CircleDot (Built-in Mathematica Symbol)

CircleDot[x, y, ...] displays as x\[CircleDot]y\[CircleDot]....

CircleTimes (Built-in Mathematica Symbol)

CircleTimes[x] displays as \[CircleTimes]x.CircleTimes[x, y, ...] displays as x\[CircleTimes]y\[CircleTimes]....

Colon (Built-in Mathematica Symbol)

Colon[x, y, ...] displays as x \[Colon] y \[Colon] ....

Congruent (Built-in Mathematica Symbol)

Congruent[x, y, ...] displays as x \[Congruent] y \[Congruent] ....

ConwayGroupCo1 (Built-in Mathematica Symbol)

ConwayGroupCo1[] represents the sporadic simple Conway group Co_1.

Coproduct (Built-in Mathematica Symbol)

Coproduct[x, y, ...] displays as x\[Coproduct]y\[Coproduct]....

CupCap (Built-in Mathematica Symbol)

CupCap[x, y, ...] displays as x \[CupCap] y \[CupCap] ....

Cup (Built-in Mathematica Symbol)

Cup[x, y, ...] displays as x\[Cup]y\[Cup]....

Del (Built-in Mathematica Symbol)

Del[x] displays as \[Del]x.

Diamond (Built-in Mathematica Symbol)

Diamond[x, y, ...] displays as x\[Diamond]y\[Diamond]....