Description: The span of a Hilbert space singleton is a subspace. (Contributed by NM, 17-Dec-2004) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Assertion | spansnsh | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | spansnch | |
|
2 | chsh | |
|
3 | 1 2 | syl | |