| Step | Hyp | Ref
| Expression |
| 1 | | mp2pm2mp.a |
. . . 4
 Mat   |
| 2 | | mp2pm2mp.q |
. . . 4
Poly1   |
| 3 | | mp2pm2mp.l |
. . . 4
     |
| 4 | | mp2pm2mplem2.p |
. . . 4
Poly1   |
| 5 | | mp2pm2mp.m |
. . . 4
     |
| 6 | | mp2pm2mp.e |
. . . 4
.g mulGrp    |
| 7 | | mp2pm2mp.y |
. . . 4
var1   |
| 8 | | mp2pm2mp.i |
. . . 4
  
 g      coe1                 |
| 9 | | eqid 2622 |
. . . 4
 Mat   Mat   |
| 10 | | eqid 2622 |
. . . 4
    Mat       Mat    |
| 11 | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 | mply1topmatcl 20610 |
. . 3
 
         Mat     |
| 12 | | eqid 2622 |
. . . 4
         |
| 13 | | eqid 2622 |
. . . 4
.g mulGrp   .g mulGrp    |
| 14 | | eqid 2622 |
. . . 4
var1  var1   |
| 15 | | mp2pm2mp.t |
. . . 4

pMatToMatPoly   |
| 16 | 4, 9, 10, 12, 13, 14, 1, 2, 15 | pm2mpfval 20601 |
. . 3
 
        Mat             g        decompPMat          .g mulGrp    var1        |
| 17 | 11, 16 | syld3an3 1371 |
. 2
 
          g        decompPMat          .g mulGrp    var1        |
| 18 | 1 | matring 20249 |
. . . . 5
 

  |
| 19 | 18 | 3adant3 1081 |
. . . 4
 
   |
| 20 | | eqid 2622 |
. . . . 5
         |
| 21 | 2 | ply1ring 19618 |
. . . . . . 7

  |
| 22 | | ringcmn 18581 |
. . . . . . 7

CMnd |
| 23 | 18, 21, 22 | 3syl 18 |
. . . . . 6
 

CMnd |
| 24 | 23 | 3adant3 1081 |
. . . . 5
 
 CMnd |
| 25 | | nn0ex 11298 |
. . . . . 6
 |
| 26 | 25 | a1i 11 |
. . . . 5
 
   |
| 27 | 19 | adantr 481 |
. . . . . . 7
       |
| 28 | | simpl2 1065 |
. . . . . . . 8
       |
| 29 | 11 | adantr 481 |
. . . . . . . 8
             Mat     |
| 30 | | simpr 477 |
. . . . . . . 8
       |
| 31 | | eqid 2622 |
. . . . . . . . 9
         |
| 32 | 4, 9, 10, 1, 31 | decpmatcl 20572 |
. . . . . . . 8
          Mat  
     
decompPMat        |
| 33 | 28, 29, 30, 32 | syl3anc 1326 |
. . . . . . 7
          decompPMat        |
| 34 | | eqid 2622 |
. . . . . . . 8
mulGrp  mulGrp   |
| 35 | 31, 2, 14, 12, 34, 13, 3 | ply1tmcl 19642 |
. . . . . . 7
       decompPMat     
       decompPMat          .g mulGrp    var1      |
| 36 | 27, 33, 30, 35 | syl3anc 1326 |
. . . . . 6
          
decompPMat          .g mulGrp    var1      |
| 37 | | eqid 2622 |
. . . . . 6

      decompPMat          .g mulGrp    var1            decompPMat          .g mulGrp    var1      |
| 38 | 36, 37 | fmptd 6385 |
. . . . 5
 
        decompPMat          .g mulGrp    var1           |
| 39 | | fveq2 6191 |
. . . . . . . . . . . . . 14
  coe1      coe1       |
| 40 | 39 | oveqd 6667 |
. . . . . . . . . . . . 13
    coe1          coe1         |
| 41 | | oveq1 6657 |
. . . . . . . . . . . . 13
           |
| 42 | 40, 41 | oveq12d 6668 |
. . . . . . . . . . . 12
     coe1                coe1              |
| 43 | 42 | cbvmptv 4750 |
. . . . . . . . . . 11

    coe1                  coe1              |
| 44 | 43 | a1i 11 |
. . . . . . . . . 10
 
