ConceptFundamental unit of cognitionA concept is a fundamental unit of cognition that classifies entities and encodes shared features. Concepts make it possible to form and combine ideas, draw inferences, and refer to external objects. They act as the meanings of words and play a central role in many cognitive processes, including perception, memory, and reasoning. Researchers distinguish different types of concepts based on their internal structure, mode of acquisition, and domain.
KnowledgeAwareness of facts, or competencyThe owl of Athena, a symbol of knowledge in the Western worldKnowledge is an awareness of facts (descriptive knowledge), a familiarity with individuals and situations (knowledge by acquaintance), or a practical skill (procedural knowledge). Descriptive knowledge, also called propositional knowledge, is often characterized as true belief that is distinct from opinion or guesswork by virtue of justification.
TheoryA theory is, in general, a set of propositions or ideas about something, developed in a variety of ways through any sort of reasoning. This includes informal folk psychological theories of why someone behaves the way they do, scientific theories that attempt to explain some phenomenon, philosophical theories (for example of politics or the nature of reality), and a range of other uses.
CognitionCognition encompasses mental processes that deal with knowledge. It includes psychological activities that acquire, store, retrieve, transform, or apply information. Cognitive processes are a fundamental part of mental life, helping individuals understand and interact with the world. Cognitive processes are typically categorized by their function.
Ludwig WittgensteinAustrian philosopher and logician (1889–1951)Ludwig Josef Johann Wittgenstein ( ; Austrian German:; 26 April 1889 – 29 April 1951) was an Austro-British philosopher who worked in logic, philosophy of mathematics, philosophy of mind, and philosophy of language. Wittgenstein was born in Vienna into one of Europe's richest families.
LearningProcess of acquiring new knowledgeAmerican students learning how to make and roll sushiLearning is the process of acquiring new understanding, knowledge, behavior, skills, values, attitudes, and preferences. The ability to learn is possessed by humans, other animals, and some machines. There is also evidence for some kind of learning in certain plants.DispositionA disposition is a quality of character, a habit, a preparation, a state of readiness, or a tendency to act in a specified way. The terms dispositional belief and occurrent belief refer, in the former case, to a belief that is held in the mind but not currently being considered, and in the latter case, to a belief that is currently being considered by the mind.
ModelA model is an informative representation of an object, person, or system. The term originally denoted the plans of a building in 16th-century English, and derived via French and Italian ultimately from Latin modulus, 'a measure'. Models can be divided into physical models (e.g. a ship model) and abstract models (e.g. a set of mathematical equations describing the workings of the atmosphere for the purpose of weather forecasting).
Relation (philosophy)Relations are ways in which several entities stand to each other. They usually connect distinct entities but some associate an entity with itself. The adicity of a relation is the number of entities it connects. The direction of a relation is the order in which the elements are related to each other. The converse of a relation carries the same information and has the opposite direction, like the contrast between "two is less than five" and "five is greater than two".
Gregory ChaitinGregory John Chaitin ( CHY-tin; born 25 June 1947) is an Argentine-American mathematician and computer scientist. His work was foundational to the development of algorithmic information theory, and has been influential on metamathematics. He independently discovered what is today known as algorithmic (Kolmogorov or Solomonoff–Kolmogorov–Chaitin) complexity simultaneously with Andrei Kolmogorov and Ray Solomonoff.
Definitions of knowledgeDefinitions of knowledge aim to identify the essential features of knowledge. Closely related terms are conception of knowledge, theory of knowledge, and analysis of knowledge. Some general features of knowledge are widely accepted among philosophers, for example, that it involves cognitive success and epistemic contact with reality.
InferenceInferences are steps in logical reasoning, moving from premises to logical consequences. Inference is traditionally divided into deduction and induction, a distinction that dates at least to Aristotle (300s BC). A third type of inference, abduction, has been proposed, notably by Charles Sanders Peirce. Deduction is inference derivinglogical conclusions from premises known or assumed to be true, with the laws of valid inference being studied in logic.
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