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MapExpression -- the class of map expressions

Description

MapExpression is a type of Expression representing a map.

i1 : MapExpression {a,b,c}

o1 = a <----- b
          c

o1 : Expression of class MapExpression

For the programmer

The object MapExpression is a header type, with ancestor classes Expression < BasicList < Thing.

The source of this document is in Macaulay2Doc/doc12.m2:132:0.