| Step | Hyp | Ref
| Expression |
| 1 | | eqid 2196 |
. . . . . 6
         |
| 2 | | eqid 2196 |
. . . . . 6
         |
| 3 | 1, 2 | mhmf 13097 |
. . . . 5
  MndHom 
              |
| 4 | 3 | adantr 276 |
. . . 4
   MndHom   MndHom  
              |
| 5 | 4 | ffnd 5408 |
. . 3
   MndHom   MndHom  
      |
| 6 | 1, 2 | mhmf 13097 |
. . . . 5
  MndHom 
              |
| 7 | 6 | adantl 277 |
. . . 4
   MndHom   MndHom  
              |
| 8 | 7 | ffnd 5408 |
. . 3
   MndHom   MndHom  
      |
| 9 | | fndmin 5669 |
. . 3
           
                 |
| 10 | 5, 8, 9 | syl2anc 411 |
. 2
   MndHom   MndHom  
                  |
| 11 | | ssrab2 3268 |
. . . 4
                   |
| 12 | 11 | a1i 9 |
. . 3
   MndHom   MndHom  
                    |
| 13 | | fveq2 5558 |
. . . . 5
                   |
| 14 | | fveq2 5558 |
. . . . 5
                   |
| 15 | 13, 14 | eqeq12d 2211 |
. . . 4
             
                   |
| 16 | | mhmrcl1 13095 |
. . . . . 6
  MndHom 
  |
| 17 | 16 | adantr 276 |
. . . . 5
   MndHom   MndHom  
  |
| 18 | | eqid 2196 |
. . . . . 6
         |
| 19 | 1, 18 | mndidcl 13071 |
. . . . 5
           |
| 20 | 17, 19 | syl 14 |
. . . 4
   MndHom   MndHom  
          |
| 21 | | eqid 2196 |
. . . . . . 7
         |
| 22 | 18, 21 | mhm0 13100 |
. . . . . 6
  MndHom 
              |
| 23 | 22 | adantr 276 |
. . . . 5
   MndHom   MndHom  
              |
| 24 | 18, 21 | mhm0 13100 |
. . . . . 6
  MndHom 
              |
| 25 | 24 | adantl 277 |
. . . . 5
   MndHom   MndHom  
              |
| 26 | 23, 25 | eqtr4d 2232 |
. . . 4
   MndHom   MndHom  
                  |
| 27 | 15, 20, 26 | elrabd 2922 |
. . 3
   MndHom   MndHom  
                    |
| 28 | | fveq2 5558 |
. . . . . . . . . . 11
                         |
| 29 | | fveq2 5558 |
. . . . . . . . . . 11
                         |
| 30 | 28, 29 | eqeq12d 2211 |
. . . . . . . . . 10
                
                         |
| 31 | 17 | ad2antrr 488 |
. . . . . . . . . . 11
     MndHom   MndHom       
                           |
| 32 | | simplrl 535 |
. . . . . . . . . . 11
     MndHom   MndHom       
                               |
| 33 | | simprl 529 |
. . . . . . . . . . 11
     MndHom   MndHom       
                               |
| 34 | | eqid 2196 |
. . . . . . . . . . . 12
       |
| 35 | 1, 34 | mndcl 13064 |
. . . . . . . . . . 11
 
                      |
| 36 | 31, 32, 33, 35 | syl3anc 1249 |
. . . . . . . . . 10
     MndHom   MndHom       
                                      |
| 37 | | simplll 533 |
. . . . . . . . . . . 12
     MndHom   MndHom       
                          MndHom    |
| 38 | | eqid 2196 |
. . . . . . . . . . . . 13
       |
| 39 | 1, 34, 38 | mhmlin 13099 |
. . . . . . . . . . . 12
   MndHom     
    
                            |
| 40 | 37, 32, 33, 39 | syl3anc 1249 |
. . . . . . . . . . 11
     MndHom   MndHom       
                                                     |
| 41 | | simpllr 534 |
. . . . . . . . . . . . 13
     MndHom   MndHom       
                          MndHom    |
| 42 | 1, 34, 38 | mhmlin 13099 |
. . . . . . . . . . . . 13
   MndHom     
    
                            |
| 43 | 41, 32, 33, 42 | syl3anc 1249 |
. . . . . . . . . . . 12
     MndHom   MndHom       
                                                     |
| 44 | | simplrr 536 |
. . . . . . . . . . . . 13
     MndHom   MndHom       
                                   |
| 45 | | simprr 531 |
. . . . . . . . . . . . 13
     MndHom   MndHom       
                                   |
| 46 | 44, 45 | oveq12d 5940 |
. . . . . . . . . . . 12
     MndHom   MndHom       
                                                         |
| 47 | 43, 46 | eqtr4d 2232 |
. . . . . . . . . . 11
     MndHom   MndHom       
                                                     |
| 48 | 40, 47 | eqtr4d 2232 |
. . . . . . . . . 10
     MndHom   MndHom       
                                                 |
| 49 | 30, 36, 48 | elrabd 2922 |
. . . . . . . . 9
     MndHom   MndHom       
                                                |
| 50 | 49 | expr 375 |
. . . . . . . 8
     MndHom   MndHom       
                                                |
| 51 | 50 | ralrimiva 2570 |
. . . . . . 7
    MndHom 
 MndHom                                                         |
| 52 | | fveq2 5558 |
. . . . . . . . 9
           |
| 53 | | fveq2 5558 |
. . . . . . . . 9
           |
| 54 | 52, 53 | eqeq12d 2211 |
. . . . . . . 8
         
           |
| 55 | 54 | ralrab 2925 |
. . . . . . 7
 
                                                                          |
| 56 | 51, 55 | sylibr 134 |
. . . . . 6
    MndHom 
 MndHom                                                        |
| 57 | 56 | expr 375 |
. . . . 5
    MndHom 
 MndHom                 
                                      |
| 58 | 57 | ralrimiva 2570 |
. . . 4
   MndHom   MndHom  
              
                                       |
| 59 | | fveq2 5558 |
. . . . . 6
           |
| 60 | | fveq2 5558 |
. . . . . 6
           |
| 61 | 59, 60 | eqeq12d 2211 |
. . . . 5
         
           |
| 62 | 61 | ralrab 2925 |
. . . 4
 
                                                  
              
                                       |
| 63 | 58, 62 | sylibr 134 |
. . 3
   MndHom   MndHom  
                                                      |
| 64 | 1, 18, 34 | issubm 13104 |
. . . 4
                SubMnd 
                                     
                                                       |
| 65 | 17, 64 | syl 14 |
. . 3
   MndHom   MndHom  
               SubMnd 
                                     
                                                       |
| 66 | 12, 27, 63, 65 | mpbir3and 1182 |
. 2
   MndHom   MndHom  
              SubMnd    |
| 67 | 10, 66 | eqeltrd 2273 |
1
   MndHom   MndHom  
  SubMnd    |