| Step | Hyp | Ref
| Expression |
| 1 | | hofcllem.b |
. . . . 5
     |
| 2 | | hofcllem.h |
. . . . 5
    |
| 3 | | eqid 2622 |
. . . . 5
comp  comp   |
| 4 | | hofcl.c |
. . . . . 6
   |
| 5 | 4 | adantr 481 |
. . . . 5
 
    
  |
| 6 | | hofcllem.s |
. . . . . 6
   |
| 7 | 6 | adantr 481 |
. . . . 5
 
    
  |
| 8 | | hofcllem.z |
. . . . . 6
   |
| 9 | 8 | adantr 481 |
. . . . 5
 
    
  |
| 10 | | hofcllem.x |
. . . . . 6
   |
| 11 | 10 | adantr 481 |
. . . . 5
 
    
  |
| 12 | | hofcllem.p |
. . . . . 6
       |
| 13 | 12 | adantr 481 |
. . . . 5
 
    
      |
| 14 | | hofcllem.m |
. . . . . 6
       |
| 15 | 14 | adantr 481 |
. . . . 5
 
    
      |
| 16 | | hofcllem.t |
. . . . . 6
   |
| 17 | 16 | adantr 481 |
. . . . 5
 
    
  |
| 18 | | hofcllem.y |
. . . . . . 7
   |
| 19 | 18 | adantr 481 |
. . . . . 6
 
    
  |
| 20 | | simpr 477 |
. . . . . 6
 
    
      |
| 21 | | hofcllem.w |
. . . . . . . 8
   |
| 22 | | hofcllem.n |
. . . . . . . 8
       |
| 23 | | hofcllem.q |
. . . . . . . 8
       |
| 24 | 1, 2, 3, 4, 18, 21, 16, 22, 23 | catcocl 16346 |
. . . . . . 7
     
  comp            |
| 25 | 24 | adantr 481 |
. . . . . 6
 
    
       comp            |
| 26 | 1, 2, 3, 5, 11, 19, 17, 20, 25 | catcocl 16346 |
. . . . 5
 
    
        comp            comp            |
| 27 | 1, 2, 3, 5, 7, 9, 11, 13, 15, 17, 26 | catass 16347 |
. . . 4
 
    
          comp         
  comp         
  comp         
  comp               comp         
  comp         
  comp         
  comp         |
| 28 | 21 | adantr 481 |
. . . . . . . 8
 
    
  |
| 29 | 22 | adantr 481 |
. . . . . . . 8
 
    
      |
| 30 | 23 | adantr 481 |
. . . . . . . 8
 
    
      |
| 31 | 1, 2, 3, 5, 11, 19, 28, 20, 29, 17, 30 | catass 16347 |
. . . . . . 7
 
    
        comp            comp             comp            comp         |
| 32 | 31 | oveq1d 6665 |
. . . . . 6
 
    
      
  comp         
  comp         
  comp           
  comp         
  comp             comp        |
| 33 | 1, 2, 3, 5, 11, 19, 28, 20, 29 | catcocl 16346 |
. . . . . . 7
 
    
       comp            |
| 34 | 1, 2, 3, 5, 9, 11,
28, 15, 33, 17, 30 | catass 16347 |
. . . . . 6
 
    
        comp            comp          
  comp             comp          
  comp         
  comp         |
| 35 | 32, 34 | eqtrd 2656 |
. . . . 5
 
    
      
  comp         
  comp         
  comp             comp          
  comp         
  comp         |
| 36 | 35 | oveq1d 6665 |
. . . 4
 
    
          comp         
  comp         
  comp         
  comp           
  comp             comp         
  comp             comp        |
| 37 | 27, 36 | eqtr3d 2658 |
. . 3
 
    
      
  comp         
  comp         
  comp         
  comp               comp             comp         
  comp             comp        |
| 38 | 37 | mpteq2dva 4744 |
. 2
               comp            comp            comp            comp                  
  comp             comp         
  comp             comp         |
| 39 | | hofcl.m |
. . 3
HomF   |
| 40 | 1, 2, 3, 4, 6, 8, 10, 12, 14 | catcocl 16346 |
. . 3
     
  comp            |
| 41 | 39, 4, 1, 2, 10, 18, 6, 16, 3, 40, 24 | hof2val 16896 |
. 2
         comp         
                
  comp                     comp            comp            comp            comp          |
| 42 | 39, 4, 1, 2, 8, 21,
6, 16, 3, 12, 23 | hof2val 16896 |
. . . 4
     
