| Step | Hyp | Ref
| Expression |
| 1 | | prdsringd.y |
. . 3
  s  |
| 2 | | prdsringd.i |
. . 3
   |
| 3 | | prdsringd.s |
. . 3
   |
| 4 | | prdsringd.r |
. . . 4
       |
| 5 | | ringgrp 18552 |
. . . . 5

  |
| 6 | 5 | ssriv 3607 |
. . . 4
 |
| 7 | | fss 6056 |
. . . 4
             |
| 8 | 4, 6, 7 | sylancl 694 |
. . 3
       |
| 9 | 1, 2, 3, 8 | prdsgrpd 17525 |
. 2
   |
| 10 | | eqid 2622 |
. . . 4
  s mulGrp
    s mulGrp
   |
| 11 | | mgpf 18559 |
. . . . 5
mulGrp       |
| 12 | | fco2 6059 |
. . . . 5
  mulGrp           mulGrp        |
| 13 | 11, 4, 12 | sylancr 695 |
. . . 4
 mulGrp
       |
| 14 | 10, 2, 3, 13 | prdsmndd 17323 |
. . 3
   s mulGrp
    |
| 15 | | eqidd 2623 |
. . . 4
    mulGrp      mulGrp     |
| 16 | | eqid 2622 |
. . . . . 6
mulGrp  mulGrp   |
| 17 | | ffn 6045 |
. . . . . . 7
       |
| 18 | 4, 17 | syl 17 |
. . . . . 6
   |
| 19 | 1, 16, 10, 2, 3, 18 | prdsmgp 18610 |
. . . . 5
     mulGrp        s mulGrp
     mulGrp       s mulGrp
      |
| 20 | 19 | simpld 475 |
. . . 4
    mulGrp        s mulGrp
     |
| 21 | 19 | simprd 479 |
. . . . 5
   mulGrp       s mulGrp
     |
| 22 | 21 | oveqdr 6674 |
. . . 4
 
    mulGrp  
   mulGrp         mulGrp           s mulGrp
       |
| 23 | 15, 20, 22 | mndpropd 17316 |
. . 3
  mulGrp 
  s mulGrp      |
| 24 | 14, 23 | mpbird 247 |
. 2
 mulGrp    |
| 25 | 4 | adantr 481 |
. . . . . . . . 9
 
    
   
     
      |
| 26 | 25 | ffvelrnda 6359 |
. . . . . . . 8
           
             |
| 27 | | eqid 2622 |
. . . . . . . . 9
         |
| 28 | 3 | adantr 481 |
. . . . . . . . . 10
 
    
   
     
  |
| 29 | 28 | adantr 481 |
. . . . . . . . 9
           
         |
| 30 | 2 | adantr 481 |
. . . . . . . . . 10
 
    
   
     
  |
| 31 | 30 | adantr 481 |
. . . . . . . . 9
           
         |
| 32 | 18 | adantr 481 |
. . . . . . . . . 10
 
    
   
     
  |
| 33 | 32 | adantr 481 |
. . . . . . . . 9
           
         |
| 34 | | simplr1 1103 |
. . . . . . . . 9
           
             |
| 35 | | simpr 477 |
. . . . . . . . 9
           
         |
| 36 | 1, 27, 29, 31, 33, 34, 35 | prdsbasprj 16132 |
. . . . . . . 8
           
                     |
| 37 | | simpr2 1068 |
. . . . . . . . . 10
 
    
   
     
      |
| 38 | 37 | adantr 481 |
. . . . . . . . 9
           
             |
| 39 | 1, 27, 29, 31, 33, 38, 35 | prdsbasprj 16132 |
. . . . . . . 8
           
                     |
| 40 | | simpr3 1069 |
. . . . . . . . . 10
 
    
   
     
      |
| 41 | 40 | adantr 481 |
. . . . . . . . 9
           
             |
| 42 | 1, 27, 29, 31, 33, 41, 35 | prdsbasprj 16132 |
. . . . . . . 8
           
                     |
| 43 | | eqid 2622 |
. . . . . . . . 9
                 |
| 44 | | eqid 2622 |
. . . . . . . . 9
               |
| 45 | | eqid 2622 |
. . . . . . . . 9
                 |
| 46 | 43, 44, 45 | ringdi 18566 |
. . . . . . . 8
                              
             
                                                                                        |
| 47 | 26, 36, 39, 42, 46 | syl13anc 1328 |
. . . . . . 7
           
                                                                                               |
| 48 | | eqid 2622 |
. . . . . . . . 9
       |
| 49 | 1, 27, 29, 31, 33, 38, 41, 48, 35 | prdsplusgfval 16134 |
. . . . . . . 8
           
