Metamath Proof Explorer


Theorem rprene0

Description: A positive real is a nonzero real number. (Contributed by NM, 11-Nov-2008)

Ref Expression
Assertion rprene0 ( 𝐴 ∈ ℝ+ → ( 𝐴 ∈ ℝ ∧ 𝐴 ≠ 0 ) )

Proof

Step Hyp Ref Expression
1 rpre ⊢ ( 𝐴 ∈ ℝ+ → 𝐴 ∈ ℝ )
2 rpne0 ⊢ ( 𝐴 ∈ ℝ+ → 𝐴 ≠ 0 )
3 1 2 jca ⊢ ( 𝐴 ∈ ℝ+ → ( 𝐴 ∈ ℝ ∧ 𝐴 ≠ 0 ) )