      coe1                  coe1               |
| 45 | 44 | oveq2d 6666 |
. . . . . . . . 9
 
  g      coe1               g 
    coe1                |
| 46 | 45 | mpt2eq3ia 6720 |
. . . . . . . 8
   g      coe1                  g      coe1                |
| 47 | 46 | mpteq2i 4741 |
. . . . . . 7
    g      coe1                  
 g      coe1                 |
| 48 | 8, 47 | eqtri 2644 |
. . . . . 6
  
 g      coe1                 |
| 49 | 1, 2, 3, 5, 6, 7, 48, 4, 12, 13, 14 | mp2pm2mplem5 20615 |
. . . . 5
 
        decompPMat          .g mulGrp    var1     finSupp       |
| 50 | 3, 20, 24, 26, 38, 49 | gsumcl 18316 |
. . . 4
 
  g        decompPMat          .g mulGrp    var1        |
| 51 | | simp3 1063 |
. . . 4
 
   |
| 52 | 19, 50, 51 | 3jca 1242 |
. . 3
 
 
 g        decompPMat          .g mulGrp    var1     
   |
| 53 | 1, 2, 3, 5, 6, 7, 8, 4 | mp2pm2mplem4 20614 |
. . . . . . . . . . 11
          decompPMat   coe1       |
| 54 | 53 | oveq1d 6665 |
. . . . . . . . . 10
          
decompPMat          .g mulGrp    var1      coe1             .g mulGrp    var1      |
| 55 | 54 | adantlr 751 |
. . . . . . . . 9
   

       
decompPMat          .g mulGrp    var1      coe1             .g mulGrp    var1      |
| 56 | 55 | mpteq2dva 4744 |
. . . . . . . 8
            decompPMat          .g mulGrp    var1        coe1             .g mulGrp    var1       |
| 57 | 56 | oveq2d 6666 |
. . . . . . 7
      g        decompPMat          .g mulGrp    var1       g 
  coe1             .g mulGrp    var1        |
| 58 | 57 | fveq2d 6195 |
. . . . . 6
     coe1 
g        decompPMat          .g mulGrp    var1       coe1  g    coe1             .g mulGrp    var1         |
| 59 | 58 | fveq1d 6193 |
. . . . 5
      coe1  g 
      decompPMat          .g mulGrp    var1           coe1  g    coe1             .g mulGrp    var1            |
| 60 | 19, 51 | jca 554 |
. . . . . . . . . 10
 
 
   |
| 61 | 60 | adantr 481 |
. . . . . . . . 9
     
   |
| 62 | | eqid 2622 |
. . . . . . . . . 10
coe1  coe1   |
| 63 | 2, 14, 3, 12, 34, 13, 62 | ply1coe 19666 |
. . . . . . . . 9
    g 
  coe1             .g mulGrp    var1        |
| 64 | 61, 63 | syl 17 |
. . . . . . . 8
      g 
  coe1             .g mulGrp    var1        |
| 65 | 64 | eqcomd 2628 |
. . . . . . 7
      g    coe1             .g mulGrp    var1        |
| 66 | 65 | fveq2d 6195 |
. . . . . 6
     coe1 
g    coe1             .g mulGrp    var1       coe1    |
| 67 | 66 | fveq1d 6193 |
. . . . 5
      coe1  g 
  coe1             .g mulGrp    var1           coe1       |
| 68 | 59, 67 | eqtrd 2656 |
. . . 4
      coe1  g 
      decompPMat          .g mulGrp    var1           coe1       |
| 69 | 68 | ralrimiva 2966 |
. . 3
 
   coe1  g        decompPMat          .g mulGrp    var1           coe1       |
| 70 | | eqid 2622 |
. . . 4
coe1  g        decompPMat          .g mulGrp    var1       coe1  g        decompPMat          .g mulGrp    var1        |
| 71 | 2, 3, 70, 62 | eqcoe1ply1eq 19667 |
. . 3
   g        decompPMat          .g mulGrp    var1     
    coe1  g        decompPMat          .g mulGrp    var1           coe1    
 g        decompPMat          .g mulGrp    var1         |
| 72 | 52, 69, 71 | sylc 65 |
. 2
 
  g        decompPMat          .g mulGrp    var1        |
| 73 | 17, 72 | eqtrd 2656 |
1
 
           |