Theorem gsumpropd 16459

Description: The group sum depends only on the base set and additive operation. Note that for entirely unrestricted functions, there can be dependency on out-of-domain values of the operation, so this is somewhat weaker than mndpropd 16506 etc. (Contributed by Stefan O'Rear, 1-Feb-2015.) (Proof shortened by Mario Carneiro, 18-Sep-2015.)

Hypotheses

Ref	Expression
gsumpropd.f	|- ( ph -> F e. V )
gsumpropd.g	|- ( ph -> G e. W )
gsumpropd.h	|- ( ph -> H e. X )
gsumpropd.b	|- ( ph -> ( Base ` G ) = ( Base ` H ) )
gsumpropd.p	|- ( ph -> ( +g ` G ) = ( +g ` H ) )

Assertion

Ref	Expression
gsumpropd	|- ( ph -> ( G gsumg F ) = ( H gsumg F ) )

Proof of Theorem gsumpropd

Dummy variables a b f m n s t x are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		gsumpropd.b	. . . . 5 |- ( ph -> ( Base ` G ) = ( Base ` H ) )
2		gsumpropd.p	. . . . . . . . 9 |- ( ph -> ( +g ` G ) = ( +g ` H ) )
3	2	oveqd 6313	. . . . . . . 8 |- ( ph -> ( s ( +g ` G ) t ) = ( s ( +g ` H ) t ) )
4	3	eqeq1d 2422	. . . . . . 7 |- ( ph -> ( ( s ( +g ` G ) t ) = t <-> ( s ( +g ` H ) t ) = t ) )
5	2	oveqd 6313	. . . . . . . 8 |- ( ph -> ( t ( +g ` G ) s ) = ( t ( +g ` H ) s ) )
6	5	eqeq1d 2422	. . . . . . 7 |- ( ph -> ( ( t ( +g ` G ) s ) = t <-> ( t ( +g ` H ) s ) = t ) )
7	4, 6	anbi12d 715	. . . . . 6 |- ( ph -> ( ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) <-> ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) ) )
8	1, 7	raleqbidv 3037	. . . . 5 |- ( ph -> ( A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) <-> A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) ) )
9	1, 8	rabeqbidv 3073	. . . 4 |- ( ph -> { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } = { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } )
10	9	sseq2d 3489	. . 3 |- ( ph -> ( ran F C_ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } <-> ran F C_ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) )
11		eqidd 2421	. . . 4 |- ( ph -> ( Base ` G ) = ( Base ` G ) )
12	2	oveqdr 6320	. . . 4 |- ( ( ph /\ ( a e. ( Base ` G ) /\ b e. ( Base ` G ) ) ) -> ( a ( +g ` G ) b ) = ( a ( +g ` H ) b ) )
13	11, 1, 12	grpidpropd 16448	. . 3 |- ( ph -> ( 0g ` G ) = ( 0g ` H ) )
14	2	seqeq2d 12206	. . . . . . . . . 10 |- ( ph -> seq m ( ( +g ` G ) , F ) = seq m ( ( +g ` H ) , F ) )
15	14	fveq1d 5874	. . . . . . . . 9 |- ( ph -> ( seq m ( ( +g ` G ) , F ) ` n ) = ( seq m ( ( +g ` H ) , F ) ` n ) )
16	15	eqeq2d 2434	. . . . . . . 8 |- ( ph -> ( x = ( seq m ( ( +g ` G ) , F ) ` n ) <-> x = ( seq m ( ( +g ` H ) , F ) ` n ) ) )
17	16	anbi2d 708	. . . . . . 7 |- ( ph -> ( ( dom F = ( m ... n ) /\ x = ( seq m ( ( +g ` G ) , F ) ` n ) ) <-> ( dom F = ( m ... n ) /\ x = ( seq m ( ( +g ` H ) , F ) ` n ) ) ) )
18	17	rexbidv 2937	. . . . . 6 |- ( ph -> ( E. n e. ( ZZ>= ` m ) ( dom F = ( m ... n ) /\ x = ( seq m ( ( +g ` G ) , F ) ` n ) ) <-> E. n e. ( ZZ>= ` m ) ( dom F = ( m ... n ) /\ x = ( seq m ( ( +g ` H ) , F ) ` n ) ) ) )
19	18	exbidv 1758	. . . . 5 |- ( ph -> ( E. m E. n e. ( ZZ>= ` m ) ( dom F = ( m ... n ) /\ x = ( seq m ( ( +g ` G ) , F ) ` n ) ) <-> E. m E. n e. ( ZZ>= ` m ) ( dom F = ( m ... n ) /\ x = ( seq m ( ( +g ` H ) , F ) ` n ) ) ) )
20	19	iotabidv 5577	. . . 4 |- ( ph -> ( iota x E. m E. n e. ( ZZ>= ` m ) ( dom F = ( m ... n ) /\ x = ( seq m ( ( +g ` G ) , F ) ` n ) ) ) = ( iota x E. m E. n e. ( ZZ>= ` m ) ( dom F = ( m ... n ) /\ x = ( seq m ( ( +g ` H ) , F ) ` n ) ) ) )
21	9	difeq2d 3580	. . . . . . . . . . . 12 |- ( ph -> ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) = ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) )
22	21	imaeq2d 5179	. . . . . . . . . . 11 |- ( ph -> ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) = ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) )
23	22	fveq2d 5876	. . . . . . . . . 10 |- ( ph -> ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) = ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) )
24	23	oveq2d 6312	. . . . . . . . 9 |- ( ph -> ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) = ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) )
25		f1oeq2 5814	. . . . . . . . 9 |- ( ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) = ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) -> ( f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) <-> f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) )
26	24, 25	syl 17	. . . . . . . 8 |- ( ph -> ( f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) <-> f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) )
27		f1oeq3 5815	. . . . . . . . 9 |- ( ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) = ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) -> ( f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) <-> f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) )
28	22, 27	syl 17	. . . . . . . 8 |- ( ph -> ( f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) <-> f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) )
29	26, 28	bitrd 256	. . . . . . 7 |- ( ph -> ( f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) <-> f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) )
30	2	seqeq2d 12206	. . . . . . . . 9 |- ( ph -> seq 1 ( ( +g ` G ) , ( F o. f ) ) = seq 1 ( ( +g ` H ) , ( F o. f ) ) )
