MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  mulgnnass Unicode version

Theorem mulgnnass 14595
Description: Product of group multiples, for positive multiples. TODO: This can be generalized to a semigroup if/when we introduce them. (Contributed by Mario Carneiro, 13-Dec-2014.)
Hypotheses
Ref Expression
mulgass.b  |-  B  =  ( Base `  G
)
mulgass.t  |-  .x.  =  (.g
`  G )
Assertion
Ref Expression
mulgnnass  |-  ( ( G  e.  Mnd  /\  ( M  e.  NN  /\  N  e.  NN  /\  X  e.  B )
)  ->  ( ( M  x.  N )  .x.  X )  =  ( M  .x.  ( N 
.x.  X ) ) )

Proof of Theorem mulgnnass
Dummy variables  m  n are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 oveq1 5865 . . . . . . . 8  |-  ( n  =  1  ->  (
n  x.  N )  =  ( 1  x.  N ) )
21oveq1d 5873 . . . . . . 7  |-  ( n  =  1  ->  (
( n  x.  N
)  .x.  X )  =  ( ( 1  x.  N )  .x.  X ) )
3 oveq1 5865 . . . . . . 7  |-  ( n  =  1  ->  (
n  .x.  ( N  .x.  X ) )  =  ( 1  .x.  ( N  .x.  X ) ) )
42, 3eqeq12d 2297 . . . . . 6  |-  ( n  =  1  ->  (
( ( n  x.  N )  .x.  X
)  =  ( n 
.x.  ( N  .x.  X ) )  <->  ( (
1  x.  N ) 
.x.  X )  =  ( 1  .x.  ( N  .x.  X ) ) ) )
54imbi2d 307 . . . . 5  |-  ( n  =  1  ->  (
( ( N  e.  NN  /\  X  e.  B  /\  G  e. 
Mnd )  ->  (
( n  x.  N
)  .x.  X )  =  ( n  .x.  ( N  .x.  X ) ) )  <->  ( ( N  e.  NN  /\  X  e.  B  /\  G  e. 
Mnd )  ->  (
( 1  x.  N
)  .x.  X )  =  ( 1  .x.  ( N  .x.  X
) ) ) ) )
6 oveq1 5865 . . . . . . . 8  |-  ( n  =  m  ->  (
n  x.  N )  =  ( m  x.  N ) )
76oveq1d 5873 . . . . . . 7  |-  ( n  =  m  ->  (
( n  x.  N
)  .x.  X )  =  ( ( m  x.  N )  .x.  X ) )
8 oveq1 5865 . . . . . . 7  |-  ( n  =  m  ->  (
n  .x.  ( N  .x.  X ) )  =  ( m  .x.  ( N  .x.  X ) ) )
97, 8eqeq12d 2297 . . . . . 6  |-  ( n  =  m  ->  (
( ( n  x.  N )  .x.  X
)  =  ( n 
.x.  ( N  .x.  X ) )  <->  ( (
m  x.  N ) 
.x.  X )  =  ( m  .x.  ( N  .x.  X ) ) ) )
109imbi2d 307 . . . . 5  |-  ( n  =  m  ->  (
( ( N  e.  NN  /\  X  e.  B  /\  G  e. 
Mnd )  ->  (
( n  x.  N
)  .x.  X )  =  ( n  .x.  ( N  .x.  X ) ) )  <->  ( ( N  e.  NN  /\  X  e.  B  /\  G  e. 
