Subnode [[@flancian/proper-subset]] in node [[proper-subset]]

from garden/flancian/proper subset.md by @flancian

from garden/flancian/proper subset.md by @flancian

# proper subset

- S1 is a proper subset of S2 [[iif]] S2 has some items which aren't in S1. That is, they are not equal.

Subnode [[@flancian/proper-subset]] in node [[proper-subset]]

from garden/flancian/assets/proper-subset.png by @flancian

from garden/flancian/assets/proper-subset.png by @flancian