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Description: The positive reals are a subset of the complex numbers. (Contributed by SN, 1-Oct-2025)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | rpsscn | ⊢ ℝ+ ⊆ ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rpssre | ⊢ ℝ+ ⊆ ℝ | |
| 2 | ax-resscn | ⊢ ℝ ⊆ ℂ | |
| 3 | 1 2 | sstri | ⊢ ℝ+ ⊆ ℂ |