Theorem hvaddlid 30832

Description: Addition with the zero vector. (Contributed by NM, 18-Oct-1999.) (New usage is discouraged.)

Assertion

Ref	Expression
hvaddlid	⊢ (𝐴 ∈ ℋ → (0ℎ +ℎ 𝐴) = 𝐴)

Proof of Theorem hvaddlid

Step	Hyp	Ref	Expression
1		ax-hv0cl 30812	. . 3 ⊢ 0ℎ ∈ ℋ
2		ax-hvcom 30810	. . 3 ⊢ ((𝐴 ∈ ℋ ∧ 0ℎ ∈ ℋ) → (𝐴 +ℎ 0ℎ) = (0ℎ +ℎ 𝐴))
3	1, 2	mpan2 690	. 2 ⊢ (𝐴 ∈ ℋ → (𝐴 +ℎ 0ℎ) = (0ℎ +ℎ 𝐴))
4		ax-hvaddid 30813	. 2 ⊢ (𝐴 ∈ ℋ → (𝐴 +ℎ 0ℎ) = 𝐴)
5	3, 4	eqtr3d 2770	1 ⊢ (𝐴 ∈ ℋ → (0ℎ +ℎ 𝐴) = 𝐴)

Syntax hints:   → wi 4   = wceq 1534   ∈ wcel 2099  (class class class)co 7420   ℋchba 30728   +_ℎ cva 30729  0_ℎc0v 30733

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1790  ax-4 1804  ax-5 1906  ax-6 1964  ax-7 2004  ax-9 2109  ax-ext 2699  ax-hvcom 30810  ax-hv0cl 30812  ax-hvaddid 30813

This theorem depends on definitions:  df-bi 206  df-an 396  df-ex 1775  df-cleq 2720

This theorem is referenced by:  hv2neg  30837  hvaddlidi  30838  hvaddsub4  30887  hilablo  30969  hilid  30970  shunssi  31177  spanunsni  31388  5oalem2  31464  3oalem2  31472