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The term is used in philosophical theories of reference, and is to be contrasted with referentially transparent context.In rough outline: Opacity: "Mary believes that Cicero is a great orator" gives rise to an opaque context; although Cicero was also called 'Tully', [2] we can't simply substitute 'Tully' for 'Cicero' in this context ("Mary believes that Tully is a great orator") and guarantee ...
In analytic philosophy and computer science, referential transparency and referential opacity are properties of linguistic constructions, [a] and by extension of languages. A linguistic construction is called referentially transparent when for any expression built from it, replacing a subexpression with another one that denotes the same value [b] does not change the value of the expression.
An opaque substance transmits no light, and therefore reflects, scatters, or absorbs all of it. Other categories of visual appearance, related to the perception of regular or diffuse reflection and transmission of light, have been organized under the concept of cesia in an order system with three variables, including opacity, transparency and ...
Opacity or opaque may refer to: Impediments to (especially, visible) light: Opacities, absorption coefficients; Opacity (optics), property or degree of blocking the transmission of light; Metaphors derived from literal optics: In linguistics: Opaque context, a term to describe the linguistic context of co-referential terms
Due to this order of phonological rules, the interaction of the suffix vowel with rounding harmony is opaque. There is still vowel harmony between the suffix vowel and a preceding high vowel as these vowels agree in roundedness, while a vowel with the feature [-high] would usually be exempt from rounding harmony. As a result of counter-bleeding ...
Materials that do not transmit light are called opaque. Many such substances have a chemical composition which includes what are referred to as absorption centers. Many substances are selective in their absorption of white light frequencies. They absorb certain portions of the visible spectrum while reflecting others. The frequencies of the ...
Archaeological context, an event in time which has been preserved in the archaeological record; Opaque context, the linguistic context in which substitution of co-referential expressions does not preserve truth; Trama (mycology) (context or flesh), the mass of non-hymenial tissues that composes the mass of a fungal fruiting body
With opaque white and tempera paint, he set accents, emphasized details and gave individual parts of the picture a special impact. Nolde, who was over 70 at the time, with the Unpainted Paintings , comprising around 1300 works, created a rich later work that is still characterized by an extraordinary freshness and topicality.