Theorem psrbasg 15065

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 2238	. . . 4 |- ( +g ` R ) = ( +g ` R )
4		eqid 2238	. . . 4 |- ( .r ` R ) = ( .r ` R )
5		eqid 2238	. . . 4 |- ( TopOpen ` R ) = ( TopOpen ` R )
6		psrbas.d	. . . 4 |- D = { f e. ( NN0 ^m I ) | ( `' f " NN ) e. Fin }
7		eqidd 2239	. . . 4 |- ( ph -> ( K ^m D ) = ( K ^m D ) )
8		eqid 2238	. . . 4 |- ( oF ( +g ` R ) |` ( ( K ^m D ) X. ( K ^m D ) ) ) = ( oF ( +g ` R ) |` ( ( K ^m D ) X. ( K ^m D ) ) )
9		eqid 2238	. . . 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 2238	. . . 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 2239	. . . 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 15050	. . 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 5699	. 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 13411	. . . . . . . 8 |- Base Fn _V
19	13	elexd 2835	. . . . . . . 8 |- ( ph -> R e. _V )
20		funfvex 5712	. . . . . . . . 9 |- ( ( Fun Base /\ R e. dom Base ) -> ( Base ` R ) e. _V )
21	20	funfni 5483	. . . . . . . 8 |- ( ( Base Fn _V /\ R e. _V ) -> ( Base ` R ) e. _V )
22	18, 19, 21	sylancr 418	. . . . . . 7 |- ( ph -> ( Base ` R ) e. _V )
23	2, 22	eqeltrid 2325	. . . . . 6 |- ( ph -> K e. _V )
24		nn0ex 9569	. . . . . . . . 9 |- NN0 e. _V
25		mapvalg 6932	. . . . . . . . 9 |- ( ( NN0 e. _V /\ I e. V ) -> ( NN0 ^m I ) = { p | p : I --> NN0 } )
26	24, 12, 25	sylancr 418	. . . . . . . 8 |- ( ph -> ( NN0 ^m I ) = { p | p : I --> NN0 } )
27	24	a1i 9	. . . . . . . . 9 |- ( ph -> NN0 e. _V )
28		mapex 6928	. . . . . . . . 9 |- ( ( I e. V /\ NN0 e. _V ) -> { p | p : I --> NN0 } e. _V )
29	12, 27, 28	syl2anc 415	. . . . . . . 8 |- ( ph -> { p | p : I --> NN0 } e. _V )
30	26, 29	eqeltrd 2315	. . . . . . 7 |- ( ph -> ( NN0 ^m I ) e. _V )
31	6, 30	rabexd 4281	. . . . . 6 |- ( ph -> D e. _V )
32		mapvalg 6932	. . . . . 6 |- ( ( K e. _V /\ D e. _V ) -> ( K ^m D ) = { p | p : D --> K } )
33	23, 31, 32	syl2anc 415	. . . . 5 |- ( ph -> ( K ^m D ) = { p | p : D --> K } )
34		mapex 6928	. . . . . 6 |- ( ( D e. _V /\ K e. _V ) -> { p | p : D --> K } e. _V )
35	31, 23, 34	syl2anc 415	. . . . 5 |- ( ph -> { p | p : D --> K } e. _V )
36	33, 35	eqeltrd 2315	. . . 4 |- ( ph -> ( K ^m D ) e. _V )
37	36, 36	ofmresex 6370	. . . 4 |- ( ph -> ( oF ( +g ` R ) |` ( ( K ^m D ) X. ( K ^m D ) ) ) e. _V )
38		mpoexga 6448	. . . . 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 415	. . . 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 6448	. . . . 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 415	. . . 4 |- ( ph -> ( x e. K , g e. ( K ^m D ) |-> ( ( D X. { x } ) oF ( .r ` R ) g ) ) e. _V )
42		topnfn 13598	. . . . . . . 8 |- TopOpen Fn _V
43		funfvex 5712	. . . . . . . . 9 |- ( ( Fun TopOpen /\ R e. dom TopOpen ) -> ( TopOpen ` R ) e. _V )
44	43	funfni 5483	. . . . . . . 8 |- ( ( TopOpen Fn _V /\ R e. _V ) -> ( TopOpen ` R ) e. _V )
45	42, 19, 44	sylancr 418	. . . . . . 7 |- ( ph -> ( TopOpen ` R ) e. _V )
46		snexg 4321	. . . . . . 7 |- ( ( TopOpen ` R ) e. _V -> { ( TopOpen ` R ) } e. _V )
47	45, 46	syl 14	. . . . . 6 |- ( ph -> { ( TopOpen ` R ) } e. _V )
48		xpexg 4889	. . . . . 6 |- ( ( D e. _V /\ { ( TopOpen ` R ) } e. _V ) -> ( D X. { ( TopOpen ` R ) } ) e. _V )
49	31, 47, 48	syl2anc 415	. . . . 5 |- ( ph -> ( D X. { ( TopOpen ` R ) } ) e. _V )
50		ptex 13618	. . . . 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 15052	. . 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 13408	. . . . 5 |- ( Base ` ndx ) e. NN
54		opexg 4368	. . . . 5 |- ( ( ( Base ` ndx ) e. NN /\ ( K ^m D ) e. _V ) -> <. ( Base ` ndx ) , ( K ^m D ) >. e. _V )
55	53, 36, 54	sylancr 418	. . . 4 |- ( ph -> <. ( Base ` ndx ) , ( K ^m D ) >. e. _V )
56		tpid1g 3825	. . . 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 3396	. . . 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 13469	. 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 2281	1 |- ( ph -> B = ( K ^m D ) )

