Proof of Theorem tfrlem5
| Step | Hyp | Ref
| Expression |
| 1 | | tfrlem.1 |
. . . . . 6
 
               |
| 2 | 1 | tfrlem3 5284 |
. . . . 5
 
               |
| 3 | 2 | abeq2i 2250 |
. . . 4
   
             |
| 4 | 1 | tfrlem3 5284 |
. . . . 5
 

              |
| 5 | 4 | abeq2i 2250 |
. . . 4




             |
| 6 | 3, 5 | anbi12i 710 |
. . 3
      
                            |
| 7 | | reeanv 2493 |
. . 3
             
   
                
                            |
| 8 | 6, 7 | bitr4i 283 |
. 2
       
                           |
| 9 | | onin 3842 |
. . . . 5
       |
| 10 | | r19.26m 2469 |
. . . . . . . 8
                                         
             |
| 11 | | simpr 442 |
. . . . . . . . . . . . 13
           |
| 12 | | elin 2999 |
. . . . . . . . . . . . 13
       |
| 13 | 11, 12 | sylib 242 |
. . . . . . . . . . . 12
           |
| 14 | | prth 541 |
. . . . . . . . . . . 12
          
                           
                |
| 15 | 13, 14 | syl5 35 |
. . . . . . . . . . 11
          
                   
           
                |
| 16 | | onelss 3853 |
. . . . . . . . . . . . . 14
  
        |
| 17 | 16 | impac 593 |
. . . . . . . . . . . . 13
               |
| 18 | | fvres 4780 |
. . . . . . . . . . . . . . 15
                 |
| 19 | | resabs1 4364 |
. . . . . . . . . . . . . . . 16
             |
| 20 | 19 | fveq2d 4769 |
. . . . . . . . . . . . . . 15
          
          |
| 21 | 18, 20 | eqeqan12rd 2157 |
. . . . . . . . . . . . . 14
                                 
     |
| 22 | | fvres 4780 |
. . . . . . . . . . . . . . 15
                 |
| 23 | | resabs1 4364 |
. . . . . . . . . . . . . . . 16
             |
| 24 | 23 | fveq2d 4769 |
. . . . . . . . . . . . . . 15
          
          |
| 25 | 22, 24 | eqeqan12rd 2157 |
. . . . . . . . . . . . . 14
                                       |
| 26 | 21, 25 | anbi12d 763 |
. . . . . . . . . . . . 13
                                                                       |
| 27 | 17, 26 | syl 13 |
. . . . . . . . . . . 12
                                                                       |
| 28 | 27 | bicomd 271 |
. . . . . . . . . . 11
                                           
                 
         |
| 29 | 15, 28 | mpbidi 922 |
. . . . . . . . . 10
          
                   
     
             
   
             
      |
| 30 | 29 | exp3a 400 |
. . . . . . . . 9
          
                                   
                 
          |
| 31 | 30 | alimi 1627 |
. . . . . . . 8
                                                                               |
| 32 | 10, 31 | sylbir 244 |
. . . . . . 7
                                
                                          |
| 33 | 32 | anim2i 539 |
. . . . . 6
                                    
     
             
   
             
        |
| 34 | 33 | an4s 884 |
. . . . 5
           
   
                    
     
             
   
             
        |
| 35 | | 2elresin 4623 |
. . . . . . . . 9
                               |
| 36 | | fnresin1 4626 |
. . . . . . . . . 10
         |
| 37 | | fnresin2 4627 |
. . . . . . . . . 10

        |
| 38 | | tfrlem2 5283 |
. . . . . . . . . 10
                                           
                                             |
| 39 | 36, 37, 38 | syl2an 603 |
. . . . . . . . 9
                               
                                             |
| 40 | 35, 39 | sylbid 246 |
. . . . . . . 8
                       
                                             |
| 41 | 40 | com24 79 |
. . . . . . 7
                                                      
    
         |
| 42 | 41 | com3r 66 |
. . . . . 6
  
                         
                 
            
         |
| 43 | 42 | imp32 397 |
. . . . 5
                            
                 
                      |
| 44 | 9, 34, 43 | syl2an 603 |
. . . 4
                   
                 
       |
| 45 | 44 | ex 398 |
. . 3
                   
                         |
| 46 | 45 | r19.23aivv 2465 |
. 2
             
   
                         |
| 47 | 8, 46 | sylbi 225 |
1
               |