Description: Any set is the smallest of all sets that include it. (Contributed by NM, 20-Sep-2003)
Ref | Expression | ||
---|---|---|---|
Hypothesis | intmin2.1 | |
|
Assertion | intmin2 | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | intmin2.1 | |
|
2 | rabab | |
|
3 | 2 | inteqi | |
4 | intmin | |
|
5 | 1 4 | ax-mp | |
6 | 3 5 | eqtr3i | |