Description: A finite sequence of integers is a set of complex numbers. (Contributed by Glauco Siliprandi, 5-Apr-2020)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | fzsscn | |- ( M ... N ) C_ CC | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | fzssz | |- ( M ... N ) C_ ZZ | |
| 2 | zsscn | |- ZZ C_ CC | |
| 3 | 1 2 | sstri | |- ( M ... N ) C_ CC |