Theorem addid1i 8040

Description: 0 is an additive identity. (Contributed by NM, 23-Nov-1994.) (Revised by Scott Fenton, 3-Jan-2013.)

Hypothesis

Ref	Expression
mul.1	⊢ 𝐴 ∈ ℂ

Assertion

Ref	Expression
addid1i	⊢ (𝐴 + 0) = 𝐴

Proof of Theorem addid1i

Step	Hyp	Ref	Expression
1		mul.1	. 2 ⊢ 𝐴 ∈ ℂ
2		addid1 8036	. 2 ⊢ (𝐴 ∈ ℂ → (𝐴 + 0) = 𝐴)
3	1, 2	ax-mp 5	1 ⊢ (𝐴 + 0) = 𝐴

Syntax hints:   = wceq 1343   ∈ wcel 2136  (class class class)co 5842  ℂcc 7751  0cc0 7753   + caddc 7756

This theorem was proved from axioms:  ax-mp 5  ax-0id 7861

This theorem is referenced by:  1p0e1  8973  9p1e10  9324  num0u  9332  numnncl2  9344  decrmanc  9378  decaddi  9381  decaddci  9382  decmul1  9385  decmulnc  9388  fsumrelem  11412  demoivreALT  11714  sinhalfpilem  13352  efipi  13362