\[PrecedesSlantEqual] (Mathematica Character Name)

Unicode: 227C. Infix ordering operator. x ≼ y is by default interpreted as PrecedesSlantEqual[x,y].

\[PrecedesTilde] (Mathematica Character Name)

Unicode: 227E. Infix ordering operator. x ≾ y is by default interpreted as PrecedesTilde[x,y].

\[Proportion] (Mathematica Character Name)

Unicode: 2237. Infix relational operator. x ∷ y is by default interpreted as Proportion[x,y]. Used historically to indicate equality; now used to indicate proportion.

\[RawSlash] (Mathematica Character Name)

Unicode: 002F. Raw operator. Equivalent to the ordinary ASCII character with code 47. Extensible character; grows by default to limited size.

\[RawTilde] (Mathematica Character Name)

Unicode: 007E. Raw operator. Equivalent to the ordinary ASCII character with code 126. In addition to one-dimensional uses, OverscriptBox[x, ~] is by default interpreted as ...

\[ReverseElement] (Mathematica Character Name)

Unicode: 220B. Alias: Esc mem Esc. Infix set relation operator. x ∋ y is by default interpreted as ReverseElement[x,y]. Not the same as \[SuchThat].

\[ReverseEquilibrium] (Mathematica Character Name)

Unicode: 21CB. Infix arrow-like operator. x ⇋ y is by default interpreted as ReverseEquilibrium[x,y]. Extensible character.

\[ReverseUpEquilibrium] (Mathematica Character Name)

Unicode: 296F. Infix arrow-like operator. x ⥯ y is by default interpreted as ReverseUpEquilibrium[x,y]. Extensible character.

\[RightArrowBar] (Mathematica Character Name)

Unicode: 21E5. Infix arrow operator. x ⇥ y is by default interpreted as RightArrowBar[x,y]. Used in mathematics to indicate an epimorphism. Sometimes used to indicate a tab. ...

\[RightArrowLeftArrow] (Mathematica Character Name)

Unicode: 21C4. Infix arrow operator. x ⇄ y is by default interpreted as RightArrowLeftArrow[x,y]. Extensible character.