Proof of Theorem infxpenc
| Step | Hyp | Ref
| Expression |
| 1 | | infxpenc.6 |
. . . 4
         |
| 2 | | f1ocnv 6149 |
. . . 4
      
         |
| 3 | 1, 2 | syl 17 |
. . 3
          |
| 4 | | infxpenc.4 |
. . . . . . . 8
         |
| 5 | | f1oi 6174 |
. . . . . . . . 9
      |
| 6 | 5 | a1i 11 |
. . . . . . . 8
        |
| 7 | | omelon 8543 |
. . . . . . . . . . 11
 |
| 8 | 7 | a1i 11 |
. . . . . . . . . 10
   |
| 9 | | 2on 7568 |
. . . . . . . . . 10
 |
| 10 | | oecl 7617 |
. . . . . . . . . 10
    
  |
| 11 | 8, 9, 10 | sylancl 694 |
. . . . . . . . 9
  
  |
| 12 | 9 | a1i 11 |
. . . . . . . . . 10
   |
| 13 | | peano1 7085 |
. . . . . . . . . . 11
 |
| 14 | 13 | a1i 11 |
. . . . . . . . . 10

  |
| 15 | | oen0 7666 |
. . . . . . . . . 10
    
    |
| 16 | 8, 12, 14, 15 | syl21anc 1325 |
. . . . . . . . 9

    |
| 17 | | ondif1 7581 |
. . . . . . . . 9
    
        |
| 18 | 11, 16, 17 | sylanbrc 698 |
. . . . . . . 8
  
    |
| 19 | | infxpenc.3 |
. . . . . . . . 9
     |
| 20 | 19 | eldifad 3586 |
. . . . . . . 8
   |
| 21 | | infxpenc.5 |
. . . . . . . 8
       |
| 22 | | infxpenc.k |
. . . . . . . 8
      finSupp    
     |
| 23 | | infxpenc.h |
. . . . . . . 8
   CNF       CNF    |
| 24 | 4, 6, 18, 20, 8, 20, 21, 22, 23 | oef1o 8595 |
. . . . . . 7
             |
| 25 | | f1oi 6174 |
. . . . . . . . . 10
      |
| 26 | 25 | a1i 11 |
. . . . . . . . 9
        |
| 27 | | infxpenc.x |
. . . . . . . . . . 11
 
      |
| 28 | | infxpenc.y |
. . . . . . . . . . 11
 
      |
| 29 | 27, 28 | omf1o 8063 |
. . . . . . . . . 10
                |
| 30 | 20, 9, 29 | sylancl 694 |
. . . . . . . . 9
              |
| 31 | | ondif1 7581 |
. . . . . . . . . . 11
  
    |
| 32 | 7, 13, 31 | mpbir2an 955 |
. . . . . . . . . 10

  |
| 33 | 32 | a1i 11 |
. . . . . . . . 9
     |
| 34 | | omcl 7616 |
. . . . . . . . . 10
    
  |
| 35 | 20, 9, 34 | sylancl 694 |
. . . . . . . . 9
  
  |
| 36 | | omcl 7616 |
. . . . . . . . . 10
 
     |
| 37 | 12, 20, 36 | syl2anc 693 |
. . . . . . . . 9
     |
| 38 | | fvresi 6439 |
. . . . . . . . . 10

       |
| 39 | 13, 38 | mp1i 13 |
. . . . . . . . 9
        |
| 40 | | infxpenc.l |
. . . . . . . . 9
      finSupp             |
| 41 | | infxpenc.j |
. . . . . . . . 9
   CNF       CNF      |
| 42 | 26, 30, 33, 35, 8, 37, 39, 40, 41 | oef1o 8595 |
. . . . . . . 8
               |
| 43 | | oeoe 7679 |
. . . . . . . . . 10
             |
| 44 | 8, 12, 20, 43 | syl3anc 1326 |
. . . . . . . . 9
   
  
    |
| 45 | | f1oeq3 6129 |
. . . . . . . . 9
                     
               |
| 46 | 44, 45 | syl 17 |
. . . . . . . 8
             
               |
| 47 | 42, 46 | mpbird 247 |
. . . . . . 7
           
   |
| 48 | | f1oco 6159 |
. . . . . . 7
               
      
 
