Theorem comraddd 8228

Description: Commute RHS addition, in deduction form. (Contributed by David A. Wheeler, 11-Oct-2018.)

Hypotheses

Ref	Expression
comraddd.1	⊢ (𝜑 → 𝐵 ∈ ℂ)
comraddd.2	⊢ (𝜑 → 𝐶 ∈ ℂ)
comraddd.3	⊢ (𝜑 → 𝐴 = (𝐵 + 𝐶))

Assertion

Ref	Expression
comraddd	⊢ (𝜑 → 𝐴 = (𝐶 + 𝐵))

Proof of Theorem comraddd

Step	Hyp	Ref	Expression
1		comraddd.3	. 2 ⊢ (𝜑 → 𝐴 = (𝐵 + 𝐶))
2		comraddd.1	. . 3 ⊢ (𝜑 → 𝐵 ∈ ℂ)
3		comraddd.2	. . 3 ⊢ (𝜑 → 𝐶 ∈ ℂ)
4	2, 3	addcomd 8222	. 2 ⊢ (𝜑 → (𝐵 + 𝐶) = (𝐶 + 𝐵))
5	1, 4	eqtrd 2237	1 ⊢ (𝜑 → 𝐴 = (𝐶 + 𝐵))

Syntax hints:   → wi 4   = wceq 1372   ∈ wcel 2175  (class class class)co 5943  ℂcc 7922   + caddc 7927

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-5 1469  ax-gen 1471  ax-4 1532  ax-17 1548  ax-ext 2186  ax-addcom 8024

This theorem depends on definitions:  df-bi 117  df-cleq 2197

This theorem is referenced by:  mvrladdd  8438  hashfz  10964  bdtrilem  11492  clim2ser2  11591  fsumparts  11723  arisum  11751  divalglemnn  12171  phiprmpw  12486  mulgdir  13432  metrtri  14791  apdifflemr  15919