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Theorem efgtval 16530
Description: Value of the extension function, which maps a word (a representation of the group element as a sequence of elements and their inverses) to its direct extensions, defined as the original representation with an element and its inverse inserted somewhere in the string. (Contributed by Mario Carneiro, 29-Sep-2015.)
Hypotheses
Ref Expression
efgval.w  |-  W  =  (  _I  ` Word  ( I  X.  2o ) )
efgval.r  |-  .~  =  ( ~FG  `  I )
efgval2.m  |-  M  =  ( y  e.  I ,  z  e.  2o  |->  <. y ,  ( 1o 
\  z ) >.
)
efgval2.t  |-  T  =  ( v  e.  W  |->  ( n  e.  ( 0 ... ( # `  v ) ) ,  w  e.  ( I  X.  2o )  |->  ( v splice  <. n ,  n ,  <" w ( M `  w ) "> >. )
) )
Assertion
Ref Expression
efgtval  |-  ( ( X  e.  W  /\  N  e.  ( 0 ... ( # `  X
) )  /\  A  e.  ( I  X.  2o ) )  ->  ( N ( T `  X ) A )  =  ( X splice  <. N ,  N ,  <" A
( M `  A
) "> >. )
)
Distinct variable groups:    y, z    v, n, w, y, z   
n, M, v, w   
n, W, v, w, y, z    y,  .~ , z    n, I, v, w, y, z
Allowed substitution hints:    A( y, z, w, v, n)    .~ ( w, v, n)    T( y, z, w, v, n)    M( y, z)    N( y, z, w, v, n)    X( y, z, w, v, n)

Proof of Theorem efgtval
Dummy variables  a 
b are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 efgval.w . . . . . 6  |-  W  =  (  _I  ` Word  ( I  X.  2o ) )
2 efgval.r . . . . . 6  |-  .~  =  ( ~FG  `  I )
3 efgval2.m . . . . . 6  |-  M  =  ( y  e.  I ,  z  e.  2o  |->  <. y ,  ( 1o 
\  z ) >.
)
4 efgval2.t . . . . . 6  |-  T  =  ( v  e.  W  |->  ( n  e.  ( 0 ... ( # `  v ) ) ,  w  e.  ( I  X.  2o )  |->  ( v splice  <. n ,  n ,  <" w ( M `  w ) "> >. )
) )
51, 2, 3, 4efgtf 16529 . . . . 5  |-  ( X  e.  W  ->  (
( T `  X
)  =  ( a  e.  ( 0 ... ( # `  X
) ) ,  b  e.  ( I  X.  2o )  |->  ( X splice  <. a ,  a , 
<" b ( M `
 b ) "> >. ) )  /\  ( T `  X ) : ( ( 0 ... ( # `  X
) )  X.  (
I  X.  2o ) ) --> W ) )
65simpld 459 . . . 4  |-  ( X  e.  W  ->  ( T `  X )  =  ( a  e.  ( 0 ... ( # `
 X ) ) ,  b  e.  ( I  X.  2o ) 
|->  ( X splice  <. a ,  a ,  <" b ( M `  b ) "> >.
) ) )
76oveqd 6292 . . 3  |-  ( X  e.  W  ->  ( N ( T `  X ) A )  =  ( N ( a  e.  ( 0 ... ( # `  X
) ) ,  b  e.  ( I  X.  2o )  |->  ( X splice  <. a ,  a , 
<" b ( M `
 b ) "> >. ) ) A ) )
8 oteq1 4215 . . . . . 6  |-  ( a  =  N  ->  <. a ,  a ,  <" b ( M `  b ) "> >.  =  <. N ,  a ,  <" b ( M `  b ) "> >. )
9 oteq2 4216 . . . . . 6  |-  ( a  =  N  ->  <. N , 
a ,  <" b
( M `  b
) "> >.  =  <. N ,  N ,  <" b ( M `  b ) "> >.
)
108, 9eqtrd 2501 . . . . 5  |-  ( a  =  N  ->  <. a ,  a ,  <" b ( M `  b ) "> >.  =  <. N ,  N ,  <" b ( M `  b ) "> >. )
1110oveq2d 6291 . . . 4  |-  ( a  =  N  ->  ( X splice  <. a ,  a ,  <" b ( M `  b ) "> >. )  =  ( X splice  <. N ,  N ,  <" b
( M `  b
) "> >. )
)
12 id 22 . . . . . . 7  |-  ( b  =  A  ->  b  =  A )
13 fveq2 5857 . . . . . . 7  |-  ( b  =  A  ->  ( M `  b )  =  ( M `  A ) )
1412, 13s2eqd 12777 . . . . . 6  |-  ( b  =  A  ->  <" b
( M `  b
) ">  =  <" A ( M `
 A ) "> )
1514oteq3d 4220 . . . . 5  |-  ( b  =  A  ->  <. N ,  N ,  <" b
( M `  b
) "> >.  =  <. N ,  N ,  <" A ( M `  A ) "> >.
