Theorem gsumfzsnfd 13955

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 3688	. . . . . 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 4179	. . . 4 |- ( ph -> ( k e. { M } |-> A ) = ( k e. { M } |-> C ) )
6	5	oveq2d 6039	. . 3 |- ( ph -> ( G gsumg ( k e. { M } |-> A ) ) = ( G gsumg ( k e. { M } |-> C ) ) )
7		gsumfzsnd.m	. . . . . 6 |- ( ph -> M e. ZZ )
8		fzsn 10306	. . . . . 6 |- ( M e. ZZ -> ( M ... M ) = { M } )
9	7, 8	syl 14	. . . . 5 |- ( ph -> ( M ... M ) = { M } )
10	9	mpteq1d 4175	. . . 4 |- ( ph -> ( k e. ( M ... M ) |-> C ) = ( k e. { M } |-> C ) )
11	10	oveq2d 6039	. . 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 9776	. . . 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 2230	. . . . 5 |- (.g ` G ) = (.g ` G )
18	15, 16, 17	gsumfzconstf 13952	. . . 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 1273	. . 3 |- ( ph -> ( G gsumg ( k e. ( M ... M ) |-> C ) ) = ( ( ( M - M ) + 1 ) (.g ` G ) C ) )
20	6, 11, 19	3eqtr2d 2269	. 2 |- ( ph -> ( G gsumg ( k e. { M } |-> A ) ) = ( ( ( M - M ) + 1 ) (.g ` G ) C ) )
21	7	zcnd 9608	. . . . . 6 |- ( ph -> M e. CC )
22	21	subidd 8483	. . . . 5 |- ( ph -> ( M - M ) = 0 )
23	22	oveq1d 6038	. . . 4 |- ( ph -> ( ( M - M ) + 1 ) = ( 0 + 1 ) )
24		0p1e1 9262	. . . 4 |- ( 0 + 1 ) = 1
25	23, 24	eqtrdi 2279	. . 3 |- ( ph -> ( ( M - M ) + 1 ) = 1 )
26	25	oveq1d 6038	. 2 |- ( ph -> ( ( ( M - M ) + 1 ) (.g ` G ) C ) = ( 1 (.g ` G ) C ) )
27	16, 17	mulg1 13739	. . 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 2267	1 |- ( ph -> ( G gsumg ( k e. { M } |-> A ) ) = C )

Syntax hints:   -> wi 4   /\ wa 104   = wceq 1397   F/wnf 1508   e. wcel 2201   F/_wnfc 2360   {csn 3670   |-> cmpt 4151   ` cfv 5328  (class class class)co 6023   0cc0 8037   1c1 8038   + caddc 8040   - cmin 8355   ZZcz 9484   ZZ>=cuz 9760   ...cfz 10248   Basecbs 13105   gsum_g cgsu 13363   Mndcmnd 13522  ._gcmg 13729

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 2203  ax-14 2204  ax-ext 2212  ax-coll 4205  ax-sep 4208  ax-nul 4216  ax-pow 4266  ax-pr 4301  ax-un 4532  ax-setind 4637  ax-iinf 4688  ax-cnex 8128  ax-resscn 8129  ax-1cn 8130  ax-1re 8131  ax-icn 8132  ax-addcl 8133  ax-addrcl 8134  ax-mulcl 8135  ax-addcom 8137  ax-addass 8139  ax-distr 8141  ax-i2m1 8142  ax-0lt1 8143  ax-0id 8145  ax-rnegex 8146  ax-cnre 8148  ax-pre-ltirr 8149  ax-pre-ltwlin 8150  ax-pre-lttrn 8151  ax-pre-apti 8152  ax-pre-ltadd 8153

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 1810  df-eu 2081  df-mo 2082  df-clab 2217  df-cleq 2223  df-clel 2226  df-nfc 2362  df-ne 2402  df-nel 2497  df-ral 2514  df-rex 2515  df-reu 2516  df-rab 2518  df-v 2803  df-sbc 3031  df-csb 3127  df-dif 3201  df-un 3203  df-in 3205  df-ss 3212  df-nul 3494  df-if 3605  df-pw 3655  df-sn 3676  df-pr 3677  df-op 3679  df-uni 3895  df-int 3930  df-iun 3973  df-br 4090  df-opab 4152  df-mpt 4153  df-tr 4189  df-id 4392  df-iord 4465  df-on 4467  df-ilim 4468  df-suc 4470  df-iom 4691  df-xp 4733  df-rel 4734  df-cnv 4735  df-co 4736  df-dm 4737  df-rn 4738  df-res 4739  df-ima 4740  df-iota 5288  df-fun 5330  df-fn 5331  df-f 5332  df-f1 5333  df-fo 5334  df-f1o 5335  df-fv 5336  df-riota 5976  df-ov 6026  df-oprab 6027  df-mpo 6028  df-1st 6308  df-2nd 6309  df-recs 6476  df-frec 6562  df-1o 6587  df-er 6707  df-en 6915  df-fin 6917  df-pnf 8221  df-mnf 8222  df-xr 8223  df-ltxr 8224  df-le 8225  df-sub 8357  df-neg 8358  df-inn 9149  df-2 9207  df-n0 9408  df-z 9485  df-uz 9761  df-fz 10249  df-seqfrec 10716  df-ndx 13108  df-slot 13109  df-base 13111  df-plusg 13196  df-0g 13364  df-igsum 13365  df-minusg 13610  df-mulg 13730

This theorem is referenced by:  gsumsplit0  13956  gsumfzfsumlemm  14625  gfsumsn  16753