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Theorem psrbasg 13976
Description: The base set of the multivariate power series structure. (Contributed by Mario Carneiro, 28-Dec-2014.) (Revised by Mario Carneiro, 2-Oct-2015.) (Proof shortened by AV, 8-Jul-2019.)
Hypotheses
Ref Expression
psrbas.s  |-  S  =  ( I mPwSer  R )
psrbas.k  |-  K  =  ( Base `  R
)
psrbas.d  |-  D  =  { f  e.  ( NN0  ^m  I )  |  ( `' f
" NN )  e. 
Fin }
psrbas.b  |-  B  =  ( Base `  S
)
psrbas.i  |-  ( ph  ->  I  e.  V )
psrbasg.r  |-  ( ph  ->  R  e.  W )
Assertion
Ref Expression
psrbasg  |-  ( ph  ->  B  =  ( K  ^m  D ) )
Distinct variable group:    f, I
Allowed substitution hints:    ph( f)    B( f)    D( f)    R( f)    S( f)    K( f)    V( f)    W( f)

Proof of Theorem psrbasg
Dummy variables  g  h  k  p  x  y are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 psrbas.s . . . 4  |-  S  =  ( I mPwSer  R )
2 psrbas.k . . . 4  |-  K  =  ( Base `  R
)
3 eqid 2189 . . . 4  |-  ( +g  `  R )  =  ( +g  `  R )
4 eqid 2189 . . . 4  |-  ( .r
`  R )  =  ( .r `  R
)
5 eqid 2189 . . . 4  |-  ( TopOpen `  R )  =  (
TopOpen `  R )
6 psrbas.d . . . 4  |-  D  =  { f  e.  ( NN0  ^m  I )  |  ( `' f
" NN )  e. 
Fin }
7 eqidd 2190 . . . 4  |-  ( ph  ->  ( K  ^m  D
)  =  ( K  ^m  D ) )
8 eqid 2189 . . . 4  |-  (  oF ( +g  `  R
)  |`  ( ( K  ^m  D )  X.  ( K  ^m  D
) ) )  =  (  oF ( +g  `  R )  |`  ( ( K  ^m  D )  X.  ( K  ^m  D ) ) )
9 eqid 2189 . . . 4  |-  ( g  e.  ( K  ^m  D ) ,  h  e.  ( K  ^m  D
)  |->  ( k  e.  D  |->  ( R  gsumg  ( x  e.  { y  e.  D  |  y  oR  <_  k }  |->  ( ( g `  x ) ( .r
`  R ) ( h `  ( k  oF  -  x
) ) ) ) ) ) )  =  ( g  e.  ( K  ^m  D ) ,  h  e.  ( K  ^m  D ) 
|->  ( k  e.  D  |->  ( R  gsumg  ( x  e.  {
y  e.  D  | 
y  oR  <_ 
k }  |->  ( ( g `  x ) ( .r `  R
) ( h `  ( k  oF  -  x ) ) ) ) ) ) )
10 eqid 2189 . . . 4  |-  ( x  e.  K ,  g  e.  ( K  ^m  D )  |->  ( ( D  X.  { x } )  oF ( .r `  R
) g ) )  =  ( x  e.  K ,  g  e.  ( K  ^m  D
