Theorem psrbasg 14955

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.

Step	Hyp	Ref	Expression
1		psrbas.s	. . . 4 |- S = ( I mPwSer R )
2		psrbas.k	. . . 4 |- K = ( Base ` R )
3		eqid 2234	. . . 4 |- ( +g ` R ) = ( +g ` R )
4		eqid 2234	. . . 4 |- ( .r ` R ) = ( .r ` R )
5		eqid 2234	. . . 4 |- ( TopOpen ` R ) = ( TopOpen ` R )
6		psrbas.d	. . . 4 |- D = { f e. ( NN0 ^m I ) | ( `' f " NN ) e. Fin }
7		eqidd 2235	. . . 4 |- ( ph -> ( K ^m D ) = ( K ^m D ) )
8		eqid 2234	. . . 4 |- ( oF ( +g ` R ) |` ( ( K ^m D ) X. ( K ^m D ) ) ) = ( oF ( +g ` R ) |` ( ( K ^m D ) X. ( K ^m D ) ) )
9		eqid 2234	. . . 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 2234	. . . 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 2235	. . . 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 )
14	1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13	psrval 14940	. . 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 ) } ) ) >. } ) )
15	14	fveq2d 5679	. 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 )
17	16	a1i 9	. 2 |- ( ph -> B = ( Base ` S ) )
18		basfn 13355	. . . . . . . 8 |- Base Fn _V
19	13	elexd 2829	. . . . . . . 8 |- ( ph -> R e. _V )
20		funfvex 5692	. . . . . . . . 9 |- ( ( Fun Base /\ R e. dom Base ) -> ( Base ` R ) e. _V )
21	20	funfni 5463	. . . . . . . 8 |- ( ( Base Fn _V /\ R e. _V ) -> ( Base ` R ) e. _V )
22	18, 19, 21	sylancr 414	. . . . . . 7 |- ( ph -> ( Base ` R ) e. _V )
23	2, 22	eqeltrid 2321	. . . . . 6 |- ( ph -> K e. _V )
24		nn0ex 9519	. . . . . . . . 9 |- NN0 e. _V
25		mapvalg 6905	. . . . . . . . 9 |- ( ( NN0 e. _V /\ I e. V ) -> ( NN0 ^m I ) = { p | p : I --> NN0 } )
26	24, 12, 25	sylancr 414	. . . . . . . 8 |- ( ph -> ( NN0 ^m I ) = { p | p : I --> NN0 } )
27	24	a1i 9	. . . . . . . . 9 |- ( ph -> NN0 e. _V )
28		mapex 6901	. . . . . . . . 9 |- ( ( I e. V /\ NN0 e. _V ) -> { p | p : I --> NN0 } e. _V )
29	12, 27, 28	syl2anc 411	. . . . . . . 8 |- ( ph -> { p | p : I --> NN0 } e. _V )
30	26, 29	eqeltrd 2311	. . . . . . 7 |- ( ph -> ( NN0 ^m I ) e. _V )
31	6, 30	rabexd 4262	. . . . . 6 |- ( ph -> D e. _V )
32		mapvalg 6905	. . . . . 6 |- ( ( K e. _V /\ D e. _V ) -> ( K ^m D ) = { p | p : D --> K } )
33	23, 31, 32	syl2anc 411	. . . . 5 |- ( ph -> ( K ^m D ) = { p | p : D --> K } )
34		mapex 6901	. . . . . 6 |- ( ( D e. _V /\ K e. _V ) -> { p | p : D --> K } e. _V )
35	31, 23, 34	syl2anc 411	. . . . 5 |- ( ph -> { p | p : D --> K } e. _V )
36	33, 35	eqeltrd 2311	. . . 4 |- ( ph -> ( K ^m D ) e. _V )
37	36, 36	ofmresex 6343	. . . 4 |- ( ph -> ( oF ( +g ` R ) |` ( ( K ^m D ) X. ( K ^m D ) ) ) e. _V )
38		mpoexga 6421	. . . . 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 )
39	36, 36, 38	syl2anc 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 6421	. . . . 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 )
41	23, 36, 40	syl2anc 411	. . . 4 |- ( ph -> ( x e. K , g e. ( K ^m D ) |-> ( ( D X. { x } ) oF ( .r ` R ) g ) ) e. _V )
42		topnfn 13541	. . . . . . . 8 |- TopOpen Fn _V
43		funfvex 5692	. . . . . . . . 9 |- ( ( Fun TopOpen /\ R e. dom TopOpen ) -> ( TopOpen ` R ) e. _V )
44	43	funfni 5463	. . . . . . . 8 |- ( ( TopOpen Fn _V /\ R e. _V ) -> ( TopOpen ` R ) e. _V )
45	42, 19, 44	sylancr 414	. . . . . . 7 |- ( ph -> ( TopOpen ` R ) e. _V )
46		snexg 4302	. . . . . . 7 |- ( ( TopOpen ` R ) e. _V -> { ( TopOpen ` R ) } e. _V )
47	45, 46	syl 14	. . . . . 6 |- ( ph -> { ( TopOpen ` R ) } e. _V )
48		xpexg 4869	. . . . . 6 |- ( ( D e. _V /\ { ( TopOpen ` R ) } e. _V ) -> ( D X. { ( TopOpen ` R ) } ) e. _V )
49	31, 47, 48	syl2anc 411	. . . . 5 |- ( ph -> ( D X. { ( TopOpen ` R ) } ) e. _V )
50		ptex 13561	. . . . 5 |- ( ( D X. { ( TopOpen ` R ) } ) e. _V -> ( Xt_ ` ( D X. { ( TopOpen ` R ) } ) ) e. _V )
51	49, 50	syl 14	. . . 4 |- ( ph -> ( Xt_ ` ( D X. { ( TopOpen ` R ) } ) ) e. _V )
52	36, 37, 39, 13, 41, 51	psrvalstrd 14942	. . 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 13352	. . . . 5 |- ( Base ` ndx ) e. NN
54		opexg 4349	. . . . 5 |- ( ( ( Base ` ndx ) e. NN /\ ( K ^m D ) e. _V ) -> <. ( Base ` ndx ) , ( K ^m D ) >. e. _V )
55	53, 36, 54	sylancr 414	. . . 4 |- ( ph -> <. ( Base ` ndx ) , ( K ^m D ) >. e. _V )
56		tpid1g 3809	. . . 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 3390	. . . 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 ) } ) ) >. } ) )
58	55, 56, 57	3syl 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 ) } ) ) >. } ) )
59	52, 36, 58	opelstrbas 13412	. 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 ) } ) ) >. } ) ) )
60	15, 17, 59	3eqtr4d 2277	1 |- ( ph -> B = ( K ^m D ) )

