The phrase "a prerequisite to a" is correct and usable in written English.
It can be used when discussing something that is required or necessary before another action or condition can occur.
Example: "Completing the introductory course is a prerequisite to a more advanced study in the subject."
Alternatives: "a requirement for a" or "a condition for a".
Employers need to buy in to the concept that more vacation time is a prerequisite to a productive work force.
As long as a top-rated school is a prerequisite to a seven-figure salary, there will be lists to help the decision makers choose the fortunate few.
Hamas has rejected any linkage between the reopening of the passages and the case of Corporal Shalit, and it insists on the reopening as a prerequisite to a lasting cease-fire.
Each will have spent nine months earning a Child Development Associate credential, a prerequisite to a job at a day care center or a pre-school program like Head Start.
The reason I am doing the PR application is partly for some "irrational assurance" in these uncertain times where just anything seems possible, and partly as it's a prerequisite to a UK citizenship application.
Maybe Governor Paterson's new fame will convince the populace that perfect vision, hearing or motor skills needn't be a prerequisite to a deserved major role on the political scene.
Under a 1999 agreement signed in Lusaka, Zambia, starting talks among Congolese political factions, armed and unarmed, was made a prerequisite to an overall peace settlement.
In Albuquerque, where some sex offenders have been banned from libraries since 2008, with some exceptions, the police have never even issued a trespass notice, a prerequisite to an arrest.
For instance, U18 and U21 belong to two cellulars simultaneously, so cellular selecting is a prerequisite to an anonymous process.
The knowledge of the irradiance level for a site is a prerequisite to any setup of a solar power system.
In fact, it is a prerequisite to creating an environment that respects and protects girls' rights.
