Theorem seqcaopr 12838

Description: The sum of two infinite series (generalized to an arbitrary commutative and associative operation). (Contributed by NM, 17-Mar-2005.) (Revised by Mario Carneiro, 30-May-2014.)

Hypotheses

Ref	Expression
seqcaopr.1	|- ( ( ph /\ ( x e. S /\ y e. S ) ) -> ( x .+ y ) e. S )
seqcaopr.2	|- ( ( ph /\ ( x e. S /\ y e. S ) ) -> ( x .+ y ) = ( y .+ x ) )
seqcaopr.3	|- ( ( ph /\ ( x e. S /\ y e. S /\ z e. S ) ) -> ( ( x .+ y ) .+ z ) = ( x .+ ( y .+ z ) ) )
seqcaopr.4	|- ( ph -> N e. ( ZZ>= ` M ) )
seqcaopr.5	|- ( ( ph /\ k e. ( M ... N ) ) -> ( F ` k ) e. S )
seqcaopr.6	|- ( ( ph /\ k e. ( M ... N ) ) -> ( G ` k ) e. S )
seqcaopr.7	|- ( ( ph /\ k e. ( M ... N ) ) -> ( H ` k ) = ( ( F ` k ) .+ ( G ` k ) ) )

Assertion

Ref	Expression
seqcaopr	|- ( ph -> ( seq M ( .+ , H ) ` N ) = ( ( seq M ( .+ , F ) ` N ) .+ ( seq M ( .+ , G ) ` N ) ) )

Distinct variable groups:   k, F   k, G   k, H   x, k, y, z, ph   k, M   .+ , k, x, y, z   S, k, x, y, z   k, N

Allowed substitution hints:   F( x, y, z)   G( x, y, z)   H( x, y, z)   M( x, y, z)   N( x, y, z)

Proof of Theorem seqcaopr

Dummy variables a b c d are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		seqcaopr.1	. . 3 |- ( ( ph /\ ( x e. S /\ y e. S ) ) -> ( x .+ y ) e. S )
2	1	caovclg 6826	. 2 |- ( ( ph /\ ( a e. S /\ b e. S ) ) -> ( a .+ b ) e. S )
3		simpl 473	. . . . . . 7 |- ( ( ph /\ ( ( a e. S /\ b e. S ) /\ ( c e. S /\ d e. S ) ) ) -> ph )
4		simprrl 804	. . . . . . 7 |- ( ( ph /\ ( ( a e. S /\ b e. S ) /\ ( c e. S /\ d e. S ) ) ) -> c e. S )
5		simprlr 803	. . . . . . 7 |- ( ( ph /\ ( ( a e. S /\ b e. S ) /\ ( c e. S /\ d e. S ) ) ) -> b e. S )
6		seqcaopr.2	. . . . . . . 8 |- ( ( ph /\ ( x e. S /\ y e. S ) ) -> ( x .+ y ) = ( y .+ x ) )
7	6	caovcomg 6829	. . . . . . 7 |- ( ( ph /\ ( c e. S /\ b e. S ) ) -> ( c .+ b ) = ( b .+ c ) )
8	3, 4, 5, 7	syl12anc 1324	. . . . . 6 |- ( ( ph /\ ( ( a e. S /\ b e. S ) /\ ( c e. S /\ d e. S ) ) ) -> ( c .+ b ) = ( b .+ c ) )
9	8	oveq1d 6665	. . . . 5 |- ( ( ph /\ ( ( a e. S /\ b e. S ) /\ ( c e. S /\ d e. S ) ) ) -> ( ( c .+ b ) .+ d ) = ( ( b .+ c ) .+ d ) )
10		simprrr 805	. . . . . 6 |- ( ( ph /\ ( ( a e. S /\ b e. S ) /\ ( c e. S /\ d e. S ) ) ) -> d e. S )
11		seqcaopr.3	. . . . . . 7 |- ( ( ph /\ ( x e. S /\ y e. S /\ z e. S ) ) -> ( ( x .+ y ) .+ z ) = ( x .+ ( y .+ z ) ) )
12	11	caovassg 6832	. . . . . 6 |- ( ( ph /\ ( c e. S /\ b e. S /\ d e. S ) ) -> ( ( c .+ b ) .+ d ) = ( c .+ ( b .+ d ) ) )
13	3, 4, 5, 10, 12	syl13anc 1328	. . . . 5 |- ( ( ph /\ ( ( a e. S /\ b e. S ) /\ ( c e. S /\ d e. S ) ) ) -> ( ( c .+ b ) .+ d ) = ( c .+ ( b .+ d ) ) )
14	11	caovassg 6832	. . . . . 6 |- ( ( ph /\ ( b e. S /\ c e. S /\ d e. S ) ) -> ( ( b .+ c ) .+ d ) = ( b .+ ( c .+ d ) ) )
15	3, 5, 4, 10, 14	syl13anc 1328	. . . . 5 |- ( ( ph /\ ( ( a e. S /\ b e. S ) /\ ( c e. S /\ d e. S ) ) ) -> ( ( b .+ c ) .+ d ) = ( b .+ ( c .+ d ) ) )
16	9, 13, 15	3eqtr3d 2664	. . . 4 |- ( ( ph /\ ( ( a e. S /\ b e. S ) /\ ( c e. S /\ d e. S ) ) ) -> ( c .+ ( b .+ d ) ) = ( b .+ ( c .+ d ) ) )
17	16	oveq2d 6666	. . 3 |- ( ( ph /\ ( ( a e. S /\ b e. S ) /\ ( c e. S /\ d e. S ) ) ) -> ( a .+ ( c .+ ( b .+ d ) ) ) = ( a .+ ( b .+ ( c .+ d ) ) ) )
18		simprll 802	. . . 4 |- ( ( ph /\ ( ( a e. S /\ b e. S ) /\ ( c e. S /\ d e. S ) ) ) -> a e. S )
19	1	caovclg 6826	. . . . 5 |- ( ( ph /\ ( b e. S /\ d e. S ) ) -> ( b .+ d ) e. S )
20	3, 5, 10, 19	syl12anc 1324	. . . 4 |- ( ( ph /\ ( ( a e. S /\ b e. S ) /\ ( c e. S /\ d e. S ) ) ) -> ( b .+ d ) e. S )
21	11	caovassg 6832	. . . 4 |- ( ( ph /\ ( a e. S /\ c e. S /\ ( b .+ d ) e. S ) ) -> ( ( a .+ c ) .+ ( b .+ d ) ) = ( a .+ ( c .+ ( b .+ d ) ) ) )
22	3, 18, 4, 20, 21	syl13anc 1328	. . 3 |- ( ( ph /\ ( ( a e. S /\ b e. S ) /\ ( c e. S /\ d e. S ) ) ) -> ( ( a .+ c ) .+ ( b .+ d ) ) = ( a .+ ( c .+ ( b .+ d ) ) ) )
23	1	caovclg 6826	. . . . 5 |- ( ( ph /\ ( c e. S /\ d e. S ) ) -> ( c .+ d ) e. S )
24	23	adantrl 752	. . . 4 |- ( ( ph /\ ( ( a e. S /\ b e. S ) /\ ( c e. S /\ d e. S ) ) ) -> ( c .+ d ) e. S )
25	11	caovassg 6832	. . . 4 |- ( ( ph /\ ( a e. S /\ b e. S /\ ( c .+ d ) e. S ) ) -> ( ( a .+ b ) .+ ( c .+ d ) ) = ( a .+ ( b .+ ( c .+ d ) ) ) )
26	3, 18, 5, 24, 25	syl13anc 1328	. . 3 |- ( ( ph /\ ( ( a e. S /\ b e. S ) /\ ( c e. S /\ d e. S ) ) ) -> ( ( a .+ b ) .+ ( c .+ d ) ) = ( a .+ ( b .+ ( c .+ d ) ) ) )
27	17, 22, 26	3eqtr4d 2666	. 2 |- ( ( ph /\ ( ( a e. S /\ b e. S ) /\ ( c e. S /\ d e. S ) ) ) -> ( ( a .+ c ) .+ ( b .+ d ) ) = ( ( a .+ b ) .+ ( c .+ d ) ) )
28		seqcaopr.4	. 2 |- ( ph -> N e. ( ZZ>= ` M ) )
29		seqcaopr.5	. 2 |- ( ( ph /\ k e. ( M ... N ) ) -> ( F ` k ) e. S )
30		seqcaopr.6	. 2 |- ( ( ph /\ k e. ( M ... N ) ) -> ( G ` k ) e. S )
31		seqcaopr.7	. 2 |- ( ( ph /\ k e. ( M ... N ) ) -> ( H ` k ) = ( ( F ` k ) .+ ( G ` k ) ) )
32	2, 2, 27, 28, 29, 30, 31	seqcaopr2 12837	1 |- ( ph -> ( seq M ( .+ , H ) ` N ) = ( ( seq M ( .+ , F ) ` N ) .+ ( seq M ( .+ , G ) ` N ) ) )

