Description: Real vector spaces are subcomplex vector spaces. (Contributed by BJ, 6-Jan-2024)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | bj-rvecsscvec | |- RRVec C_ CVec | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | bj-rvecsscmod | |- RRVec C_ CMod | |
| 2 | bj-rvecssvec | |- RRVec C_ LVec | |
| 3 | 1 2 | ssini | |- RRVec C_ ( CMod i^i LVec ) | 
| 4 | df-cvs | |- CVec = ( CMod i^i LVec ) | |
| 5 | 3 4 | sseqtrri | |- RRVec C_ CVec |