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Mirrors > Home > MPE Home > Th. List > 2rp | Structured version Visualization version GIF version |
Description: 2 is a positive real. (Contributed by Mario Carneiro, 28-May-2016.) |
Ref | Expression |
---|---|
2rp | ⊢ 2 ∈ ℝ+ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2re 11977 | . 2 ⊢ 2 ∈ ℝ | |
2 | 2pos 12006 | . 2 ⊢ 0 < 2 | |
3 | 1, 2 | elrpii 12662 | 1 ⊢ 2 ∈ ℝ+ |
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