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Theorem mgpscag 13939
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 13214 . . . . 5  |-  ( .r  = Slot  ( .r `  ndx )  /\  ( .r `  ndx )  e.  NN )
32slotex 13108 . . . 4  |-  ( R  e.  V  ->  ( .r `  R )  e. 
_V )
4 scaslid 13235 . . . . 5  |-  (Scalar  = Slot  (Scalar `  ndx )  /\  (Scalar `  ndx )  e.  NN )
5 scandxnplusgndx 13237 . . . . 5  |-  (Scalar `  ndx )  =/=  ( +g  `  ndx )
6 plusgslid 13194 . . . . . 6  |-  ( +g  = Slot  ( +g  `  ndx )  /\  ( +g  `  ndx )  e.  NN )
76simpri 113 . . . . 5  |-  ( +g  ` 
ndx )  e.  NN
84, 5, 7setsslnid 13133 . . . 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 2231 . . . . 5  |-  ( .r
`  R )  =  ( .r `  R
)
1210, 11mgpvalg 13935 . . . 4  |-  ( R  e.  V  ->  M  =  ( R sSet  <. ( +g  `  ndx ) ,  ( .r `  R ) >. )
)
1312fveq2d 5643 . . 3  |-  ( R  e.  V  ->  (Scalar `  M )  =  (Scalar `  ( R sSet  <. ( +g  `  ndx ) ,  ( .r `  R
) >. ) ) )
149, 13eqtr4d 2267 . 2  |-  ( R  e.  V  ->  (Scalar `  R )  =  (Scalar `  M ) )
151, 14eqtrid 2276 1  |-  ( R  e.  V  ->  S  =  (Scalar `  M )
)
Colors of variables: wff set class
Syntax hints:    -> wi 4    = wceq 1397    e. wcel 2202   _Vcvv 2802   <.cop 3672   ` cfv 5326  (class class class)co 6017   NNcn 9142   ndxcnx 13078   sSet csts 13079  Slot cslot 13080   +g cplusg 13159   .rcmulr 13160  Scalarcsca 13162  mulGrpcmgp 13932
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 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-13 2204  ax-14 2205  ax-ext 2213  ax-sep 4207  ax-pow 4264  ax-pr 4299  ax-un 4530  ax-setind 4635  ax-cnex 8122  ax-resscn 8123  ax-1cn 8124  ax-1re 8125  ax-icn 8126  ax-addcl 8127  ax-addrcl 8128  ax-mulcl 8129  ax-addcom 8131  ax-addass 8133  ax-i2m1 8136  ax-0lt1 8137  ax-0id 8139  ax-rnegex 8140  ax-pre-ltirr 8143  ax-pre-lttrn 8145  ax-pre-ltadd 8147
This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-fal 1403  df-nf 1509  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ne 2403  df-nel 2498  df-ral 2515  df-rex 2516  df-rab 2519  df-v 2804  df-sbc 3032  df-csb 3128  df-dif 3202  df-un 3204  df-in 3206  df-ss 3213  df-nul 3495  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-int 3929  df-br 4089  df-opab 4151  df-mpt 4152  df-id 4390  df-xp 4731  df-rel 4732  df-cnv 4733  df-co 4734  df-dm 4735  df-rn 4736  df-res 4737  df-iota 5286  df-fun 5328  df-fn 5329  df-fv 5334  df-ov 6020  df-oprab 6021  df-mpo 6022  df-pnf 8215  df-mnf 8216  df-ltxr 8218  df-inn 9143  df-2 9201  df-3 9202  df-4 9203  df-5 9204  df-ndx 13084  df-slot 13085  df-sets 13088  df-plusg 13172  df-mulr 13173  df-sca 13175  df-mgp 13933
This theorem is referenced by: (None)
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