Theorem gsumfzsnfd 14051

Description: Group sum of a singleton, deduction form, using bound-variable hypotheses instead of distinct variable conditions. (Contributed by Mario Carneiro, 19-Dec-2014.) (Revised by Thierry Arnoux, 28-Mar-2018.) (Revised by AV, 11-Dec-2019.)

Hypotheses

Ref	Expression
gsumsnd.b	|- B = ( Base ` G )
gsumsnd.g	|- ( ph -> G e. Mnd )
gsumfzsnd.m	|- ( ph -> M e. ZZ )
gsumsnd.c	|- ( ph -> C e. B )
gsumsnd.s	|- ( ( ph /\ k = M ) -> A = C )
gsumsnfd.p	|- F/ k ph
gsumsnfd.c	|- F/_ k C

Assertion

Ref	Expression
gsumfzsnfd	|- ( ph -> ( G gsumg ( k e. { M } |-> A ) ) = C )

Distinct variable group:   k, M

Allowed substitution hints:   ph( k)   A( k)   B( k)   C( k)   G( k)

Proof of Theorem gsumfzsnfd

Step	Hyp	Ref	Expression
1		gsumsnfd.p	. . . . 5 |- F/ k ph
2		elsni 3706	. . . . . 6 |- ( k e. { M } -> k = M )
3		gsumsnd.s	. . . . . 6 |- ( ( ph /\ k = M ) -> A = C )
4	2, 3	sylan2 286	. . . . 5 |- ( ( ph /\ k e. { M } ) -> A = C )
5	1, 4	mpteq2da 4198	. . . 4 |- ( ph -> ( k e. { M } |-> A ) = ( k e. { M } |-> C ) )
6	5	oveq2d 6065	. . 3 |- ( ph -> ( G gsumg ( k e. { M } |-> A ) ) = ( G gsumg ( k e. { M } |-> C ) ) )
7		gsumfzsnd.m	. . . . . 6 |- ( ph -> M e. ZZ )
8		fzsn 10396	. . . . . 6 |- ( M e. ZZ -> ( M ... M ) = { M } )
9	7, 8	syl 14	. . . . 5 |- ( ph -> ( M ... M ) = { M } )
10	9	mpteq1d 4194	. . . 4 |- ( ph -> ( k e. ( M ... M ) |-> C ) = ( k e. { M } |-> C ) )
11	10	oveq2d 6065	. . 3 |- ( ph -> ( G gsumg ( k e. ( M ... M ) |-> C ) ) = ( G gsumg ( k e. { M } |-> C ) ) )
12		gsumsnd.g	. . . 4 |- ( ph -> G e. Mnd )
13	7	uzidd 9865	. . . 4 |- ( ph -> M e. ( ZZ>= ` M ) )
14		gsumsnd.c	. . . 4 |- ( ph -> C e. B )
15		gsumsnfd.c	. . . . 5 |- F/_ k C
16		gsumsnd.b	. . . . 5 |- B = ( Base ` G )
17		eqid 2232	. . . . 5 |- (.g ` G ) = (.g ` G )
18	15, 16, 17	gsumfzconstf 14048	. . . 4 |- ( ( G e. Mnd /\ M e. ( ZZ>= ` M ) /\ C e. B ) -> ( G gsumg ( k e. ( M ... M ) |-> C ) ) = ( ( ( M - M ) + 1 ) (.g ` G ) C ) )
19	12, 13, 14, 18	syl3anc 1274	. . 3 |- ( ph -> ( G gsumg ( k e. ( M ... M ) |-> C ) ) = ( ( ( M - M ) + 1 ) (.g ` G ) C ) )
20	6, 11, 19	3eqtr2d 2271	. 2 |- ( ph -> ( G gsumg ( k e. { M } |-> A ) ) = ( ( ( M - M ) + 1 ) (.g ` G ) C ) )
21	7	zcnd 9697	. . . . . 6 |- ( ph -> M e. CC )
22	21	subidd 8568	. . . . 5 |- ( ph -> ( M - M ) = 0 )
23	22	oveq1d 6064	. . . 4 |- ( ph -> ( ( M - M ) + 1 ) = ( 0 + 1 ) )
24		0p1e1 9347	. . . 4 |- ( 0 + 1 ) = 1
25	23, 24	eqtrdi 2281	. . 3 |- ( ph -> ( ( M - M ) + 1 ) = 1 )
26	25	oveq1d 6064	. 2 |- ( ph -> ( ( ( M - M ) + 1 ) (.g ` G ) C ) = ( 1 (.g ` G ) C ) )
27	16, 17	mulg1 13835	. . 3 |- ( C e. B -> ( 1 (.g ` G ) C ) = C )
28	14, 27	syl 14	. 2 |- ( ph -> ( 1 (.g ` G ) C ) = C )
29	20, 26, 28	3eqtrd 2269	1 |- ( ph -> ( G gsumg ( k e. { M } |-> A ) ) = C )

