Political Culture

the difference between a subset and a proper subset

Since ASCII ⊊ unicode, I don't know if there are ASCII codes for subset and proper subset. There are Unicode characters for subset and proper subset though:

Subset: ⊂, ⊂, ⊂

Subset (or equal): ⊆, ⊆, ⊆

Proper subset: ⊊, ⊊,

Because every set is a subset of itself. A proper subset cannot, however, be a proper subset of itself.

A is a subset of a set B if every element of A is also an element of B.