| Step | Hyp | Ref
| Expression |
| 1 | | ssrab 3680 |
. . . . 5
   
     
    |
| 2 | | simprl 794 |
. . . . . . . . 9
  

  

  
   |
| 3 | | sspwuni 4611 |
. . . . . . . . 9
 
   |
| 4 | 2, 3 | sylib 208 |
. . . . . . . 8
  

  

  
   |
| 5 | | vuniex 6954 |
. . . . . . . . 9
  |
| 6 | 5 | elpw 4164 |
. . . . . . . 8
 
 
  |
| 7 | 4, 6 | sylibr 224 |
. . . . . . 7
  

  

  
    |
| 8 | | eluni2 4440 |
. . . . . . . . . 10
 

  |
| 9 | | r19.29 3072 |
. . . . . . . . . . . . 13
      

 

   |
| 10 | | simpr 477 |
. . . . . . . . . . . . . . . 16
  
 

   |
| 11 | 10 | impr 649 |
. . . . . . . . . . . . . . 15
   
  
  |
| 12 | | elssuni 4467 |
. . . . . . . . . . . . . . . 16
    |
| 13 | 12 | adantr 481 |
. . . . . . . . . . . . . . 15
   
      |
| 14 | 11, 13 | eqsstr3d 3640 |
. . . . . . . . . . . . . 14
   
      |
| 15 | 14 | rexlimiva 3028 |
. . . . . . . . . . . . 13
     
   |
| 16 | 9, 15 | syl 17 |
. . . . . . . . . . . 12
      
   |
| 17 | 16 | ex 450 |
. . . . . . . . . . 11
 

  
    |
| 18 | 17 | ad2antll 765 |
. . . . . . . . . 10
  

  

  
 
    |
| 19 | 8, 18 | syl5bi 232 |
. . . . . . . . 9
  

  

  
      |
| 20 | 19, 4 | jctild 566 |
. . . . . . . 8
  

  

  
   
     |
| 21 | | eqss 3618 |
. . . . . . . 8
 
      |
| 22 | 20, 21 | syl6ibr 242 |
. . . . . . 7
  

  

  
      |
| 23 | | eleq2 2690 |
. . . . . . . . 9
       |
| 24 | | eqeq1 2626 |
. . . . . . . . 9
   
   |
| 25 | 23, 24 | imbi12d 334 |
. . . . . . . 8
   

       |
| 26 | 25 | elrab 3363 |
. . . . . . 7
 
  
     
      |
| 27 | 7, 22, 26 | sylanbrc 698 |
. . . . . 6
  

  

  
  

    |
| 28 | 27 | ex 450 |
. . . . 5
 
   


  
  
     |
| 29 | 1, 28 | syl5bi 232 |
. . . 4
 
    
     
     |
| 30 | 29 | alrimiv 1855 |
. . 3
 
      
     
     |
| 31 | | inss1 3833 |
. . . . . . . . 9
   |
| 32 | | simprll 802 |
. . . . . . . . . 10
  

                |
| 33 | 32 | elpwid 4170 |
. . . . . . . . 9
  

               |
| 34 | 31, 33 | syl5ss 3614 |
. . . . . . . 8
  

                 |
| 35 | | vex 3203 |
. . . . . . . . . 10
 |
| 36 | 35 | inex1 4799 |
. . . . . . . . 9
   |
| 37 | 36 | elpw 4164 |
. . . . . . . 8
   
    |
| 38 | 34, 37 | sylibr 224 |
. . . . . . 7
  

                  |
| 39 | | elin 3796 |
. . . . . . . 8
  

   |
| 40 | | simprlr 803 |
. . . . . . . . . 10
  

             
   |
| 41 | | simprrr 805 |
. . . . . . . . . 10
  

             
   |
| 42 | 40, 41 | anim12d 586 |
. . . . . . . . 9
  

                
    |
| 43 | | ineq12 3809 |
. . . . . . . . . 10
 
       |
| 44 | | inidm 3822 |
. . . . . . . . . 10
   |
| 45 | 43, 44 | syl6eq 2672 |
. . . . . . . . 9
 
