| Step | Hyp | Ref
| Expression |
| 1 | | subrngsubg 13760 |
. . 3
 SubRng 
SubGrp    |
| 2 | | issubrng2.t |
. . . . . 6
     |
| 3 | 2 | subrngmcl 13765 |
. . . . 5
  SubRng 
 
   |
| 4 | 3 | 3expb 1206 |
. . . 4
  SubRng  
 
    |
| 5 | 4 | ralrimivva 2579 |
. . 3
 SubRng 


    |
| 6 | 1, 5 | jca 306 |
. 2
 SubRng 
 SubGrp   

    |
| 7 | | simpl 109 |
. . . 4
  Rng 
SubGrp 


    Rng |
| 8 | | simprl 529 |
. . . . . 6
  Rng 
SubGrp 


    SubGrp    |
| 9 | | eqid 2196 |
. . . . . . 7
 ↾s   ↾s   |
| 10 | 9 | subgbas 13308 |
. . . . . 6
 SubGrp 
    ↾s     |
| 11 | 8, 10 | syl 14 |
. . . . 5
  Rng 
SubGrp 


        ↾s     |
| 12 | | eqidd 2197 |
. . . . . . 7
 SubGrp 
 ↾s   ↾s    |
| 13 | | eqidd 2197 |
. . . . . . 7
 SubGrp 
        |
| 14 | | id 19 |
. . . . . . 7
 SubGrp 
SubGrp    |
| 15 | | subgrcl 13309 |
. . . . . . 7
 SubGrp 
  |
| 16 | 12, 13, 14, 15 | ressplusgd 12806 |
. . . . . 6
 SubGrp 
      ↾s     |
| 17 | 8, 16 | syl 14 |
. . . . 5
  Rng 
SubGrp 


          ↾s     |
| 18 | 9, 2 | ressmulrg 12822 |
. . . . . 6
  SubGrp       ↾s     |
| 19 | 8, 15, 18 | syl2anc2 412 |
. . . . 5
  Rng 
SubGrp 


        ↾s     |
| 20 | | rngabl 13491 |
. . . . . 6
 Rng   |
| 21 | 9 | subgabl 13462 |
. . . . . 6
  SubGrp  
 ↾s    |
| 22 | 20, 8, 21 | syl2an2r 595 |
. . . . 5
  Rng 
SubGrp 


     ↾s    |
| 23 | | simprr 531 |
. . . . . . 7
  Rng 
SubGrp 


    

    |
| 24 | | oveq1 5929 |
. . . . . . . . 9
 
     |
| 25 | 24 | eleq1d 2265 |
. . . . . . . 8
   
     |
| 26 | | oveq2 5930 |
. . . . . . . . 9
 
     |
| 27 | 26 | eleq1d 2265 |
. . . . . . . 8
   
     |
| 28 | 25, 27 | rspc2v 2881 |
. . . . . . 7
 
           |
| 29 | 23, 28 | syl5com 29 |
. . . . . 6
  Rng 
SubGrp 


     

     |
| 30 | 29 | 3impib 1203 |
. . . . 5
   Rng 
SubGrp  


  
     |
| 31 | | issubrng2.b |
. . . . . . . . . . 11
     |
| 32 | 31 | subgss 13304 |
. . . . . . . . . 10
 SubGrp 
  |
| 33 | 8, 32 | syl 14 |
. . . . . . . . 9
  Rng 
SubGrp 


      |
| 34 | 33 | sseld 3182 |
. . . . . . . 8
  Rng 
SubGrp 


    
   |
| 35 | 33 | sseld 3182 |
. . . . . . . 8
  Rng 
SubGrp 


        |
| 36 | 33 | sseld 3182 |
. . . . . . . 8
  Rng 
SubGrp 


    
   |
| 37 | 34, 35, 36 | 3anim123d 1330 |
. . . . . . 7
  Rng 
SubGrp 


     


    |
| 38 | 37 | imp 124 |
. . . . . 6
   Rng 
SubGrp  


   
  
   |
| 39 | 31, 2 | rngass 13495 |
. . . . . . 7
  Rng 
 
 
        |
| 40 | 39 | adantlr 477 |
. . . . . 6
   Rng 
SubGrp  


   
    
       |
| 41 | 38, 40 | syldan 282 |
. . . . 5
   Rng 
SubGrp  


   
    
       |
| 42 | | eqid 2196 |
. . . . . . . 8
       |
| 43 | 31, 42, 2 | rngdi 13496 |
. . . . . . 7
  Rng 
 
                      |
| 44 | 43 | adantlr 477 |
. . . . . 6
   Rng 
SubGrp  


   
  
  
                  |
| 45 | 38, 44 | syldan 282 |
. . . . 5
   Rng 
SubGrp  


   
  
  
                  |
| 46 | 31, 42, 2 | rngdir 13497 |
. . . . . . 7
  Rng 
 
                      |
| 47 | 46 | adantlr 477 |
. . . . . 6
   Rng 
SubGrp  


   
                        |
| 48 | 38, 47 | syldan 282 |
. . . . 5
   Rng 
SubGrp  


   
                        |
| 49 | 11, 17, 19, 22, 30, 41, 45, 48 | isrngd 13509 |
. . . 4
  Rng 
SubGrp 


     ↾s  Rng |
| 50 | 31 | issubrng 13755 |
. . . 4
 SubRng   Rng 
↾s  Rng    |
| 51 | 7, 49, 33, 50 | syl3anbrc 1183 |
. . 3
  Rng 
SubGrp 


    SubRng    |
| 52 | 51 | ex 115 |
. 2
 Rng   SubGrp 


  
SubRng     |
| 53 | 6, 52 | impbid2 143 |
1
 Rng  SubRng   SubGrp  


     |