Анотація:
The contribution deals with different formal specifications of logic system that are
used for solving of analysis, synthesis and diagnostics tasks. Particular attention is given to
analysis of applicability of separate description for the purpose of system decomposition. The
data structure for algebraic expressions with context-free grammar utilization is also defined
in the contribution. We also propose algorithm of de/composition of logical systems specified
by this expression and finally a procedure for identical and isomorphic circuit search.