Description: The closed unit interval is a subset of the set of the complex numbers. Useful lemma for manipulating probabilities within the closed unit interval. (Contributed by Thierry Arnoux, 12-Dec-2016)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | unitsscn | |- ( 0 [,] 1 ) C_ CC |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | unitssre | |- ( 0 [,] 1 ) C_ RR |
|
| 2 | ax-resscn | |- RR C_ CC |
|
| 3 | 1 2 | sstri | |- ( 0 [,] 1 ) C_ CC |