Description: The rational numbers are contained in the algebraic numbers. (Contributed by Mario Carneiro, 23-Jul-2014)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | qssaa | |- QQ C_ AA | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | qaa | |- ( x e. QQ -> x e. AA ) | |
| 2 | 1 | ssriv | |- QQ C_ AA |