Description: A member of an upper set of integers is a real. (Contributed by Mario Carneiro, 31-Aug-2013)
Ref | Expression | ||
---|---|---|---|
Assertion | eluzelre | |- ( N e. ( ZZ>= ` M ) -> N e. RR ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eluzelz | |- ( N e. ( ZZ>= ` M ) -> N e. ZZ ) |
|
2 | 1 | zred | |- ( N e. ( ZZ>= ` M ) -> N e. RR ) |