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 ) |