Syntax hints:   -> wi 4   /\ wa 104   = wceq 1398   F/wnf 1509   e. wcel 2203   F/_wnfc 2371   {csn 3688   |-> cmpt 4170   ` cfv 5351  (class class class)co 6049   0cc0 8123   1c1 8124   + caddc 8126   - cmin 8440   ZZcz 9573   ZZ>=cuz 9849   ...cfz 10338   Basecbs 13201   gsum_g cgsu 13459   Mndcmnd 13618  ._gcmg 13825

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 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2205  ax-14 2206  ax-ext 2214  ax-coll 4224  ax-sep 4227  ax-nul 4235  ax-pow 4286  ax-pr 4321  ax-un 4553  ax-setind 4658  ax-iinf 4709  ax-cnex 8214  ax-resscn 8215  ax-1cn 8216  ax-1re 8217  ax-icn 8218  ax-addcl 8219  ax-addrcl 8220  ax-mulcl 8221  ax-addcom 8223  ax-addass 8225  ax-distr 8227  ax-i2m1 8228  ax-0lt1 8229  ax-0id 8231  ax-rnegex 8232  ax-cnre 8234  ax-pre-ltirr 8235  ax-pre-ltwlin 8236  ax-pre-lttrn 8237  ax-pre-apti 8238  ax-pre-ltadd 8239

This theorem depends on definitions:  df-bi 117  df-dc 843  df-3or 1006  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1812  df-eu 2083  df-mo 2084  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-ne 2413  df-nel 2508  df-ral 2525  df-rex 2526  df-reu 2527  df-rab 2529  df-v 2814  df-sbc 3042  df-csb 3138  df-dif 3212  df-un 3214  df-in 3216  df-ss 3223  df-nul 3508  df-if 3620  df-pw 3670  df-sn 3694  df-pr 3695  df-op 3697  df-uni 3914  df-int 3949  df-iun 3992  df-br 4109  df-opab 4171  df-mpt 4172  df-tr 4208  df-id 4413  df-iord 4486  df-on 4488  df-ilim 4489  df-suc 4491  df-iom 4712  df-xp 4754  df-rel 4755  df-cnv 4756  df-co 4757  df-dm 4758  df-rn 4759  df-res 4760  df-ima 4761  df-iota 5311  df-fun 5353  df-fn 5354  df-f 5355  df-f1 5356  df-fo 5357  df-f1o 5358  df-fv 5359  df-riota 6002  df-ov 6052  df-oprab 6053  df-mpo 6054  df-1st 6333  df-2nd 6334  df-recs 6535  df-frec 6621  df-1o 6646  df-er 6766  df-en 6975  df-fin 6977  df-pnf 8306  df-mnf 8307  df-xr 8308  df-ltxr 8309  df-le 8310  df-sub 8442  df-neg 8443  df-inn 9234  df-2 9292  df-n0 9493  df-z 9574  df-uz 9850  df-fz 10339  df-seqfrec 10806  df-ndx 13204  df-slot 13205  df-base 13207  df-plusg 13292  df-0g 13460  df-igsum 13461  df-minusg 13706  df-mulg 13826

This theorem is referenced by:  gsumsplit0  14052  gsumfzfsumlemm  14722  gfsumsn  16853