| Step | Hyp | Ref
| Expression |
| 1 | | cvmlift3.b |
. . . 4
  |
| 2 | | cvmlift3.y |
. . . 4
  |
| 3 | | cvmlift3lem7.s |
. . . 4
                       
    ↾t    
↾t        |
| 4 | | cvmlift3.f |
. . . 4
  CovMap    |
| 5 | | cvmlift3.k |
. . . . 5
 SConn |
| 6 | | cvmlift3.l |
. . . . 5

𝑛Locally PConn |
| 7 | | cvmlift3.o |
. . . . 5
   |
| 8 | | cvmlift3.g |
. . . . 5
     |
| 9 | | cvmlift3.p |
. . . . 5
   |
| 10 | | cvmlift3.e |
. . . . 5
           |
| 11 | | cvmlift3.h |
. . . . 5
   

                                   |
| 12 | 1, 2, 4, 5, 6, 7, 8, 9, 10, 11 | cvmlift3lem3 31303 |
. . . 4
       |
| 13 | 1, 2, 4, 5, 6, 7, 8, 9, 10, 11 | cvmlift3lem5 31305 |
. . . . 5
     |
| 14 | 13, 8 | eqeltrd 2701 |
. . . 4
       |
| 15 | | sconntop 31210 |
. . . . 5
 SConn   |
| 16 | 5, 15 | syl 17 |
. . . 4
   |
| 17 | | cvmlift3lem7.3 |
. . . . . 6

       |
| 18 | | cnvimass 5485 |
. . . . . . 7
    
 |
| 19 | | eqid 2622 |
. . . . . . . . 9
   |
| 20 | 2, 19 | cnf 21050 |
. . . . . . . 8
          |
| 21 | | fdm 6051 |
. . . . . . . 8
        |
| 22 | 8, 20, 21 | 3syl 18 |
. . . . . . 7
   |
| 23 | 18, 22 | syl5sseq 3653 |
. . . . . 6
        |
| 24 | 17, 23 | sstrd 3613 |
. . . . 5

  |
| 25 | | cvmlift3lem7.5 |
. . . . . 6

  |
| 26 | | cvmlift3lem7.6 |
. . . . . 6
   |
| 27 | 25, 26 | sseldd 3604 |
. . . . 5
   |
| 28 | 24, 27 | sseldd 3604 |
. . . 4
   |
| 29 | | cvmlift3lem7.2 |
. . . 4
       |
| 30 | 12, 28 | ffvelrnd 6360 |
. . . . 5
       |
| 31 | | fvco3 6275 |
. . . . . . . 8
     
                 |
| 32 | 12, 28, 31 | syl2anc 693 |
. . . . . . 7
                 |
| 33 | 13 | fveq1d 6193 |
. . . . . . 7
             |
| 34 | 32, 33 | eqtr3d 2658 |
. . . . . 6
               |
| 35 | | cvmlift3lem7.1 |
. . . . . 6
       |
| 36 | 34, 35 | eqeltrd 2701 |
. . . . 5
           |
| 37 | | cvmlift3lem7.w |
. . . . . 6
        |
| 38 | 3, 1, 37 | cvmsiota 31259 |
. . . . 5
   CovMap  
       
                  |
| 39 | 4, 29, 30, 36, 38 | syl13anc 1328 |
. . . 4
         |
| 40 | | eqid 2622 |
. . . . . . . . . . 11
         |
| 41 | 1, 2, 4, 5, 6, 7, 8, 9, 10, 11 | cvmlift3lem4 31304 |
. . . . . . . . . . 11
 
         
               

                        |
| 42 | 40, 41 | mpbii 223 |
. . . . . . . . . 10
 
                

                       |
| 43 | 28, 42 | mpdan 702 |
. . . . . . . . 9
                                         |
| 44 | 43 | adantr 481 |
. . . . . . . 8
 