     |
| 46 | 42, 45 | syl6 35 |
. . . . . . . 8
  

                
    |
| 47 | 39, 46 | syl5bi 232 |
. . . . . . 7
  

               
     |
| 48 | 38, 47 | jca 554 |
. . . . . 6
  

                 
  
     |
| 49 | 48 | ex 450 |
. . . . 5
 
     
    
                 |
| 50 | | eleq2 2690 |
. . . . . . . 8
 
   |
| 51 | | eqeq1 2626 |
. . . . . . . 8
 
   |
| 52 | 50, 51 | imbi12d 334 |
. . . . . . 7
         |
| 53 | 52 | elrab 3363 |
. . . . . 6
   
    
    |
| 54 | | eleq2 2690 |
. . . . . . . 8
 
   |
| 55 | | eqeq1 2626 |
. . . . . . . 8
 
   |
| 56 | 54, 55 | imbi12d 334 |
. . . . . . 7
         |
| 57 | 56 | elrab 3363 |
. . . . . 6
   
    
    |
| 58 | 53, 57 | anbi12i 733 |
. . . . 5
    
    
      
    
     |
| 59 | | eleq2 2690 |
. . . . . . 7
   
     |
| 60 | | eqeq1 2626 |
. . . . . . 7
   
     |
| 61 | 59, 60 | imbi12d 334 |
. . . . . 6
               |
| 62 | 61 | elrab 3363 |
. . . . 5
     
        
      |
| 63 | 49, 58, 62 | 3imtr4g 285 |
. . . 4
 
    

 
  
   
  

     |
| 64 | 63 | ralrimivv 2970 |
. . 3
 
    
   
  
      
    |
| 65 | | pwexg 4850 |
. . . . . 6
 
  |
| 66 | 65 | adantr 481 |
. . . . 5
 
    |
| 67 | | rabexg 4812 |
. . . . 5
    
    |
| 68 | 66, 67 | syl 17 |
. . . 4
 
  

    |
| 69 | | istopg 20700 |
. . . 4
   
     
 
      
     
   
  
      
  
  

      |
| 70 | 68, 69 | syl 17 |
. . 3
 
    
 
      
     
   
  
      
  
  

      |
| 71 | 30, 64, 70 | mpbir2and 957 |
. 2
 
  

    |
| 72 | | pwidg 4173 |
. . . . . 6
    |
| 73 | 72 | adantr 481 |
. . . . 5
 
    |
| 74 | | eqidd 2623 |
. . . . . 6
 
   |
| 75 | 74 | a1d 25 |
. . . . 5
 
     |
| 76 | | eleq2 2690 |
. . . . . . 7
 
   |
| 77 | | eqeq1 2626 |
. . . . . . 7
 
   |
| 78 | 76, 77 | imbi12d 334 |
. . . . . 6
         |
| 79 | 78 | elrab 3363 |
. . . . 5
   
    
    |
| 80 | 73, 75, 79 | sylanbrc 698 |
. . . 4
 
   
    |
| 81 | | elssuni 4467 |
. . . 4
   
     
    |
| 82 | 80, 81 | syl 17 |
. . 3
 

   
    |
| 83 | | ssrab2 3687 |
. . . . 5
  
    |
| 84 | | sspwuni 4611 |
. . . . 5
   
  
   
    |
| 85 | 83, 84 | mpbi 220 |
. . . 4
   
   |
| 86 | 85 | a1i 11 |
. . 3
 
    
    |
| 87 | 82, 86 | eqssd 3620 |
. 2
 
    
    |
| 88 | | istopon 20717 |
. 2
   
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     |
| 89 | 71, 87, 88 | sylanbrc 698 |
1
 
  

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