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Theorem mgpscag 13930
Description: The multiplication monoid has the same (if any) scalars as the original ring. (Contributed by Mario Carneiro, 12-Mar-2015.) (Revised by Mario Carneiro, 5-May-2015.)
Hypotheses
Ref Expression
mgpbas.1  |-  M  =  (mulGrp `  R )
mgpsca.s  |-  S  =  (Scalar `  R )
Assertion
Ref Expression
mgpscag  |-  ( R  e.  V  ->  S  =  (Scalar `  M )
)

Proof of Theorem mgpscag
StepHypRef Expression
1 mgpsca.s . 2  |-  S  =  (Scalar `  R )
2 mulrslid 13205 . . . . 5  |-  ( .r  = Slot  ( .r `  ndx )  /\  ( .r `  ndx )  e.  NN )
32slotex 13099 . . . 4  |-  ( R  e.  V  ->  ( .r `  R )  e. 
_V )
4 scaslid 13226 . . . . 5  |-  (Scalar  = Slot  (Scalar `  ndx )  /\  (Scalar `  ndx )  e.  NN )
5 scandxnplusgndx 13228 . . . . 5  |-  (Scalar `  ndx )  =/=  ( +g  `  ndx )
6 plusgslid 13185 . . . . . 6  |-  ( +g  = Slot  ( +g  `  ndx )  /\  ( +g  `  ndx )  e.  NN )
76simpri 113 . . . . 5  |-  ( +g  ` 
ndx )  e.  NN
84, 5, 7setsslnid 13124 . . . 4  |-  ( ( R  e.  V  /\  ( .r `  R )  e.  _V )  -> 
(Scalar `  R )  =  (Scalar `  ( R sSet  <.
( +g  `  ndx ) ,  ( .r `  R ) >. )
) )
93, 8mpdan 421 . . 3  |-  ( R  e.  V  ->  (Scalar `  R )  =  (Scalar `  ( R sSet  <. ( +g  `  ndx ) ,  ( .r `  R
) >. ) ) )
10 mgpbas.1 . . . . 5  |-  M  =  (mulGrp `  R )
11 eqid 2229 . . . . 5  |-  ( .r
`  R )  =  ( .r `  R
)
1210, 11mgpvalg 13926 . . . 4  |-  ( R  e.  V  ->  M  =  ( R sSet  <. ( +g  `  ndx ) ,  ( .r `  R ) >. )
)
1312fveq2d 5639 . . 3  |-  ( R  e.  V  ->  (Scalar `  M )  =  (Scalar `  ( R sSet  <. ( +g  `  ndx ) ,  ( .r `  R
) >. ) ) )
149, 13eqtr4d 2265 . 2  |-  ( R  e.  V  ->  (Scalar `  R )  =  (Scalar `  M ) )
151, 14eqtrid 2274 1  |-  ( R  e.  V  ->  S  =  (Scalar `  M )
)
Colors of variables: wff set class
Syntax hints:    -> wi 4    = wceq 1395    e. wcel 2200   _Vcvv 2800   <.cop 3670   ` cfv 5324  (class class class)co 6013   NNcn 9133   ndxcnx 13069   sSet csts 13070  Slot cslot 13071   +g cplusg 13150   .rcmulr 13151  Scalarcsca 13153  mulGrpcmgp 13923
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 617  ax-in2 618  ax-io 714  ax-5 1493  ax-7 1494  ax-gen 1495  ax-ie1 1539  ax-ie2 1540  ax-8 1550  ax-10 1551  ax-11 1552  ax-i12 1553  ax-bndl 1555  ax-4 1556  ax-17 1572  ax-i9 1576  ax-ial 1580  ax-i5r 1581  ax-13 2202  ax-14 2203  ax-ext 2211  ax-sep 4205  ax-pow 4262  ax-pr 4297  ax-un 4528  ax-setind 4633  ax-cnex 8113  ax-resscn 8114  ax-1cn 8115  ax-1re 8116  ax-icn 8117  ax-addcl 8118  ax-addrcl 8119  ax-mulcl 8120  ax-addcom 8122  ax-addass 8124  ax-i2m1 8127  ax-0lt1 8128  ax-0id 8130  ax-rnegex 8131  ax-pre-ltirr 8134  ax-pre-lttrn 8136  ax-pre-ltadd 8138
This theorem depends on definitions:  df-bi 117  df-3an 1004  df-tru 1398  df-fal 1401  df-nf 1507  df-sb 1809  df-eu 2080  df-mo 2081  df-clab 2216  df-cleq 2222  df-clel 2225  df-nfc 2361  df-ne 2401  df-nel 2496  df-ral 2513  df-rex 2514  df-rab 2517  df-v 2802  df-sbc 3030  df-csb 3126  df-dif 3200  df-un 3202  df-in 3204  df-ss 3211  df-nul 3493  df-pw 3652  df-sn 3673  df-pr 3674  df-op 3676  df-uni 3892  df-int 3927  df-br 4087  df-opab 4149  df-mpt 4150  df-id 4388  df-xp 4729  df-rel 4730  df-cnv 4731  df-co 4732  df-dm 4733  df-rn 4734  df-res 4735  df-iota 5284  df-fun 5326  df-fn 5327  df-fv 5332  df-ov 6016  df-oprab 6017  df-mpo 6018  df-pnf 8206  df-mnf 8207  df-ltxr 8209  df-inn 9134  df-2 9192  df-3 9193  df-4 9194  df-5 9195  df-ndx 13075  df-slot 13076  df-sets 13079  df-plusg 13163  df-mulr 13164  df-sca 13166  df-mgp 13924
This theorem is referenced by: (None)
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