Description: A positive real is a nonnegative real number. (Contributed by Mario Carneiro, 31-Jan-2014)
Ref | Expression | ||
---|---|---|---|
Assertion | rprege0 | ⊢ ( 𝐴 ∈ ℝ+ → ( 𝐴 ∈ ℝ ∧ 0 ≤ 𝐴 ) ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rpre | ⊢ ( 𝐴 ∈ ℝ+ → 𝐴 ∈ ℝ ) | |
2 | rpge0 | ⊢ ( 𝐴 ∈ ℝ+ → 0 ≤ 𝐴 ) | |
3 | 1 2 | jca | ⊢ ( 𝐴 ∈ ℝ+ → ( 𝐴 ∈ ℝ ∧ 0 ≤ 𝐴 ) ) |