• Skeleton[n] represents a sequence of n omitted elements in an expression printed with Short or Shallow.
• The standard print form for Skeleton is n.
• In StandardForm
is by default printed using \[LeftSkeleton]
• You can reset the print form of Skeleton.
indicates the presence of missing information, and so generates an error if you try to interpret it as Mathematica
• New in Version 1; modified in 3.