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| Mirrors > Home > MPE Home > Th. List > 1p1e2 | Structured version Visualization version GIF version | ||
| Description: 1 + 1 = 2. (Contributed by NM, 1-Apr-2008.) |
| Ref | Expression |
|---|---|
| 1p1e2 | ⊢ (1 + 1) = 2 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-2 12329 | . 2 ⊢ 2 = (1 + 1) | |
| 2 | 1 | eqcomi 2746 | 1 ⊢ (1 + 1) = 2 |
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