Mnd )  ->  (
( m  x.  N
)  .x.  X )  =  ( m  .x.  ( N  .x.  X ) ) ) ) )
11 oveq1 5865 . . . . . . . 8  |-  ( n  =  ( m  + 
1 )  ->  (
n  x.  N )  =  ( ( m  +  1 )  x.  N ) )
1211oveq1d 5873 . . . . . . 7  |-  ( n  =  ( m  + 
1 )  ->  (
( n  x.  N
)  .x.  X )  =  ( ( ( m  +  1 )  x.  N )  .x.  X ) )
13 oveq1 5865 . . . . . . 7  |-  ( n  =  ( m  + 
1 )  ->  (
n  .x.  ( N  .x.  X ) )  =  ( ( m  + 
1 )  .x.  ( N  .x.  X ) ) )
1412, 13eqeq12d 2297 . . . . . 6  |-  ( n  =  ( m  + 
1 )  ->  (
( ( n  x.  N )  .x.  X
)  =  ( n 
.x.  ( N  .x.  X ) )  <->  ( (
( m  +  1 )  x.  N ) 
.x.  X )  =  ( ( m  + 
1 )  .x.  ( N  .x.  X ) ) ) )
1514imbi2d 307 . . . . 5  |-  ( n  =  ( m  + 
1 )  ->  (
( ( N  e.  NN  /\  X  e.  B  /\  G  e. 
Mnd )  ->  (
( n  x.  N
)  .x.  X )  =  ( n  .x.  ( N  .x.  X ) ) )  <->  ( ( N  e.  NN  /\  X  e.  B  /\  G  e. 
Mnd )  ->  (
( ( m  + 
1 )  x.  N
)  .x.  X )  =  ( ( m  +  1 )  .x.  ( N  .x.  X ) ) ) ) )
16 oveq1 5865 . . . . . . . 8  |-  ( n  =  M  ->  (
n  x.  N )  =  ( M  x.  N ) )
1716oveq1d 5873 . . . . . . 7  |-  ( n  =  M  ->  (
( n  x.  N
)  .x.  X )  =  ( ( M  x.  N )  .x.  X ) )
18 oveq1 5865 . . . . . . 7  |-  ( n  =  M  ->  (
n  .x.  ( N  .x.  X ) )  =  ( M  .x.  ( N  .x.  X ) ) )
1917, 18eqeq12d 2297 . . . . . 6  |-  ( n  =  M  ->  (
( ( n  x.  N )  .x.  X
)  =  ( n 
.x.  ( N  .x.  X ) )  <->  ( ( M  x.  N )  .x.  X )  =  ( M  .x.  ( N 
.x.  X ) ) ) )
2019imbi2d 307 . . . . 5  |-  ( n  =  M  ->  (
( ( N  e.  NN  /\  X  e.  B  /\  G  e. 
Mnd )  ->  (
( n  x.  N
)  .x.  X )  =  ( n  .x.  ( N  .x.  X ) ) )  <->  ( ( N  e.  NN  /\  X  e.  B  /\  G  e. 
Mnd )  ->  (
( M  x.  N
)  .x.  X )  =  ( M  .x.  ( N  .x.  X ) ) ) ) )
21 nncn 9754 . . . . . . . . 9  |-  ( N  e.  NN  ->  N  e.  CC )
2221mulid2d 8853 . . . . . . . 8  |-  ( N  e.  NN  ->  (
1  x.  N )  =  N )
23223ad2ant1 976 . . . . . . 7  |-  ( ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )  ->  ( 1  x.  N
)  =  N )
2423oveq1d 5873 . . . . . 6  |-  ( ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )  ->  ( ( 1  x.  N )  .x.  X
)  =  ( N 
.x.  X ) )
25 mulgass.b . . . . . . . . 9  |-  B  =  ( Base `  G
)
26 mulgass.t . . . . . . . . 9  |-  .x.  =  (.g
`  G )
2725, 26mulgnncl 14582 . . . . . . . 8  |-  ( ( G  e.  Mnd  /\  N  e.  NN  /\  X  e.  B )  ->  ( N  .x.  X )  e.  B )
28273coml 1158 . . . . . . 7  |-  ( ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )  ->  ( N  .x.  X
)  e.  B )
