Description: Made sets are surreals. (Contributed by Scott Fenton, 9-Oct-2024)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | madessno | |- ( _Made ` A ) C_ No |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | madef | |- _Made : On --> ~P No |
|
| 2 | 0elpw | |- (/) e. ~P No |
|
| 3 | 1 2 | f0cli | |- ( _Made ` A ) e. ~P No |
| 4 | elpwi | |- ( ( _Made ` A ) e. ~P No -> ( _Made ` A ) C_ No ) |
|
| 5 | 3 4 | ax-mp | |- ( _Made ` A ) C_ No |