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a priori

   Also found in: Legal, Idioms, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
a pri·o·ri   pr-ôr, -r, pr-ôr, -r)
adj.
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 prir : Latin , from + Latin prir, ablative of prior, former.]

a pri·ori adv.
a pri·ori·ty (-ôr-t, -r-) n.

a priori [eɪ praɪˈɔːraɪ ɑː prɪˈɔːrɪ]
adj
1. (Philosophy / Logic) Logic relating to or involving deductive reasoning from a general principle to the expected facts or effects
2. (Philosophy / 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. (Mathematics & Measurements / Statistics) Statistics See prior probability, mathematical probability Compare a posteriori, analytic [4]
[from Latin, literally: from the previous (that is, from cause to effect)]
apriority  [ˌeɪpraɪˈɒrɪtɪ] n
ThesaurusLegend:  Synonyms Related Words Antonyms
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 principles
a 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 experiment
theoretic, theoretical - concerned primarily with theories or hypotheses rather than practical considerations; "theoretical science"
Adv.1.a priori - derived by logic, without observed facts
a posteriori - derived from observed facts

a priori
adjective deduced, deductive, inferential There is no a priori hypothesis to work with.
adverb theoretically, in theory One assumes, a priori, that a parent would be better at dealing with problems.
Translations
a priori [eɪpraɪˈɔːraɪ]
A. ADVa priori
B. ADJapriorístico
a priori
adva priori
adjapriorisch
a priori [ɑːprɪˈɔːrɪ] adj (frm) (argument) → a priori; (judgment, statement) → aprioristico/a
an a priori decision → una decisione presa a priori


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? Mentioned in ? References in classic literature
 
No one would have guessed a priori that this movement of a middle-aged man's body would cause fish to come out of the sea into his larder, but experience shows that it does, and the middle-aged man therefore continues to go to the City, just as the cat in the cage continues to lift the latch when it has once found it.
We should not A PRIORI have expected it, but it is undoubtedly a fact.
We may trace them in language, in philosophy, in mythology, in poetry, but we cannot argue a priori about them.
 
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