                

                       |
| 45 | | fveq1 6190 |
. . . . . . . . . . 11
           |
| 46 | 45 | eqeq1d 2624 |
. . . . . . . . . 10
     
       |
| 47 | | fveq1 6190 |
. . . . . . . . . . 11
           |
| 48 | 47 | eqeq1d 2624 |
. . . . . . . . . 10
     
       |
| 49 | | coeq2 5280 |
. . . . . . . . . . . . . . . 16
 
     |
| 50 | 49 | eqeq2d 2632 |
. . . . . . . . . . . . . . 15
     
       |
| 51 | 50 | anbi1d 741 |
. . . . . . . . . . . . . 14
                
        |
| 52 | 51 | riotabidv 6613 |
. . . . . . . . . . . . 13
                                   |
| 53 | | coeq2 5280 |
. . . . . . . . . . . . . . . 16
 
     |
| 54 | 53 | eqeq1d 2624 |
. . . . . . . . . . . . . . 15
     
       |
| 55 | | fveq1 6190 |
. . . . . . . . . . . . . . . 16
           |
| 56 | 55 | eqeq1d 2624 |
. . . . . . . . . . . . . . 15
     
       |
| 57 | 54, 56 | anbi12d 747 |
. . . . . . . . . . . . . 14
                
        |
| 58 | 57 | cbvriotav 6622 |
. . . . . . . . . . . . 13
                                 |
| 59 | 52, 58 | syl6eqr 2674 |
. . . . . . . . . . . 12
                                   |
| 60 | 59 | fveq1d 6193 |
. . . . . . . . . . 11
                       

                  |
| 61 | 60 | eqeq1d 2624 |
. . . . . . . . . 10
            
                       
                |
| 62 | 46, 48, 61 | 3anbi123d 1399 |
. . . . . . . . 9
                                               

                        |
| 63 | 62 | cbvrexv 3172 |
. . . . . . . 8
                        
                                                      |
| 64 | 44, 63 | sylib 208 |
. . . . . . 7
 
                

                       |
| 65 | | cvmlift3lem7.7 |
. . . . . . . . 9
 
↾t  PConn |
| 66 | 65 | adantr 481 |
. . . . . . . 8
 
  ↾t  PConn |
| 67 | 2 | restuni 20966 |
. . . . . . . . . . 11
  
  ↾t    |
| 68 | 16, 24, 67 | syl2anc 693 |
. . . . . . . . . 10
   ↾t    |
| 69 | 27, 68 | eleqtrd 2703 |
. . . . . . . . 9
   ↾t    |
| 70 | 69 | adantr 481 |
. . . . . . . 8
 
   ↾t    |
| 71 | 68 | eleq2d 2687 |
. . . . . . . . 9
    ↾t     |
| 72 | 71 | biimpa 501 |
. . . . . . . 8
 
   ↾t    |
| 73 | | eqid 2622 |
. . . . . . . . 9
  ↾t   
↾t   |
| 74 | 73 | pconncn 31206 |
. . . . . . . 8
  
↾t  PConn   ↾t   
↾t   

 ↾t                |
| 75 | 66, 70, 72, 74 | syl3anc 1326 |
. . . . . . 7
 
    ↾t                |
| 76 | | reeanv 3107 |
. . . . . . . 8
        ↾t             
                                   
 
           
                            ↾t                 |
| 77 | 4 | ad3antrrr 766 |
. . . . . . . . . . 11
   
      ↾t              
                                      CovMap    |
| 78 | 5 | ad3antrrr 766 |
. . . . . . . . . . 11
   
      ↾t              
                                     SConn |
| 79 | 6 | ad3antrrr 766 |
. . . . . . . . . . 11
   
      ↾t              
                                     𝑛Locally
PConn |
| 80 | 7 | ad3antrrr 766 |
. . . . . . . . . . 11
   
      ↾t              
                                       |
| 81 | 8 | ad3antrrr 766 |
. . . . . . . . . . 11
   
      ↾t              
                                         |
| 82 | 9 | ad3antrrr 766 |
. . . . . . . . . . 11
   
