Theorem gsumfzsnfd 14083

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 3709	. . . . . 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 4201	. . . 4 |- ( ph -> ( k e. { M } |-> A ) = ( k e. { M } |-> C ) )
6	5	oveq2d 6068	. . 3 |- ( ph -> ( G gsumg ( k e. { M } |-> A ) ) = ( G gsumg ( k e. { M } |-> C ) ) )
7		gsumfzsnd.m	. . . . . 6 |- ( ph -> M e. ZZ )
8		fzsn 10406	. . . . . 6 |- ( M e. ZZ -> ( M ... M ) = { M } )
9	7, 8	syl 14	. . . . 5 |- ( ph -> ( M ... M ) = { M } )
10	9	mpteq1d 4197	. . . 4 |- ( ph -> ( k e. ( M ... M ) |-> C ) = ( k e. { M } |-> C ) )
11	10	oveq2d 6068	. . 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 9875	. . . 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 2234	. . . . 5 |- (.g ` G ) = (.g ` G )
18	15, 16, 17	gsumfzconstf 14080	. . . 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 2273	. 2 |- ( ph -> ( G gsumg ( k e. { M } |-> A ) ) = ( ( ( M - M ) + 1 ) (.g ` G ) C ) )
21	7	zcnd 9707	. . . . . 6 |- ( ph -> M e. CC )
22	21	subidd 8577	. . . . 5 |- ( ph -> ( M - M ) = 0 )
23	22	oveq1d 6067	. . . 4 |- ( ph -> ( ( M - M ) + 1 ) = ( 0 + 1 ) )
24		0p1e1 9356	. . . 4 |- ( 0 + 1 ) = 1
25	23, 24	eqtrdi 2283	. . 3 |- ( ph -> ( ( M - M ) + 1 ) = 1 )
26	25	oveq1d 6067	. 2 |- ( ph -> ( ( ( M - M ) + 1 ) (.g ` G ) C ) = ( 1 (.g ` G ) C ) )
27	16, 17	mulg1 13867	. . 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 2271	1 |- ( ph -> ( G gsumg ( k e. { M } |-> A ) ) = C )

Syntax hints:   -> wi 4   /\ wa 104   = wceq 1398   F/wnf 1509   e. wcel 2205   F/_wnfc 2373   {csn 3691   |-> cmpt 4173   ` cfv 5354  (class class class)co 6052   0cc0 8132   1c1 8133   + caddc 8135   - cmin 8449   ZZcz 9582   ZZ>=cuz 9859   ...cfz 10348   Basecbs 13233   gsum_g cgsu 13491   Mndcmnd 13650  ._gcmg 13857

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 2207  ax-14 2208  ax-ext 2216  ax-coll 4227  ax-sep 4230  ax-nul 4238  ax-pow 4289  ax-pr 4324  ax-un 4556  ax-setind 4661  ax-iinf 4712  ax-cnex 8223  ax-resscn 8224  ax-1cn 8225  ax-1re 8226  ax-icn 8227  ax-addcl 8228  ax-addrcl 8229  ax-mulcl 8230  ax-addcom 8232  ax-addass 8234  ax-distr 8236  ax-i2m1 8237  ax-0lt1 8238  ax-0id 8240  ax-rnegex 8241  ax-cnre 8243  ax-pre-ltirr 8244  ax-pre-ltwlin 8245  ax-pre-lttrn 8246  ax-pre-apti 8247  ax-pre-ltadd 8248

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 2085  df-mo 2086  df-clab 2221  df-cleq 2227  df-clel 2230  df-nfc 2375  df-ne 2415  df-nel 2510  df-ral 2527  df-rex 2528  df-reu 2529  df-rab 2531  df-v 2817  df-sbc 3045  df-csb 3141  df-dif 3215  df-un 3217  df-in 3219  df-ss 3226  df-nul 3511  df-if 3623  df-pw 3673  df-sn 3697  df-pr 3698  df-op 3700  df-uni 3917  df-int 3952  df-iun 3995  df-br 4112  df-opab 4174  df-mpt 4175  df-tr 4211  df-id 4416  df-iord 4489  df-on 4491  df-ilim 4492  df-suc 4494  df-iom 4715  df-xp 4757  df-rel 4758  df-cnv 4759  df-co 4760  df-dm 4761  df-rn 4762  df-res 4763  df-ima 4764  df-iota 5314  df-fun 5356  df-fn 5357  df-f 5358  df-f1 5359  df-fo 5360  df-f1o 5361  df-fv 5362  df-riota 6005  df-ov 6055  df-oprab 6056  df-mpo 6057  df-1st 6336  df-2nd 6337  df-recs 6538  df-frec 6624  df-1o 6649  df-er 6769  df-en 6978  df-fin 6980  df-pnf 8315  df-mnf 8316  df-xr 8317  df-ltxr 8318  df-le 8319  df-sub 8451  df-neg 8452  df-inn 9243  df-2 9301  df-n0 9502  df-z 9583  df-uz 9860  df-fz 10349  df-seqfrec 10817  df-ndx 13236  df-slot 13237  df-base 13239  df-plusg 13324  df-0g 13492  df-igsum 13493  df-minusg 13738  df-mulg 13858

This theorem is referenced by:  gsumsplit0  14084  gsumfzfsumlemm  14784  gfsumsn  16916