Description: Comparison of a surreal and its negative to zero. (Contributed by Scott Fenton, 10-Mar-2025)
Ref | Expression | ||
---|---|---|---|
Hypothesis | slt0neg2d.1 | ||
Assertion | slt0neg2d |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | slt0neg2d.1 | ||
2 | 0sno | ||
3 | sltneg | ||
4 | 2 1 3 | sylancr | |
5 | negs0s | ||
6 | 5 | breq2i | |
7 | 4 6 | bitrdi |