Description: A subspace is a subset of Hilbert space. (Contributed by NM, 9-Oct-1999) (Revised by Mario Carneiro, 23-Dec-2013) (New usage is discouraged.)
Ref | Expression | ||
---|---|---|---|
Assertion | shss | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | issh | |
|
2 | 1 | simplbi | |
3 | 2 | simpld | |