| Step | Hyp | Ref
 | Expression | 
| 1 |   | nninfdclemf.a | 
. . . 4
          
   | 
| 2 |   | nninfdclemf.dc | 
. . . . . 6
              DECID        | 
| 3 |   | nninfdclemf.nb | 
. . . . . 6
                            | 
| 4 |   | nninfdclemf.j | 
. . . . . 6
                 
      | 
| 5 |   | nninfdclemf.f | 
. . . . . 6
                         inf                                          | 
| 6 | 1, 2, 3, 4, 5 | nninfdclemf 12666 | 
. . . . 5
              | 
| 7 |   | nninfdclemp1.u | 
. . . . 5
              | 
| 8 | 6, 7 | ffvelcdmd 5698 | 
. . . 4
                  | 
| 9 | 1, 8 | sseldd 3184 | 
. . 3
                  | 
| 10 | 9 | nnred 9003 | 
. 2
                  | 
| 11 | 9 | nnzd 9447 | 
. . . 4
                  | 
| 12 | 11 | peano2zd 9451 | 
. . 3
                        | 
| 13 | 12 | zred 9448 | 
. 2
                        | 
| 14 | 7 | peano2nnd 9005 | 
. . . . 5
                    | 
| 15 | 6, 14 | ffvelcdmd 5698 | 
. . . 4
              
         | 
| 16 | 1, 15 | sseldd 3184 | 
. . 3
              
         | 
| 17 | 16 | nnred 9003 | 
. 2
              
         | 
| 18 | 10 | ltp1d 8957 | 
. 2
              
             | 
| 19 |   | simpr 110 | 
. . . . . . 7
       
      
                     
      
                    | 
| 20 | 19 | elin2d 3353 | 
. . . . . 6
       
      
                     
                     | 
| 21 |   | eluzle 9613 | 
. . . . . 6
                        
                 | 
| 22 | 20, 21 | syl 14 | 
. . . . 5
       
      
                     
                 | 
| 23 | 22 | ralrimiva 2570 | 
. . . 4
                                                  | 
| 24 |   | inss1 3383 | 
. . . . . . 7
                            | 
| 25 | 24, 1 | sstrid 3194 | 
. . . . . 6
                                  | 
| 26 |   | eleq1w 2257 | 
. . . . . . . . . . 11
                   
        | 
| 27 | 26 | dcbid 839 | 
. . . . . . . . . 10
            DECID      
  DECID    
    | 
| 28 | 2 | adantr 276 | 
. . . . . . . . . 10
       
      
         DECID        | 
| 29 |   | simpr 110 | 
. . . . . . . . . 10
       
      
         | 
| 30 | 27, 28, 29 | rspcdva 2873 | 
. . . . . . . . 9
       
      
 
DECID  
     | 
| 31 | 29 | nnzd 9447 | 
. . . . . . . . . 10
       
      
         | 
| 32 |   | eluzdc 9684 | 
. . . . . . . . . 10
                         
     DECID                      | 
| 33 | 12, 31, 32 | syl2an2r 595 | 
. . . . . . . . 9
       
      
 
DECID  
                   | 
| 34 |   | dcan2 936 | 
. . . . . . . . 9
   DECID        
 DECID
                      DECID           
                     | 
| 35 | 30, 33, 34 | sylc 62 | 
. . . . . . . 8
       
      
 
DECID           
                    | 
| 36 |   | elin 3346 | 
. . . . . . . . 9
                                                              | 
| 37 | 36 | dcbii 841 | 
. . . . . . . 8
   DECID                             DECID             
                  | 
| 38 | 35, 37 | sylibr 134 | 
. . . . . . 7
       
      
 
DECID  
                         | 
| 39 | 38 | ralrimiva 2570 | 
. . . . . 6
              DECID                            | 
| 40 |   | breq1 4036 | 
. . . . . . . . . . 11
                   
   
            | 
| 41 | 40 | rexbidv 2498 | 
. . . . . . . . . 10
                  
           
      
            | 
| 42 | 41, 3, 9 | rspcdva 2873 | 
. . . . . . . . 9
                         | 
| 43 |   | breq2 4037 | 
. . . . . . . . . 10
                   
   
            | 
| 44 | 43 | cbvrexv 2730 | 
. . . . . . . . 9
                     
      
           | 
| 45 | 42, 44 | sylib 122 | 
. . . . . . . 8
                         | 
| 46 |   | df-rex 2481 | 
. . . . . . . 8
                     
                  
    | 
| 47 | 45, 46 | sylib 122 | 
. . . . . . 7
                              | 
| 48 |   | simprl 529 | 
. . . . . . . . . 10
       
