The phrase "dual rules" is correct and usable in written English.
It usually refers to two sets of regulations that both apply to the same situation. For example, "Companies must adhere to both federal and state dual rules to remain compliant."
But their tandem created new problems: Corrupt bureaucrats saw in this dual rule new ways to avoid responsibility and steal.
Use a dual rule for (sqcup ) and "or -sets.
Given a rule (varphi,) its dual rule distributes "what is missing" in the same way that (varphi ) divides "what is available" (Aumann and Maschler 1985).
We call this Lorenz mediation, which involves: (1) a set of properties, (mathcal {P}) (legitimate principles); and (2) an admissible zone delimited by the Lorenz maximal rule in (mathcal {P}, F = mathcal {L}), and its dual rule, (F^d = mathcal {L}^d).
First, a group of properties are accepted by a particular society (either these properties can be assumed by the agents involved in the problem, or they can be established by law).2 Then, among the rules fulfilling these properties, a reference rule (F) and its dual rule (F^d) delimit the set of proposals that are admissible by a particular mediator.
Dual rule-out (ECG-gated) CT, tailored to rule out aortic dissection and pulmonary embolism, as well as triple rule-out CT, additionally for ruling out significant coronary artery disease, have shown their value in the diagnostic process, also by suggesting alternative diagnoses.
Jogaila's succession, however, soon placed this system of dual rule under strain.
This dual rule eventually failed and the two waged a new civil war further diminishing what was left of Byzantium's integrity in the eyes of her troublesome neighbors.
Soliola's place is expected to be taken by the young centre Chris Dean, who will return from Widnes Vikings, where he played last week under the new dual registration rules.
