Description: A non-negative surreal integer is a surreal. (Contributed by Scott Fenton, 15-Apr-2025)
Ref | Expression | ||
---|---|---|---|
Hypothesis | n0snod.1 | |- ( ph -> A e. NN0_s ) |
|
Assertion | n0snod | |- ( ph -> A e. No ) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | n0snod.1 | |- ( ph -> A e. NN0_s ) |
|
2 | n0sno | |- ( A e. NN0_s -> A e. No ) |
|
3 | 1 2 | syl | |- ( ph -> A e. No ) |