isomorphism 4 ізоморфізм 4 UDC 512.64+512.56 2 УДК 512.64+512.56 2 0-length 1 0-довжина 1 1-oversupercritical poset 1 1-надсуперкритична ч. в. множина 1 Hasse diagram 1 Klein group 1 M-equivalence 1 MM-type 1 MM-тип 1 UDC 512.546 1 UDC 512.548.7 [004.056(06)] 1 anti-isomorphism 1 canonical decomposition 1 coefficient of transitiveness 1 cyclic group 1 dense subposet 1 direct sum 1 free topological group 1 graph 1 isotopism 1 loop 1 matrix 1 minimax equivalence 1 minimax isomorphism 1 nodal element 1 oriented graph 1