2925, 26mulg1 14574 . . . . . . 7  |-  ( ( N  .x.  X )  e.  B  ->  (
1  .x.  ( N  .x.  X ) )  =  ( N  .x.  X
) )
3028, 29syl 15 . . . . . 6  |-  ( ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )  ->  ( 1  .x.  ( N  .x.  X ) )  =  ( N  .x.  X ) )
3124, 30eqtr4d 2318 . . . . 5  |-  ( ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )  ->  ( ( 1  x.  N )  .x.  X
)  =  ( 1 
.x.  ( N  .x.  X ) ) )
32 oveq1 5865 . . . . . . . 8  |-  ( ( ( m  x.  N
)  .x.  X )  =  ( m  .x.  ( N  .x.  X ) )  ->  ( (
( m  x.  N
)  .x.  X )
( +g  `  G ) ( N  .x.  X
) )  =  ( ( m  .x.  ( N  .x.  X ) ) ( +g  `  G
) ( N  .x.  X ) ) )
33 nncn 9754 . . . . . . . . . . . . . 14  |-  ( m  e.  NN  ->  m  e.  CC )
3433adantr 451 . . . . . . . . . . . . 13  |-  ( ( m  e.  NN  /\  ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )
)  ->  m  e.  CC )
35 ax-1cn 8795 . . . . . . . . . . . . . 14  |-  1  e.  CC
3635a1i 10 . . . . . . . . . . . . 13  |-  ( ( m  e.  NN  /\  ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )
)  ->  1  e.  CC )
37 simpr1 961 . . . . . . . . . . . . . 14  |-  ( ( m  e.  NN  /\  ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )
)  ->  N  e.  NN )
3837nncnd 9762 . . . . . . . . . . . . 13  |-  ( ( m  e.  NN  /\  ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )
)  ->  N  e.  CC )
3934, 36, 38adddird 8860 . . . . . . . . . . . 12  |-  ( ( m  e.  NN  /\  ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )
)  ->  ( (
m  +  1 )  x.  N )  =  ( ( m  x.  N )  +  ( 1  x.  N ) ) )
4023adantl 452 . . . . . . . . . . . . 13  |-  ( ( m  e.  NN  /\  ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )
)  ->  ( 1  x.  N )  =  N )
4140oveq2d 5874 . . . . . . . . . . . 12  |-  ( ( m  e.  NN  /\  ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )
)  ->  ( (
m  x.  N )  +  ( 1  x.  N ) )  =  ( ( m  x.  N )  +  N
) )
4239, 41eqtrd 2315 . . . . . . . . . . 11  |-  ( ( m  e.  NN  /\  ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )
)  ->  ( (
m  +  1 )  x.  N )  =  ( ( m  x.  N )  +  N
) )
4342oveq1d 5873 . . . . . . . . . 10  |-  ( ( m  e.  NN  /\  ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )
)  ->  ( (
( m  +  1 )  x.  N ) 
.x.  X )  =  ( ( ( m  x.  N )  +  N )  .x.  X
) )
44 simpr3 963 . . . . . . . . . . 11  |-  ( ( m  e.  NN  /\  ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )
)  ->  G  e.  Mnd )
45 nnmulcl 9769 . . . . . . . . . . . 12  |-  ( ( m  e.  NN  /\  N  e.  NN )  ->  ( m  x.  N