Syntax hints:   -> wi 4   /\ wa 384   /\ w3a 1037   = wceq 1483   e. wcel 1990   ` cfv 5888  (class class class)co 6650   ZZ>=cuz 11687   ...cfz 12326   seqcseq 12801

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949  ax-cnex 9992  ax-resscn 9993  ax-1cn 9994  ax-icn 9995  ax-addcl 9996  ax-addrcl 9997  ax-mulcl 9998  ax-mulrcl 9999  ax-mulcom 10000  ax-addass 10001  ax-mulass 10002  ax-distr 10003  ax-i2m1 10004  ax-1ne0 10005  ax-1rid 10006  ax-rnegex 10007  ax-rrecex 10008  ax-cnre 10009  ax-pre-lttri 10010  ax-pre-lttrn 10011  ax-pre-ltadd 10012  ax-pre-mulgt0 10013

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1038  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-nel 2898  df-ral 2917  df-rex 2918  df-reu 2919  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-pss 3590  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-tp 4182  df-op 4184  df-uni 4437  df-iun 4522  df-br 4654  df-opab 4713  df-mpt 4730  df-tr 4753  df-id 5024  df-eprel 5029  df-po 5035  df-so 5036  df-fr 5073  df-we 5075  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-pred 5680  df-ord 5726  df-on 5727  df-lim 5728  df-suc 5729  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-riota 6611  df-ov 6653  df-oprab 6654  df-mpt2 6655  df-om 7066  df-1st 7168  df-2nd 7169  df-wrecs 7407  df-recs 7468  df-rdg 7506  df-er 7742  df-en 7956  df-dom 7957  df-sdom 7958  df-pnf 10076  df-mnf 10077  df-xr 10078  df-ltxr 10079  df-le 10080  df-sub 10268  df-neg 10269  df-nn 11021  df-n0 11293  df-z 11378  df-uz 11688  df-fz 12327  df-fzo 12466  df-seq 12802

This theorem is referenced by:  seradd  12843  prodfmul  14622  mulgnn0di  18231  lgsdir  25057  lgsdi  25059