| Step | Hyp | Ref
| Expression |
| 1 | | fveq2 5693 |
. . . 4
 Scalar  Scalar    |
| 2 | | fveq2 5693 |
. . . . . 6
           |
| 3 | | fveq2 5693 |
. . . . . . . 8
           |
| 4 | | fveq2 5693 |
. . . . . . . . 9
           |
| 5 | 4 | sbceq1d 3056 |
. . . . . . . 8
        ![]. ].](_drbrack.gif)                                         ![]. ].](_drbrack.gif)                                      |
| 6 | 3, 5 | sbceqbid 3058 |
. . . . . . 7
        ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                         ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                      |
| 7 | 2, 6 | raleqbidv 2765 |
. . . . . 6
  
           ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                  
            ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                      |
| 8 | 2, 7 | raleqbidv 2765 |
. . . . 5
  
     
           ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                  
                  ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                      |
| 9 | 8 | ralbidv 2550 |
. . . 4
  
     
                 ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                         
     
           ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                      |
| 10 | 1, 9 | sbceqbid 3058 |
. . 3
   Scalar   ![]. ].](_drbrack.gif) 
                       ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                    Scalar   ![]. ].](_drbrack.gif) 
     
                 ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                      |
| 11 | | df-assa 14982 |
. . 3
AssAlg     Scalar   ![]. ].](_drbrack.gif)                         ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                     |
| 12 | 10, 11 | elrab2 2985 |
. 2
 AssAlg     Scalar   ![]. ].](_drbrack.gif)       
     
           ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                      |
| 13 | | scaslid 13490 |
. . . . . 6
Scalar Slot Scalar  Scalar    |
| 14 | 13 | slotex 13362 |
. . . . 5
  
Scalar    |
| 15 | | fveq2 5693 |
. . . . . . 7
 Scalar 
       Scalar     |
| 16 | 15 | raleqdv 2755 |
. . . . . 6
 Scalar 
 
                       ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                       Scalar                      ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                      |
| 17 | 16 | sbcieg 3084 |
. . . . 5
 Scalar    Scalar   ![]. ].](_drbrack.gif)       
     
           ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                  
    Scalar    
                 ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                      |
| 18 | 14, 17 | syl 14 |
. . . 4
  
  Scalar   ![]. ].](_drbrack.gif)                         ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                       Scalar                      ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                      |
| 19 | | isassa.b |
. . . . . . 7
     |
| 20 | | isassa.f |
. . . . . . . 8
Scalar   |
| 21 | 20 | fveq2i 5696 |
. . . . . . 7
       Scalar    |
| 22 | 19, 21 | eqtr2i 2260 |
. . . . . 6
   Scalar    |
| 23 | 22 | a1i 9 |
. . . . 5
  
   Scalar     |
| 24 | | isassa.v |
. . . . . . . 8
     |
| 25 | 24 | eqcomi 2242 |
. . . . . . 7
     |
| 26 | 25 | a1i 9 |
. . . . . 6
  
      |
| 27 | | vscaslid 13500 |
. . . . . . . . . 10
 Slot    
      |
| 28 | 27 | slotex 13362 |
. . . . . . . . 9
  
      |
| 29 | | isassa.s |
. . . . . . . . . . . . . . . . 17
     |
| 30 | 29 | eqeq2i 2249 |
. . . . . . . . . . . . . . . 16

      |
| 31 | 30 | biimpri 133 |
. . . . . . . . . . . . . . 15
      |
| 32 | 31 | oveqd 6096 |
. . . . . . . . . . . . . 14
             |
| 33 | 32 | oveq1d 6094 |
. . . . . . . . . . . . 13
                     |
| 34 | 31 | oveqd 6096 |
. . . . . . . . . . . . 13
                     |
| 35 | 33, 34 | eqeq12d 2253 |
. . . . . . . . . . . 12
                     
 
             |
| 36 | 31 | oveqd 6096 |
. . . . . . . . . . . . . 14
             |
| 37 | 36 | oveq2d 6095 |
. . . . . . . . . . . . 13
                     |
| 38 | 37, 34 | eqeq12d 2253 |
. . . . . . . . . . . 12
                     
               |
| 39 | 35, 38 | anbi12d 477 |
. . . . . . . . . . 11
                                                                     |
| 40 | 39 | sbcbidv 3110 |
. . . . . . . . . 10
            ![]. ].](_drbrack.gif)                                         ![]. ].](_drbrack.gif)                              |
| 41 | 40 | sbcieg 3084 |
. . . . . . . . 9
            ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                         ![]. ].](_drbrack.gif)                              |
| 42 | 28, 41 | syl 14 |
. . . . . . . 8
  
       ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                  
      ![]. ].](_drbrack.gif)                              |
| 43 | | mulrslid 13469 |
. . . . . . . . . 10
 Slot    
      |
| 44 | 43 | slotex 13362 |
. . . . . . . . 9
  
      |
| 45 | | isassa.t |
. . . . . . . . . . . . . . 15
     |
| 46 | 45 | eqeq2i 2249 |
. . . . . . . . . . . . . 14

      |
| 47 | 46 | biimpri 133 |
. . . . . . . . . . . . 13
      |
| 48 | 47 | oveqd 6096 |
. . . . . . . . . . . 12
                 |
| 49 | 47 | oveqd 6096 |
. . . . . . . . . . . . 13
             |
| 50 | 49 | oveq2d 6095 |
. . . . . . . . . . . 12
     
      
    |
| 51 | 48, 50 | eqeq12d 2253 |
. . . . . . . . . . 11
                 
 
         |
| 52 | 47 | oveqd 6096 |
. . . . . . . . . . . 12
                 |
| 53 | 52, 50 | eqeq12d 2253 |
. . . . . . . . . . 11
                 
           |
| 54 | 51, 53 | anbi12d 477 |
. . . . . . . . . 10
                                      
 
            |
| 55 | 54 | sbcieg 3084 |
. . . . . . . . 9
            ![]. ].](_drbrack.gif)                                 
 
            |
| 56 | 44, 55 | syl 14 |
. . . . . . . 8
  
       ![]. ].](_drbrack.gif)                                                |
| 57 | 42, 56 | bitrd 188 |
. . . . . . 7
  
       ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                  
   
  
       
      |
| 58 | 26, 57 | raleqbidv 2765 |
. . . . . 6
  
 
           ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                  

   
  
       
      |
| 59 | 26, 58 | raleqbidv 2765 |
. . . . 5
  
 
                 ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                    
                     |
| 60 | 23, 59 | raleqbidv 2765 |
. . . 4
  
 
   Scalar                      ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                    

                     |
| 61 | 18, 60 | bitrd 188 |
. . 3
  
  Scalar   ![]. ].](_drbrack.gif)                         ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                    

                     |
| 62 | 61 | pm5.32i 458 |
. 2
     Scalar   ![]. ].](_drbrack.gif)       
     
           ![]. ].](_drbrack.gif)       ![]. ].](_drbrack.gif)                                   
 
  

                     |
| 63 | | elin 3412 |
. . 3
       |
| 64 | 63 | anbi1i 462 |
. 2
    


         
    
   
 
 


         
    
      |
| 65 | 12, 62, 64 | 3bitri 206 |
1
 AssAlg             
 
            |