)  |->  ( ( D  X.  { x }
)  oF ( .r `  R ) g ) )
11 eqidd 2190 . . . 4  |-  ( ph  ->  ( Xt_ `  ( D  X.  { ( TopOpen `  R ) } ) )  =  ( Xt_ `  ( D  X.  {
( TopOpen `  R ) } ) ) )
12 psrbas.i . . . 4  |-  ( ph  ->  I  e.  V )
13 psrbasg.r . . . 4  |-  ( ph  ->  R  e.  W )
141, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13psrval 13969 . . 3  |-  ( ph  ->  S  =  ( {
<. ( Base `  ndx ) ,  ( K  ^m  D ) >. ,  <. ( +g  `  ndx ) ,  (  oF
( +g  `  R )  |`  ( ( K  ^m  D )  X.  ( K  ^m  D ) ) ) >. ,  <. ( .r `  ndx ) ,  ( g  e.  ( K  ^m  D ) ,  h  e.  ( K  ^m  D ) 
|->  ( k  e.  D  |->  ( R  gsumg  ( x  e.  {
y  e.  D  | 
y  oR  <_ 
k }  |->  ( ( g `  x ) ( .r `  R
) ( h `  ( k  oF  -  x ) ) ) ) ) ) ) >. }  u.  { <. (Scalar `  ndx ) ,  R >. ,  <. ( .s `  ndx ) ,  ( x  e.  K ,  g  e.  ( K  ^m  D )  |->  ( ( D  X.  {
x } )  oF ( .r `  R ) g ) ) >. ,  <. (TopSet ` 
ndx ) ,  (
Xt_ `  ( D  X.  { ( TopOpen `  R
) } ) )
>. } ) )
1514fveq2d 5541 . 2  |-  ( ph  ->  ( Base `  S
)  =  ( Base `  ( { <. ( Base `  ndx ) ,  ( K  ^m  D
) >. ,  <. ( +g  `  ndx ) ,  (  oF ( +g  `  R )  |`  ( ( K  ^m  D )  X.  ( K  ^m  D ) ) ) >. ,  <. ( .r `  ndx ) ,  ( g  e.  ( K  ^m  D ) ,  h  e.  ( K  ^m  D ) 
|->  ( k  e.  D  |->  ( R  gsumg  ( x  e.  {
y  e.  D  | 
y  oR  <_ 
k }  |->  ( ( g `  x ) ( .r `  R
) ( h `  ( k  oF  -  x ) ) ) ) ) ) ) >. }  u.  { <. (Scalar `  ndx ) ,  R >. ,  <. ( .s `  ndx ) ,  ( x  e.  K ,  g  e.  ( K  ^m  D )  |->  ( ( D  X.  {
x } )  oF ( .r `  R ) g ) ) >. ,  <. (TopSet ` 
ndx ) ,  (
Xt_ `  ( D  X.  { ( TopOpen `  R
) } ) )
>. } ) ) )
16 psrbas.b . . 3  |-  B  =  ( Base `  S
)
1716a1i 9 . 2  |-  ( ph  ->  B  =  ( Base `  S ) )
18 basfn 12581 . . . . . . . 8  |-  Base  Fn  _V
1913elexd 2765 . . . . . . . 8  |-  ( ph  ->  R  e.  _V )
20 funfvex 5554 . . . . . . . . 9  |-  ( ( Fun  Base  /\  R  e. 
dom  Base )  ->  ( Base `  R )  e. 
_V )
2120funfni 5338 . . . . . . . 8  |-  ( (
Base  Fn  _V  /\  R  e.  _V )  ->  ( Base `  R )  e. 
