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Theorem srgdilem 13150
Description: Lemma for srgdi 13155 and srgdir 13156. (Contributed by NM, 26-Aug-2011.) (Revised by Mario Carneiro, 6-Jan-2015.) (Revised by Thierry Arnoux, 1-Apr-2018.)
Hypotheses
Ref Expression
srgdilem.b  |-  B  =  ( Base `  R
)
srgdilem.p  |-  .+  =  ( +g  `  R )
srgdilem.t  |-  .x.  =  ( .r `  R )
Assertion
Ref Expression
srgdilem  |-  ( ( R  e. SRing  /\  ( X  e.  B  /\  Y  e.  B  /\  Z  e.  B )
)  ->  ( ( X  .x.  ( Y  .+  Z ) )  =  ( ( X  .x.  Y )  .+  ( X  .x.  Z ) )  /\  ( ( X 
.+  Y )  .x.  Z )  =  ( ( X  .x.  Z
)  .+  ( Y  .x.  Z ) ) ) )

Proof of Theorem srgdilem
Dummy variables  x  y  z are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 srgdilem.b . . . . . . . . . . 11  |-  B  =  ( Base `  R
)
2 eqid 2177 . . . . . . . . . . 11  |-  (mulGrp `  R )  =  (mulGrp `  R )
3 srgdilem.p . . . . . . . . . . 11  |-  .+  =  ( +g  `  R )
4 srgdilem.t . . . . . . . . . . 11  |-  .x.  =  ( .r `  R )
5 eqid 2177 . . . . . . . . . . 11  |-  ( 0g
`  R )  =  ( 0g `  R
)
61, 2, 3, 4, 5issrg 13146 . . . . . . . . . 10  |-  ( R  e. SRing 
<->  ( R  e. CMnd  /\  (mulGrp `  R )  e. 
Mnd  /\  A. x  e.  B  ( A. y  e.  B  A. z  e.  B  (
( x  .x.  (
y  .+  z )
)  =  ( ( x  .x.  y ) 
.+  ( x  .x.  z ) )  /\  ( ( x  .+  y )  .x.  z
)  =  ( ( x  .x.  z ) 
.+  ( y  .x.  z ) ) )  /\  ( ( ( 0g `  R ) 
.x.  x )  =  ( 0g `  R
)  /\  ( x  .x.  ( 0g `  R
) )  =  ( 0g `  R ) ) ) ) )
76simp3bi 1014 . . . . . . . . 9  |-  ( R  e. SRing  ->  A. x  e.  B  ( A. y  e.  B  A. z  e.  B  ( ( x  .x.  ( y  .+  z
) )  =  ( ( x  .x.  y
)  .+  ( x  .x.  z ) )  /\  ( ( x  .+  y )  .x.  z
)  =  ( ( x  .x.  z ) 
.+  ( y  .x.  z ) ) )  /\  ( ( ( 0g `  R ) 
.x.  x )  =  ( 0g `  R
)  /\  ( x  .x.  ( 0g `  R
) )  =  ( 0g `  R ) ) ) )
87r19.21bi 2565 . . . . . . . 8  |-  ( ( R  e. SRing  /\  x  e.  B )  ->  ( A. y  e.  B  A. z  e.  B  ( ( x  .x.  ( y  .+  z
) )  =  ( ( x  .x.  y
)  .+  ( x  .x.  z ) )  /\  ( ( x  .+  y )  .x.  z
)  =  ( ( x  .x.  z ) 
.+  ( y  .x.  z ) ) )  /\  ( ( ( 0g `  R ) 
.x.  x )  =  ( 0g `  R
)  /\  ( x  .x.  ( 0g `  R
) )  =  ( 0g `  R ) ) ) )
98simpld 112 . . . . . . 7  |-  ( ( R  e. SRing  /\  x  e.  B )  ->  A. y  e.  B  A. z  e.  B  ( (
x  .x.  ( y  .+  z ) )  =  ( ( x  .x.  y )  .+  (
x  .x.  z )
)  /\  ( (
x  .+  y )  .x.  z )  =  ( ( x  .x.  z
)  .+  ( y  .x.  z ) ) ) )
1093ad2antr1 1162 . . . . . 6  |-  ( ( R  e. SRing  /\  (
x  e.  B  /\  y  e.  B  /\  z  e.  B )
)  ->  A. y  e.  B  A. z  e.  B  ( (
x  .x.  ( y  .+  z ) )  =  ( ( x  .x.  y )  .+  (
x  .x.  z )
)  /\  ( (
x  .+  y )  .x.  z )  =  ( ( x  .x.  z
)  .+  ( y  .x.  z ) ) ) )
11 simpr2 1004 . . . . . 6  |-  ( ( R  e. SRing  /\  (
x  e.  B  /\  y  e.  B  /\  z  e.  B )
)  ->  y  e.  B )
12 rsp 2524 . . . . . 6  |-  ( A. y  e.  B  A. z  e.  B  (
( x  .x.  (
y  .+  z )
)  =  ( ( x  .x.  y ) 
.+  ( x  .x.  z ) )  /\  ( ( x  .+  y )  .x.  z
)  =  ( ( x  .x.  z ) 
.+  ( y  .x.  z ) ) )  ->  ( y  e.  B  ->  A. z  e.  B  ( (
x  .x.  ( y  .+  z ) )  =  ( ( x  .x.  y )  .+  (
x  .x.  z )
)  /\  ( (
x  .+  y )  .x.  z )  =  ( ( x  .x.  z
)  .+  ( y  .x.  z ) ) ) ) )
1310, 11, 12sylc 62 . . . . 5  |-  ( ( R  e. SRing  /\  (
x  e.  B  /\  y  e.  B  /\  z  e.  B )
)  ->  A. z  e.  B  ( (
