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Mirrors > Home > MPE Home > Th. List > 2re | Structured version Visualization version GIF version |
Description: The number 2 is real. (Contributed by NM, 27-May-1999.) |
Ref | Expression |
---|---|
2re | ⊢ 2 ∈ ℝ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-2 12019 | . 2 ⊢ 2 = (1 + 1) | |
2 | 1re 10959 | . . 3 ⊢ 1 ∈ ℝ | |
3 | 2, 2 | readdcli 10974 | . 2 ⊢ (1 + 1) ∈ ℝ |
4 | 1, 3 | eqeltri 2836 | 1 ⊢ 2 ∈ ℝ |
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