              |
| 49 | 24, 47, 48 | syl2anc 693 |
. . . . . 6
               |
| 50 | | df-2o 7561 |
. . . . . . . . . . . 12
 |
| 51 | 50 | oveq2i 6661 |
. . . . . . . . . . 11
     |
| 52 | | 1on 7567 |
. . . . . . . . . . . 12
 |
| 53 | | omsuc 7606 |
. . . . . . . . . . . 12
           |
| 54 | 20, 52, 53 | sylancl 694 |
. . . . . . . . . . 11
         |
| 55 | 51, 54 | syl5eq 2668 |
. . . . . . . . . 10
  
      |
| 56 | | om1 7622 |
. . . . . . . . . . . 12
     |
| 57 | 20, 56 | syl 17 |
. . . . . . . . . . 11
  
  |
| 58 | 57 | oveq1d 6665 |
. . . . . . . . . 10
   
     |
| 59 | 55, 58 | eqtrd 2656 |
. . . . . . . . 9
  
    |
| 60 | 59 | oveq2d 6666 |
. . . . . . . 8
      
    |
| 61 | | oeoa 7677 |
. . . . . . . . 9
 
             |
| 62 | 8, 20, 20, 61 | syl3anc 1326 |
. . . . . . . 8
             |
| 63 | 60, 62 | eqtrd 2656 |
. . . . . . 7
             |
| 64 | | f1oeq2 6128 |
. . . . . . 7
                                         |
| 65 | 63, 64 | syl 17 |
. . . . . 6
                               |
| 66 | 49, 65 | mpbid 222 |
. . . . 5
                 |
| 67 | | oecl 7617 |
. . . . . . 7
 
     |
| 68 | 8, 20, 67 | syl2anc 693 |
. . . . . 6
     |
| 69 | | infxpenc.z |
. . . . . . 7
              |
| 70 | 69 | omxpenlem 8061 |
. . . . . 6
                         |
| 71 | 68, 68, 70 | syl2anc 693 |
. . . . 5
                   |
| 72 | | f1oco 6159 |
. . . . 5
                                
 
                |
| 73 | 66, 71, 72 | syl2anc 693 |
. . . 4
                   |
| 74 | | f1of 6137 |
. . . . . . . . . 10
      
        |
| 75 | 1, 74 | syl 17 |
. . . . . . . . 9
         |
| 76 | 75 | feqmptd 6249 |
. . . . . . . 8
         |
| 77 | | f1oeq1 6127 |
. . . . . . . 8
             

              |
| 78 | 76, 77 | syl 17 |
. . . . . . 7
       

              |
| 79 | 1, 78 | mpbid 222 |
. . . . . 6
               |
| 80 | 75 | feqmptd 6249 |
. . . . . . . 8
         |
| 81 | | f1oeq1 6127 |
. . . . . . . 8
             

              |
| 82 | 80, 81 | syl 17 |
. . . . . . 7
       

              |
| 83 | 1, 82 | mpbid 222 |
. . . . . 6
               |
| 84 | 79, 83 | xpf1o 8122 |
. . . . 5
  
                          |
| 85 | | infxpenc.t |
. . . . . 6
 
             |
| 86 | | f1oeq1 6127 |
. . . . . 6
              
              
                           |
| 87 | 85, 86 | ax-mp 5 |
. . . . 5
              
                          |
| 88 | 84, 87 | sylibr 224 |
. . . 4
               |
| 89 | | f1oco 6159 |
. . . 4
                              
                |
| 90 | 73, 88, 89 | syl2anc 693 |
. . 3
                 |
| 91 | | f1oco 6159 |
. . 3
                                         |
| 92 | 3, 90, 91 | syl2anc 693 |
. 2
                  |
| 93 | | infxpenc.g |
. . 3
          |
| 94 | | f1oeq1 6127 |
. . 3
                                   |
| 95 | 93, 94 | ax-mp 5 |
. 2
                        |
| 96 | 92, 95 | sylibr 224 |
1
         |