Proof of Theorem comptoppr
| Step | Hyp | Ref
| Expression |
| 1 | | hmph 11030 |
. . 3
  Top
Top  ~=
  Homeo     |
| 2 | | visset 1859 |
. . . . . 6
 |
| 3 | | eqid 1518 |
. . . . . . 7
   |
| 4 | | eqid 1518 |
. . . . . . 7
   |
| 5 | 3, 4 | hmeobc 11048 |
. . . . . 6
  Top Top
   Homeo          Cn    Cn      |
| 6 | 2, 5 | mp3an3 911 |
. . . . 5
  Top
Top   Homeo          Cn    Cn      |
| 7 | 3, 4 | cncomp 11494 |
. . . . . . . . . . . . 13
   Comp
Top         Cn    Comp |
| 8 | 7 | exp43 384 |
. . . . . . . . . . . 12

Comp  Top       
  Cn  Comp    |
| 9 | 8 | com4l 39 |
. . . . . . . . . . 11
 Top
         Cn  
Comp Comp    |
| 10 | | f1ofo 3803 |
. . . . . . . . . . 11
               |
| 11 | 9, 10 | syl5 21 |
. . . . . . . . . 10
 Top
         Cn 
 Comp Comp    |
| 12 | 11 | imp32 361 |
. . . . . . . . 9
  Top       
 Cn     Comp
Comp  |
| 13 | 12 | adantll 392 |
. . . . . . . 8
   Top
Top         Cn     Comp
Comp  |
| 14 | 13 | 3adantr3 814 |
. . . . . . 7
   Top
Top         Cn    Cn     Comp
Comp  |
| 15 | 4, 3 | cncomp 11494 |
. . . . . . . . . . . . 13
   Comp
Top        

 Cn    Comp |
| 16 | 15 | exp43 384 |
. . . . . . . . . . . 12

Comp  Top            Cn  Comp    |
| 17 | 16 | com4l 39 |
. . . . . . . . . . 11
 Top
           Cn   Comp
Comp    |
| 18 | | f1ocnv 3809 |
. . . . . . . . . . . 12
                |
| 19 | | f1ofo 3803 |
. . . . . . . . . . . 12
       
         |
| 20 | 18, 19 | syl 10 |
. . . . . . . . . . 11
                |
| 21 | 17, 20 | syl5 21 |
. . . . . . . . . 10
 Top
          Cn  
Comp Comp    |
| 22 | 21 | imp32 361 |
. . . . . . . . 9
  Top       

 Cn     Comp
Comp  |
| 23 | 22 | adantlr 393 |
. . . . . . . 8
   Top
Top          Cn     Comp
Comp  |
| 24 | 23 | 3adantr2 813 |
. . . . . . 7
   Top
Top         Cn    Cn     Comp
Comp  |
| 25 | 14, 24 | impbid 519 |
. . . . . 6
   Top
Top         Cn    Cn     Comp Comp  |
| 26 | 25 | ex 371 |
. . . . 5
  Top
Top          Cn    Cn    Comp
Comp   |
| 27 | 6, 26 | sylbid 201 |
. . . 4
  Top
Top   Homeo   Comp Comp   |
| 28 | 27 | 19.23adv 1251 |
. . 3
  Top
Top    Homeo   Comp
Comp   |
| 29 | 1, 28 | sylbid 201 |
. 2
  Top
Top  ~=
 Comp Comp   |
| 30 | 29 | 3impia 836 |
1
  Top Top
~=  
Comp Comp  |