Metamath Proof Explorer


Definition df-va

Description: Define vector addition on a normed complex vector space. (Contributed by NM, 23-Apr-2007) (New usage is discouraged.)

Ref Expression
Assertion df-va +v=1st1st

Detailed syntax breakdown

Step Hyp Ref Expression
0 cpv class+v
1 c1st class1st
2 1 1 ccom class1st1st
3 0 2 wceq wff+v=1st1st