3 ms·
You don't even need the unit circle. The unit interval is enough, as is any set whose cardinality is aleph-1.
by lisper 6y ago
You don't even need the unit circle. The unit interval is enough, as is any set whose cardinality is aleph-1.
- alisonkisk 6y agoParent (who meant disc not circle) didn't give a dimension. An interval is just a 1 dimensional disc.