)  e.  NN )
46453ad2antr1 1120 . . . . . . . . . . 11  |-  ( ( m  e.  NN  /\  ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )
)  ->  ( m  x.  N )  e.  NN )
47 simpr2 962 . . . . . . . . . . 11  |-  ( ( m  e.  NN  /\  ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )
)  ->  X  e.  B )
48 eqid 2283 . . . . . . . . . . . 12  |-  ( +g  `  G )  =  ( +g  `  G )
4925, 26, 48mulgnndir 14589 . . . . . . . . . . 11  |-  ( ( G  e.  Mnd  /\  ( ( m  x.  N )  e.  NN  /\  N  e.  NN  /\  X  e.  B )
)  ->  ( (
( m  x.  N
)  +  N ) 
.x.  X )  =  ( ( ( m  x.  N )  .x.  X ) ( +g  `  G ) ( N 
.x.  X ) ) )
5044, 46, 37, 47, 49syl13anc 1184 . . . . . . . . . 10  |-  ( ( m  e.  NN  /\  ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )
)  ->  ( (
( m  x.  N
)  +  N ) 
.x.  X )  =  ( ( ( m  x.  N )  .x.  X ) ( +g  `  G ) ( N 
.x.  X ) ) )
5143, 50eqtrd 2315 . . . . . . . . 9  |-  ( ( m  e.  NN  /\  ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )
)  ->  ( (
( m  +  1 )  x.  N ) 
.x.  X )  =  ( ( ( m  x.  N )  .x.  X ) ( +g  `  G ) ( N 
.x.  X ) ) )
5225, 26, 48mulgnnp1 14575 . . . . . . . . . 10  |-  ( ( m  e.  NN  /\  ( N  .x.  X )  e.  B )  -> 
( ( m  + 
1 )  .x.  ( N  .x.  X ) )  =  ( ( m 
.x.  ( N  .x.  X ) ) ( +g  `  G ) ( N  .x.  X
) ) )
5328, 52sylan2 460 . . . . . . . . 9  |-  ( ( m  e.  NN  /\  ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )
)  ->  ( (
m  +  1 ) 
.x.  ( N  .x.  X ) )  =  ( ( m  .x.  ( N  .x.  X ) ) ( +g  `  G
) ( N  .x.  X ) ) )
5451, 53eqeq12d 2297 . . . . . . . 8  |-  ( ( m  e.  NN  /\  ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )
)  ->  ( (
( ( m  + 
1 )  x.  N
)  .x.  X )  =  ( ( m  +  1 )  .x.  ( N  .x.  X ) )  <->  ( ( ( m  x.  N ) 
.x.  X ) ( +g  `  G ) ( N  .x.  X
) )  =  ( ( m  .x.  ( N  .x.  X ) ) ( +g  `  G
) ( N  .x.  X ) ) ) )
5532, 54syl5ibr 212 . . . . . . 7  |-  ( ( m  e.  NN  /\  ( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )
)  ->  ( (
( m  x.  N
)  .x.  X )  =  ( m  .x.  ( N  .x.  X ) )  ->  ( (
( m  +  1 )  x.  N ) 
.x.  X )  =  ( ( m  + 
1 )  .x.  ( N  .x.  X ) ) ) )
5655ex 423 . . . . . 6  |-  ( m  e.  NN  ->  (
( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )  ->  ( ( ( m  x.  N )  .x.  X )  =  ( m  .x.  ( N 
.x.  X ) )  ->  ( ( ( m  +  1 )  x.  N )  .x.  X )  =  ( ( m  +  1 )  .x.  ( N 
.x.  X ) ) ) ) )
5756a2d 23 . . . . 5  |-  ( m  e.  NN  ->  (
( ( N  e.  NN  /\  X  e.  B  /\  G  e. 
