Unicode: F42E. Infix set relation operator. x y is by default interpreted as NotSquareSubset[x,y].
Unicode: 22E3. Infix set relation operator. x ⋣ y is by default interpreted as NotSquareSupersetEqual[x,y].
Unicode: F42F. Infix set relation operator. x y is by default interpreted as NotSquareSuperset[x,y].
Unicode: 2288. Alias: Esc !sub= Esc. Infix set relation operator. x ⊈ y is by default interpreted as NotSubsetEqual[x,y].
Unicode: 2284. Alias: Esc !sub Esc. Infix set relation operator. x ⊄ y is by default interpreted as NotSubset[x,y].
Unicode: F42D. Infix ordering operator. x y is by default interpreted as NotSucceedsEqual[x,y].
Unicode: 2281. Infix ordering operator. x ⊁ y is by default interpreted as NotSucceeds[x,y].
Unicode: 22E1. Infix ordering operator. x ⋡ y is by default interpreted as NotSucceedsSlantEqual[x,y].
Unicode: 22E9. Infix ordering operator. x ⋩ y is by default interpreted as NotSucceedsTilde[x,y].
Unicode: 2289. Alias: Esc !sup= Esc. Infix set relation operator. x ⊉ y is by default interpreted as NotSupersetEqual[x,y].