Proof of Theorem bloval
| Step | Hyp | Ref
| Expression |
| 1 | | bloval.4 |
. . . . 5
 LnOp   |
| 2 | | oprex 3983 |
. . . . 5
 LnOp   |
| 3 | 1, 2 | eqeltr 1544 |
. . . 4
 |
| 4 | 3 | rabex 2725 |
. . 3
       |
| 5 | | opreq1 3968 |
. . . . . . 7
  normOp  normOp   |
| 6 | 5 | fveq1d 3726 |
. . . . . 6
   normOp      normOp      |
| 7 | 6 | breq1d 2629 |
. . . . 5
    normOp      normOp       |
| 8 | 7 | rabbisdv 1807 |
. . . 4
   LnOp    normOp    
  LnOp    normOp       |
| 9 | | opreq1 3968 |
. . . . 5
  LnOp   LnOp    |
| 10 | | rabeq 1809 |
. . . . 5
  LnOp   LnOp 
  LnOp 
  normOp       LnOp 
  normOp       |
| 11 | 9, 10 | syl 10 |
. . . 4
   LnOp    normOp    
  LnOp    normOp       |
| 12 | 8, 11 | eqtrd 1507 |
. . 3
   LnOp    normOp    
  LnOp    normOp       |
| 13 | | opreq2 3969 |
. . . . . 6
  LnOp   LnOp    |
| 14 | 13, 1 | syl6eqr 1525 |
. . . . 5
  LnOp    |
| 15 | | rabeq 1809 |
. . . . 5
  LnOp    LnOp    normOp    
   normOp       |
| 16 | 14, 15 | syl 10 |
. . . 4
   LnOp    normOp    
   normOp       |
| 17 | | opreq2 3969 |
. . . . . . . 8
  normOp  normOp   |
| 18 | | bloval.3 |
. . . . . . . 8
 normOp  |
| 19 | 17, 18 | syl6eqr 1525 |
. . . . . . 7
  normOp   |
| 20 | 19 | fveq1d 3726 |
. . . . . 6
   normOp          |
| 21 | 20 | breq1d 2629 |
. . . . 5
    normOp           |
| 22 | 21 | rabbisdv 1807 |
. . . 4
    normOp             |
| 23 | 16, 22 | eqtrd 1507 |
. . 3
   LnOp    normOp    
        |
| 24 | | df-blo 8407 |
. . 3
BLnOp          NrmCVec
NrmCVec   LnOp    normOp        |
| 25 | 4, 12, 23, 24 | oprabval2 4028 |
. 2
  NrmCVec NrmCVec  BLnOp          |
| 26 | | bloval.5 |
. 2
 BLnOp   |
| 27 | 25, 26 | syl5eq 1519 |
1
  NrmCVec NrmCVec         |