_V )
2218, 19, 21sylancr 414 . . . . . . 7  |-  ( ph  ->  ( Base `  R
)  e.  _V )
232, 22eqeltrid 2276 . . . . . 6  |-  ( ph  ->  K  e.  _V )
24 nn0ex 9217 . . . . . . . . 9  |-  NN0  e.  _V
25 mapvalg 6688 . . . . . . . . 9  |-  ( ( NN0  e.  _V  /\  I  e.  V )  ->  ( NN0  ^m  I
)  =  { p  |  p : I --> NN0 }
)
2624, 12, 25sylancr 414 . . . . . . . 8  |-  ( ph  ->  ( NN0  ^m  I
)  =  { p  |  p : I --> NN0 }
)
2724a1i 9 . . . . . . . . 9  |-  ( ph  ->  NN0  e.  _V )
28 mapex 6684 . . . . . . . . 9  |-  ( ( I  e.  V  /\  NN0 
e.  _V )  ->  { p  |  p : I --> NN0 }  e.  _V )
2912, 27, 28syl2anc 411 . . . . . . . 8  |-  ( ph  ->  { p  |  p : I --> NN0 }  e.  _V )
3026, 29eqeltrd 2266 . . . . . . 7  |-  ( ph  ->  ( NN0  ^m  I
)  e.  _V )
316, 30rabexd 4166 . . . . . 6  |-  ( ph  ->  D  e.  _V )
32 mapvalg 6688 . . . . . 6  |-  ( ( K  e.  _V  /\  D  e.  _V )  ->  ( K  ^m  D
)  =  { p  |  p : D --> K }
)
3323, 31, 32syl2anc 411 . . . . 5  |-  ( ph  ->  ( K  ^m  D
)  =  { p  |  p : D --> K }
)
34 mapex 6684 . . . . . 6  |-  ( ( D  e.  _V  /\  K  e.  _V )  ->  { p  |  p : D --> K }  e.  _V )
3531, 23, 34syl2anc 411 . . . . 5  |-  ( ph  ->  { p  |  p : D --> K }  e.  _V )
3633, 35eqeltrd 2266 . . . 4  |-  ( ph  ->  ( K  ^m  D
)  e.  _V )
3736, 36ofmresex 6166 . . . 4  |-  ( ph  ->  (  oF ( +g  `  R )  |`  ( ( K  ^m  D )  X.  ( K  ^m  D ) ) )  e.  _V )
38 mpoexga 6241 . . . . 5  |-  ( ( ( K  ^m  D
)  e.  _V  /\  ( K  ^m  D )  e.  _V )  -> 
( g  e.  ( K  ^m  D ) ,  h  e.  ( K  ^m  D ) 
|->  ( k  e.  D  |->  ( R  gsumg  ( x  e.  {
y  e.  D  | 
y  oR  <_ 
k }  |->  ( ( g `  x ) ( .r `  R
) ( h `  ( k  oF  -  x ) ) ) ) ) ) )  e.  _V )
3936, 36, 38syl2anc 411 . . . 4  |-  ( ph  ->  ( g  e.  ( K  ^m  D ) ,  h  e.  ( K  ^m  D ) 
|->  ( k  e.  D  |->  ( R  gsumg  ( x  e.  {
y  e.  D  | 
y  oR  <_ 
k }  |->  ( ( g `  x ) ( .r `  R
) ( h `  ( k  oF  -  x ) ) ) ) ) ) )  e.  _V )
40 mpoexga 6241 . . . . 5  |-  ( ( K  e.  _V  /\  ( K  ^m  D )  e.  _V )  -> 
( x  e.  K ,  g  e.  ( K  ^m  D )  |->  ( ( D  X.  {
x } )  oF ( .r `  R ) g ) )  e.  _V )
4123, 36, 40syl2anc 411 . . . 4  |-  ( ph  ->  ( x  e.  K ,  g  e.  ( K  ^m  D )  |->  ( ( D  X.  {
x } )  oF ( .r `  R ) g ) )  e.  _V )
42 topnfn 12760 . . . . . . . 8  |-  TopOpen  Fn  _V
43 funfvex 5554 . . . . . . . . 9  |-  ( ( Fun  TopOpen  /\  R  e.  dom 
TopOpen )  ->  ( TopOpen `  R )  e.  _V )
4443funfni 5338 . . . . . . . 8  |-  ( (
TopOpen  Fn  _V  /\  R  e.  _V )  ->  ( TopOpen
`  R )  e. 
_V )
4542, 19, 44sylancr 414 . . . . . . 7  |-  ( ph  ->  ( TopOpen `  R )  e.  _V )
46 snexg 4205 . . . . . . 7  |-  ( (
TopOpen `  R )  e. 
