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Axiom ax-0id 8288
Description: 0 is an identity element for real addition. Axiom for real and complex numbers, justified by Theorem ax0id 8246.

Proofs should normally use addrid 8466 instead. (New usage is discouraged.) (Contributed by Jim Kingdon, 16-Jan-2020.)

Assertion
Ref Expression
ax-0id (𝐴 ∈ ℂ → (𝐴 + 0) = 𝐴)

Detailed syntax breakdown of Axiom ax-0id
StepHypRef Expression
1 cA . . 3 class 𝐴
2 cc 8178 . . 3 class ℂ
31, 2wcel 2209 . 2 wff 𝐴 ∈ ℂ
4 cc0 8180 . . . 4 class 0
5 caddc 8183 . . . 4 class +
61, 4, 5co 6085 . . 3 class (𝐴 + 0)
76, 1wceq 1402 . 2 wff (𝐴 + 0) = 𝐴
83, 7wi 4 1 wff (𝐴 ∈ ℂ → (𝐴 + 0) = 𝐴)
Colors of variables:    wff set class
This axiom is used by:  addrid  8466
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