| Step | Hyp | Ref
| Expression |
| 1 | | fvoveq1 5945 |
. . . . . 6
          
    |
| 2 | | oveq1 5929 |
. . . . . 6
 
             |
| 3 | 1, 2 | eqeq12d 2211 |
. . . . 5
     
       
      
        |
| 4 | 3 | imbi2d 230 |
. . . 4
     MndHom  
      
         MndHom  
      
         |
| 5 | | fvoveq1 5945 |
. . . . . 6
          
    |
| 6 | | oveq1 5929 |
. . . . . 6
 
             |
| 7 | 5, 6 | eqeq12d 2211 |
. . . . 5
     
       
      
        |
| 8 | 7 | imbi2d 230 |
. . . 4
     MndHom  
      
         MndHom  
      
         |
| 9 | | fvoveq1 5945 |
. . . . . 6
                   |
| 10 | | oveq1 5929 |
. . . . . 6
   
               |
| 11 | 9, 10 | eqeq12d 2211 |
. . . . 5
       
       
          
        |
| 12 | 11 | imbi2d 230 |
. . . 4
       MndHom  
      
         MndHom  
          
         |
| 13 | | fvoveq1 5945 |
. . . . . 6
               |
| 14 | | oveq1 5929 |
. . . . . 6
 
             |
| 15 | 13, 14 | eqeq12d 2211 |
. . . . 5
     
       
      
        |
| 16 | 15 | imbi2d 230 |
. . . 4
     MndHom  
      
         MndHom  
      
         |
| 17 | | eqid 2196 |
. . . . . . 7
         |
| 18 | | eqid 2196 |
. . . . . . 7
         |
| 19 | 17, 18 | mhm0 13100 |
. . . . . 6
  MndHom 
              |
| 20 | 19 | adantr 276 |
. . . . 5
   MndHom                 |
| 21 | | mhmmulg.b |
. . . . . . . 8
     |
| 22 | | mhmmulg.s |
. . . . . . . 8
.g   |
| 23 | 21, 17, 22 | mulg0 13255 |
. . . . . . 7
 
       |
| 24 | 23 | adantl 277 |
. . . . . 6
   MndHom   
       |
| 25 | 24 | fveq2d 5562 |
. . . . 5
   MndHom                   |
| 26 | | eqid 2196 |
. . . . . . . 8
         |
| 27 | 21, 26 | mhmf 13097 |
. . . . . . 7
  MndHom 
          |
| 28 | 27 | ffvelcdmda 5697 |
. . . . . 6
   MndHom             |
| 29 | | mhmmulg.t |
. . . . . . 7
.g   |
| 30 | 26, 18, 29 | mulg0 13255 |
. . . . . 6
        
            |
| 31 | 28, 30 | syl 14 |
. . . . 5
   MndHom   
           |
| 32 | 20, 25, 31 | 3eqtr4d 2239 |
. . . 4
   MndHom                 |
| 33 | | oveq1 5929 |
. . . . . . 7
            
                                    |
| 34 | | mhmrcl1 13095 |
. . . . . . . . . . . 12
  MndHom 
  |
| 35 | 34 | ad2antrr 488 |
. . . . . . . . . . 11
    MndHom 

   |
| 36 | | simpr 110 |
. . . . . . . . . . 11
    MndHom 

   |
| 37 | | simplr 528 |
. . . . . . . . . . 11
    MndHom 

   |
| 38 | | eqid 2196 |
. . . . . . . . . . . 12
       |
| 39 | 21, 22, 38 | mulgnn0p1 13263 |
. . . . . . . . . . 11
 
                |
| 40 | 35, 36, 37, 39 | syl3anc 1249 |
. . . . . . . . . 10
    MndHom 

                |
| 41 | 40 | fveq2d 5562 |
. . . . . . . . 9
    MndHom 

                        |
| 42 | | simpll 527 |
. . . . . . . . . 10
    MndHom 

  MndHom    |
| 43 | 34 | ad2antrr 488 |
. . . . . . . . . . . 12
    MndHom 

   |
| 44 | | simplr 528 |
. . . . . . . . . . . 12
    MndHom 

   |
| 45 | | simpr 110 |
. . . . . . . . . . . 12
    MndHom 

   |
| 46 | 21, 22 | mulgnn0cl 13268 |
. . . . . . . . . . . 12
 
 
   |
| 47 | 43, 44, 45, 46 | syl3anc 1249 |
. . . . . . . . . . 11
    MndHom 

     |
| 48 | 47 | an32s 568 |
. . . . . . . . . 10
    MndHom 

     |
| 49 | | eqid 2196 |
. . . . . . . . . . 11
       |
| 50 | 21, 38, 49 | mhmlin 13099 |
. . . . . . . . . 10
   MndHom  

     
  
         
              |
| 51 | 42, 48, 37, 50 | syl3anc 1249 |
. . . . . . . . 9
    MndHom 

                                 |
| 52 | 41, 51 | eqtrd 2229 |
. . . . . . . 8
    MndHom 

             
              |
| 53 | | mhmrcl2 13096 |
. . . . . . . . . 10
  MndHom 
  |
| 54 | 53 | ad2antrr 488 |
. . . . . . . . 9
    MndHom 

   |
| 55 | 28 | adantr 276 |
. . . . . . . . 9
    MndHom 

           |
| 56 | 26, 29, 49 | mulgnn0p1 13263 |
. . . . . . . . 9
 
           
                        |
| 57 | 54, 36, 55, 56 | syl3anc 1249 |
. . . . . . . 8
    MndHom 

          
                 |
| 58 | 52, 57 | eqeq12d 2211 |
. . . . . . 7
    MndHom 

                                                       |
| 59 | 33, 58 | imbitrrid 156 |
. . . . . 6
    MndHom 

             
          
        |
| 60 | 59 | expcom 116 |
. . . . 5

   MndHom       
                            |
| 61 | 60 | a2d 26 |
. . . 4

    MndHom 
    
            MndHom 
                     |
| 62 | 4, 8, 12, 16, 32, 61 | nn0ind 9440 |
. . 3

   MndHom                  |
| 63 | 62 | 3impib 1203 |
. 2
 
 MndHom                 |
| 64 | 63 | 3com12 1209 |
1
   MndHom                 |