Step | Hyp | Ref
| Expression |
1 | | catpropd.1 |
. . . . . 6
 
f   
f     |
2 | 1 | homfeqbas 16356 |
. . . . 5
           |
3 | 2 | adantr 481 |
. . . 4
 

          |
4 | | eqid 2622 |
. . . . . . . . . 10
         |
5 | | eqid 2622 |
. . . . . . . . . 10
       |
6 | | eqid 2622 |
. . . . . . . . . 10
       |
7 | 1 | ad4antr 768 |
. . . . . . . . . 10
     
                 
 f    f     |
8 | | simpr 477 |
. . . . . . . . . 10
     
                 
      |
9 | | simpllr 799 |
. . . . . . . . . 10
     
                 
      |
10 | 4, 5, 6, 7, 8, 9 | homfeqval 16357 |
. . . . . . . . 9
     
                 
  
             |
11 | | eqid 2622 |
. . . . . . . . . . 11
comp  comp   |
12 | | eqid 2622 |
. . . . . . . . . . 11
comp  comp   |
13 | 1 | ad5antr 770 |
. . . . . . . . . . 11
     

                         
 f    f     |
14 | | catpropd.2 |
. . . . . . . . . . . 12
 compf  compf    |
15 | 14 | ad5antr 770 |
. . . . . . . . . . 11
     

                         
compf  compf    |
16 | | simplr 792 |
. . . . . . . . . . 11
     

                         
      |
17 | | simp-4r 807 |
. . . . . . . . . . 11
     

                         
      |
18 | | simpr 477 |
. . . . . . . . . . 11
     

                         
         |
19 | | simpllr 799 |
. . . . . . . . . . 11
     

                         
         |
20 | 4, 5, 11, 12, 13, 15, 16, 17, 17, 18, 19 | comfeqval 16368 |
. . . . . . . . . 10
     

                         
       comp             comp        |
21 | 20 | eqeq1d 2624 |
. . . . . . . . 9
     

                         
        comp     
       comp         |
22 | 10, 21 | raleqbidva 3154 |
. . . . . . . 8
     
                 
 
  
            comp     
                comp         |
23 | 4, 5, 6, 7, 9, 8 | homfeqval 16357 |
. . . . . . . . 9
     
                 
  
             |
24 | 7 | adantr 481 |
. . . . . . . . . . 11
     

                         
 f    f     |
25 | 14 | ad5antr 770 |
. . . . . . . . . . 11
     

                         
compf  compf    |
26 | 9 | adantr 481 |
. . . . . . . . . . 11
     

                         
      |
27 | | simplr 792 |
. . . . . . . . . . 11
     

                         
      |
28 | | simpllr 799 |
. . . . . . . . . . 11
     

                         
         |
29 | | simpr 477 |
. . . . . . . . . . 11
     

                         
         |
30 | 4, 5, 11, 12, 24, 25, 26, 26, 27, 28, 29 | comfeqval 16368 |
. . . . . . . . . 10
     

                         
       comp             comp        |
31 | 30 | eqeq1d 2624 |
. . . . . . . . 9
     

                         
        comp     
       comp         |
32 | 23, 31 | raleqbidva 3154 |
. . . . . . . 8
     
                 
 
  
            comp     
                comp         |
33 | 22, 32 | anbi12d 747 |
. . . . . . 7
     
                 
  
               comp                      comp                        comp                      comp          |
34 | 33 | ralbidva 2985 |
. . . . . 6
   

                                     comp                      comp                              comp                      comp          |
35 | 34 | riotabidva 6627 |
. . . . 5
                   
      
  
            comp      
  
            comp                                         comp                      comp          |
36 | 1 | ad2antrr 762 |
. . . . . . 7
          f    f     |
37 | | simpr 477 |
. . . . . . 7
               |
38 | 4, 5, 6, 36, 37, 37 | homfeqval 16357 |
. . . . . 6
                         |
39 | 2 | ad2antrr 762 |
. . . . . . 7
                   |
40 | 39 | raleqdv 3144 |
. . . . . 6
          
                      comp                      comp       
                      comp                      comp          |
41 | 38, 40 | riotaeqbidv 6614 |
. . . . 5
                   
      
  
            comp      
  
            comp                                         comp                      comp          |
42 | 35, 41 | eqtrd 2656 |
. . . 4
                   
      
  
            comp      
  
            comp                                         comp                      comp          |
43 | 3, 42 | mpteq12dva 4732 |
. . 3
 

                                      comp                      comp                        
      
  
            comp      
  
            comp           |
44 | | simpr 477 |
. . . 4
 

  |
45 | | eqid 2622 |
. . . 4
         |
46 | 4, 5, 11, 44, 45 | cidfval 16337 |
. . 3
 

                   
      
  
            comp      
  
            comp           |
47 | | eqid 2622 |
. . . 4
         |
48 | | catpropd.3 |
. . . . . 6
   |
49 | | catpropd.4 |
. . . . . 6
   |
50 | 1, 14, 48, 49 | catpropd 16369 |
. . . . 5
     |
51 | 50 | biimpa 501 |
. . . 4
 

  |
52 | | eqid 2622 |
. . . 4
         |
53 | 47, 6, 12, 51, 52 | cidfval 16337 |
. . 3
 

                   
      
  
            comp      
  
            comp           |
54 | 43, 46, 53 | 3eqtr4d 2666 |
. 2
 

          |
55 | | simpr 477 |
. . . . 5
 

  |
56 | | cidffn 16339 |
. . . . . . 7
 |
57 | | fndm 5990 |
. . . . . . 7
   |
58 | 56, 57 | ax-mp 5 |
. . . . . 6
 |
59 | 58 | eleq2i 2693 |
. . . . 5

  |
60 | 55, 59 | sylnibr 319 |
. . . 4
 

  |
61 | | ndmfv 6218 |
. . . 4
       |
62 | 60, 61 | syl 17 |
. . 3
 
       |
63 | 58 | eleq2i 2693 |
. . . . . . 7

  |
64 | 50, 63 | syl6bbr 278 |
. . . . . 6
     |
65 | 64 | notbid 308 |
. . . . 5
     |
66 | 65 | biimpa 501 |
. . . 4
 

  |
67 | | ndmfv 6218 |
. . . 4
       |
68 | 66, 67 | syl 17 |
. . 3
 
       |
69 | 62, 68 | eqtr4d 2659 |
. 2
 
           |
70 | 54, 69 | pm2.61dan 832 |
1
           |