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In mathematics, specifically ring theory, a principal ideal is an ideal in a ring that is generated by a single element of through multiplication by every element of . The term also has another, similar meaning in order theory, where it refers to an (order) ideal in a poset generated by a single element , which is to say the set of all elements less than or equal to in .
Archimedes principle, relating buoyancy to the weight of displaced water, is an early example of a law in science. Another early one developed by Malthus is the population principle, now called the Malthusian principle. [8] Freud also wrote on principles, especially the reality principle necessary to keep the id and pleasure principle in check.
In philosophy and science, a first principle is a basic proposition or assumption that cannot be deduced from any other proposition or assumption. First principles in philosophy are from first cause [ 1 ] attitudes and taught by Aristotelians , and nuanced versions of first principles are referred to as postulates by Kantians .
Unlike the principal, the vice-principal does not have quite the decision-making authority that the principal carries. Although they still carry nearly the same authority among students, vice-principals do not have the same power on the board. Experience as an assistant principal is often a prerequisite for advancement to a principalship.
The principal–agent problem typically arises where the two parties have different interests and asymmetric information (the agent having more information), such that the principal cannot directly ensure that the agent is always acting in the principal's best interest, particularly when activities that are useful to the principal are costly to ...
Principal (academia), the chief executive of a university Principal (education), the head of a school; Principal (civil service) or principal officer, the senior management level in the UK Civil Service; Principal dancer, the top rank in ballet; Principal (music), the top rank in an orchestra
In the Dilbert comic strip of February 5, 1995, Dogbert says that "leadership is nature's way of removing morons from the productive flow". Adams himself explained, [1] I wrote The Dilbert Principle around the concept that in many cases the least competent, least smart people are promoted, simply because they’re the ones you don't want doing actual work.
A principal may be either gender. The position is similar to that of soloist ; however, principals regularly perform not only solos , but also pas de deux as well as headlining performances they participate in. Principal dancers can be hired into a dance company or can also be a company dancer that is a corps de ballet dancer that gets promoted ...