| Step | Hyp | Ref
| Expression |
| 1 | | simpr 477 |
. . . . . . . . 9
 
   |
| 2 | | cnmptid.j |
. . . . . . . . . . . 12
 TopOn    |
| 3 | | cnmpt11.k |
. . . . . . . . . . . 12
 TopOn    |
| 4 | | cnmpt11.a |
. . . . . . . . . . . 12
       |
| 5 | | cnf2 21053 |
. . . . . . . . . . . 12
  TopOn  TopOn      

       |
| 6 | 2, 3, 4, 5 | syl3anc 1326 |
. . . . . . . . . . 11
         |
| 7 | | eqid 2622 |
. . . . . . . . . . . 12
     |
| 8 | 7 | fmpt 6381 |
. . . . . . . . . . 11
 
        |
| 9 | 6, 8 | sylibr 224 |
. . . . . . . . . 10
 
  |
| 10 | 9 | r19.21bi 2932 |
. . . . . . . . 9
 
   |
| 11 | 7 | fvmpt2 6291 |
. . . . . . . . 9
 
         |
| 12 | 1, 10, 11 | syl2anc 693 |
. . . . . . . 8
 
         |
| 13 | 12 | fveq2d 6195 |
. . . . . . 7
 
                     |
| 14 | | cnmpt11.b |
. . . . . . . . . . . . . 14
       |
| 15 | | cntop2 21045 |
. . . . . . . . . . . . . 14
    
  |
| 16 | 14, 15 | syl 17 |
. . . . . . . . . . . . 13
   |
| 17 | | eqid 2622 |
. . . . . . . . . . . . . 14
   |
| 18 | 17 | toptopon 20722 |
. . . . . . . . . . . . 13

TopOn     |
| 19 | 16, 18 | sylib 208 |
. . . . . . . . . . . 12
 TopOn     |
| 20 | | cnf2 21053 |
. . . . . . . . . . . 12
  TopOn  TopOn                 |
| 21 | 3, 19, 14, 20 | syl3anc 1326 |
. . . . . . . . . . 11
          |
| 22 | | eqid 2622 |
. . . . . . . . . . . 12
     |
| 23 | 22 | fmpt 6381 |
. . . . . . . . . . 11
 


        |
| 24 | 21, 23 | sylibr 224 |
. . . . . . . . . 10
 
   |
| 25 | 24 | adantr 481 |
. . . . . . . . 9
 
 
   |
| 26 | | cnmpt11.c |
. . . . . . . . . . 11
   |
| 27 | 26 | eleq1d 2686 |
. . . . . . . . . 10
 

    |
| 28 | 27 | rspcv 3305 |
. . . . . . . . 9
  

    |
| 29 | 10, 25, 28 | sylc 65 |
. . . . . . . 8
 
    |
| 30 | 26, 22 | fvmptg 6280 |
. . . . . . . 8
 
          |
| 31 | 10, 29, 30 | syl2anc 693 |
. . . . . . 7
 
         |
| 32 | 13, 31 | eqtrd 2656 |
. . . . . 6
 
               |
| 33 | | fvco3 6275 |
. . . . . . 7
        
                        |
| 34 | 6, 33 | sylan 488 |
. . . . . 6
 
                         |
| 35 | | eqid 2622 |
. . . . . . . 8
     |
| 36 | 35 | fvmpt2 6291 |
. . . . . . 7
 
          |
| 37 | 1, 29, 36 | syl2anc 693 |
. . . . . 6
 
         |
| 38 | 32, 34, 37 | 3eqtr4d 2666 |
. . . . 5
 
                   |
| 39 | 38 | ralrimiva 2966 |
. . . 4
                    |
| 40 | | nfv 1843 |
. . . . 5
                   |
| 41 | | nfcv 2764 |
. . . . . . . 8
     |
| 42 | | nfmpt1 4747 |
. . . . . . . 8
     |
| 43 | 41, 42 | nfco 5287 |
. . . . . . 7
         |
| 44 | | nfcv 2764 |
. . . . . . 7
   |
| 45 | 43, 44 | nffv 6198 |
. . . . . 6
             |
| 46 | | nfmpt1 4747 |
. . . . . . 7
     |
| 47 | 46, 44 | nffv 6198 |
. . . . . 6
         |
| 48 | 45, 47 | nfeq 2776 |
. . . . 5
                   |
| 49 | | fveq2 6191 |
. . . . . 6
                       |
| 50 | | fveq2 6191 |
. . . . . 6
               |
| 51 | 49, 50 | eqeq12d 2637 |
. . . . 5
                 
                   |
| 52 | 40, 48, 51 | cbvral 3167 |
. . . 4
 
                                   |
| 53 | 39, 52 | sylib 208 |
. . 3
                    |
| 54 | | fco 6058 |
. . . . . 6
        
                    |
| 55 | 21, 6, 54 | syl2anc 693 |
. . . . 5
              |
| 56 | | ffn 6045 |
. . . . 5
           
        |
| 57 | 55, 56 | syl 17 |
. . . 4
         |
| 58 | 29, 35 | fmptd 6385 |
. . . . 5
          |
| 59 | | ffn 6045 |
. . . . 5
            |
| 60 | 58, 59 | syl 17 |
. . . 4
     |
| 61 | | eqfnfv 6311 |
. . . 4
                   

                   |
| 62 | 57, 60, 61 | syl2anc 693 |
. . 3
         

                   |
| 63 | 53, 62 | mpbird 247 |
. 2
           |
| 64 | | cnco 21070 |
. . 3
                     |
| 65 | 4, 14, 64 | syl2anc 693 |
. 2
           |
| 66 | 63, 65 | eqeltrrd 2702 |
1
       |