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: 6 Search : truth
necessary truth
  راستینی ِ بایسته   
râstini-ye bâyesté

Fr.: vérité nécessaire   

Logic: A → proposition if its → denial is self-contradictory. Also called "logical truth" and "non-contingent truth."

necessary; → truth.

partial truth
  راستینی ِ پاری، ~ پارال   
râstini-ye pâri, ~ pârâl

Fr.: vérité partielle   

A → truth value in → fuzzy logic where it can range between "completely true" and "completely false."

partial; → truth.

truth
  راستینی   
râstini (#)

Fr.: vérité   

1) The quality of being true, genuine, actual, or factual.
2) Something that is → true as opposed to → false.
3) Logic: The correct corresponding of a → proposition with a → fact. See also → truth value, → partial truth.

M.E. treuthe; O.E. trêowth "faith, faithfulness, fidelity; quality of being true," from triewe, treowe "faithful," → tue, with suffix *-itho-th.

Noun from râstin, → true, + noun suffix -i.

truth function
  کریای ِ راستینی   
karyâ-ye râstini

Fr.: fonction de vérité   

A → total function from → truth values to truth values (a sequence of truth values).

truth; → function.

truth table
  جدول ِ راستینی   
jadval-e râstini

Fr.: table de vérité   

A table with columns and rows that lists the resultant → truth value of the given → sentences for each of the possible combinations of truth values to the simple sentences out of which the given sentences are constructed.

truth; → value.

truth value
  ارزش ِ راستینی   
arzeš-e râstini

Fr.: valeur de vérité   

The quality of a logical → proposition (or a formal → symbol) which describes the relation of a proposition to → truth. The traditional → formal logic admits only two contradictory values, → true or → false. In → symbolic logic, more specifically in → polyvalent logics, other truth values are used (such as possible, impossible, undetermined, probable, random, etc.).

truth; → value.