Description: Surreal zero is a surreal. (Contributed by Scott Fenton, 7-Aug-2024)
Ref | Expression | ||
---|---|---|---|
Assertion | 0sno | Could not format assertion : No typesetting found for |- 0s e. No with typecode |- |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-0s | Could not format 0s = ( (/) |s (/) ) : No typesetting found for |- 0s = ( (/) |s (/) ) with typecode |- | |
2 | 0elpw | ||
3 | nulssgt | ||
4 | 2 3 | ax-mp | |
5 | scutcl | ||
6 | 4 5 | ax-mp | |
7 | 1 6 | eqeltri | Could not format 0s e. No : No typesetting found for |- 0s e. No with typecode |- |