Description: A Moore collection is a subset of the power of the base set; each closed subset of the system is actually a subset of the base. (Contributed by Stefan O'Rear, 30-Jan-2015)
Ref | Expression | ||
---|---|---|---|
Assertion | mresspw | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ismre | |
|
2 | 1 | simp1bi | |