Metamath Proof Explorer


Theorem vcablo

Description: Vector addition is an Abelian group operation. (Contributed by NM, 3-Nov-2006) (New usage is discouraged.)

Ref Expression
Hypothesis vcabl.1 ⊢ G = 1 st ⁡ W
Assertion vcablo ⊢ W ∈ CVec OLD → G ∈ AbelOp

Proof

Step Hyp Ref Expression
1 vcabl.1 ⊢ G = 1 st ⁡ W
2 eqid ⊢ 2 nd ⁡ W = 2 nd ⁡ W
3 eqid ⊢ ran ⁡ G = ran ⁡ G
4 1 2 3 vciOLD ⊢ W ∈ CVec OLD → G ∈ AbelOp ∧ 2 nd ⁡ W : ℂ × ran ⁡ G ⟶ ran ⁡ G ∧ ∀ x ∈ ran ⁡ G 1 2 nd ⁡ W x = x ∧ ∀ y ∈ ℂ ∀ z ∈ ran ⁡ G y 2 nd ⁡ W x G z = y 2 nd ⁡ W x G y 2 nd ⁡ W z ∧ ∀ z ∈ ℂ y + z 2 nd ⁡ W x = y 2 nd ⁡ W x G z 2 nd ⁡ W x ∧ y ⁢ z 2 nd ⁡ W x = y 2 nd ⁡ W z 2 nd ⁡ W x
5 4 simp1d ⊢ W ∈ CVec OLD → G ∈ AbelOp