Description: Define vector subtraction on a normed complex vector space. (Contributed by NM, 15-Feb-2008) (New usage is discouraged.)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | df-vs | ⊢ −𝑣 = ( /𝑔 ∘ +𝑣 ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 0 | cnsb | ⊢ −𝑣 | |
| 1 | cgs | ⊢ /𝑔 | |
| 2 | cpv | ⊢ +𝑣 | |
| 3 | 1 2 | ccom | ⊢ ( /𝑔 ∘ +𝑣 ) |
| 4 | 0 3 | wceq | ⊢ −𝑣 = ( /𝑔 ∘ +𝑣 ) |