/ Reference of Built-in Symbols /
Operators without Built-in Meanings / Infix Operators without Built-in Meanings / NotSubsetEqual /

NotSubsetEqual (`⊈`)

NotSubsetEqual[x, y, ...]: displays x ⊈ y ⊈ ...

- NotSubsetEqual[x, y, z]
- a \[NotSubsetEqual] b

← NotSubset

→ NotSucceeds