| Step | Hyp | Ref
| Expression |
| 1 | | fveq2 6191 |
. . . . . 6
 mulGrp  mulGrp    |
| 2 | | isrng.g |
. . . . . 6
mulGrp   |
| 3 | 1, 2 | syl6eqr 2674 |
. . . . 5
 mulGrp    |
| 4 | 3 | eleq1d 2686 |
. . . 4
  mulGrp  SGrp
SGrp  |
| 5 | | fvexd 6203 |
. . . . 5
       |
| 6 | | fveq2 6191 |
. . . . . 6
           |
| 7 | | isrng.b |
. . . . . 6
     |
| 8 | 6, 7 | syl6eqr 2674 |
. . . . 5
       |
| 9 | | fvexd 6203 |
. . . . . 6
 
      |
| 10 | | fveq2 6191 |
. . . . . . . 8
         |
| 11 | 10 | adantr 481 |
. . . . . . 7
 
         |
| 12 | | isrng.p |
. . . . . . 7
    |
| 13 | 11, 12 | syl6eqr 2674 |
. . . . . 6
 
     |
| 14 | | fvexd 6203 |
. . . . . . 7
          |
| 15 | | fveq2 6191 |
. . . . . . . . . 10
           |
| 16 | 15 | adantr 481 |
. . . . . . . . 9
 
           |
| 17 | 16 | adantr 481 |
. . . . . . . 8
              |
| 18 | | isrng.t |
. . . . . . . 8
     |
| 19 | 17, 18 | syl6eqr 2674 |
. . . . . . 7
         |
| 20 | | simpllr 799 |
. . . . . . . 8
       |
| 21 | | simpr 477 |
. . . . . . . . . . . . 13
      |
| 22 | | eqidd 2623 |
. . . . . . . . . . . . 13
       |
| 23 | | oveq 6656 |
. . . . . . . . . . . . . 14
         |
| 24 | 23 | ad2antlr 763 |
. . . . . . . . . . . . 13
             |
| 25 | 21, 22, 24 | oveq123d 6671 |
. . . . . . . . . . . 12
                   |
| 26 | | simpr 477 |
. . . . . . . . . . . . . 14
     |
| 27 | 26 | adantr 481 |
. . . . . . . . . . . . 13
      |
| 28 | | oveq 6656 |
. . . . . . . . . . . . . 14
         |
| 29 | 28 | adantl 482 |
. . . . . . . . . . . . 13
             |
| 30 | | oveq 6656 |
. . . . . . . . . . . . . 14
         |
| 31 | 30 | adantl 482 |
. . . . . . . . . . . . 13
             |
| 32 | 27, 29, 31 | oveq123d 6671 |
. . . . . . . . . . . 12
                    
    |
| 33 | 25, 32 | eqeq12d 2637 |
. . . . . . . . . . 11
                         
      
      |
| 34 | | oveq 6656 |
. . . . . . . . . . . . . 14
         |
| 35 | 34 | ad2antlr 763 |
. . . . . . . . . . . . 13
             |
| 36 | | eqidd 2623 |
. . . . . . . . . . . . 13
       |
| 37 | 21, 35, 36 | oveq123d 6671 |
. . . . . . . . . . . 12
                   |
| 38 | | oveq 6656 |
. . . . . . . . . . . . . 14
         |
| 39 | 38 | adantl 482 |
. . . . . . . . . . . . 13
             |
| 40 | 27, 31, 39 | oveq123d 6671 |
. . . . . . . . . . . 12
                         |
| 41 | 37, 40 | eqeq12d 2637 |
. . . . . . . . . . 11
                         
 
    
      |
| 42 | 33, 41 | anbi12d 747 |
. . . . . . . . . 10
                                                        
 
 
    
       |
| 43 | 20, 42 | raleqbidv 3152 |
. . . . . . . . 9
      
                                                  
                 |
| 44 | 20, 43 | raleqbidv 3152 |
. . . . . . . 8
      

                                           
       
                 |
| 45 | 20, 44 | raleqbidv 3152 |
. . . . . . 7
      


                                           

       
                 |
| 46 | 14, 19, 45 | sbcied2 3473 |
. . . . . 6
           ![]. ].](_drbrack.gif) 


                                           

       
                 |
| 47 | 9, 13, 46 | sbcied2 3473 |
. . . . 5
 
       ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                               

       
                 |
| 48 | 5, 8, 47 | sbcied2 3473 |
. . . 4
        ![]. ].](_drbrack.gif)      ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif) 


                                           

       
                 |
| 49 | 4, 48 | anbi12d 747 |
. . 3
   mulGrp  SGrp
      ![]. ].](_drbrack.gif)      ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                              
 SGrp            
 
 
    
        |
| 50 | | df-rng0 41875 |
. . 3
Rng   mulGrp  SGrp       ![]. ].](_drbrack.gif)      ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif) 


                                             |
| 51 | 49, 50 | elrab2 3366 |
. 2
 Rng   SGrp  

  
                       |
| 52 | | 3anass 1042 |
. 2
  SGrp            
 
 
    
       SGrp  

       
                  |
| 53 | 51, 52 | bitr4i 267 |
1
 Rng  SGrp 


  
                      |