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  2. Axiom - Wikipedia

    en.wikipedia.org/wiki/Axiom

    The precise definition varies across fields of study. In classic philosophy, an axiom is a statement that is so evident or well-established, that it is accepted without controversy or question. [3] In modern logic, an axiom is a premise or starting point for reasoning. [4] In mathematics, an axiom may be a "logical axiom" or a "non-logical axiom".

  3. Axiological ethics - Wikipedia

    en.wikipedia.org/wiki/Axiological_ethics

    To understand axiological ethics, an understanding of axiology and ethics is necessary.Axiology is the philosophical study of goodness (value) and is concerned with two questions.

  4. List of axioms - Wikipedia

    en.wikipedia.org/wiki/List_of_axioms

    Together with the axiom of choice (see below), these are the de facto standard axioms for contemporary mathematics or set theory. They can be easily adapted to analogous theories, such as mereology. Axiom of extensionality; Axiom of empty set; Axiom of pairing; Axiom of union; Axiom of infinity; Axiom schema of replacement; Axiom of power set ...

  5. Value theory - Wikipedia

    en.wikipedia.org/wiki/Value_theory

    Value theory is the interdisciplinary study of values.Also called axiology, it examines the nature, sources, and types of values.Primarily a branch of philosophy, it is an interdisciplinary field closely associated with social sciences like economics, sociology, anthropology, and psychology.

  6. Axiomatic system - Wikipedia

    en.wikipedia.org/wiki/Axiomatic_system

    An axiomatic system is said to be consistent if it lacks contradiction.That is, it is impossible to derive both a statement and its negation from the system's axioms. Consistency is a key requirement for most axiomatic systems, as the presence of contradiction would allow any statement to be proven (principle of explo

  7. Foundations of geometry - Wikipedia

    en.wikipedia.org/wiki/Foundations_of_geometry

    Based on ancient Greek methods, an axiomatic system is a formal description of a way to establish the mathematical truth that flows from a fixed set of assumptions. Although applicable to any area of mathematics, geometry is the branch of elementary mathematics in which this method has most extensively been successfully applied.

  8. Theory of art - Wikipedia

    en.wikipedia.org/wiki/Theory_of_art

    A theory of art is intended to contrast with a definition of art. Traditionally, definitions are composed of necessary and sufficient conditions, and a single counterexample overthrows such a definition. Theorizing about art, on the other hand, is analogous to a theory of a natural phenomenon like gravity.

  9. Parallel postulate - Wikipedia

    en.wikipedia.org/wiki/Parallel_postulate

    Euclid gave the definition of parallel lines in Book I, Definition 23 [2] just before the five postulates. [3] Euclidean geometry is the study of geometry that satisfies all of Euclid's axioms, including the parallel postulate. The postulate was long considered to be obvious or inevitable, but proofs were elusive.