Description: A positive integer is a real number. (Contributed by NM, 18-Aug-1999)
Ref | Expression | ||
---|---|---|---|
Assertion | nnre | $${\u22a2}{A}\in \mathbb{N}\to {A}\in \mathbb{R}$$ |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nnssre | $${\u22a2}\mathbb{N}\subseteq \mathbb{R}$$ | |
2 | 1 | sseli | $${\u22a2}{A}\in \mathbb{N}\to {A}\in \mathbb{R}$$ |