Mnd )  ->  (
( m  x.  N
)  .x.  X )  =  ( m  .x.  ( N  .x.  X ) ) )  ->  (
( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )  ->  ( ( ( m  +  1 )  x.  N )  .x.  X
)  =  ( ( m  +  1 ) 
.x.  ( N  .x.  X ) ) ) ) )
585, 10, 15, 20, 31, 57nnind 9764 . . . 4  |-  ( M  e.  NN  ->  (
( N  e.  NN  /\  X  e.  B  /\  G  e.  Mnd )  ->  ( ( M  x.  N )  .x.  X
)  =  ( M 
.x.  ( N  .x.  X ) ) ) )
59583expd 1168 . . 3  |-  ( M  e.  NN  ->  ( N  e.  NN  ->  ( X  e.  B  -> 
( G  e.  Mnd  ->  ( ( M  x.  N )  .x.  X
)  =  ( M 
.x.  ( N  .x.  X ) ) ) ) ) )
6059com4r 80 . 2  |-  ( G  e.  Mnd  ->  ( M  e.  NN  ->  ( N  e.  NN  ->  ( X  e.  B  -> 
( ( M  x.  N )  .x.  X
)  =  ( M 
.x.  ( N  .x.  X ) ) ) ) ) )
61603imp2 1166 1  |-  ( ( G  e.  Mnd  /\  ( M  e.  NN  /\  N  e.  NN  /\  X  e.  B )
)  ->  ( ( M  x.  N )  .x.  X )  =  ( M  .x.  ( N 
.x.  X ) ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 358    /\ w3a 934    = wceq 1623    e. wcel 1684   ` cfv 5255  (class class class)co 5858   CCcc 8735   1c1 8738    + caddc 8740    x. cmul 8742   NNcn 9746   Basecbs 13148   +g cplusg 13208   Mndcmnd 14361  .gcmg 14366
This theorem is referenced by:  mulgnn0ass  14596
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-3 7  ax-mp 8  ax-gen 1533  ax-5 1544  ax-17 1603  ax-9 1635  ax-8 1643  ax-13 1686  ax-14 1688  ax-6 1703  ax-7 1708  ax-11 1715  ax-12 1866  ax-ext 2264  ax-rep 4131  ax-sep 4141  ax-nul 4149  ax-pow 4188  ax-pr 4214  ax-un 4512  ax-inf2 7342  ax-cnex 8793  ax-resscn 8794  ax-1cn 8795  ax-icn 8796  ax-addcl 8797  ax-addrcl 8798  ax-mulcl 8799  ax-mulrcl 8800  ax-mulcom 8801  ax-addass 8802  ax-mulass 8803  ax-distr 8804  ax-i2m1 8805  ax-1ne0 8806  ax-1rid 8807  ax-rnegex 8808  ax-rrecex 8809  ax-cnre 8810  ax-pre-lttri 8811  ax-pre-lttrn 8812  ax-pre-ltadd 8813  ax-pre-mulgt0 8814
This theorem depends on definitions:  df-bi 177  df-or 359  df-an 360  df-3or 935  df-3an 936  df-tru 1310  df-ex 1529  df-nf 1532  df-sb 1630  df-eu 2147  df-mo 2148  df-clab 2270  df-cleq 2276  df-clel 2279  df-nfc 2408  df-ne 2448  df-nel 2449  df-ral 2548  df-rex 2549  df-reu 2550  df-rab 2552  df-v 2790  df-sbc 2992  df-csb 3082  df-dif 3155  df-un 3157  df-in 3159  df-ss 3166  df-pss 3168  df-nul 3456  df-if 3566  df-pw 3627  df-sn 3646  df-pr 3647  df-tp 3648  df-op 3649  df-uni 3828  df-iun 3907  df-br 4024  df-opab 4078  df-mpt 4079  df-tr 4114  df-eprel 4305  df-id 4309  df-po 4314  df-so 4315  df-fr 4352  df-we 4354  df-ord 4395  df-on 4396  df-lim 4397  df-suc 4398  df-om 4657  df-xp 4695  df-rel 4696  df-cnv 4697  df-co 4698  df-dm 4699  df-rn 4700  df-res 4701  df-ima 4702  df-iota 5219  df-fun 5257  df-fn 5258  df-f 5259  df-f1 5260  df-fo 5261  df-f1o 5262  df-fv 5263  df-ov 5861  df-oprab 5862  df-mpt2 5863  df-1st 6122  df-2nd 6123  df-riota 6304  df-recs 6388  df-rdg 6423  df-er 6660  df-en 6864  df-dom 6865  df-sdom 6866  df-pnf 8869  df-mnf 8870  df-xr 8871  df-ltxr 8872  df-le 8873  df-sub 9039  df-neg 9040  df-nn 9747  df-n0 9966  df-z 10025  df-uz 10231  df-fz 10783  df-seq 11047  df-mnd 14367  df-mulg 14492
  Copyright terms: Public domain W3C validator