| Step | Hyp | Ref
| Expression |
| 1 | | df-ov 6653 |
. . . . . . . . . 10
                              |
| 2 | | simpr 477 |
. . . . . . . . . . . 12
   
 
   |
| 3 | | simplrr 801 |
. . . . . . . . . . . 12
   
 
   |
| 4 | | opelxpi 5148 |
. . . . . . . . . . . 12
 
        |
| 5 | 2, 3, 4 | syl2anc 693 |
. . . . . . . . . . 11
   
 
        |
| 6 | | mamuvs2.n |
. . . . . . . . . . . . . 14
   |
| 7 | | mamuvs2.o |
. . . . . . . . . . . . . 14
   |
| 8 | | xpfi 8231 |
. . . . . . . . . . . . . 14
 
     |
| 9 | 6, 7, 8 | syl2anc 693 |
. . . . . . . . . . . . 13
     |
| 10 | 9 | ad2antrr 762 |
. . . . . . . . . . . 12
   
 
     |
| 11 | | mamuvs2.y |
. . . . . . . . . . . . 13
   |
| 12 | 11 | ad2antrr 762 |
. . . . . . . . . . . 12
   
 
   |
| 13 | | mamuvs2.z |
. . . . . . . . . . . . . 14
       |
| 14 | | elmapi 7879 |
. . . . . . . . . . . . . 14
  
          |
| 15 | | ffn 6045 |
. . . . . . . . . . . . . 14
      
    |
| 16 | 13, 14, 15 | 3syl 18 |
. . . . . . . . . . . . 13
     |
| 17 | 16 | ad2antrr 762 |
. . . . . . . . . . . 12
   
 
     |
| 18 | | df-ov 6653 |
. . . . . . . . . . . . . 14
            |
| 19 | 18 | eqcomi 2631 |
. . . . . . . . . . . . 13
      
     |
| 20 | 19 | a1i 11 |
. . . . . . . . . . . 12
    
        
      
      |
| 21 | 10, 12, 17, 20 | ofc1 6920 |
. . . . . . . . . . 11
    
        
                        |
| 22 | 5, 21 | mpdan 702 |
. . . . . . . . . 10
   
 
                         |
| 23 | 1, 22 | syl5eq 2668 |
. . . . . . . . 9
   
 
                      |
| 24 | 23 | oveq2d 6666 |
. . . . . . . 8
   
 
                         
        |
| 25 | | mamuvs2.r |
. . . . . . . . . . 11
   |
| 26 | | eqid 2622 |
. . . . . . . . . . . 12
mulGrp  mulGrp   |
| 27 | 26 | crngmgp 18555 |
. . . . . . . . . . 11

mulGrp 
CMnd |
| 28 | 25, 27 | syl 17 |
. . . . . . . . . 10
 mulGrp  CMnd |
| 29 | 28 | ad2antrr 762 |
. . . . . . . . 9
   
 
 mulGrp  CMnd |
| 30 | | mamuvs2.x |
. . . . . . . . . . . 12
       |
| 31 | | elmapi 7879 |
. . . . . . . . . . . 12
  
          |
| 32 | 30, 31 | syl 17 |
. . . . . . . . . . 11
         |
| 33 | 32 | ad2antrr 762 |
. . . . . . . . . 10
   
 
         |
| 34 | | simplrl 800 |
. . . . . . . . . 10
   
 
   |
| 35 | 33, 34, 2 | fovrnd 6806 |
. . . . . . . . 9
   
 
       |
| 36 | 13, 14 | syl 17 |
. . . . . . . . . . 11
         |
| 37 | 36 | ad2antrr 762 |
. . . . . . . . . 10
   
 
         |
| 38 | 37, 2, 3 | fovrnd 6806 |
. . . . . . . . 9
   
 
       |
| 39 | | mamuvs2.b |
. . . . . . . . . . 11
     |
| 40 | 26, 39 | mgpbas 18495 |
. . . . . . . . . 10
   mulGrp    |
| 41 | | mamuvs2.t |
. . . . . . . . . . 11
     |
| 42 | 26, 41 | mgpplusg 18493 |
. . . . . . . . . 10
  mulGrp    |
| 43 | 40, 42 | cmn12 18213 |
. . . . . . . . 9
  mulGrp  CMnd                                      |
| 44 | 29, 35, 12, 38, 43 | syl13anc 1328 |
. . . . . . . 8
   
 
                           |
| 45 | 24, 44 | eqtrd 2656 |
. . . . . . 7
   
 
                                  |
| 46 | 45 | mpteq2dva 4744 |
. . . . . 6
 

                                       |
| 47 | 46 | oveq2d 6666 |
. . . . 5
 

   g                        g                  |
| 48 | | eqid 2622 |
. . . . . 6
         |
| 49 | | eqid 2622 |
. . . . . 6
       |
| 50 | | crngring 18558 |
. . . . . . . 8

  |
| 51 | 25, 50 | syl 17 |
. . . . . . 7
   |
| 52 | 51 | adantr 481 |
. . . . . 6
 

 
  |
| 53 | 6 | adantr 481 |
. . . . . 6
 

 
  |
| 54 | 11 | adantr 481 |
. . . . . 6
 

 
  |
| 55 | 51 | ad2antrr 762 |
. . . . . . 7
   
 
   |
| 56 | 39, 41 | ringcl 18561 |
. . . . . . 7
                       |
| 57 | 55, 35, 38, 56 | syl3anc 1326 |
. . . . . 6
   
 
             |
| 58 | | eqid 2622 |
. . . . . . 7
                         |
| 59 | | ovexd 6680 |
. . . . . . 7
   
