Definition df-vs 28680

Description: Define vector subtraction on a normed complex vector space. (Contributed by NM, 15-Feb-2008.) (New usage is discouraged.)

Assertion

Ref	Expression
df-vs	⊢ −𝑣 = ( /𝑔 ∘ +𝑣 )

Detailed syntax breakdown of Definition df-vs

Step	Hyp	Ref	Expression
1		cnsb 28670	. 2 class −𝑣
2		cgs 28573	. . 3 class /𝑔
3		cpv 28666	. . 3 class +𝑣
4	2, 3	ccom 5555	. 2 class ( /𝑔 ∘ +𝑣 )
5	1, 4	wceq 1543	1 wff −𝑣 = ( /𝑔 ∘ +𝑣 )

This definition is referenced by:  vsfval  28714