The phrase "as a first prerequisite" is correct and usable in written English.
It can be used when emphasizing the initial requirement or condition that must be met before proceeding with something else.
Example: "As a first prerequisite, all applicants must submit their resumes before the interview process begins."
Alternatives: "as an initial requirement" or "as a primary condition".
As a second prerequisite to the proposed approach, we have to convert gene-to-GO-term annotations for the chosen organism to a format which is suitable for inference.
A first prerequisite is to separate funding from supervision.
A second prerequisite was "shared values": of respect, quality, responsible behaviour and community.
Biology 112: Unicellular Life is a first-year biology course at the University of British Columbia that serves as a first-year prerequisite for second-year cell biology and introductory biochemistry, which themselves serve as prerequisites to a large number of upper-level courses in biology, microbiology, and biochemistry.
As the first prerequisite for modular healthcare offerings it should be possible to distinguish modules: independent, interchangeable parts in the residential care that all bring about one function of the care.
Finding a safe and scientifically valuable landing site is the first prerequisite to a lander mission.
The first prerequisite for an unbiased mixture is high diversity.
The first stimulation did not induce neurite extension, whereas the second stimulation induced fast neurite extension; therefore, the first stimulation is likely required as a prerequisite condition.
The first prerequisite for protecting the environment is a functioning democracy.
The axiomatic approach takes fields (whence rings, whence groups) as a prerequisite; it first defines a notion of R-module as an abelian group with a scalar multiplication over a given ring R, and then defines a vector space to be an R-module for which R is a field.
