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Theorem evl1sca 19413
Description: Polynomial evaluation maps scalars to constant functions. (Contributed by Mario Carneiro, 12-Jun-2015.)
Hypotheses
Ref Expression
evl1sca.o  |-  O  =  (eval1 `  R )
evl1sca.p  |-  P  =  (Poly1 `  R )
evl1sca.b  |-  B  =  ( Base `  R
)
evl1sca.a  |-  A  =  (algSc `  P )
Assertion
Ref Expression
evl1sca  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  ( O `  ( A `  X ) )  =  ( B  X.  { X } ) )

Proof of Theorem evl1sca
Dummy variables  x  y are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 crngrng 15351 . . . . . 6  |-  ( R  e.  CRing  ->  R  e.  Ring )
21adantr 451 . . . . 5  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  R  e.  Ring )
3 evl1sca.p . . . . . 6  |-  P  =  (Poly1 `  R )
4 evl1sca.a . . . . . 6  |-  A  =  (algSc `  P )
5 evl1sca.b . . . . . 6  |-  B  =  ( Base `  R
)
6 eqid 2283 . . . . . 6  |-  ( Base `  P )  =  (
Base `  P )
73, 4, 5, 6ply1sclf 16361 . . . . 5  |-  ( R  e.  Ring  ->  A : B
--> ( Base `  P
) )
82, 7syl 15 . . . 4  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  A : B --> ( Base `  P
) )
9 ffvelrn 5663 . . . 4  |-  ( ( A : B --> ( Base `  P )  /\  X  e.  B )  ->  ( A `  X )  e.  ( Base `  P
) )
108, 9sylancom 648 . . 3  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  ( A `  X )  e.  ( Base `  P
) )
11 evl1sca.o . . . 4  |-  O  =  (eval1 `  R )
12 eqid 2283 . . . 4  |-  ( 1o eval  R )  =  ( 1o eval  R )
13 eqid 2283 . . . 4  |-  ( 1o mPoly  R )  =  ( 1o mPoly  R )
14 eqid 2283 . . . . 5  |-  (PwSer1 `  R
)  =  (PwSer1 `  R
)
153, 14, 6ply1bas 16274 . . . 4  |-  ( Base `  P )  =  (
Base `  ( 1o mPoly  R ) )
1611, 12, 5, 13, 15evl1val 19411 . . 3  |-  ( ( R  e.  CRing  /\  ( A `  X )  e.  ( Base `  P
) )  ->  ( O `  ( A `  X ) )  =  ( ( ( 1o eval  R ) `  ( A `  X )
)  o.  ( y  e.  B  |->  ( 1o 
X.  { y } ) ) ) )
1710, 16syldan 456 . 2  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  ( O `  ( A `  X ) )  =  ( ( ( 1o eval  R ) `  ( A `  X )
)  o.  ( y  e.  B  |->  ( 1o 
X.  { y } ) ) ) )
185ressid 13203 . . . . . . . . . 10  |-  ( R  e.  CRing  ->  ( Rs  B
)  =  R )
1918adantr 451 . . . . . . . . 9  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  ( Rs  B )  =  R )
2019oveq2d 5874 . . . . . . . 8  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  ( 1o mPoly  ( Rs  B ) )  =  ( 1o mPoly  R )
)
2120fveq2d 5529 . . . . . . 7  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  (algSc `  ( 1o mPoly  ( Rs  B
) ) )  =  (algSc `  ( 1o mPoly  R ) ) )
223, 4ply1ascl 16335 . . . . . . 7  |-  A  =  (algSc `  ( 1o mPoly  R ) )
2321, 22syl6reqr 2334 . . . . . 6  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  A  =  (algSc `  ( 1o mPoly  ( Rs  B ) ) ) )
2423fveq1d 5527 . . . . 5  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  ( A `  X )  =  ( (algSc `  ( 1o mPoly  ( Rs  B
) ) ) `  X ) )
2524fveq2d 5529 . . . 4  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  (