 
             |
| 60 | | fvex 6201 |
. . . . . . . 8
     |
| 61 | 60 | a1i 11 |
. . . . . . 7
 

        |
| 62 | 58, 53, 59, 61 | fsuppmptdm 8286 |
. . . . . 6
 

              finSupp       |
| 63 | 39, 48, 49, 41, 52, 53, 54, 57, 62 | gsummulc2 18607 |
. . . . 5
 

   g                  g                 |
| 64 | 47, 63 | eqtrd 2656 |
. . . 4
 

   g                         g                 |
| 65 | | mamuvs2.f |
. . . . 5
 maMul   
   |
| 66 | 25 | adantr 481 |
. . . . 5
 

 
  |
| 67 | | mamuvs2.m |
. . . . . 6
   |
| 68 | 67 | adantr 481 |
. . . . 5
 

 
  |
| 69 | 7 | adantr 481 |
. . . . 5
 

 
  |
| 70 | 30 | adantr 481 |
. . . . 5
 

 
      |
| 71 | | fconst6g 6094 |
. . . . . . . . 9
               |
| 72 | 11, 71 | syl 17 |
. . . . . . . 8
               |
| 73 | | fvex 6201 |
. . . . . . . . . 10
     |
| 74 | 39, 73 | eqeltri 2697 |
. . . . . . . . 9
 |
| 75 | | elmapg 7870 |
. . . . . . . . 9
  
          
 
               |
| 76 | 74, 9, 75 | sylancr 695 |
. . . . . . . 8
         
 
               |
| 77 | 72, 76 | mpbird 247 |
. . . . . . 7
             |
| 78 | 39, 41 | ringvcl 20204 |
. . . . . . 7
                
               |
| 79 | 51, 77, 13, 78 | syl3anc 1326 |
. . . . . 6
                |
| 80 | 79 | adantr 481 |
. . . . 5
 

                 |
| 81 | | simprl 794 |
. . . . 5
 

    |
| 82 | | simprr 796 |
. . . . 5
 

    |
| 83 | 65, 39, 41, 66, 68, 53, 69, 70, 80, 81, 82 | mamufv 20193 |
. . . 4
 

                    g                         |
| 84 | | df-ov 6653 |
. . . . 5
                                      |
| 85 | | opelxpi 5148 |
. . . . . . 7
 
        |
| 86 | 85 | adantl 482 |
. . . . . 6
 

         |
| 87 | | xpfi 8231 |
. . . . . . . . 9
 
     |
| 88 | 67, 7, 87 | syl2anc 693 |
. . . . . . . 8
     |
| 89 | 88 | adantr 481 |
. . . . . . 7
 

      |
| 90 | 39, 51, 65, 67, 6, 7, 30, 13 | mamucl 20207 |
. . . . . . . . 9
           |
| 91 | | elmapi 7879 |
. . . . . . . . 9
      
              |
| 92 | | ffn 6045 |
. . . . . . . . 9
                   |
| 93 | 90, 91, 92 | 3syl 18 |
. . . . . . . 8
         |
| 94 | 93 | adantr 481 |
. . . . . . 7
 

          |
| 95 | | df-ov 6653 |
. . . . . . . . 9
                    |
| 96 | 13 | adantr 481 |
. . . . . . . . . 10
 

 
      |
| 97 | 65, 39, 41, 66, 68, 53, 69, 70, 96, 81, 82 | mamufv 20193 |
. . . . . . . . 9
 

           g                |
| 98 | 95, 97 | syl5eqr 2670 |
. . . . . . . 8
 

              g                |
| 99 | 98 | adantr 481 |
. . . . . . 7
   
 
  
               g                |
| 100 | 89, 54, 94, 99 | ofc1 6920 |
. . . . . 6
   
 
  
                         g                 |
| 101 | 86, 100 | mpdan 702 |
. . . . 5
 

                       
g                 |
| 102 | 84, 101 | syl5eq 2668 |
. . . 4
 

                     g                 |
| 103 | 64, 83, 102 | 3eqtr4d 2666 |
. . 3
 

                                      |
| 104 | 103 | ralrimivva 2971 |
. 2
  
                                    |
| 105 | 39, 51, 65, 67, 6, 7, 30, 79 | mamucl 20207 |
. . . 4
               
    |
| 106 | | elmapi 7879 |
. . . 4
               
                       |
| 107 | | ffn 6045 |
. . . 4
                                     |
| 108 | 105, 106,
107 | 3syl 18 |
. . 3
                  |
| 109 | | fconst6g 6094 |
. . . . . . 7
               |
| 110 | 11, 109 | syl 17 |
. . . . . 6
               |
| 111 | | elmapg 7870 |
. . . . . . 7
  
          
 
               |
| 112 | 74, 88, 111 | sylancr 695 |
. . . . . 6
         
 
               |
| 113 | 110, 112 | mpbird 247 |
. . . . 5
             |
| 114 | 39, 41 | ringvcl 20204 |
. . . . 5
                    
                   |
| 115 | 51, 113, 90, 114 | syl3anc 1326 |
. . . 4
               
    |
| 116 | | elmapi 7879 |
. . . 4
                                       |
| 117 | | ffn 6045 |
. . . 4
                                     |
| 118 | 115, 116,
117 | 3syl 18 |
. . 3
                  |
| 119 | | eqfnov2 6767 |
. . 3
                                                             
                                     |
| 120 | 108, 118,
119 | syl2anc 693 |
. 2
                           


                                     |
| 121 | 104, 120 | mpbird 247 |
1
                             |