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Description: The square of 5 is 25. (Contributed by SN, 26-Aug-2025)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | sq5 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 5cn | ||
| 2 | 1 | sqvali | |
| 3 | 5t5e25 | ||
| 4 | 2 3 | eqtri |