Metamath Proof Explorer


Theorem rpge0d

Description: A positive real is greater than or equal to zero. (Contributed by Mario Carneiro, 28-May-2016)

Ref Expression
Hypothesis rpred.1 ( 𝜑𝐴 ∈ ℝ+ )
Assertion rpge0d ( 𝜑 → 0 ≤ 𝐴 )

Proof

Step Hyp Ref Expression
1 rpred.1 ( 𝜑𝐴 ∈ ℝ+ )
2 rpge0 ( 𝐴 ∈ ℝ+ → 0 ≤ 𝐴 )
3 1 2 syl ( 𝜑 → 0 ≤ 𝐴 )