| Step | Hyp | Ref
| Expression |
| 1 | | subrgsubg 13783 |
. . 3
 SubRing 
SubGrp    |
| 2 | | issubrg2.o |
. . . 4
     |
| 3 | 2 | subrg1cl 13785 |
. . 3
 SubRing 
  |
| 4 | | issubrg2.t |
. . . . . 6
     |
| 5 | 4 | subrgmcl 13789 |
. . . . 5
  SubRing 

    |
| 6 | 5 | 3expb 1206 |
. . . 4
  SubRing 

      |
| 7 | 6 | ralrimivva 2579 |
. . 3
 SubRing 


    |
| 8 | 1, 3, 7 | 3jca 1179 |
. 2
 SubRing 
 SubGrp   

    |
| 9 | | simpl 109 |
. . . 4
  
SubGrp 
        |
| 10 | | simpr1 1005 |
. . . . . 6
  
SubGrp 
      SubGrp    |
| 11 | | eqid 2196 |
. . . . . . 7
 ↾s   ↾s   |
| 12 | 11 | subgbas 13308 |
. . . . . 6
 SubGrp 
    ↾s     |
| 13 | 10, 12 | syl 14 |
. . . . 5
  
SubGrp 
          ↾s     |
| 14 | | eqidd 2197 |
. . . . . . 7
 SubGrp 
 ↾s   ↾s    |
| 15 | | eqidd 2197 |
. . . . . . 7
 SubGrp 
        |
| 16 | | id 19 |
. . . . . . 7
 SubGrp 
SubGrp    |
| 17 | | subgrcl 13309 |
. . . . . . 7
 SubGrp 
  |
| 18 | 14, 15, 16, 17 | ressplusgd 12806 |
. . . . . 6
 SubGrp 
      ↾s     |
| 19 | 10, 18 | syl 14 |
. . . . 5
  
SubGrp 
            ↾s     |
| 20 | 11, 4 | ressmulrg 12822 |
. . . . . 6
  SubGrp       ↾s     |
| 21 | 10, 17, 20 | syl2anc2 412 |
. . . . 5
  
SubGrp 
          ↾s     |
| 22 | 11 | subggrp 13307 |
. . . . . 6
 SubGrp 
 ↾s    |
| 23 | 10, 22 | syl 14 |
. . . . 5
  
SubGrp 
       ↾s    |
| 24 | | simpr3 1007 |
. . . . . . 7
  
SubGrp 
      

    |
| 25 | | oveq1 5929 |
. . . . . . . . 9
 
     |
| 26 | 25 | eleq1d 2265 |
. . . . . . . 8
   
     |
| 27 | | oveq2 5930 |
. . . . . . . . 9
 
     |
| 28 | 27 | eleq1d 2265 |
. . . . . . . 8
   
     |
| 29 | 26, 28 | rspc2v 2881 |
. . . . . . 7
 
           |
| 30 | 24, 29 | syl5com 29 |
. . . . . 6
  
SubGrp 
       

     |
| 31 | 30 | 3impib 1203 |
. . . . 5
    SubGrp 


   
 
   |
| 32 | | issubrg2.b |
. . . . . . . . . . 11
     |
| 33 | 32 | subgss 13304 |
. . . . . . . . . 10
 SubGrp 
  |
| 34 | 10, 33 | syl 14 |
. . . . . . . . 9
  
SubGrp 
        |
| 35 | 34 | sseld 3182 |
. . . . . . . 8
  
SubGrp 
      
   |
| 36 | 34 | sseld 3182 |
. . . . . . . 8
  
SubGrp 
          |
| 37 | 34 | sseld 3182 |
. . . . . . . 8
  
SubGrp 
      
   |
| 38 | 35, 36, 37 | 3anim123d 1330 |
. . . . . . 7
  
SubGrp 
       


    |
| 39 | 38 | imp 124 |
. . . . . 6
    SubGrp 


    
 

   |
| 40 | 32, 4 | ringass 13572 |
. . . . . . 7
  
 
 
        |
| 41 | 40 | adantlr 477 |
. . . . . 6
    SubGrp 


    
 
 
        |
| 42 | 39, 41 | syldan 282 |
. . . . 5
    SubGrp 


    
 
 
        |
| 43 | | eqid 2196 |
. . . . . . . 8
       |
| 44 | 32, 43, 4 | ringdi 13574 |
. . . . . . 7
  
 
                      |
| 45 | 44 | adantlr 477 |
. . . . . 6
    SubGrp 


    
 
                      |
| 46 | 39, 45 | syldan 282 |
. . . . 5
    SubGrp 


    
 
                      |
| 47 | 32, 43, 4 | ringdir 13575 |
. . . . . . 7
  
 
                      |
| 48 | 47 | adantlr 477 |
. . . . . 6
    SubGrp 


    
 
                      |
| 49 | 39, 48 | syldan 282 |
. . . . 5
    SubGrp 


    
 
                      |
| 50 | | simpr2 1006 |
. . . . 5
  
SubGrp 
        |
| 51 | 35 | imp 124 |
. . . . . 6
    SubGrp 


       |
| 52 | 32, 4, 2 | ringlidm 13579 |
. . . . . . 7
      |
| 53 | 52 | adantlr 477 |
. . . . . 6
    SubGrp 


        |
| 54 | 51, 53 | syldan 282 |
. . . . 5
    SubGrp 


        |
| 55 | 32, 4, 2 | ringridm 13580 |
. . . . . . 7
   
  |
| 56 | 55 | adantlr 477 |
. . . . . 6
    SubGrp 


     
  |
| 57 | 51, 56 | syldan 282 |
. . . . 5
    SubGrp 


     
  |
| 58 | 13, 19, 21, 23, 31, 42, 46, 49, 50, 54, 57 | isringd 13597 |
. . . 4
  
SubGrp 
       ↾s    |
| 59 | 34, 50 | jca 306 |
. . . 4
  
SubGrp 
          |
| 60 | 32, 2 | issubrg 13777 |
. . . 4
 SubRing   
 ↾s        |
| 61 | 9, 58, 59, 60 | syl21anbrc 1184 |
. . 3
  
SubGrp 
      SubRing    |
| 62 | 61 | ex 115 |
. 2

  SubGrp 


  
SubRing     |
| 63 | 8, 62 | impbid2 143 |
1

 SubRing   SubGrp   

     |