# a priori

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Related to A-priori: À priori

## a pri·o·ri

(ä′ prē-ôr′ē, ā′ prī-ôr′ī)
1. Proceeding from a known or assumed cause to a necessarily related effect; deductive.
2.
a. Derived by or designating the process of reasoning without reference to particular facts or experience.
b. Knowable without appeal to particular experience.
3. Made before or without examination; not supported by factual study.

[Medieval Latin ā priōrī : Latin ā, from + Latin priōrī, ablative of prior, former.]

a′ pri·or′i·ty (-ôr′ĭ-tē, -ŏr′-) n.

## a priori

(eɪ praɪˈɔːraɪ; ɑː prɪˈɔːrɪ)
1. (Logic) logic relating to or involving deductive reasoning from a general principle to the expected facts or effects
2. (Logic) logic known to be true independently of or in advance of experience of the subject matter; requiring no evidence for its validation or support
3. (Statistics) statistics See prior probability, mathematical probability
[C18: from Latin, literally: from the previous (that is, from cause to effect)]
apriority n

## a pri•o•ri

(ˌeɪ praɪˈɔr aɪ, -ˈoʊr aɪ, ˌeɪ priˈɔr i, -ˈoʊr i, ˌɑ priˈɔr i, -ˈoʊr i)
1. from a general law to a particular instance; valid independently of observation. Compare a posteriori (def. 1).
2. existing in the mind independent of experience.
3. conceived beforehand.
[1645–55; < Latin: literally, from the one before. See a-4, prior1]
a•pri•or•i•ty (-ˈɔr ɪ ti -ˈɒr-) n.

## a priori

A Latin phrase meaning from the previous, used to mean deduced or known to be true.
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Adj. 1 a priori - involving deductive reasoning from a general principle to a necessary effect; not supported by fact; "an a priori judgment"analytical, analytic - of a proposition that is necessarily true independent of fact or experience; "`all spinsters are unmarried' is an analytic proposition"deductive - involving inferences from general principlesa posteriori - involving reasoning from facts or particulars to general principles or from effects to causes; "a posteriori demonstration" 2 a priori - based on hypothesis or theory rather than experimenttheoretic, theoretical - concerned primarily with theories or hypotheses rather than practical considerations; "theoretical science" Adv. 1 a priori - derived by logic, without observed factsa posteriori - derived from observed facts

## a priori

adjective There is no a priori hypothesis to work with.
adverb One assumes, a priori, that a parent would be better at dealing with problems.
Translations
a priori
אפריורי
a priori
z góry
a priori
önsel

[eɪpraɪˈɔːraɪ]

## a priori

[ɑːprɪˈɔːrɪ] adj (frm) (argument) → a priori; (judgment, statement) → aprioristico/a
an a priori decision →
References in periodicals archive ?
Model-assisted diagnostic tools take a-priori, model-predicted and in-situ obtained information into account to fully exploit the information contained in full matrix capture (FMC) acquisitions, using adaptive imaging methods, backscatter filtering and inversion strategies.
mathematical expression not reproducible] (i) is the a-priori probability of bit i resulting from the channel extrinsic information and input to the first decoder.
Although there have been some very impressive examples of autonomous or near-autonomous operation using a combination of a-priori maps and data from these sensor suites, the environments in which they operate are highly constrained and full autonomy is not achievable in the short term.
A-priori sample size was calculated [19] minimum required sample 64 was obtained.
Si le desir de retrouver le pays d'origine, plus de vingt ans apres, a renforce cette envie pour Elias Djemil, le challenge a ete pour tous d'aller voir de visu un des pays qui composent ce monde [beaucoup moins que] bizarre [beaucoup plus grand que] pour l'Occidental que l'on appelle [beaucoup moins que] arabe [beaucoup plus grand que] ou [beaucoup moins que] musulman [beaucoup plus grand que] et tordre le cou, au moins le temps d'un court metrage, a bien des a-priori que la societe, canadienne en l'occurrence, cultive a travers ses medias, sa culture et son regard sur l'immigration.
The topics include some gauge-theory and analytic preliminaries, proof of the main a-priori estimate, the construction of the half-wave operators, the dispersive estimate, decomposable function spaces and some applications, and completing the proof.
The benefit of Dworkin's approach is that he argues against moral relativism or nihilism without a reference to an a-priori moral metaphysical anchor or a divine entity.
En este sentido, para el pensador mendocino la filosofia debe entenderse como una practica teorica universal, que no tiene un comienzo geografico temporal en la antigua Grecia, sino que reconoce una serie de comienzos y re-comienzos en diferentes partes del globo y en diversas etapas historicas, como expresion del a-priori antropologico de la pluralidad de comunidades humanas.
However these methods (SVD, PCA, FA and ICA) suffer from limitation that total number of targets are known a-priori.
Lo que se pretende, como sostiene Comenio, es 'ensenar todo a todos'creando un artificio universal que funcione de forma a-priori y sea inmutable a la naturaleza de las cosas.
De todos los metodos con los que contamos en mineria de datos educativos, empleamos el Modelo K-Medias para la obtencion de conglomerados o grupos de actividad deficiente o anormal (outliers), el modelo basado en grafico de malla para medir el grado de correlaciones entre variables que reflejan la actividad de la plataforma virtual y la elaboracion del modelo A-priori para la obtencion de una regla predictiva con los datos del proceso de uso de la herramienta de aprendizaje online.
In implementing the model, the researchers define a-priori per-protocol high and low enrichment criteria to be applied at the end of treatment and before the statistical analysis.
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