This proof depends on syntax axioms:   -> wi 4   = wceq 1402   e. wcel 2209   {cab 2224   {crab 2532   _Vcvv 2821   u. cun 3218   {csn 3709   {ctp 3711   <.cop 3712   class class class wbr 4130   |-> cmpt 4192   X. cxp 4772   `'ccnv 4773   |` cres 4776   "cima 4777   Fn wfn 5372   -->wf 5373   ` cfv 5377  (class class class)co 6085   e. cmpo 6087   oFcof 6300   oRcofr 6301   ^m cmap 6922   Fincfn 7022   1c1 8180   <_ cle 8361   - cmin 8497   NNcn 9304   9c9 9362   NN0cn0 9563   ndxcnx 13349   Basecbs 13352   +g cplusg 13431   .rcmulr 13432  Scalarcsca 13434   .scvsca 13435  TopSetcts 13437   TopOpenctopn 13594   Xt_cpt 13609   gsum_g cgsu 14150   mPwSer cmps 15045

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 623  ax-in2 624  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-coll 4246  ax-sep 4249  ax-pow 4311  ax-pr 4346  ax-un 4578  ax-setind 4684  ax-cnex 8270  ax-resscn 8271  ax-1cn 8272  ax-1re 8273  ax-icn 8274  ax-addcl 8275  ax-addrcl 8276  ax-mulcl 8277  ax-addcom 8279  ax-addass 8281  ax-distr 8283  ax-i2m1 8284  ax-0lt1 8285  ax-0id 8287  ax-rnegex 8288  ax-cnre 8290  ax-pre-ltirr 8291  ax-pre-ltwlin 8292  ax-pre-lttrn 8293  ax-pre-apti 8294  ax-pre-ltadd 8295

This proof depends on definitions:  df-bi 117  df-3or 1010  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ne 2421  df-nel 2516  df-ral 2533  df-rex 2534  df-reu 2535  df-rab 2537  df-v 2823  df-sbc 3052  df-csb 3148  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-nul 3521  df-pw 3690  df-sn 3715  df-pr 3716  df-tp 3717  df-op 3718  df-uni 3936  df-int 3971  df-iun 4014  df-br 4131  df-opab 4193  df-mpt 4194  df-id 4438  df-xp 4780  df-rel 4781  df-cnv 4782  df-co 4783  df-dm 4784  df-rn 4785  df-res 4786  df-ima 4787  df-iota 5337  df-fun 5379  df-fn 5380  df-f 5381  df-f1 5382  df-fo 5383  df-f1o 5384  df-fv 5385  df-riota 6038  df-ov 6088  df-oprab 6089  df-mpo 6090  df-of 6302  df-1st 6374  df-2nd 6375  df-map 6924  df-ixp 6981  df-pnf 8362  df-mnf 8363  df-xr 8364  df-ltxr 8365  df-le 8366  df-sub 8499  df-neg 8500  df-inn 9305  df-2 9363  df-3 9364  df-4 9365  df-5 9366  df-6 9367  df-7 9368  df-8 9369  df-9 9370  df-n0 9564  df-z 9645  df-uz 9922  df-fz 10412  df-struct 13354  df-ndx 13355  df-slot 13356  df-base 13358  df-plusg 13444  df-mulr 13445  df-sca 13447  df-vsca 13448  df-tset 13450  df-rest 13595  df-topn 13596  df-topgen 13614  df-pt 13615  df-psr 15047

This theorem is used by:  psrelbas  15066  psrplusgg  15069  psraddcl  15071  psr0cl  15072  psrnegcl  15074  psrgrp  15076  psr1clfi  15079