ab initio
from the beginning (Latin)
Ab Initio
Ab initio
The
Latin term ab initio means from the beginning and is used in several contexts:when describing literature: told from the beginning as opposed to
in medias res (meaning starting in the middle of the story)as a legal term: refers to something being the case from the start or from the instant of the act, rather than from when the court declared it so. A judicial declaration of the invalidity of a marriage ab initio is a
nullity.in science: A calculation is said to be "ab initio" (or "from
first principles") if it relies on basic and established laws of nature without additional assumptions or special models.
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Ab Initio
from first principles. An ab initio calculation is a calculation derived from first principles.
Ab initio
Ab Initio
Lat. 'from the beginning'. Usually used in reference to contracts, estates, trespasses and deeds to indicate their existence or validity relates back to their creation like an (unlawful) marriage 'ab initio' meaning the marriage was void during its entire alleged existence.
When a man enters upon lands or into the house of another by authority of law, and afterwards abuses that authority, he becomes a trespasser ab initio. And if an officer neglects to remove goods attached within a reasonable time and continues in possession, his entry becomes a trespass ab initio. But in case of an authority in fact, to enter, an abuse of such authority will not, in general, subject the party to an action of trespass.
This entry contains material from Bouvier's Legal Dictionary, a work published in the 1850's.