Definition of A posteriori

1. Adjective. Involving reasoning from facts or particulars to general principles or from effects to causes. "A posteriori demonstration"

2. Adverb. Derived from observed facts.
Antonyms: A Priori

3. Adjective. Requiring evidence for validation or support.
Similar to: Empiric, Empirical

Definition of A posteriori

1. Adjective. (logic) Involving deduction of theories from facts. ¹

2. Adjective. (linguistics of a constructed language) Developed on a basis of languages which already exist.Donald J. Harlow, [ How to Build a Language] ¹

3. Adverb. (logic) In a manner that deduces theories from facts. ¹

¹ Source:

Medical Definition of A posteriori

1. 1. Characterising that kind of reasoning which derives propositions from the observation of facts, or by generalisations from facts arrives at principles and definitions, or infers causes from effects. This is the reverse of a priori reasoning. 2. Applied to knowledge which is based upon or derived from facts through induction or experiment; inductive or empirical. Origin: L. A (ab) + posterior latter. Source: Websters Dictionary (01 Mar 1998)

A Posteriori Pictures

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Lexicographical Neighbors of A Posteriori

a mensa et thoro
a million
a million times
a miss is as good as a mile
a new broom sweeps clean
a nod is as good as a wink
a non domino
a notch above
a number of
a penny saved is a penny earned
a penny saved is a penny gained
a people
a piacere
a picture is worth a thousand words
a picture paints a thousand words
a posteriori (current term)
a priori
a quick drop and a sudden stop
a riddle wrapped up in an enigma
a rising tide lifts all boats
a rolling stone gathers no moss
a scholar and a gentleman
a small matter
a spoonful of sugar helps the medicine go down
a sprat to catch a mackerel
a stitch in time saves nine
a stopped clock is right twice a day
a super lot
a thing or two

Literary usage of A posteriori

Below you will find example usage of this term as found in modern and/or classical literature:

1. Transactions by Cambridge Philosophical Society (1885)
"... according as the quaesitum is the most probable or the most advantageous value. It is remarkable that Laplace in his general account of the a posteriori ..."

2. The Concept of Knowledge by Panayot Butchvarov (1970)
"ently of experience and an a posteriori proposition is one that cannot. An a priori proposition would be one of which we can have a priori knowledge, ..."

3. Elements of Logic: Together with an Introductory View of Philosophy in by Henry Philip Tappan (1856)
"THE DIFFERENT KINDS OF A PRIORI AND a posteriori PROOF. ALL the other forms of Evidence or Proof may be reduced to the d priori ..."

4. The Mathematical theory of probabilities and its application to frequency by Arne Fisher (1922)
"PROBABILITY a posteriori, 39. Bayes's Rule. a posteriori Probabilities.—The problems hitherto considered have all had certain points in common. ..."

5. Critique of Pure Reason by Immanuel Kant (1887)
"But they are incompetent to present any of the conceptions which appear in them in an a priori intuition ; these can be given only a posteriori, ..."

6. Mental Philosophy: Embracing the Three Departments of the Intellect by Thomas Cogswell Upham (1869)
"Another method of reasoning is termed a posteriori. a posteriori reasoning is that by which either a cause is proved from an effect; or, in more general ..."

7. The Science of Thought by Friedrich Max Müller (1887)
"And while this small triumph, that all a priori truth is first realised a posteriori, will ' knowledge readily be allowed to Mill and his fol- not always ..."

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