The Raven paradox, also known as Hempel's paradox or Hempel's ravens is a paradox proposed by the logician Carl Gustav Hempel in the 1940s to illustrate a problem where inductive logic violates intuition.

Hempel describes the paradox in terms of the hypothesis:

The question which then arises is whether the paradox is to be understood in the context of absolutely no background information ( as Hempel suggests ), or in the context of the background information which we actually possess regarding ravens and black objects, or with regard to all possible configurations of background information.

* Raven paradox, a paradox proposed by the German logician Carl Gustav Hempel

* Hempel's paradox ( or Hempel's ravens ), synonyms for the Raven paradox named after Carl Gustav Hempel

Hempel himself accepted the paradoxical conclusion, arguing that the reason the result appears paradoxical is because we possess prior information without which the observation of a non-black non-raven would indeed provide evidence that all ravens are black.

Hempel, on the other hand, insists that it is our background knowledge itself which is the red herring, and that we should consider induction with respect to a condition of perfect ignorance.

Hempel Avenue, the " main street " of Gotha, is named in his honor.

Additionally, as pointed out by Carl Hempel ( 1905 – 1997 ), this simple view of the scientific method is incomplete ; a conjecture can also incorporate probabilities, e. g., the drug is effective about 70 % of the time.

Hemphill is a family name originating from Scotland and is synonymous with similar names such as Hempel and Hemmel.

Along with Rudolf Carnap, Hans Reichenbach, and Carl Hempel, he is sometimes seen as one of the major figures of the logical positivist movement.

Marc Hempel ( born May 25, 1957 ) is an American cartoonist / comics artist best known for his work on The Sandman with Neil Gaiman.

Breck Eisner is currently set to direct the upcoming Hollywood film adaptation of Blood of the Innocent, a comic book series Hempel co-created with Rickey Shanklin and Wheatley.

To Hempel, metaphysics were anathema, involving claims to know things which were not knowable, that is, advancing hypotheses incapable of tending to be confirmed or disconfirmed by evidence.

This article is in large part a translation from the Article on Carl Gustav Hempel on the German Wikipedia site.

is: Carl Gustav Hempel

* Marc Hempel ( 1975 ) is a cartoonist and author.

Carneiro is a frequent guest soloist with numerous orchestras: BBC National Orchestra of Wales, London Mozart Players, Tampere Philharmonic Orchestra, Orquestra Sinfônica do Estado de São Paulo, Helsingborgs Symfoniorkester, Estonian National Symphony Orchestra, Lithuanian National Symphony Orchestra, Orquesta de la Comunidad de Madrid, Bilbao Symphony Orchestra, Orchestre Régional de Basse-Normandie, Gävle Symfoniorkester and Portuguese Symphony Orchestra, to name but a few, working with conductors such as Petri Sakari, John Neschling, Ronald Zollman, Kaspar de Roo, Jurjen Hempel, Olari Elts, Andrew Parrott, Juanjo Mena, António Saiote, José Ramón Encinar, John Storgårds, Hamish McKeich, Max Rabinovitsj, Sarah Ioannides and Joseph Swensen, amongst others.

In the Irish Times Correspondence of 10 March 2011, the late Charles Acton is quoted, ' Dr Hempel was I am convinced an old fashioned, career civil service diplomat, caught in the terrible dilemma of his times.

In a ' Documents on Irish Foreign Policy 1941-1945 ' a letter from de Valera is quoted defending his contentious visit to Hempel following the death of Hitler.

Generally termed a minimalist writer, along with Raymond Carver and Mary Robison, Hempel is one of a handful of writers who has built a reputation based solely on short fiction.

Hempel is a recipient of the Hobson Award and a Guggenheim Fellowship.

For the present our envoy to be Dr. Eduard Hempel of the German Legation must ascertain whether De Valera desires support and whether he wishes to have his military equipment supplemented by captured British war material ( guns and ammunition ), which could be sent to him in independent ships.

Born in Berlin, Hempel attended the University of Göttingen and the University of Heidelberg, then returned to Berlin, where he was taught by influential physicists Hans Reichenbach and Max Planck, and logistics with mathematician John von Neumann.

Hempel was intrigued by the logical positivism ideas discussed by the Vienna Circle, and he developed a similar network, the Berlin Circle.

One early and influential theory of scientific explanation was put forward by Carl G. Hempel and Paul Oppenheim in 1948.

Salmon attempted to provide an alternative account for some of the problems with Hempel and Oppenheim's model by developing his statistical relevance model.

The town of Gotha was founded in 1879 by German immigrant H. A. Hempel.

The first text book on the rules of Skat was published in 1848 by a secondary school Professor called J. F. L. Hempel.

Achinstein provides a concise presentation by prominent philosophers on evidence, including Carl Hempel ( Confirmation ), Nelson Goodman ( of grue fame ), R. B. Braithwaite, Norwood Russell Hanson, Wesley C. Salmon, Clark Glymour and Rudolf Carnap

Tetrazzini had a bitter feud with Nellie Melba at Covent Garden but was generally well liked by other colleagues, including Enrico Caruso and Frieda Hempel.

Hempel would try to negate the fear generated within the Irish political establishment by the discovery of Plan Kathleen.

* Gregory, a character created by American cartoonist Marc Hempel

* Herman I Vermin a character created by American cartoonist Marc Hempel

The headquarter was founded by Gotthilf Hempel.

According to the commentary provided by Letts for the DVD release of Terror of the Autons, Rula Lenska and Anouska Hempel also auditioned for the role.

* " Problems and Changes in the Empiricist Criterion of Meaning " by Carl G. Hempel

* Carl G. Hempel obituary by the Princeton University Office of Communications

It was created in the late 1920s by Hans Reichenbach, Kurt Grelling and Walter Dubislav and composed of philosophers and scientists such as Carl Gustav Hempel, David Hilbert and Richard von Mises.

Drury's laudatory characterisation of Hempel was however challenged by several other Irish Times readers, who pointed to evidence of the German minister's pro-Hitler, pro-Nazi and anti-Semitic outlook.

Hempel was described as being distraught at the news, wringing his hands in anguish, although after his death his wife, Eva, accounted for the incident by saying that he was suffering from eczema.