      
                       | 
| 49 | 12 | adantr 276 | 
. . . . . . . . . . 11
       
      
                                 | 
| 50 | 1 | adantr 276 | 
. . . . . . . . . . . . 13
       
      
                       | 
| 51 | 50, 48 | sseldd 3184 | 
. . . . . . . . . . . 12
       
      
                       | 
| 52 | 51 | nnzd 9447 | 
. . . . . . . . . . 11
       
      
                       | 
| 53 |   | simprr 531 | 
. . . . . . . . . . . 12
       
      
                       
   | 
| 54 |   | nnltp1le 9386 | 
. . . . . . . . . . . . 13
                   
                                    | 
| 55 | 9, 51, 54 | syl2an2r 595 | 
. . . . . . . . . . . 12
       
      
                                               | 
| 56 | 53, 55 | mpbid 147 | 
. . . . . . . . . . 11
       
      
                             
   | 
| 57 |   | eluz2 9607 | 
. . . . . . . . . . 11
                                                                      | 
| 58 | 49, 52, 56, 57 | syl3anbrc 1183 | 
. . . . . . . . . 10
       
      
                                     | 
| 59 | 48, 58 | elind 3348 | 
. . . . . . . . 9
       
      
                                           | 
| 60 | 59 | ex 115 | 
. . . . . . . 8
                                                          | 
| 61 | 60 | eximdv 1894 | 
. . . . . . 7
                                  
      
                     | 
| 62 | 47, 61 | mpd 13 | 
. . . . . 6
                                     | 
| 63 | 25, 39, 62 | nninfdcex 10327 | 
. . . . 5
                                                               
                                       | 
| 64 |   | nnssre 8994 | 
. . . . . 6
        | 
| 65 | 25, 64 | sstrdi 3195 | 
. . . . 5
                                  | 
| 66 | 63, 65, 13 | infregelbex 9672 | 
. . . 4
                      inf                                                                             | 
| 67 | 23, 66 | mpbird 167 | 
. . 3
                    
inf                                | 
| 68 | 5 | fveq1i 5559 | 
. . . . 5
                              
      inf                                              
    | 
| 69 |   | nnuz 9637 | 
. . . . . . 7
            | 
| 70 | 7, 69 | eleqtrdi 2289 | 
. . . . . 6
                  | 
| 71 |   | eqid 2196 | 
. . . . . . . 8
                            | 
| 72 |   | eqidd 2197 | 
. . . . . . . 8
                  | 
| 73 |   | elnnuz 9638 | 
. . . . . . . . . 10
          
           | 
| 74 | 73 | biimpri 133 | 
. . . . . . . . 9
              
       | 
| 75 | 74 | adantl 277 | 
. . . . . . . 8
       
            
       | 
| 76 | 4 | simpld 112 | 
. . . . . . . . 9
              | 
| 77 | 76 | adantr 276 | 
. . . . . . . 8
       
            
       | 
| 78 | 71, 72, 75, 77 | fvmptd3 5655 | 
. . . . . . 7
       
            
                     | 
| 79 | 78, 77 | eqeltrd 2273 | 
. . . . . 6
       
            
                     | 
| 80 | 1 | adantr 276 | 
. . . . . . 7
       
      
                   | 
| 81 | 2 | adantr 276 | 
. . . . . . 7
       
      
              
    DECID        | 
| 82 | 3 | adantr 276 | 
. . . . . . 7
       
      
              
                  | 
| 83 |   | simprl 529 | 
. . . . . . 7
       
      
               
   | 
| 84 |   | simprr 531 | 
. . . . . . 7
       
      
                   | 
| 85 | 80, 81, 82, 83, 84 | nninfdclemcl 12665 | 
. . . . . 6
       
      
                              inf                                   | 
| 86 | 70, 79, 85 | seq3p1 10557 | 
. . . . 5
                     
      inf                                              
                            inf                                                     
      inf                                                   | 
| 87 | 68, 86 | eqtrid 2241 | 
. . . 4
              