)
1615oveq2d 6291 . . . 4  |-  ( b  =  A  ->  ( X splice  <. N ,  N ,  <" b ( M `  b ) "> >. )  =  ( X splice  <. N ,  N ,  <" A
( M `  A
) "> >. )
)
17 eqid 2460 . . . 4  |-  ( a  e.  ( 0 ... ( # `  X
) ) ,  b  e.  ( I  X.  2o )  |->  ( X splice  <. a ,  a , 
<" b ( M `
 b ) "> >. ) )  =  ( a  e.  ( 0 ... ( # `  X ) ) ,  b  e.  ( I  X.  2o )  |->  ( X splice  <. a ,  a ,  <" b ( M `  b ) "> >. )
)
18 ovex 6300 . . . 4  |-  ( X splice  <. N ,  N ,  <" A ( M `
 A ) "> >. )  e.  _V
1911, 16, 17, 18ovmpt2 6413 . . 3  |-  ( ( N  e.  ( 0 ... ( # `  X
) )  /\  A  e.  ( I  X.  2o ) )  ->  ( N ( a  e.  ( 0 ... ( # `
 X ) ) ,  b  e.  ( I  X.  2o ) 
|->  ( X splice  <. a ,  a ,  <" b ( M `  b ) "> >.
) ) A )  =  ( X splice  <. N ,  N ,  <" A
( M `  A
) "> >. )
)
207, 19sylan9eq 2521 . 2  |-  ( ( X  e.  W  /\  ( N  e.  (
0 ... ( # `  X
) )  /\  A  e.  ( I  X.  2o ) ) )  -> 
( N ( T `
 X ) A )  =  ( X splice  <. N ,  N ,  <" A ( M `
 A ) "> >. ) )
21203impb 1187 1  |-  ( ( X  e.  W  /\  N  e.  ( 0 ... ( # `  X
) )  /\  A  e.  ( I  X.  2o ) )  ->  ( N ( T `  X ) A )  =  ( X splice  <. N ,  N ,  <" A
( M `  A
) "> >. )
)
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    /\ wa 369    /\ w3a 968    = wceq 1374    e. wcel 1762    \ cdif 3466   <.cop 4026   <.cotp 4028    |-> cmpt 4498    _I cid 4783    X. cxp 4990   -->wf 5575   ` cfv 5579  (class class class)co 6275    |-> cmpt2 6277   1oc1o 7113   2oc2o 7114   0cc0 9481   ...cfz 11661   #chash 12360  Word cword 12487   splice csplice 12492   <"cs2 12756   ~FG cefg 16513
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1596  ax-4 1607  ax-5 1675  ax-6 1714  ax-7 1734  ax-8 1764  ax-9 1766  ax-10 1781  ax-11 1786  ax-12 1798  ax-13 1961  ax-ext 2438  ax-rep 4551  ax-sep 4561  ax-nul 4569  ax-pow 4618  ax-pr 4679  ax-un 6567  ax-cnex 9537  ax-resscn 9538  ax-1cn 9539  ax-icn 9540  ax-addcl 9541  ax-addrcl 9542  ax-mulcl 9543  ax-mulrcl 9544  ax-mulcom 9545  ax-addass 9546  ax-mulass 9547  ax-distr 9548  ax-i2m1 9549  ax-1ne0 9550  ax-1rid 9551  ax-rnegex 9552  ax-rrecex 9553  ax-cnre 9554  ax-pre-lttri 9555  ax-pre-lttrn 9556  ax-pre-ltadd 9557  ax-pre-mulgt0 9558
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3or 969  df-3an 970  df-tru 1377  df-ex 1592  df-nf 1595  df-sb 1707  df-eu 2272  df-mo 2273  df-clab 2446  df-cleq 2452  df-clel 2455  df-nfc 2610  df-ne 2657  df-nel 2658  df-ral 2812  df-rex 2813  df-reu 2814  df-rab 2816  df-v 3108  df-sbc 3325  df-csb 3429  df-dif 3472  df-un 3474  df-in 3476  df-ss 3483  df-pss 3485  df-nul 3779  df-if 3933  df-pw 4005  df-sn 4021  df-pr 4023  df-tp 4025  df-op 4027  df-ot 4029  df-uni 4239  df-int 4276  df-iun 4320  df-br 4441  df-opab 4499  df-mpt 4500  df-tr 4534  df-eprel 4784  df-id 4788  df-po 4793  df-so 4794  df-fr 4831  df-we 4833  df-ord 4874  df-on 4875  df-lim 4876  df-suc 4877  df-xp 4998  df-rel 4999  df-cnv 5000  df-co 5001  df-dm 5002  df-rn 5003  df-res 5004  df-ima 5005  df-iota 5542  df-fun 5581  df-fn 5582  df-f 5583  df-f1 5584  df-fo 5585  df-f1o 5586  df-fv 5587  df-riota 6236  df-ov 6278  df-oprab 6279  df-mpt2 6280  df-om 6672  df-1st 6774  df-2nd 6775  df-recs 7032  df-rdg 7066  df-1o 7120  df-2o 7121  df-oadd 7124  df-er 7301  df-map 7412  df-pm 7413  df-en 7507  df-dom 7508  df-sdom 7509  df-fin 7510  df-card 8309  df-pnf 9619  df-mnf 9620  df-xr 9621  df-ltxr 9622  df-le 9623  df-sub 9796  df-neg 9797  df-nn 10526  df-n0 10785  df-z 10854  df-uz 11072  df-fz 11662  df-fzo 11782  df-hash 12361  df-word 12495  df-concat 12497  df-s1 12498  df-substr 12499  df-splice 12500  df-s2 12763
This theorem is referenced by:  efginvrel2  16534  efgredleme  16550  efgredlemc  16552  efgcpbllemb  16562
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