( 1o eval  R ) `  ( A `  X
) )  =  ( ( 1o eval  R ) `
 ( (algSc `  ( 1o mPoly  ( Rs  B
) ) ) `  X ) ) )
2612, 5evlval 19408 . . . . 5  |-  ( 1o eval  R )  =  ( ( 1o evalSub  R ) `  B )
27 eqid 2283 . . . . 5  |-  ( 1o mPoly 
( Rs  B ) )  =  ( 1o mPoly  ( Rs  B
) )
28 eqid 2283 . . . . 5  |-  ( Rs  B )  =  ( Rs  B )
29 eqid 2283 . . . . 5  |-  (algSc `  ( 1o mPoly  ( Rs  B
) ) )  =  (algSc `  ( 1o mPoly  ( Rs  B ) ) )
30 1on 6486 . . . . . 6  |-  1o  e.  On
3130a1i 10 . . . . 5  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  1o  e.  On )
32 simpl 443 . . . . 5  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  R  e.  CRing )
335subrgid 15547 . . . . . 6  |-  ( R  e.  Ring  ->  B  e.  (SubRing `  R )
)
342, 33syl 15 . . . . 5  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  B  e.  (SubRing `  R )
)
35 simpr 447 . . . . 5  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  X  e.  B )
3626, 27, 28, 5, 29, 31, 32, 34, 35evlssca 19406 . . . 4  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  (
( 1o eval  R ) `  ( (algSc `  ( 1o mPoly  ( Rs  B ) ) ) `
 X ) )  =  ( ( B  ^m  1o )  X. 
{ X } ) )
3725, 36eqtrd 2315 . . 3  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  (
( 1o eval  R ) `  ( A `  X
) )  =  ( ( B  ^m  1o )  X.  { X }
) )
3837coeq1d 4845 . 2  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  (
( ( 1o eval  R
) `  ( A `  X ) )  o.  ( y  e.  B  |->  ( 1o  X.  {
y } ) ) )  =  ( ( ( B  ^m  1o )  X.  { X }
)  o.  ( y  e.  B  |->  ( 1o 
X.  { y } ) ) ) )
39 df1o2 6491 . . . . . . 7  |-  1o  =  { (/) }
40 fvex 5539 . . . . . . . 8  |-  ( Base `  R )  e.  _V
415, 40eqeltri 2353 . . . . . . 7  |-  B  e. 
_V
42 0ex 4150 . . . . . . 7  |-  (/)  e.  _V
43 eqid 2283 . . . . . . 7  |-  ( y  e.  B  |->  ( 1o 
X.  { y } ) )  =  ( y  e.  B  |->  ( 1o  X.  { y } ) )
4439, 41, 42, 43mapsnf1o3 6816 . . . . . 6  |-  ( y  e.  B  |->  ( 1o 
X.  { y } ) ) : B -1-1-onto-> ( B  ^m  1o )
45 f1of 5472 . . . . . 6  |-  ( ( y  e.  B  |->  ( 1o  X.  { y } ) ) : B -1-1-onto-> ( B  ^m  1o )  ->  ( y  e.  B  |->  ( 1o  X.  { y } ) ) : B --> ( B  ^m  1o ) )
4644, 45mp1i 11 . . . . 5  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  (
y  e.  B  |->  ( 1o  X.  { y } ) ) : B --> ( B  ^m  1o ) )
4743fmpt 5681 . . . . 5  |-  ( A. y  e.  B  ( 1o  X.  { y } )  e.  ( B  ^m  1o )  <->  ( y  e.  B  |->  ( 1o 
X.  { y } ) ) : B --> ( B  ^m  1o ) )
4846, 47sylibr 203 . . . 4  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  A. y  e.  B  ( 1o  X.  { y } )  e.  ( B  ^m  1o ) )
49 eqidd 2284 . . . 4  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  (
y  e.  B  |->  ( 1o  X.  { y } ) )  =  ( y  e.  B  |->  ( 1o  X.  {
y } ) ) )
50 fconstmpt 4732 . . . . 5  |-  ( ( B  ^m  1o )  X.  { X }
)  =  ( x  e.  ( B  ^m  1o )  |->  X )
5150a1i 10 . . . 4  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  (
( B  ^m  1o )  X.  { X }
)  =  ( x  e.  ( B  ^m  1o )  |->  X ) )
