MathML Test : Elements and subsets

This is a test to check if symbols used for elements and subsets can be displayed.

Element : $x \in X$
NotElement : $x \notin Y$
ReverseElement : $X ∋ x$
NotReverseElement : $Y ∌ x$
NotSubset : $Z \subset⃒ Y$
Superset : $Z \supset Y$
NotSuperset : $Y \supset⃒ Z$
subset of : $Y \subset Z$
subset of with vertical line : $Z \subset⃒ Y$
not a subset of : $Z ⊄ Y$
SubsetEqual : $Y \subseteq Z$
SupersetEqual : $Z \supseteq Y$
NotSubsetEqual : $Z ⊈ Y$
NotSupersetEqual : $Y ⊉ Z$
subset of with not equal to : $Y ⊊ Z$
subset of with not equal to - variant with stroke through bottom members : $Z ⊊︀ Y$
SquareSubset : $Y ⊏ Z$
NotSquareSubset : $Z ⊏̸ Y$
SquareSuperset : $Z ⊐ Y$
SquareSubsetEqual : $Y ⊑ Z$
SquareSupersetEqual : $Z ⊒ Y$
Subset : $Y ⋐ Z$
NotSquareSubsetEqual : $Z ⋢ Y$
NotSquareSupersetEqual : $Y ⋣ Z$