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| Mirrors > Home > ILE Home > Th. List > rpred | GIF version | ||
| Description: A positive real is a real. (Contributed by Mario Carneiro, 28-May-2016.) | 
| Ref | Expression | 
|---|---|
| rpred.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ+) | 
| Ref | Expression | 
|---|---|
| rpred | ⊢ (𝜑 → 𝐴 ∈ ℝ) | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | rpssre 9739 | . 2 ⊢ ℝ+ ⊆ ℝ | |
| 2 | rpred.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ+) | |
| 3 | 1, 2 | sselid 3181 | 1 ⊢ (𝜑 → 𝐴 ∈ ℝ) | 
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