| Step | Hyp | Ref
| Expression |
| 1 | | bren 6806 |
. . . . . . 7

       |
| 2 | 1 | biimpi 120 |
. . . . . 6
        |
| 3 | 2 | ad2antrr 488 |
. . . . 5
  
WOmni
   
      |
| 4 | | fveq1 5557 |
. . . . . . . . . 10
               |
| 5 | 4 | eqeq1d 2205 |
. . . . . . . . 9
       
         |
| 6 | 5 | ralbidv 2497 |
. . . . . . . 8
    
   

         |
| 7 | 6 | dcbid 839 |
. . . . . . 7
   DECID 
   
DECID           |
| 8 | | iswomnimap 7232 |
. . . . . . . . 9
 WOmni  WOmni    DECID 
       |
| 9 | 8 | ibi 176 |
. . . . . . . 8
 WOmni    DECID 
      |
| 10 | 9 | ad3antlr 493 |
. . . . . . 7
    WOmni
       
   DECID 
      |
| 11 | | simpr 110 |
. . . . . . . . . . 11
  
WOmni
       |
| 12 | | 2onn 6579 |
. . . . . . . . . . . . 13
 |
| 13 | | relen 6803 |
. . . . . . . . . . . . . 14
 |
| 14 | 13 | brrelex2i 4707 |
. . . . . . . . . . . . 13
   |
| 15 | | elmapg 6720 |
. . . . . . . . . . . . 13
 
           |
| 16 | 12, 14, 15 | sylancr 414 |
. . . . . . . . . . . 12
   
       |
| 17 | 16 | ad2antrr 488 |
. . . . . . . . . . 11
  
WOmni
             |
| 18 | 11, 17 | mpbid 147 |
. . . . . . . . . 10
  
WOmni
         |
| 19 | 18 | adantr 276 |
. . . . . . . . 9
    WOmni
       
      |
| 20 | | f1of 5504 |
. . . . . . . . . 10
    
      |
| 21 | 20 | adantl 277 |
. . . . . . . . 9
    WOmni
       
      |
| 22 | | fco 5423 |
. . . . . . . . 9
                   |
| 23 | 19, 21, 22 | syl2anc 411 |
. . . . . . . 8
    WOmni
       
        |
| 24 | | simpllr 534 |
. . . . . . . . 9
    WOmni
       
WOmni |
| 25 | | elmapg 6720 |
. . . . . . . . 9
 
WOmni     
         |
| 26 | 12, 24, 25 | sylancr 414 |
. . . . . . . 8
    WOmni
       
    
         |
| 27 | 23, 26 | mpbird 167 |
. . . . . . 7
    WOmni
       
      |
| 28 | 7, 10, 27 | rspcdva 2873 |
. . . . . 6
    WOmni
       
DECID          |
| 29 | | f1ofn 5505 |
. . . . . . . . . . . 12
    
  |
| 30 | 29 | ad3antlr 493 |
. . . . . . . . . . 11
     
WOmni         
          |
| 31 | | f1ocnv 5517 |
. . . . . . . . . . . . . 14
    
       |
| 32 | | f1of 5504 |
. . . . . . . . . . . . . 14
             |
| 33 | 31, 32 | syl 14 |
. . . . . . . . . . . . 13
    
       |
| 34 | 33 | ad3antlr 493 |
. . . . . . . . . . . 12
     
WOmni         
               |
| 35 | | simpr 110 |
. . . . . . . . . . . 12
     
WOmni         
          |
| 36 | 34, 35 | ffvelcdmd 5698 |
. . . . . . . . . . 11
     
WOmni         
               |
| 37 | | fvco2 5630 |
. . . . . . . . . . 11
                                  |
| 38 | 30, 36, 37 | syl2anc 411 |
. . . . . . . . . 10
     
WOmni         
                                  |
| 39 | | fveqeq2 5567 |
. . . . . . . . . . 11
            
              |
| 40 | | simplr 528 |
. . . . . . . . . . 11
     
WOmni         
        
        |
| 41 | 39, 40, 36 | rspcdva 2873 |
. . . . . . . . . 10
     
WOmni         
                     |
| 42 | | f1ocnvfv2 5825 |
. . . . . . . . . . . 12
     
            |
| 43 | 42 | fveq2d 5562 |
. . . . . . . . . . 11
     
                    |
| 44 | 43 | ad4ant24 516 |
. . . . . . . . . 10
     
WOmni         
                           |
| 45 | 38, 41, 44 | 3eqtr3rd 2238 |
. . . . . . . . 9
     
WOmni         
              |
| 46 | 45 | ralrimiva 2570 |
. . . . . . . 8
     WOmni         
       
      |
| 47 | 29 | ad3antlr 493 |
. . . . . . . . . . 11
     
WOmni         
        |
| 48 | | simpr 110 |
. . . . . . . . . . 11
     
WOmni         
        |
| 49 | | fvco2 5630 |
. . . . . . . . . . 11
 
                 |
| 50 | 47, 48, 49 | syl2anc 411 |
. . . . . . . . . 10
     
WOmni         
                      |
| 51 | | fveqeq2 5567 |
. . . . . . . . . . 11
         
           |
| 52 | | simplr 528 |
. . . . . . . . . . 11
     
WOmni         
      
      |
| 53 | 21 | ffvelcdmda 5697 |
. . . . . . . . . . . 12
     WOmni                |
| 54 | 53 | adantlr 477 |
. . . . . . . . . . 11
     
WOmni         
            |
| 55 | 51, 52, 54 | rspcdva 2873 |
. . . . . . . . . 10
     
WOmni         
                |
| 56 | 50, 55 | eqtrd 2229 |
. . . . . . . . 9
     
WOmni         
              |
| 57 | 56 | ralrimiva 2570 |
. . . . . . . 8
     WOmni         
     
        |
| 58 | 46, 57 | impbida 596 |
. . . . . . 7
    WOmni
       
 
     
        |
| 59 | 58 | dcbid 839 |
. . . . . 6
    WOmni
       
DECID

      DECID         |
| 60 | 28, 59 | mpbid 147 |
. . . . 5
    WOmni
       
DECID        |
| 61 | 3, 60 | exlimddv 1913 |
. . . 4
  
WOmni
   DECID 
      |
| 62 | 61 | ralrimiva 2570 |
. . 3
 
WOmni    DECID 
      |
| 63 | | iswomnimap 7232 |
. . . . 5
 
WOmni    DECID 
       |
| 64 | 14, 63 | syl 14 |
. . . 4
 
WOmni    DECID 
       |
| 65 | 64 | adantr 276 |
. . 3
 
WOmni  WOmni
   DECID 
       |
| 66 | 62, 65 | mpbird 167 |
. 2
 
WOmni WOmni |
| 67 | 66 | ex 115 |
1
 
WOmni WOmni  |