| Step | Hyp | Ref
| Expression |
| 1 | | caovdilemd.cl |
. . . 4
 

        |
| 2 | | caovdilemd.a |
. . . 4
   |
| 3 | | caovdilemd.c |
. . . . 5
   |
| 4 | | caovdilemd.h |
. . . . 5
   |
| 5 | 1, 3, 4 | caovcld 5674 |
. . . 4
       |
| 6 | 1, 2, 5 | caovcld 5674 |
. . 3
           |
| 7 | | caovdilemd.b |
. . . 4
   |
| 8 | | caovdilemd.d |
. . . . 5
   |
| 9 | 1, 8, 4 | caovcld 5674 |
. . . 4
       |
| 10 | 1, 7, 9 | caovcld 5674 |
. . 3
           |
| 11 | | caovdl2.6 |
. . . . 5
   |
| 12 | 1, 8, 11 | caovcld 5674 |
. . . 4
       |
| 13 | 1, 2, 12 | caovcld 5674 |
. . 3
           |
| 14 | | caovdl2.com |
. . 3
 

            |
| 15 | | caovdl2.ass |
. . 3
 

                    |
| 16 | 1, 3, 11 | caovcld 5674 |
. . . 4
       |
| 17 | 1, 7, 16 | caovcld 5674 |
. . 3
           |
| 18 | | caovdl2.cl |
. . 3
 

        |
| 19 | 6, 10, 13, 14, 15, 17, 18 | caov42d 5707 |
. 2
                                                                                           |
| 20 | | caovdilemd.com |
. . . 4
 

            |
| 21 | | caovdilemd.distr |
. . . 4
 

                        |
| 22 | | caovdilemd.ass |
. . . 4
 

                    |
| 23 | 20, 21, 22, 1, 2, 7,
3, 8, 4 | caovdilemd 5712 |
. . 3
                                       |
| 24 | 20, 21, 22, 1, 2, 7,
8, 3, 11 | caovdilemd 5712 |
. . 3
                                       |
| 25 | 23, 24 | oveq12d 5550 |
. 2
                                                                                   |
| 26 | | simpr1 944 |
. . . . . . 7
 

 
  |
| 27 | 18 | caovclg 5673 |
. . . . . . . . 9
 

        |
| 28 | 27 | caovclg 5673 |
. . . . . . . 8
 

        |
| 29 | 28 | 3adantr1 1097 |
. . . . . . 7
 

        |
| 30 | 26, 29 | jca 300 |
. . . . . 6
 

          |
| 31 | 20 | caovcomg 5676 |
. . . . . . 7
 

            |
| 32 | 31 | caovcomg 5676 |
. . . . . 6
 

                        |
| 33 | 30, 32 | syldan 276 |
. . . . 5
 

                    |
| 34 | | 3anrot 924 |
. . . . . 6
 
 
   |
| 35 | 21 | caovdirg 5698 |
. . . . . . 7
 

                        |
| 36 | 35 | caovdirg 5698 |
. . . . . 6
 

                        |
| 37 | 34, 36 | sylan2b 281 |
. . . . 5
 

                        |
| 38 | 20 | eqcomd 2086 |
. . . . . . 7
 

            |
| 39 | 38 | 3adantr3 1099 |
. . . . . 6
 

            |
| 40 | 31 | caovcomg 5676 |
. . . . . . . 8
 

            |
| 41 | 40 | ancom2s 530 |
. . . . . . 7
 

            |
| 42 | 41 | 3adantr2 1098 |
. . . . . 6
 

            |
| 43 | 39, 42 | oveq12d 5550 |
. . . . 5
 

                            |
| 44 | 33, 37, 43 | 3eqtrd 2117 |
. . . 4
 

                        |
| 45 | 44, 2, 5, 12 | caovdid 5696 |
. . 3
                                       |
| 46 | 44, 7, 16, 9 | caovdid 5696 |
. . 3
                                       |
| 47 | 45, 46 | oveq12d 5550 |
. 2
                                                                                   |
| 48 | 19, 25, 47 | 3eqtr4d 2123 |
1
                                                                           |