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Description: The set of reals is nonempty. (Contributed by Glauco Siliprandi, 23-Oct-2021)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | ren0 | ⊢ ℝ ≠ ∅ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0re | ⊢ 0 ∈ ℝ | |
| 2 | 1 | ne0ii | ⊢ ℝ ≠ ∅ |