Theorem div1i

Description: A number divided by 1 is itself. (Contributed by NM, 9-Jan-2002)

	Ref	Expression
Hypothesis	divclz.1	⊢ 𝐴 ∈ ℂ
Assertion	div1i	⊢ ( 𝐴 / 1 ) = 𝐴

Proof

Step	Hyp	Ref	Expression
1		divclz.1	⊢ 𝐴 ∈ ℂ
2		div1	⊢ ( 𝐴 ∈ ℂ → ( 𝐴 / 1 ) = 𝐴 )
3	1 2	ax-mp	⊢ ( 𝐴 / 1 ) = 𝐴