Description: The Eisenstein integers are a subset of the complex numbers. (Contributed by AV, 26-Oct-2026)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | ezsscn | ⊢ ( Z[]l ‘ ( bRoU ‘ 3 ) ) ⊆ ℂ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ezsubrg | ⊢ ( Z[]l ‘ ( bRoU ‘ 3 ) ) ∈ ( SubRing ‘ ℂfld ) | |
| 2 | subrgccsscc | ⊢ ( ( Z[]l ‘ ( bRoU ‘ 3 ) ) ∈ ( SubRing ‘ ℂfld ) → ( Z[]l ‘ ( bRoU ‘ 3 ) ) ⊆ ℂ ) | |
| 3 | 1 2 | ax-mp | ⊢ ( Z[]l ‘ ( bRoU ‘ 3 ) ) ⊆ ℂ |