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 ) ) |
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 ) ) |