The phrase "a primary rule" is correct and usable in written English.
It can be used when referring to a fundamental or essential guideline that governs behavior or actions in a specific context.
Example: "In our organization, a primary rule is to always prioritize safety over speed."
Alternatives: "a fundamental guideline" or "a key principle".
But there was another puzzling thing about the crooked-psychic story: the fortune-teller failed to follow a primary rule of tradecraft.
"Function creep is a primary rule of databases and identifiers," said Barry Steinhardt, associate director of the American Civil Liberties Union, citing how the Social Security number, originally meant for old-age benefits, has become a universal identifier for financial and other transactions.
Yet the middle management held me back because I didn't recognize they were my stakeholders and even though my vision was realized eventually, it took far longer than needed because I ignored a primary rule of leadership.
But Mc Cain's failure to look at his opponent was not only dismissive, it violated a primary rule of debate tactics--or is that a strategy?
However, the patterns belonging to a low certainty primary rule get further split into a subset of secondary rules that use an extended set of attributes.
And he offers a very useful primary rule: Set aside money first for long-term goals — like your retirement and your children's college educations — and determine your standard of living based on what's left over.
As a result of the primary rule set generation, a ranked set of r max (C, S) rules was generated using the criterion RI r > 0.
The well-known classification and regression trees (CART) algorithm is employed as a fast preprocess of structure identification, which divides the input space into high certainty and low certainty regions, each representing a primary fuzzy rule.
Runt is a primary pair rule gene involved in segmentation, sex determination and neurogenesis, whereas lozenge is a key regulator of patterning in the eye (reviewed in [ 3]).
This primary rule set was pruned to a set of 29 rules, whose performance is displayed in Figure 2B,C.
By hurrying himself up, he violated the primary rule of Gilbert's "Winning Ugly" — a rule that Gilbert restates often in the book, and even leaves as its last words: "Don't Rush.