                                       |
| 50 | 49 | oveq2d 6666 |
. . . . . . 7
           
                                                                       |
| 51 | | eqid 2622 |
. . . . . . . . 9
         |
| 52 | 1, 27, 29, 31, 33, 34, 38, 51, 35 | prdsmulrfval 16136 |
. . . . . . . 8
           
                                         |
| 53 | 1, 27, 29, 31, 33, 34, 41, 51, 35 | prdsmulrfval 16136 |
. . . . . . . 8
           
                                         |
| 54 | 52, 53 | oveq12d 6668 |
. . . . . . 7
           
                                                                                               |
| 55 | 47, 50, 54 | 3eqtr4d 2666 |
. . . . . 6
           
                                                                       |
| 56 | 55 | mpteq2dva 4744 |
. . . . 5
 
    
   
     

                                                                   |
| 57 | | simpr1 1067 |
. . . . . 6
 
    
   
     
      |
| 58 | | ringmnd 18556 |
. . . . . . . . . 10

  |
| 59 | 58 | ssriv 3607 |
. . . . . . . . 9
 |
| 60 | | fss 6056 |
. . . . . . . . 9
             |
| 61 | 4, 59, 60 | sylancl 694 |
. . . . . . . 8
       |
| 62 | 61 | adantr 481 |
. . . . . . 7
 
    
   
     
      |
| 63 | 1, 27, 48, 28, 30, 62, 37, 40 | prdsplusgcl 17321 |
. . . . . 6
 
    
   
     
  
          |
| 64 | 1, 27, 28, 30, 32, 57, 63, 51 | prdsmulrval 16135 |
. . . . 5
 
    
   
     
                                              |
| 65 | 1, 27, 51, 28, 30, 25, 57, 37 | prdsmulrcl 18611 |
. . . . . 6
 
    
   
     
              |
| 66 | 1, 27, 51, 28, 30, 25, 57, 40 | prdsmulrcl 18611 |
. . . . . 6
 
    
   
     
              |
| 67 | 1, 27, 28, 30, 32, 65, 66, 48 | prdsplusgval 16133 |
. . . . 5
 
    
   
     
                                                              |
| 68 | 56, 64, 67 | 3eqtr4d 2666 |
. . . 4
 
    
   
     
                                        |
| 69 | 43, 44, 45 | ringdir 18567 |
. . . . . . . 8
                              
             
                                                                                        |
| 70 | 26, 36, 39, 42, 69 | syl13anc 1328 |
. . . . . . 7
           
                                                                                               |
| 71 | 1, 27, 29, 31, 33, 34, 38, 48, 35 | prdsplusgfval 16134 |
. . . . . . . 8
           
                                       |
| 72 | 71 | oveq1d 6665 |
. . . . . . 7
           
                                                                       |
| 73 | 1, 27, 29, 31, 33, 38, 41, 51, 35 | prdsmulrfval 16136 |
. . . . . . . 8
           
                                         |
| 74 | 53, 73 | oveq12d 6668 |
. . . . . . 7
           
                                                                                               |
| 75 | 70, 72, 74 | 3eqtr4d 2666 |
. . . . . 6
           
                                                                       |
| 76 | 75 | mpteq2dva 4744 |
. . . . 5
 
    
   
     

                                                                   |
| 77 | 1, 27, 48, 28, 30, 62, 57, 37 | prdsplusgcl 17321 |
. . . . . 6
 
    
   
     
  
          |
| 78 | 1, 27, 28, 30, 32, 77, 40, 51 | prdsmulrval 16135 |
. . . . 5
 
    
   
     
                                              |
| 79 | 1, 27, 51, 28, 30, 25, 37, 40 | prdsmulrcl 18611 |
. . . . . 6
 
    
   
     
              |
| 80 | 1, 27, 28, 30, 32, 66, 79, 48 | prdsplusgval 16133 |
. . . . 5
 
    
   
     
                                                              |
| 81 | 76, 78, 80 | 3eqtr4d 2666 |
. . . 4
 
    
   
     
                                        |
| 82 | 68, 81 | jca 554 |
. . 3
 
    
   
     
                                                                                |
| 83 | 82 | ralrimivvva 2972 |
. 2
       
     
                                                                                     |
| 84 | 27, 16, 48, 51 | isring 18551 |
. 2


mulGrp                                                                                                     |
| 85 | 9, 24, 83, 84 | syl3anbrc 1246 |
1
   |