SymmetricGroup[n] returns the symmetric group on n symbols.
TableauQ[t] yields True if and only if t represents a Young tableau.
Tableaux[p] constructs all tableaux having a shape given by integer partition p.
ThickDashed is a value that the option EdgeStyle can take on in the graph data structure or in ShowGraph.
ThinDashed is a value that the option EdgeStyle can take on in the graph data structure or in ShowGraph.
ToInversionVector[p] gives the inversion vector associated with permutation p.
TransitiveQ[g] yields True if graph g defines a transitive relation.
TransitiveReduction[g] finds a smallest graph that has the same transitive closure as g.
TransposeTableau[t] reflects a Young tableau t along the main diagonal, creating a different tableau.
TravelingSalesmanBounds[g] gives upper and lower bounds on a minimum-cost traveling salesman tour of graph g.