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