31	30, 23	fveq12d 5878	. . . . . . . 8 |- ( ph -> ( seq 1 ( ( +g ` G ) , ( F o. f ) ) ` ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) = ( seq 1 ( ( +g ` H ) , ( F o. f ) ) ` ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) )
32	31	eqeq2d 2434	. . . . . . 7 |- ( ph -> ( x = ( seq 1 ( ( +g ` G ) , ( F o. f ) ) ` ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) <-> x = ( seq 1 ( ( +g ` H ) , ( F o. f ) ) ` ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) ) )
33	29, 32	anbi12d 715	. . . . . 6 |- ( ph -> ( ( f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) /\ x = ( seq 1 ( ( +g ` G ) , ( F o. f ) ) ` ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) ) <-> ( f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) /\ x = ( seq 1 ( ( +g ` H ) , ( F o. f ) ) ` ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) ) ) )
34	33	exbidv 1758	. . . . 5 |- ( ph -> ( E. f ( f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) /\ x = ( seq 1 ( ( +g ` G ) , ( F o. f ) ) ` ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) ) <-> E. f ( f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) /\ x = ( seq 1 ( ( +g ` H ) , ( F o. f ) ) ` ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) ) ) )
35	34	iotabidv 5577	. . . 4 |- ( ph -> ( iota x E. f ( f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) /\ x = ( seq 1 ( ( +g ` G ) , ( F o. f ) ) ` ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) ) ) = ( iota x E. f ( f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) /\ x = ( seq 1 ( ( +g ` H ) , ( F o. f ) ) ` ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) ) ) )
36	20, 35	ifeq12d 3926	. . 3 |- ( ph -> if ( dom F e. ran ... , ( iota x E. m E. n e. ( ZZ>= ` m ) ( dom F = ( m ... n ) /\ x = ( seq m ( ( +g ` G ) , F ) ` n ) ) ) , ( iota x E. f ( f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) /\ x = ( seq 1 ( ( +g ` G ) , ( F o. f ) ) ` ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) ) ) ) = if ( dom F e. ran ... , ( iota x E. m E. n e. ( ZZ>= ` m ) ( dom F = ( m ... n ) /\ x = ( seq m ( ( +g ` H ) , F ) ` n ) ) ) , ( iota x E. f ( f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) /\ x = ( seq 1 ( ( +g ` H ) , ( F o. f ) ) ` ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) ) ) ) )
37	10, 13, 36	ifbieq12d 3933	. 2 |- ( ph -> if ( ran F C_ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } , ( 0g ` G ) , if ( dom F e. ran ... , ( iota x E. m E. n e. ( ZZ>= ` m ) ( dom F = ( m ... n ) /\ x = ( seq m ( ( +g ` G ) , F ) ` n ) ) ) , ( iota x E. f ( f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) /\ x = ( seq 1 ( ( +g ` G ) , ( F o. f ) ) ` ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) ) ) ) ) = if ( ran F C_ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } , ( 0g ` H ) , if ( dom F e. ran ... , ( iota x E. m E. n e. ( ZZ>= ` m ) ( dom F = ( m ... n ) /\ x = ( seq m ( ( +g ` H ) , F ) ` n ) ) ) , ( iota x E. f ( f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) /\ x = ( seq 1 ( ( +g ` H ) , ( F o. f ) ) ` ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) ) ) ) ) )
38		eqid 2420	. . 3 |- ( Base ` G ) = ( Base ` G )
39		eqid 2420	. . 3 |- ( 0g ` G ) = ( 0g ` G )
40		eqid 2420	. . 3 |- ( +g ` G ) = ( +g ` G )
41		eqid 2420	. . 3 |- { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } = { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) }
42		eqidd 2421	. . 3 |- ( ph -> ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) = ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) )
43		gsumpropd.g	. . 3 |- ( ph -> G e. W )
44		gsumpropd.f	. . 3 |- ( ph -> F e. V )
45		eqidd 2421	. . 3 |- ( ph -> dom F = dom F )
46	38, 39, 40, 41, 42, 43, 44, 45	gsumvalx 16457	. 2 |- ( ph -> ( G gsumg F ) = if ( ran F C_ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } , ( 0g ` G ) , if ( dom F e. ran ... , ( iota x E. m E. n e. ( ZZ>= ` m ) ( dom F = ( m ... n ) /\ x = ( seq m ( ( +g ` G ) , F ) ` n ) ) ) , ( iota x E. f ( f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) /\ x = ( seq 1 ( ( +g ` G ) , ( F o. f ) ) ` ( # ` ( `' F " ( _V \ { s e. ( Base ` G ) | A. t e. ( Base ` G ) ( ( s ( +g ` G ) t ) = t /\ ( t ( +g ` G ) s ) = t ) } ) ) ) ) ) ) ) ) )
47		eqid 2420	. . 3 |- ( Base ` H ) = ( Base ` H )
48		eqid 2420	. . 3 |- ( 0g ` H ) = ( 0g ` H )
49		eqid 2420	. . 3 |- ( +g ` H ) = ( +g ` H )
50		eqid 2420	. . 3 |- { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } = { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) }
51		eqidd 2421	. . 3 |- ( ph -> ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) = ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) )
52		gsumpropd.h	. . 3 |- ( ph -> H e. X )
53	47, 48, 49, 50, 51, 52, 44, 45	gsumvalx 16457	. 2 |- ( ph -> ( H gsumg F ) = if ( ran F C_ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } , ( 0g ` H ) , if ( dom F e. ran ... , ( iota x E. m E. n e. ( ZZ>= ` m ) ( dom F = ( m ... n ) /\ x = ( seq m ( ( +g ` H ) , F ) ` n ) ) ) , ( iota x E. f ( f : ( 1 ... ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) -1-1-onto-> ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) /\ x = ( seq 1 ( ( +g ` H ) , ( F o. f ) ) ` ( # ` ( `' F " ( _V \ { s e. ( Base ` H ) | A. t e. ( Base ` H ) ( ( s ( +g ` H ) t ) = t /\ ( t ( +g ` H ) s ) = t ) } ) ) ) ) ) ) ) ) )
54	37, 46, 53	3eqtr4d 2471	1 |- ( ph -> ( G gsumg F ) = ( H gsumg F ) )