x  .x.  ( y  .+  z ) )  =  ( ( x  .x.  y )  .+  (
x  .x.  z )
)  /\  ( (
x  .+  y )  .x.  z )  =  ( ( x  .x.  z
)  .+  ( y  .x.  z ) ) ) )
14 simpr3 1005 . . . . 5  |-  ( ( R  e. SRing  /\  (
x  e.  B  /\  y  e.  B  /\  z  e.  B )
)  ->  z  e.  B )
15 rsp 2524 . . . . 5  |-  ( A. z  e.  B  (
( x  .x.  (
y  .+  z )
)  =  ( ( x  .x.  y ) 
.+  ( x  .x.  z ) )  /\  ( ( x  .+  y )  .x.  z
)  =  ( ( x  .x.  z ) 
.+  ( y  .x.  z ) ) )  ->  ( z  e.  B  ->  ( (
x  .x.  ( y  .+  z ) )  =  ( ( x  .x.  y )  .+  (
x  .x.  z )
)  /\  ( (
x  .+  y )  .x.  z )  =  ( ( x  .x.  z
)  .+  ( y  .x.  z ) ) ) ) )
1613, 14, 15sylc 62 . . . 4  |-  ( ( R  e. SRing  /\  (
x  e.  B  /\  y  e.  B  /\  z  e.  B )
)  ->  ( (
x  .x.  ( y  .+  z ) )  =  ( ( x  .x.  y )  .+  (
x  .x.  z )
)  /\  ( (
x  .+  y )  .x.  z )  =  ( ( x  .x.  z
)  .+  ( y  .x.  z ) ) ) )
1716simpld 112 . . 3  |-  ( ( R  e. SRing  /\  (
x  e.  B  /\  y  e.  B  /\  z  e.  B )
)  ->  ( x  .x.  ( y  .+  z
) )  =  ( ( x  .x.  y
)  .+  ( x  .x.  z ) ) )
1817caovdig 6048 . 2  |-  ( ( R  e. SRing  /\  ( X  e.  B  /\  Y  e.  B  /\  Z  e.  B )
)  ->  ( X  .x.  ( Y  .+  Z
) )  =  ( ( X  .x.  Y
)  .+  ( X  .x.  Z ) ) )
1916simprd 114 . . 3  |-  ( ( R  e. SRing  /\  (
x  e.  B  /\  y  e.  B  /\  z  e.  B )
)  ->  ( (
x  .+  y )  .x.  z )  =  ( ( x  .x.  z
)  .+  ( y  .x.  z ) ) )
2019caovdirg 6051 . 2  |-  ( ( R  e. SRing  /\  ( X  e.  B  /\  Y  e.  B  /\  Z  e.  B )
)  ->  ( ( X  .+  Y )  .x.  Z )  =  ( ( X  .x.  Z
)  .+  ( Y  .x.  Z ) ) )
2118, 20jca 306 1  |-  ( ( R  e. SRing  /\  ( X  e.  B  /\  Y  e.  B  /\  Z  e.  B )
)  ->  ( ( X  .x.  ( Y  .+  Z ) )  =  ( ( X  .x.  Y )  .+  ( X  .x.  Z ) )  /\  ( ( X 
.+  Y )  .x.  Z )  =  ( ( X  .x.  Z
)  .+  ( Y  .x.  Z ) ) ) )
Colors of variables: wff set class
Syntax hints:    -> wi 4    /\ wa 104    /\ w3a 978    = wceq 1353    e. wcel 2148   A.wral 2455   ` cfv 5216  (class class class)co 5874   Basecbs 12461   +g cplusg 12535   .rcmulr 12536   0gc0g 12704   Mndcmnd 12816  CMndccmn 13086  mulGrpcmgp 13128  SRingcsrg 13144
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-io 709  ax-5 1447  ax-7 1448  ax-gen 1449  ax-ie1 1493  ax-ie2 1494  ax-8 1504  ax-10 1505  ax-11 1506  ax-i12 1507  ax-bndl 1509  ax-4 1510  ax-17 1526  ax-i9 1530  ax-ial 1534  ax-i5r 1535  ax-13 2150  ax-14 2151  ax-ext 2159  ax-sep 4121  ax-pow 4174  ax-pr 4209  ax-un 4433  ax-cnex 7901  ax-resscn 7902  ax-1re 7904  ax-addrcl 7907
This theorem depends on definitions:  df-bi 117  df-3an 980  df-tru 1356  df-nf 1461  df-sb 1763  df-eu 2029  df-mo 2030  df-clab 2164  df-cleq 2170  df-clel 2173  df-nfc 2308  df-ral 2460  df-rex 2461  df-rab 2464  df-v 2739  df-sbc 2963  df-un 3133  df-in 3135  df-ss 3142  df-pw 3577  df-sn 3598  df-pr 3599  df-op 3601  df-uni 3810  df-int 3845  df-br 4004  df-opab 4065  df-mpt 4066  df-id 4293  df-xp 4632  df-rel 4633  df-cnv 4634  df-co 4635  df-dm 4636  df-rn 4637  df-res 4638  df-iota 5178  df-fun 5218  df-fn 5219  df-fv 5224  df-riota 5830  df-ov 5877  df-inn 8919  df-2 8977  df-3 8978  df-ndx 12464  df-slot 12465  df-base 12467  df-plusg 12548  df-mulr 12549  df-0g 12706  df-srg 13145
This theorem is referenced by:  srgdi  13155  srgdir  13156
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