52 eqidd 2284 . . . 4  |-  ( x  =  ( 1o  X.  { y } )  ->  X  =  X )
5348, 49, 51, 52fmptcof 5692 . . 3  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  (
( ( B  ^m  1o )  X.  { X } )  o.  (
y  e.  B  |->  ( 1o  X.  { y } ) ) )  =  ( y  e.  B  |->  X ) )
54 fconstmpt 4732 . . 3  |-  ( B  X.  { X }
)  =  ( y  e.  B  |->  X )
5553, 54syl6eqr 2333 . 2  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  (
( ( B  ^m  1o )  X.  { X } )  o.  (
y  e.  B  |->  ( 1o  X.  { y } ) ) )  =  ( B  X.  { X } ) )
5617, 38, 553eqtrd 2319 1  |-  ( ( R  e.  CRing  /\  X  e.  B )  ->  ( O `  ( A `  X ) )  =  ( B  X.  { X } ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 358    = wceq 1623    e. wcel 1684   A.wral 2543   _Vcvv 2788   (/)c0 3455   {csn 3640    e. cmpt 4077   Oncon0 4392    X. cxp 4687    o. ccom 4693   -->wf 5251   -1-1-onto->wf1o 5254   ` cfv 5255  (class class class)co 5858   1oc1o 6472    ^m cmap 6772   Basecbs 13148   ↾s cress 13149   Ringcrg 15337   CRingccrg 15338  SubRingcsubrg 15541  algSccascl 16052   mPoly cmpl 16089   eval cevl 16091  PwSer1cps1 16250  Poly1cpl1 16252  eval1ce1 16254
This theorem is referenced by:  evl1scad  19414  pf1const  19429  pf1ind  19438  ply1rem  19549  fta1g  19553  fta1blem  19554  plypf1  19594
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-rmo 2551  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-int 3863  df-iun 3907  df-iin 3908  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-se 4353  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-isom 5264  df-ov 5861  df-oprab 5862  df-mpt2 5863  df-of 6078  df-ofr 6079  df-1st 6122  df-2nd 6123  df-riota 6304  df-recs 6388  df-rdg 6423  df-1o 6479  df-2o 6480  df-oadd 6483  df-er 6660  df-map 6774  df-pm 6775  df-ixp 6818  df-en 6864  df-dom 6865  df-sdom 6866  df-fin 6867  df-sup 7194  df-oi 7225  df-card 7572  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-2 9804  df-3 9805  df-4 9806  df-5 9807  df-6 9808  df-7 9809  df-8 9810  df-9 9811  df-10 9812  df-n0 9966  df-z 10025  df-dec 10125  df-uz 10231  df-fz 10783  df-fzo 10871  df-seq 11047  df-hash 11338  df-struct 13150  df-ndx 13151  df-slot 13152  df-base 13153  df-sets 13154  df-ress 13155  df-plusg 13221  df-mulr 13222  df-sca 13224  df-vsca 13225  df-tset 13227  df-ple 13228  df-ds 13230  df-hom 13232  df-cco 13233  df-prds 13348  df-pws 13350  df-0g 13404  df-gsum 13405  df-mre 13488  df-mrc 13489  df-acs 13491  df-mnd 14367  df-mhm 14415  df-submnd 14416  df-grp 14489  df-minusg 14490  df-sbg 14491  df-mulg 14492  df-subg 14618  df-ghm 14681  df-cntz 14793  df-cmn 15091  df-abl 15092  df-mgp 15326  df-rng 15340  df-cring 15341  df-ur 15342  df-rnghom 15496  df-subrg 15543  df-lmod 15629  df-lss 15690  df-lsp 15729  df-assa 16053  df-asp 16054  df-ascl 16055  df-psr 16098  df-mvr 16099  df-mpl 16100  df-evls 16101  df-evl 16102  df-opsr 16106  df-psr1 16257  df-ply1 16259  df-evl1 16261
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