                       
  comp         
  comp         |
| 43 | 39, 4, 1, 2, 10, 18, 8, 21, 3, 14, 22 | hof2val 16896 |
. . . 4
     
                       
  comp         
  comp         |
| 44 | 42, 43 | oveq12d 6668 |
. . 3
                                  comp                                          comp            comp                     comp                      comp            comp          |
| 45 | | hofcl.d |
. . . 4
     |
| 46 | | hofcl.u |
. . . 4
   |
| 47 | | eqid 2622 |
. . . 4
comp  comp   |
| 48 | | eqid 2622 |
. . . . . 6
 f    f    |
| 49 | 48, 1, 2, 10, 18 | homfval 16352 |
. . . . 5
    f           |
| 50 | 48, 1 | homffn 16353 |
. . . . . . . 8
 f      |
| 51 | 50 | a1i 11 |
. . . . . . 7
 
f       |
| 52 | | hofcl.h |
. . . . . . 7
  f
    |
| 53 | | df-f 5892 |
. . . . . . 7
  f           f     
f      |
| 54 | 51, 52, 53 | sylanbrc 698 |
. . . . . 6
 
f           |
| 55 | 54, 10, 18 | fovrnd 6806 |
. . . . 5
    f       |
| 56 | 49, 55 | eqeltrrd 2702 |
. . . 4
       |
| 57 | 48, 1, 2, 8, 21 | homfval 16352 |
. . . . 5
    f           |
| 58 | 54, 8, 21 | fovrnd 6806 |
. . . . 5
    f       |
| 59 | 57, 58 | eqeltrrd 2702 |
. . . 4
       |
| 60 | 48, 1, 2, 6, 16 | homfval 16352 |
. . . . 5
    f           |
| 61 | 54, 6, 16 | fovrnd 6806 |
. . . . 5
    f       |
| 62 | 60, 61 | eqeltrrd 2702 |
. . . 4
       |
| 63 | 1, 2, 3, 5, 9, 11,
28, 15, 33 | catcocl 16346 |
. . . . 5
 
    
        comp            comp            |
| 64 | | eqid 2622 |
. . . . 5
             comp            comp                 
  comp         
  comp        |
| 65 | 63, 64 | fmptd 6385 |
. . . 4
              comp         
  comp                     |
| 66 | 4 | adantr 481 |
. . . . . 6
 
    
  |
| 67 | 6 | adantr 481 |
. . . . . 6
 
    
  |
| 68 | 8 | adantr 481 |
. . . . . 6
 
    
  |
| 69 | 16 | adantr 481 |
. . . . . 6
 
    
  |
| 70 | 12 | adantr 481 |
. . . . . 6
 
    
      |
| 71 | 21 | adantr 481 |
. . . . . . 7
 
    
  |
| 72 | | simpr 477 |
. . . . . . 7
 
    
      |
| 73 | 23 | adantr 481 |
. . . . . . 7
 
    
      |
| 74 | 1, 2, 3, 66, 68, 71, 69, 72, 73 | catcocl 16346 |
. . . . . 6
 
    
       comp            |
| 75 | 1, 2, 3, 66, 67, 68, 69, 70, 74 | catcocl 16346 |
. . . . 5
 
    
        comp            comp            |
| 76 | | eqid 2622 |
. . . . 5
             comp            comp                 
  comp         
  comp        |
| 77 | 75, 76 | fmptd 6385 |
. . . 4
              comp         
  comp                     |
| 78 | 45, 46, 47, 56, 59, 62, 65, 77 | setcco 16733 |
. . 3
               comp            comp                     comp                   
  comp         
  comp                      comp            comp                 
  comp         
  comp          |
| 79 | | eqidd 2623 |
. . . 4
              comp         
  comp                    comp         
  comp         |
| 80 | | eqidd 2623 |
. . . 4
              comp         
  comp                    comp         
  comp         |
| 81 | | oveq2 6658 |
. . . . 5
         comp            comp             comp             comp          
  comp         
  comp         |
| 82 | 81 | oveq1d 6665 |
. . . 4
         comp            comp              comp            comp              comp             comp            comp          
  comp        |
| 83 | 63, 79, 80, 82 | fmptco 6396 |
. . 3
               comp            comp                    comp            comp                     comp             comp         
  comp             comp         |
| 84 | 44, 78, 83 | 3eqtrd 2660 |
. 2
                                  comp                                         comp             comp            comp          
  comp         |
| 85 | 38, 41, 84 | 3eqtr4d 2666 |
1
         comp         
                
  comp                                        comp                              |