Description: A subcomplex vector space is a (left) vector space. (Contributed by Thierry Arnoux, 22-May-2019)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | cvslvec.1 | |- ( ph -> W e. CVec ) | |
| Assertion | cvslvec | |- ( ph -> W e. LVec ) | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | cvslvec.1 | |- ( ph -> W e. CVec ) | |
| 2 | df-cvs | |- CVec = ( CMod i^i LVec ) | |
| 3 | 2 | elin2 | |- ( W e. CVec <-> ( W e. CMod /\ W e. LVec ) ) | 
| 4 | 3 | simprbi | |- ( W e. CVec -> W e. LVec ) | 
| 5 | 1 4 | syl | |- ( ph -> W e. LVec ) |