The phrase "a necessary precursor for" is correct and usable in written English.
It can be used when discussing something that must occur or exist before another event or condition can happen.
Example: "Understanding the basic principles of physics is a necessary precursor for mastering advanced engineering concepts."
Alternatives: "an essential prerequisite for" or "a vital foundation for".
Understanding how a bioreactor functions is a necessary precursor for successful reactor design and operation.
Investigating how a bioreactor functions is a necessary precursor for successful reactor design and operation.
This suggests that, as in other yeast, glucose is not directly converted to cytosolic acetyl-CoA, which is a necessary precursor for (R -3-HB pR -3-HBon (De Jong-Gubbels et al. 1995; Chen et al. 2012).
For Felstiner et al. (1980) blaming - what they call 'naming' - is a necessary precursor for 'claiming' in the sense of seeking some remedy from the individual or entity held to be responsible.
Bias statistics are also a necessary precursor for reliability-based load and resistance factor design calibration for the ultimate pullout limit state in the internal stability design of geogrid reinforced soil walls.
A third attraction of conceptual analysis is that conceptual analysis has been argued to be a necessary precursor for answering questions about ontological reduction, that is, the sort of reduction that takes place when it's argued that genes are DNA segments, that sensations are brain states, and so on (Chalmers 1996, Jackson 1998).
An entry point to the stem would therefore appear to be a necessary precursor to stem invasion for this host.
As early as the 1920's, public health officials proclaimed that a valid measure of the IMR was a necessary precursor to initiating strategies for reducing infant death rates [ 1].
Better understanding of the alcohol policy environment itself (Hawkins et al., 2012) and what social scientists describe as its corporate capture (Miller and Harkins, 2010) is surely a necessary precursor to enhancing capacity for the design of effective policies that really will reduce alcohol harms.
On a visit to Qatar on Wednesday, Defence Secretary Philip Hammond, said a "political solution" to Iraq's divisions among Sunni, Shia and Kurdish factions was a "necessary precursor" to any military help for the Maliki government.
First, we hypothesized that the mean item score in "knowledge" would be higher than those in "behaviour", "outcomes/decisions" and "attitude" domains because knowledge is considered a necessary precursor, but not a sufficient guarantee, for changes in practice and outcomes.
