This is an inofficial mirror of http://metamath.tirix.org for personal testing of a visualizer extension only.
Description: A finite set of sequential integers that is a subset of NN0 . (Contributed by Glauco Siliprandi, 5-Apr-2020)
| Ref | Expression | ||
|---|---|---|---|
| Assertion | fzssnn0 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fzssuz | ||
| 2 | nn0uz | ||
| 3 | 2 | eqcomi | |
| 4 | 1 3 | sseqtri |