An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 44 Search : logic
topological
  توپوشناختی، توپوشناسیک   
topošenâxti, topošenâsik

Fr.: topologique   

Of or relating to → topology.

topology; → -ic; → -al

topological defect
  آک ِ توپوشناختی، ~ توپوشناسیک   
âk-e topošenâxti, ~ topošenâsik

Fr.: défaut topologique   

In → cosmological models, a stable configuration of → matter formed when the → early Universe underwent → phase transitions during which fundamental symmetries were broken. There are a number of possible types of defects, such as domain walls, → cosmic strings, → magnetic monopoles, and → texture s. Same as → cosmic defect.

topological; → defect.

topological space
  فضای ِ توپوشناختی   
fazâ-ye topošenâxti

Fr.: espace topologique   

A set X together with a collection of open subsets T that satisfies the three following conditions: 1) The empty set Ø and X are in T. 2) The intersection of a finite number of sets in T is also in T. 3) The union of an arbitrary number of sets in T is also in T.

topological; → space.

transcendental logic
  گوییک ِ ترافرازنده   
guyik-e tarâfarâzandé

Fr.: logique transcendantale   

In Kantian epistemology, a pure logic which contains solely the rules of the pure thought of an object, excluding any mode of knowledge with empirical content. Whereas general logic is not concerned with the origin of our cognitions, transcendental logic would contain rules for the use of → a priori cognitions.

transcendental; → logic.

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