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meetIrreducibles -- determines the meet irreducible elements of a poset

Usage:

M = meetIrreducibles P
Inputs:
- P, an instance of the type Poset,
Outputs:
- M, a list,

Description

An element $a$ of $P$ is meet irreducible if it is not the meet of any set of elements not containing $a$.

i1 : meetIrreducibles booleanLattice 3

o1 = {110, 011, 111, 101}

o1 : List

See also

joinIrreducibles -- determines the join irreducible elements of a poset
meetExists -- determines if the meet exists for two elements of a poset
posetMeet -- determines the meet for two elements of a poset

Ways to use meetIrreducibles:

meetIrreducibles(Poset)

For the programmer

The object meetIrreducibles is a method function.

The source of this document is in Posets.m2:4457:0.