Proof of Theorem cotr2g
Step | Hyp | Ref
| Expression |
1 | | cotrg 5507 |
. 2
  
            
     |
2 | | nfv 1843 |
. . . . . 6
  |
3 | | nfv 1843 |
. . . . . 6
  |
4 | 2, 3 | 19.21-2 2078 |
. . . . 5
                    

    

               |
5 | 4 | albii 1747 |
. . . 4
                      
                        |
6 | | simpl 473 |
. . . . . . . . . . 11
           |
7 | | id 22 |
. . . . . . . . . . 11
               |
8 | | simpr 477 |
. . . . . . . . . . 11
           |
9 | 6, 7, 8 | 3jca 1242 |
. . . . . . . . . 10
                     |
10 | | simp2 1062 |
. . . . . . . . . 10
                     |
11 | 9, 10 | impbii 199 |
. . . . . . . . 9
      
              |
12 | | cotr2g.d |
. . . . . . . . . . . 12
 |
13 | | vex 3203 |
. . . . . . . . . . . . 13
 |
14 | | vex 3203 |
. . . . . . . . . . . . 13
 |
15 | 13, 14 | breldm 5329 |
. . . . . . . . . . . 12
     |
16 | 12, 15 | sseldi 3601 |
. . . . . . . . . . 11
     |
17 | 16 | pm4.71ri 665 |
. . . . . . . . . 10
  

     |
18 | | cotr2g.e |
. . . . . . . . . . . 12

  |
19 | 13, 14 | brelrn 5356 |
. . . . . . . . . . . . 13
     |
20 | | vex 3203 |
. . . . . . . . . . . . . 14
 |
21 | 14, 20 | breldm 5329 |
. . . . . . . . . . . . 13
     |
22 | | elin 3796 |
. . . . . . . . . . . . . 14
  
    |
23 | 22 | biimpri 218 |
. . . . . . . . . . . . 13
 

    |
24 | 19, 21, 23 | syl2an 494 |
. . . . . . . . . . . 12
       
   |
25 | 18, 24 | sseldi 3601 |
. . . . . . . . . . 11
         |
26 | 25 | pm4.71ri 665 |
. . . . . . . . . 10
      

         |
27 | | cotr2g.f |
. . . . . . . . . . . 12
 |
28 | 14, 20 | brelrn 5356 |
. . . . . . . . . . . 12
     |
29 | 27, 28 | sseldi 3601 |
. . . . . . . . . . 11
     |
30 | 29 | pm4.71ri 665 |
. . . . . . . . . 10
  

     |
31 | 17, 26, 30 | 3anbi123i 1251 |
. . . . . . . . 9
            
                    |
32 | | 3an6 1409 |
. . . . . . . . . 10
                  
 
                |
33 | 10, 9 | impbii 199 |
. . . . . . . . . . 11
            
        |
34 | 33 | anbi2i 730 |
. . . . . . . . . 10
  

                         |
35 | 32, 34 | bitri 264 |
. . . . . . . . 9
                  
 
          |
36 | 11, 31, 35 | 3bitri 286 |
. . . . . . . 8
      
 
          |
37 | 36 | imbi1i 339 |
. . . . . . 7
       
  
  

            |
38 | | impexp 462 |
. . . . . . 7
                
       
      |
39 | | 3impexp 1289 |
. . . . . . 7
  

                             |
40 | 37, 38, 39 | 3bitri 286 |
. . . . . 6
       
  

                 |
41 | 40 | albii 1747 |
. . . . 5
            
                    |
42 | 41 | 2albii 1748 |
. . . 4
                
                        |
43 | | df-ral 2917 |
. . . 4
 
                         

               |
44 | 5, 42, 43 | 3bitr4i 292 |
. . 3
                

    

              |
45 | | df-ral 2917 |
. . . . . 6
 
  
             
                 |
46 | | 19.21v 1868 |
. . . . . . . 8
   

            
                 |
47 | 46 | bicomi 214 |
. . . . . . 7
    
                              |
48 | 47 | albii 1747 |
. . . . . 6
   
                                   |
49 | 45, 48 | bitri 264 |
. . . . 5
 
  
                               |
50 | 49 | bicomi 214 |
. . . 4
                      
             |
51 | 50 | ralbii 2980 |
. . 3
 
                   
  
             |
52 | 44, 51 | bitri 264 |
. 2
                


                |
53 | | df-ral 2917 |
. . . . 5
 
      
  
                |
54 | 53 | bicomi 214 |
. . . 4
   
           
            |
55 | 54 | ralbii 2980 |
. . 3
 
  
           

            |
56 | 55 | ralbii 2980 |
. 2
 

  
           


            |
57 | 1, 52, 56 | 3bitri 286 |
1
  



            |