      ↾t              
                                       |
| 83 | 10 | ad3antrrr 766 |
. . . . . . . . . . 11
   
      ↾t              
                                               |
| 84 | 35 | ad3antrrr 766 |
. . . . . . . . . . 11
   
      ↾t              
                                           |
| 85 | 29 | ad3antrrr 766 |
. . . . . . . . . . 11
   
      ↾t              
                                           |
| 86 | 17 | ad3antrrr 766 |
. . . . . . . . . . 11
   
      ↾t              
                                            |
| 87 | 27 | ad3antrrr 766 |
. . . . . . . . . . 11
   
      ↾t              
                                       |
| 88 | | simpllr 799 |
. . . . . . . . . . 11
   
      ↾t              
                                       |
| 89 | | simplrl 800 |
. . . . . . . . . . 11
   
      ↾t              
                                         |
| 90 | | simprl 794 |
. . . . . . . . . . 11
   
      ↾t              
                                                

                       |
| 91 | | simplrr 801 |
. . . . . . . . . . 11
   
      ↾t              
                                       ↾t     |
| 92 | | simprr 796 |
. . . . . . . . . . 11
   
      ↾t              
                                                 |
| 93 | 53 | eqeq1d 2624 |
. . . . . . . . . . . . 13
     
       |
| 94 | 55 | eqeq1d 2624 |
. . . . . . . . . . . . 13
         
           |
| 95 | 93, 94 | anbi12d 747 |
. . . . . . . . . . . 12
                    
            |
| 96 | 95 | cbvriotav 6622 |
. . . . . . . . . . 11
                             
           |
| 97 | 1, 2, 77, 78, 79, 80, 81, 82, 83, 11, 3, 84, 85, 86, 37, 87, 88, 89, 58, 90, 91, 92, 96 | cvmlift3lem6 31306 |
. . . . . . . . . 10
   
      ↾t              
                                           |
| 98 | 97 | ex 450 |
. . . . . . . . 9
      
 
↾t    
                                                      |
| 99 | 98 | rexlimdvva 3038 |
. . . . . . . 8
 
  

  

 ↾t                        
                                |
| 100 | 76, 99 | syl5bir 233 |
. . . . . . 7
 
                  

                        ↾t              
       |
| 101 | 64, 75, 100 | mp2and 715 |
. . . . . 6
 
       |
| 102 | 101 | ralrimiva 2966 |
. . . . 5
        |
| 103 | | ffun 6048 |
. . . . . . 7
       |
| 104 | 12, 103 | syl 17 |
. . . . . 6
   |
| 105 | | fdm 6051 |
. . . . . . . 8
       |
| 106 | 12, 105 | syl 17 |
. . . . . . 7
   |
| 107 | 24, 106 | sseqtr4d 3642 |
. . . . . 6

  |
| 108 | | funimass4 6247 |
. . . . . 6
                |
| 109 | 104, 107,
108 | syl2anc 693 |
. . . . 5
              |
| 110 | 102, 109 | mpbird 247 |
. . . 4
    
  |
| 111 | 1, 2, 3, 4, 12, 14, 16, 28, 29, 39, 24, 110 | cvmlift2lem9a 31285 |
. . 3
     ↾t     |
| 112 | 73 | cncnpi 21082 |
. . 3
      ↾t    
↾t        ↾t        |
| 113 | 111, 69, 112 | syl2anc 693 |
. 2
      ↾t        |
| 114 | | cvmlift3lem7.4 |
. . . . 5
   |
| 115 | 2 | ssntr 20862 |
. . . . 5
  
 
 
          |
| 116 | 16, 24, 114, 25, 115 | syl22anc 1327 |
. . . 4

          |
| 117 | 116, 26 | sseldd 3604 |
. . 3
           |
| 118 | 2, 1 | cnprest 21093 |
. . 3
  
               
            ↾t         |
| 119 | 16, 24, 117, 12, 118 | syl22anc 1327 |
. 2
        
    ↾t         |
| 120 | 113, 119 | mpbird 247 |
1
         |