_V  ->  { ( TopOpen `  R ) }  e.  _V )
4745, 46syl 14 . . . . . 6  |-  ( ph  ->  { ( TopOpen `  R
) }  e.  _V )
48 xpexg 4761 . . . . . 6  |-  ( ( D  e.  _V  /\  { ( TopOpen `  R ) }  e.  _V )  ->  ( D  X.  {
( TopOpen `  R ) } )  e.  _V )
4931, 47, 48syl2anc 411 . . . . 5  |-  ( ph  ->  ( D  X.  {
( TopOpen `  R ) } )  e.  _V )
50 ptex 12780 . . . . 5  |-  ( ( D  X.  { (
TopOpen `  R ) } )  e.  _V  ->  (
Xt_ `  ( D  X.  { ( TopOpen `  R
) } ) )  e.  _V )
5149, 50syl 14 . . . 4  |-  ( ph  ->  ( Xt_ `  ( D  X.  { ( TopOpen `  R ) } ) )  e.  _V )
5236, 37, 39, 13, 41, 51psrvalstrd 13971 . . 3  |-  ( ph  ->  ( { <. ( Base `  ndx ) ,  ( K  ^m  D
) >. ,  <. ( +g  `  ndx ) ,  (  oF ( +g  `  R )  |`  ( ( K  ^m  D )  X.  ( K  ^m  D ) ) ) >. ,  <. ( .r `  ndx ) ,  ( g  e.  ( K  ^m  D ) ,  h  e.  ( K  ^m  D ) 
|->  ( k  e.  D  |->  ( R  gsumg  ( x  e.  {
y  e.  D  | 
y  oR  <_ 
k }  |->  ( ( g `  x ) ( .r `  R
) ( h `  ( k  oF  -  x ) ) ) ) ) ) ) >. }  u.  { <. (Scalar `  ndx ) ,  R >. ,  <. ( .s `  ndx ) ,  ( x  e.  K ,  g  e.  ( K  ^m  D )  |->  ( ( D  X.  {
x } )  oF ( .r `  R ) g ) ) >. ,  <. (TopSet ` 
ndx ) ,  (
Xt_ `  ( D  X.  { ( TopOpen `  R
) } ) )
>. } ) Struct  <. 1 ,  9 >. )
53 basendxnn 12579 . . . . 5  |-  ( Base `  ndx )  e.  NN
54 opexg 4249 . . . . 5  |-  ( ( ( Base `  ndx )  e.  NN  /\  ( K  ^m  D )  e. 
_V )  ->  <. ( Base `  ndx ) ,  ( K  ^m  D
) >.  e.  _V )
5553, 36, 54sylancr 414 . . . 4  |-  ( ph  -> 
<. ( Base `  ndx ) ,  ( K  ^m  D ) >.  e.  _V )
56 tpid1g 3722 . . . 4  |-  ( <.
( Base `  ndx ) ,  ( K  ^m  D
) >.  e.  _V  ->  <.
( Base `  ndx ) ,  ( K  ^m  D
) >.  e.  { <. (
Base `  ndx ) ,  ( K  ^m  D
) >. ,  <. ( +g  `  ndx ) ,  (  oF ( +g  `  R )  |`  ( ( K  ^m  D )  X.  ( K  ^m  D ) ) ) >. ,  <. ( .r `  ndx ) ,  ( g  e.  ( K  ^m  D ) ,  h  e.  ( K  ^m  D ) 
|->  ( k  e.  D  |->  ( R  gsumg  ( x  e.  {
y  e.  D  | 
y  oR  <_ 
k }  |->  ( ( g `  x ) ( .r `  R
) ( h `  ( k  oF  -  x ) ) ) ) ) ) ) >. } )
57 elun1 3317 . . . 4  |-  ( <.
