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Mirrors > Home > MPE Home > Th. List > halfre | Structured version Visualization version GIF version |
Description: One-half is real. (Contributed by David A. Wheeler, 8-Dec-2018.) |
Ref | Expression |
---|---|
halfre | ⊢ (1 / 2) ∈ ℝ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2re 12030 | . 2 ⊢ 2 ∈ ℝ | |
2 | 2ne0 12060 | . 2 ⊢ 2 ≠ 0 | |
3 | 1, 2 | rereccli 11723 | 1 ⊢ (1 / 2) ∈ ℝ |
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