Description: The identically zero function is a linear Hilbert space operator. (Contributed by NM, 7-Feb-2006) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Assertion | 0lnop | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 0hmop | |
|
2 | hmoplin | |
|
3 | 1 2 | ax-mp | |