a posteriori

Definitions

  • WordNet 3.6
    • adj a posteriori involving reasoning from facts or particulars to general principles or from effects to causes "a posteriori demonstration"
    • adj a posteriori requiring evidence for validation or support
    • adv a posteriori derived from observed facts
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Webster's Revised Unabridged Dictionary
    • A posteriori (Philos) Applied to knowledge which is based upon or derived from facts through induction or experiment; inductive or empirical.
    • A posteriori (Logic) Characterizing that kind of reasoning which derives propositions from the observation of facts, or by generalizations from facts arrives at principles and definitions, or infers causes from effects. This is the reverse of a priori reasoning.
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Chambers's Twentieth Century Dictionary
    • adj A posteriori ā pos-tē-ri-ō′ri, applied to reasoning from experience, from effect to cause, as opposed to a priori reasoning, from cause to effect: empirical: gained from experience. Synthetic and analytic, deductive and inductive, correspond in a general way to a priori and a posteriori.
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Etymology

Webster's Revised Unabridged Dictionary
L. a, ab,) + posterior, latter
Chambers's Twentieth Century Dictionary
L. a = ab, from, posteriori, abl. of posterior, comp. of posterus, after.

Usage

In literature:

In all science a priori and a posteriori truths mingle in various proportions.
"The Republic" by Plato
There is no other way than through intuitions or conceptions, as such; and these are given either a priori or a posteriori.
"The Critique of Pure Reason" by Immanuel Kant
As to the reasons a posteriori they are not to be drawn wholly from the Kowrarega tongue itself.
"Voyage Of H.M.S. Rattlesnake, Vol. 2 (of 2)" by John MacGillivray
His power is eternal a priori and a posteriori.
"The Faith of Islam" by Edward Sell
Reasoning a posteriori, one would think it must have been very unpleasant to Vulcan.
"The Comic Latin Grammar" by Percival Leigh
To Kant knowledge was only possible as the synthesis of the material or a posteriori with the formal or a priori.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5" by Various
They are like cause and effect, or an a priori and an a posteriori argument.
"St. Peter, His Name and His Office" by Thomas W. Allies
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In news:

I want to go on record as endorsing Silver's model before we know whether it will actually work as well this time as it did in 2008, because I don't want to appear that I went on the record only a posteriori.
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In science:

Hence, the maximum of the concave likelihood functional still remains unique under this looser constraint, and one can check a posteriori that the condition TrK [S ] = 11H is fulfilled.
Characterising a universal cloning machine by maximum-likelihood estimation
Use of the K-S test avoids a posteriori selection problems as discussed by Press & Schechter (1974).
The Chandra Deep Survey of the Hubble Deep Field North Area. IV. An Ultradeep Image of the HDF-N
It results an expression for the density operator which, a posteriori, can be interpreted as if the evolution time is not a fixed parameter, but a stochastic variable whose distribution is a Γ-distribution.
Quantum Zeno-like effect due to competing decoherence mechanisms
The extensiveness of the free energy is a posteriori justification of the above heuristic procedure.
Localization of a random heteropolymer onto a surface
Suitable terms have then to be added a posteriori to the action functional to obtain the predefined boundary control mode.
The First Law of Isolated Horizons via Noether Theorem
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