\[MinusPlus] (Mathematica Character Name)

Unicode: 2213. Alias: Esc -+ Esc. Prefix or infix operator. ∓ x is by default interpreted as MinusPlus[x]. x ∓ y is by default interpreted as MinusPlus[x,y].

\[Nand] (Mathematica Character Name)

Unicode: 22BC. Alias: Esc nand Esc. Infix operator with built-in evaluation rules. x ⊼ y is by default interpreted as Nand[x,y].

\[NestedGreaterGreater] (Mathematica Character Name)

Unicode: 2AA2. Infix ordering operator. x ⪢ y is by default interpreted as NestedGreaterGreater[x,y].

\[NestedLessLess] (Mathematica Character Name)

Unicode: 2AA1. Infix ordering operator. x ⪡ y is by default interpreted as NestedLessLess[x,y]. Used to denote "much less than". Occasionally used in measure theory to denote ...

\[NeutralSmiley] (Mathematica Character Name)

Unicode: F722. Alias: Esc :-| Esc. Letter-like form.

\[Nor] (Mathematica Character Name)

Unicode: 22BD. Alias: Esc nor Esc. Infix operator with built-in evaluation rules. x ⊽ y is by default interpreted as Nor[x,y].

\[NotCongruent] (Mathematica Character Name)

Unicode: 2262. Alias: Esc !=== Esc. Infix similarity operator. x ≢ y is by default interpreted as NotCongruent[x,y].

\[NotCupCap] (Mathematica Character Name)

Unicode: 226D. Infix similarity operator. x ≭ y is by default interpreted as NotCupCap[x,y].

\[NotDoubleVerticalBar] (Mathematica Character Name)

Unicode: 2226. Alias: Esc !|| Esc. Infix operator. x ∦ y is by default interpreted as NotDoubleVerticalBar[x,y]. Used in geometry to mean "not parallel to".

\[NotEqualTilde] (Mathematica Character Name)

Unicode: F400. Alias: Esc !=~ Esc. Infix similarity operator. x  y is by default interpreted as NotEqualTilde[x,y].