Logic programming that computational steps cannot be logically deduced. However, in concurrent logic programming, any result of a terminating computation is a logical consequence of the program, and any partial result of a partial computation is a logical consequence of the program and the residual goal (process network). Consequently, the indeterminacy of computations implies that not all logical consequences of the program can be deduced. Concurrent constraint logic programming combines concurrent logic programming and constraint logic programming, using constraints to control concurrency. A clause can contain a guard, which is a set of constraints that may block the applicability of the clause.
Combinational logic a product of sums. Consider the following truth table: Using sum of products, all logical statements which yield true results are summed, giving the result: Using Boolean algebra, the result simplifies to the following equivalent of the truth table: Minimization (simplification) of combinational logic formulas is done using the following rules based on the laws of Boolean algebra: With the use of minimization (sometimes called logic optimization), a simplified logical function or circuit may be arrived upon, and the logic combinational circuit becomes smaller, and easier to analyse, use, or build. Combinational logic In digital circuit theory, combinational logic (sometimes