352  df-mnf 8353  df-xr 8354  df-ltxr 8355  df-le 8356  df-sub 8489  df-neg 8490  df-inn 9284  df-n0 9543  df-z 9624  df-uz 9901  df-fz 10391  df-seqfrec 10863  df-shft 11558  df-clim 12023

This theorem is referenced by:  isumshft  12235