| Step |
Hyp |
Ref |
Expression |
| 1 |
|
axhil.1 |
|- U = <. <. +h , .h >. , normh >. |
| 2 |
|
axhil.2 |
|- U e. CHilOLD |
| 3 |
|
df-hba |
|- ~H = ( BaseSet ` <. <. +h , .h >. , normh >. ) |
| 4 |
1
|
fveq2i |
|- ( BaseSet ` U ) = ( BaseSet ` <. <. +h , .h >. , normh >. ) |
| 5 |
3 4
|
eqtr4i |
|- ~H = ( BaseSet ` U ) |
| 6 |
2
|
hlnvi |
|- U e. NrmCVec |
| 7 |
1 6
|
h2hsm |
|- .h = ( .sOLD ` U ) |
| 8 |
|
df-h0v |
|- 0h = ( 0vec ` <. <. +h , .h >. , normh >. ) |
| 9 |
1
|
fveq2i |
|- ( 0vec ` U ) = ( 0vec ` <. <. +h , .h >. , normh >. ) |
| 10 |
8 9
|
eqtr4i |
|- 0h = ( 0vec ` U ) |
| 11 |
5 7 10
|
hlmul0 |
|- ( ( U e. CHilOLD /\ A e. ~H ) -> ( 0 .h A ) = 0h ) |
| 12 |
2 11
|
mpan |
|- ( A e. ~H -> ( 0 .h A ) = 0h ) |