( Base `  ndx ) ,  ( K  ^m  D
) >.  e.  { <. (
Base `  ndx ) ,  ( K  ^m  D
) >. ,  <. ( +g  `  ndx ) ,  (  oF ( +g  `  R )  |`  ( ( K  ^m  D )  X.  ( K  ^m  D ) ) ) >. ,  <. ( .r `  ndx ) ,  ( g  e.  ( K  ^m  D ) ,  h  e.  ( K  ^m  D ) 
|->  ( k  e.  D  |->  ( R  gsumg  ( x  e.  {
y  e.  D  | 
y  oR  <_ 
k }  |->  ( ( g `  x ) ( .r `  R
) ( h `  ( k  oF  -  x ) ) ) ) ) ) ) >. }  ->  <. ( Base `  ndx ) ,  ( K  ^m  D
) >.  e.  ( {
<. ( Base `  ndx ) ,  ( K  ^m  D ) >. ,  <. ( +g  `  ndx ) ,  (  oF
( +g  `  R )  |`  ( ( K  ^m  D )  X.  ( K  ^m  D ) ) ) >. ,  <. ( .r `  ndx ) ,  ( g  e.  ( K  ^m  D ) ,  h  e.  ( K  ^m  D ) 
|->  ( k  e.  D  |->  ( R  gsumg  ( x  e.  {
y  e.  D  | 
y  oR  <_ 
k }  |->  ( ( g `  x ) ( .r `  R
) ( h `  ( k  oF  -  x ) ) ) ) ) ) ) >. }  u.  { <. (Scalar `  ndx ) ,  R >. ,  <. ( .s `  ndx ) ,  ( x  e.  K ,  g  e.  ( K  ^m  D )  |->  ( ( D  X.  {
x } )  oF ( .r `  R ) g ) ) >. ,  <. (TopSet ` 
ndx ) ,  (
Xt_ `  ( D  X.  { ( TopOpen `  R
) } ) )
>. } ) )
5855, 56, 573syl 17 . . 3  |-  ( ph  -> 
<. ( Base `  ndx ) ,  ( K  ^m  D ) >.  e.  ( { <. ( Base `  ndx ) ,  ( K  ^m  D ) >. ,  <. ( +g  `  ndx ) ,  (  oF
( +g  `  R )  |`  ( ( K  ^m  D )  X.  ( K  ^m  D ) ) ) >. ,  <. ( .r `  ndx ) ,  ( g  e.  ( K  ^m  D ) ,  h  e.  ( K  ^m  D ) 
|->  ( k  e.  D  |->  ( R  gsumg  ( x  e.  {
y  e.  D  | 
y  oR  <_ 
k }  |->  ( ( g `  x ) ( .r `  R
) ( h `  ( k  oF  -  x ) ) ) ) ) ) ) >. }  u.  { <. (Scalar `  ndx ) ,  R >. ,  <. ( .s `  ndx ) ,  ( x  e.  K ,  g  e.  ( K  ^m  D )  |->  ( ( D  X.  {
x } )  oF ( .r `  R ) g ) ) >. ,  <. (TopSet ` 
ndx ) ,  (
Xt_ `  ( D  X.  { ( TopOpen `  R
) } ) )
>. } ) )
5952, 36, 58opelstrbas 12638 . 2  |-  ( ph  ->  ( K  ^m  D
)  =  ( Base `  ( { <. ( Base `  ndx ) ,  ( K  ^m  D
) >. ,  <. ( +g  `  ndx ) ,  (  oF ( +g  `  R )  |`  ( ( K  ^m  D )  X.  ( K  ^m  D ) ) ) >. ,  <. ( .r `  ndx ) ,  ( g  e.  ( K  ^m  D ) ,  h  e.  ( K  ^m  D ) 
|->  ( k  e.  D  |->  ( R  gsumg  ( x  e.  {
y  e.  D  | 
y  oR  <_ 
k }  |->  ( ( g `  x ) ( .r `  R
) ( h `  ( k  oF  -  x ) ) ) ) ) ) ) >. }  u.  { <. (Scalar `  ndx ) ,  R >. ,  <. ( .s `  ndx ) ,  ( x  e.  K ,  g  e.  ( K  ^m  D )  |->  ( ( D  X.  {
x } )  oF ( .r `  R ) g ) ) >. ,  <. (TopSet ` 
ndx ) ,  (
Xt_ `  ( D  X.  { ( TopOpen `  R
) } ) )
>. } ) ) )
