Proof of Theorem omsmolem
| Step | Hyp | Ref
| Expression |
| 1 | | eleq2 1150 |
. . 3
     |
| 2 | | fveq2 2832 |
. . . 4
           |
| 3 | 2 | eleq2d 1156 |
. . 3
                     |
| 4 | 1, 3 | imbi12d 474 |
. 2
            
            |
| 5 | | eleq2 1150 |
. . 3
     |
| 6 | | fveq2 2832 |
. . . 4
           |
| 7 | 6 | eleq2d 1156 |
. . 3
                     |
| 8 | 5, 7 | imbi12d 474 |
. 2
                         |
| 9 | | eleq2 1150 |
. . 3
     |
| 10 | | fveq2 2832 |
. . . 4
           |
| 11 | 10 | eleq2d 1156 |
. . 3
                     |
| 12 | 9, 11 | imbi12d 474 |
. 2
                         |
| 13 | | noel 1711 |
. . . 4
 |
| 14 | 13 | pm2.21i 73 |
. . 3
           |
| 15 | 14 | a1i 7 |
. 2
  
     
                     |
| 16 | | fveq2 2832 |
. . . . . . . . . . . . 13
           |
| 17 | | suceq 2288 |
. . . . . . . . . . . . . 14

  |
| 18 | 17 | fveq2d 2836 |
. . . . . . . . . . . . 13
           |
| 19 | 16, 18 | eleq12d 1157 |
. . . . . . . . . . . 12
             
  
    |
| 20 | 19 | rcla4v 1402 |
. . . . . . . . . . 11
     
  
     
  
    |
| 21 | 20 | imp 277 |
. . . . . . . . . 10
          
           |
| 22 | 21 | adantll 309 |
. . . . . . . . 9
   
         
  
             |
| 23 | | ssel 1502 |
. . . . . . . . . . . . . 14
             |
| 24 | | ffvrn 2890 |
. . . . . . . . . . . . . . 15
             |
| 25 | | peano2b 2388 |
. . . . . . . . . . . . . . 15

  |
| 26 | 24, 25 | sylan2b 347 |
. . . . . . . . . . . . . 14
             |
| 27 | 23, 26 | syl5 22 |
. . . . . . . . . . . . 13
               |
| 28 | | ontr1 2258 |
. . . . . . . . . . . . . . 15
                                   |
| 29 | 28 | exp3a 292 |
. . . . . . . . . . . . . 14
             
                     |
| 30 | 29 | com23 32 |
. . . . . . . . . . . . 13
                                   |
| 31 | 27, 30 | syl6 23 |
. . . . . . . . . . . 12
            
  
                       |
| 32 | 31 | exp3a 292 |
. . . . . . . . . . 11
               
                       |
| 33 | 32 | imp31 280 |
. . . . . . . . . 10
  
          
  
                      |
| 34 | 33 | adantlr 310 |
. . . . . . . . 9
   
         
  
       
  
                      |
| 35 | 22, 34 | mpd 46 |
. . . . . . . 8
   
         
  
                       |
| 36 | 35 | syl3d 26 |
. . . . . . 7
   
         
  
                           |
| 37 | 36 | imp 277 |
. . . . . 6
                                            |
| 38 | | fveq2 2832 |
. . . . . . . . . . 11
           |
| 39 | 38 | eleq1d 1155 |
. . . . . . . . . 10
             
  
    |
| 40 | 39, 21 | syl5bir 184 |
. . . . . . . . 9
   
                    |
| 41 | 40 | com12 13 |
. . . . . . . 8
          
             |
| 42 | 41 | adantll 309 |
. . . . . . 7
   
         
  
               |
| 43 | 42 | adantr 306 |
. . . . . 6
                                            |
| 44 | 37, 43 | jaod 329 |
. . . . 5
                                              |
| 45 | | visset 1350 |
. . . . . 6
 |
| 46 | 45 | elsuc 2292 |
. . . . 5
     |
| 47 | 44, 46 | syl5ib 181 |
. . . 4
                                            |
| 48 | 47 | exp31 293 |
. . 3
  
     
                                   |
| 49 | 48 | com12 13 |
. 2

  
         
  
                           |
| 50 | 4, 8, 12, 15, 49 | finds2 2399 |
1
   
          ![]() |