Syntax hints:   -> wi 4   <-> wb 187   /\ wa 370   = wceq 1437   E.wex 1659   e. wcel 1867   A.wral 2773   E.wrex 2774   {crab 2777   _Vcvv 3078   \ cdif 3430   C_ wss 3433   ifcif 3906   `'ccnv 4844   dom cdm 4845   ran crn 4846   "cima 4848   o. ccom 4849   iotacio 5554   -1-1-onto->wf1o 5591   ` cfv 5592  (class class class)co 6296   1c1 9529   ZZ>=cuz 11148   ...cfz 11771   seqcseq 12199   #chash 12501   Basecbs 15073   +g cplusg 15142   0gc0g 15290   gsum_g cgsu 15291

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1665  ax-4 1678  ax-5 1748  ax-6 1794  ax-7 1838  ax-8 1869  ax-9 1871  ax-10 1886  ax-11 1891  ax-12 1904  ax-13 2052  ax-ext 2398  ax-sep 4539  ax-nul 4547  ax-pow 4594  ax-pr 4652  ax-un 6588

This theorem depends on definitions:  df-bi 188  df-or 371  df-an 372  df-3an 984  df-tru 1440  df-ex 1660  df-nf 1664  df-sb 1787  df-eu 2267  df-mo 2268  df-clab 2406  df-cleq 2412  df-clel 2415  df-nfc 2570  df-ne 2618  df-ral 2778  df-rex 2779  df-rab 2782  df-v 3080  df-sbc 3297  df-csb 3393  df-dif 3436  df-un 3438  df-in 3440  df-ss 3447  df-nul 3759  df-if 3907  df-pw 3978  df-sn 3994  df-pr 3996  df-op 4000  df-uni 4214  df-br 4418  df-opab 4476  df-mpt 4477  df-id 4760  df-xp 4851  df-rel 4852  df-cnv 4853  df-co 4854  df-dm 4855  df-rn 4856  df-res 4857  df-ima 4858  df-pred 5390  df-iota 5556  df-fun 5594  df-fn 5595  df-f 5596  df-f1 5597  df-fo 5598  df-f1o 5599  df-fv 5600  df-ov 6299  df-oprab 6300  df-mpt2 6301  df-wrecs 7027  df-recs 7089  df-rdg 7127  df-seq 12200  df-0g 15292  df-gsum 15293

This theorem is referenced by:  psropprmul  18759  ply1coe  18817  ply1coeOLD  18818  frlmgsum  19254  matgsum  19386  tsmspropd  21070