A spokesman for the Rail Delivery Group, which represents Network Rail and train operators, questioned the logic of enforced re-nationalisation by breaking with existing contracts.
NCI Thesaurus is a concept-based terminology system that uses description logic to enforce logical consistency and provide a formal model with computationally tractable semantics [ 26].
This uses the toolset of dynamic logic (compare the entry on propositional dynamic logic) to enforce the desired behaviour: if the presupposition is not fulfilled the program aborts and otherwise the program behaves as a test for the assertion.
In addition, Mobile Researcher can also accommodate branching and skip logic as well as enforced validation in the field.
At compilation, the BZR compiler will synthesize a control logic capable of enforcing the coordination policy in the composition by acting on the controllable variable c which is an input of the automaton in Figure 6.
The worrying part is that the relative lack of bouncers, police or any kind of sober person to enforce logic upon this responsibility vacuum meant that nobody was stopping it spilling over into mob violence.
The diplomat introduced the natives to the logic of power, which soldiers enforced, planters enjoyed and traders turned to profit; but the raffish glamour of early empire, with its scarlet tunics and nabobs, its bold spirits and incalculable greed, was in little sympathy with missionary drab.
Nevertheless, he enforced solid degrees of grace, logic and propulsion en route to the finale.
If, in addition, it is required that $B$ fails to be true at some world, contraposition is enforced (see Priest 1999 and the entry on connexive logic).
Integrating logic for checking and enforcing these invariants into the application's implementation is generally done by adding appropriate code to the functional application code.
