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isSurjective(PosetMap)

Function: isSurjective
Usage:

isSurjective f
Inputs:
- f, a map of posets,
Outputs:
- a Boolean value,

See also

isInjective(PosetMap)
isRankPreserving -- whether a poset map is rank-preserving

Ways to use this method:

isSurjective(PosetMap)

The source of this document is in MacaulayPosets.m2:1624:0.