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Mirrors > Home > MPE Home > Th. List > 1p1e2 | Structured version Visualization version Unicode version |
Description: 1 + 1 = 2. (Contributed by NM, 1-Apr-2008.) |
Ref | Expression |
---|---|
1p1e2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-2 11079 | . 2 | |
2 | 1 | eqcomi 2631 | 1 |
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