6015, 17, 593eqtr4d 2232 1  |-  ( ph  ->  B  =  ( K  ^m  D ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    = wceq 1364    e. wcel 2160   {cab 2175   {crab 2472   _Vcvv 2752    u. cun 3142   {csn 3610   {ctp 3612   <.cop 3613   class class class wbr 4021    |-> cmpt 4082    X. cxp 4645   `'ccnv 4646    |` cres 4649   "cima 4650    Fn wfn 5233   -->wf 5234   ` cfv 5238  (class class class)co 5900    e. cmpo 5902    oFcof 6108    oRcofr 6109    ^m cmap 6678   Fincfn 6770   1c1 7847    <_ cle 8028    - cmin 8163   NNcn 8954   9c9 9012   NN0cn0 9211   ndxcnx 12520   Basecbs 12523   +g cplusg 12600   .rcmulr 12601  Scalarcsca 12603   .scvsca 12604  TopSetcts 12606   TopOpenctopn 12756   Xt_cpt 12771    gsumg cgsu 12773   mPwSer cmps 13966
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 615  ax-in2 616  ax-io 710  ax-5 1458  ax-7 1459  ax-gen 1460  ax-ie1 1504  ax-ie2 1505  ax-8 1515  ax-10 1516  ax-11 1517  ax-i12 1518  ax-bndl 1520  ax-4 1521  ax-17 1537  ax-i9 1541  ax-ial 1545  ax-i5r 1546  ax-13 2162  ax-14 2163  ax-ext 2171  ax-coll 4136  ax-sep 4139  ax-pow 4195  ax-pr 4230  ax-un 4454  ax-setind 4557  ax-cnex 7937  ax-resscn 7938  ax-1cn 7939  ax-1re 7940  ax-icn 7941  ax-addcl 7942  ax-addrcl 7943  ax-mulcl 7944  ax-addcom 7946  ax-addass 7948  ax-distr 7950  ax-i2m1 7951  ax-0lt1 7952  ax-0id 7954  ax-rnegex 7955  ax-cnre 7957  ax-pre-ltirr 7958  ax-pre-ltwlin 7959  ax-pre-lttrn 7960  ax-pre-apti 7961  ax-pre-ltadd 7962
This theorem depends on definitions:  df-bi 117  df-3or 981  df-3an 982  df-tru 1367  df-fal 1370  df-nf 1472  df-sb 1774  df-eu 2041  df-mo 2042  df-clab 2176  df-cleq 2182  df-clel 2185  df-nfc 2321  df-ne 2361  df-nel 2456  df-ral 2473  df-rex 2474  df-reu 2475  df-rab 2477  df-v 2754  df-sbc 2978  df-csb 3073  df-dif 3146  df-un 3148  df-in 3150  df-ss 3157  df-nul 3438  df-pw 3595  df-sn 3616  df-pr 3617  df-tp 3618  df-op 3619  df-uni 3828  df-int 3863  df-iun 3906  df-br 4022  df-opab 4083  df-mpt 4084  df-id 4314  df-xp 4653  df-rel 4654  df-cnv 4655  df-co 4656  df-dm 4657  df-rn 4658  df-res 4659  df-ima 4660  df-iota 5199  df-fun 5240  df-fn 5241  df-f 5242  df-f1 5243  df-fo 5244  df-f1o 5245  df-fv 5246  df-riota 5855  df-ov 5903  df-oprab 5904  df-mpo 5905  df-of 6110  df-1st 6169  df-2nd 6170  df-map 6680  df-ixp 6729  df-pnf 8029  df-mnf 8030  df-xr 8031  df-ltxr 8032  df-le 8033  df-sub 8165  df-neg 8166  df-inn 8955  df-2 9013  df-3 9014  df-4 9015  df-5 9016  df-6 9017  df-7 9018  df-8 9019  df-9 9020  df-n0 9212  df-z 9289  df-uz 9564  df-fz 10045  df-struct 12525  df-ndx 12526  df-slot 12527  df-base 12529  df-plusg 12613  df-mulr 12614  df-sca 12616  df-vsca 12617  df-tset 12619  df-rest 12757  df-topn 12758  df-topgen 12776  df-pt 12777  df-psr 13967
This theorem is referenced by:  psrelbas  13977  psrplusgg  13979  psraddcl  13981
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