Syntax hints:   -> wi 4   = wceq 1398   e. wcel 2205   {cab 2220   {crab 2526   _Vcvv 2815   u. cun 3212   {csn 3694   {ctp 3696   <.cop 3697   class class class wbr 4114   |-> cmpt 4176   X. cxp 4752   `'ccnv 4753   |` cres 4756   "cima 4757   Fn wfn 5352   -->wf 5353   ` cfv 5357  (class class class)co 6058   e. cmpo 6060   oFcof 6273   oRcofr 6274   ^m cmap 6895   Fincfn 6988   1c1 8144   <_ cle 8325   - cmin 8460   NNcn 9254   9c9 9312   NN0cn0 9513   ndxcnx 13293   Basecbs 13296   +g cplusg 13374   .rcmulr 13375  Scalarcsca 13377   .scvsca 13378  TopSetcts 13380   TopOpenctopn 13537   Xt_cpt 13552   gsum_g cgsu 13554   mPwSer cmps 14935

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 4230  ax-sep 4233  ax-pow 4292  ax-pr 4327  ax-un 4559  ax-setind 4664  ax-cnex 8234  ax-resscn 8235  ax-1cn 8236  ax-1re 8237  ax-icn 8238  ax-addcl 8239  ax-addrcl 8240  ax-mulcl 8241  ax-addcom 8243  ax-addass 8245  ax-distr 8247  ax-i2m1 8248  ax-0lt1 8249  ax-0id 8251  ax-rnegex 8252  ax-cnre 8254  ax-pre-ltirr 8255  ax-pre-ltwlin 8256  ax-pre-lttrn 8257  ax-pre-apti 8258  ax-pre-ltadd 8259

This theorem depends on definitions:  df-bi 117  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 3046  df-csb 3142  df-dif 3216  df-un 3218  df-in 3220  df-ss 3227  df-nul 3513  df-pw 3676  df-sn 3700  df-pr 3701  df-tp 3702  df-op 3703  df-uni 3920  df-int 3955  df-iun 3998  df-br 4115  df-opab 4177  df-mpt 4178  df-id 4419  df-xp 4760  df-rel 4761  df-cnv 4762  df-co 4763  df-dm 4764  df-rn 4765  df-res 4766  df-ima 4767  df-iota 5317  df-fun 5359  df-fn 5360  df-f 5361  df-f1 5362  df-fo 5363  df-f1o 5364  df-fv 5365  df-riota 6011  df-ov 6061  df-oprab 6062  df-mpo 6063  df-of 6275  df-1st 6347  df-2nd 6348  df-map 6897  df-ixp 6947  df-pnf 8326  df-mnf 8327  df-xr 8328  df-ltxr 8329  df-le 8330  df-sub 8462  df-neg 8463  df-inn 9255  df-2 9313  df-3 9314  df-4 9315  df-5 9316  df-6 9317  df-7 9318  df-8 9319  df-9 9320  df-n0 9514  df-z 9595  df-uz 9872  df-fz 10362  df-struct 13298  df-ndx 13299  df-slot 13300  df-base 13302  df-plusg 13387  df-mulr 13388  df-sca 13390  df-vsca 13391  df-tset 13393  df-rest 13538  df-topn 13539  df-topgen 13557  df-pt 13558  df-psr 14937

This theorem is referenced by:  psrelbas  14956  psrplusgg  14959  psraddcl  14961  psr0cl  14962  psrnegcl  14964  psrgrp  14966  psr1clfi  14969