The phrase "a rule in which" is correct and usable in written English.
You can use it when describing a specific type of rule or guideline that outlines a particular condition or situation.
Example: "The game has a rule in which players must pass the ball to a teammate before shooting at the goal."
Alternatives: "a rule that states" or "a guideline where".
If we implemented a rule in which we all left 1.5x car's length in front of us we could all immediately take off when the light turns green, even the furthest car.
In a comparison of monetary policy rules which allow for differential degrees of exchange rate targeting, it is found that a rule in which both countries engage in a cooperative exchange rate peg welfare-dominates a rule which allows the exchange rate to float endogenously (as well as a one-sided peg).
A cellular automaton is a dynamical system on a network whose update rule is local: every site is in one of two (or sometimes more) states, and at every time-step the system is updated according to a rule in which the new state of a site depends only on the states of the sites it is connected to.
My father-in-law, who is a mason, has a rule in which he doesn't do work for the people who live on his street.
We developed a rule in which the individual risk of delirium is obtained by adding one point for each criterion met (age≥85, high level of dependence, and being on psychotropic medication).
In March 2013, faced with litigation from about 4,000 former players who had suffered concussions, the NFL adopted a new rule in which players (in a zone outside the area where the teams line up) would be forbidden from lowering their head and crashing into opposing players with their helmets.
Americans, he said, unlike most cultures, use a hypodescent rule, in which one drop of black blood makes a person black.
The dynamics of the network is provided by a simple rule in which the state of the agents at a given time depends only on the configuration of the network at the previous time.
He cites a Senate rule in which reimbursable expenses include those for meals, lodging, cleaning of clothing and bathrooms.
"In Cambodia, the Khmer Rouge began a murderous rule in which hundreds of thousands of Cambodians died by starvation and torture and execution," Mr. Bush said.
"In Cambodia, the Khmer Rouge began a murderous rule, in which hundreds of thousands of Cambodians died by starvation and torture and execution," Mr Bush said.