                            inf                                                     
      inf                                                   | 
| 88 | 5 | fveq1i 5559 | 
. . . . . . 7
                        
      inf                                             | 
| 89 | 88 | eqcomi 2200 | 
. . . . . 6
                       inf                                                     | 
| 90 | 89 | a1i 9 | 
. . . . 5
                     
      inf                                                      | 
| 91 |   | eqidd 2197 | 
. . . . . 6
                        | 
| 92 | 71, 91, 14, 76 | fvmptd3 5655 | 
. . . . 5
                      
           | 
| 93 | 90, 92 | oveq12d 5940 | 
. . . 4
                             inf                                                            inf                                                                          inf                               | 
| 94 | 1, 76 | sseldd 3184 | 
. . . . 5
              | 
| 95 |   | eleq1w 2257 | 
. . . . . . . . . . . . 13
                   
        | 
| 96 | 95 | dcbid 839 | 
. . . . . . . . . . . 12
            DECID      
  DECID    
    | 
| 97 | 2 | adantr 276 | 
. . . . . . . . . . . 12
       
      
         DECID        | 
| 98 |   | simpr 110 | 
. . . . . . . . . . . 12
       
      
         | 
| 99 | 96, 97, 98 | rspcdva 2873 | 
. . . . . . . . . . 11
       
      
 
DECID  
     | 
| 100 | 98 | nnzd 9447 | 
. . . . . . . . . . . 12
       
      
         | 
| 101 |   | eluzdc 9684 | 
. . . . . . . . . . . 12
                         
     DECID                      | 
| 102 | 12, 100, 101 | syl2an2r 595 | 
. . . . . . . . . . 11
       
      
 
DECID  
                   | 
| 103 |   | dcan2 936 | 
. . . . . . . . . . 11
   DECID        
 DECID
                      DECID           
                     | 
| 104 | 99, 102, 103 | sylc 62 | 
. . . . . . . . . 10
       
      
 
DECID           
                    | 
| 105 |   | elin 3346 | 
. . . . . . . . . . 11
                                                              | 
| 106 | 105 | dcbii 841 | 
. . . . . . . . . 10
   DECID                             DECID             
                  | 
| 107 | 104, 106 | sylibr 134 | 
. . . . . . . . 9
       
      
 
DECID  
                         | 
| 108 | 107 | ralrimiva 2570 | 
. . . . . . . 8
              DECID                            | 
| 109 |   | eleq1w 2257 | 
. . . . . . . . . 10
                                       
      
                     | 
| 110 | 109 | dcbid 839 | 
. . . . . . . . 9
            DECID                             DECID                             | 
| 111 | 110 | cbvralv 2729 | 
. . . . . . . 8
       
 
DECID  
                         
       DECID                            | 
| 112 | 108, 111 | sylib 122 | 
. . . . . . 7
              DECID                            | 
| 113 |   | nnmindc 12201 | 
. . . . . . 7
                             
         DECID                                 
                           inf                                                        | 
| 114 | 25, 112, 62, 113 | syl3anc 1249 | 
. . . . . 6
       inf                                                        | 
| 115 | 114 | elin1d 3352 | 
. . . . 5
       inf                                    | 
| 116 |   | fvoveq1 5945 | 
. . . . . . . 8
                                              | 
| 117 | 116 | ineq2d 3364 | 
. . . . . . 7
                                                          | 
| 118 | 117 | infeq1d 7078 | 
. . . . . 6
               inf                             inf                                | 
| 119 |   | eqidd 2197 | 
. . . . . 6
           inf                                 inf                                | 
| 120 |   | eqid 2196 | 
. . . . . 6
                  inf                                              inf                            | 
| 121 | 118, 119,
120 | ovmpog 6057 | 
. . . . 5
                   
    inf                                                            inf                                inf                                | 
| 122 | 9, 94, 115, 121 | syl3anc 1249 | 
. . . 4
                             inf                                inf                                | 
| 123 | 87, 93, 122 | 3eqtrd 2233 | 
. . 3
              
      inf                                | 
| 124 | 67, 123 | breqtrrd 4061 | 
. 2
                    
             | 
| 125 | 10, 13, 17, 18, 124 | ltletrd 8450 | 
1
              
             |