LyonsGroupLy[] represents the sporadic simple Lyons group Ly.
MachinePrecision is a symbol used to indicate machine-number precision.
MatchingDissimilarity[u, v] gives the matching dissimilarity between Boolean vectors u and v.
Minus
(Built-in Mathematica Symbol) -x is the arithmetic negation of x.
MonsterGroupM[] represents the sporadic simple monster group M.
NCache
(Built-in Mathematica Symbol) NCache[x, xn] represents a numeric cache object for a quantity with exact value x and approximate numerical value xn.
Negative[x] gives True if x is a negative number.
NonNegative[x] gives True if x is a non-negative number.
NonPositive[x] gives True if x is a non-positive number.
NotebookBrowseDirectory is a global option that determines the current working directory.