empiricismA philosophical idea that suggests all knowledge is based on perceived experience.
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The theory that all knowledge is derived from sense-experience."Empiricism criticizes theories that knowledge comes from reason alone."
propositionA statement that expresses a concept which can be true or false. Important in the book for the idea of logical propositions.
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A statement or assertion that expresses a judgement or opinion."A proposition is logically true if it is true in all possible circumstances."
logicThe branch of philosophy that includes the principles of reasoning and argumentation.
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Reasoning conducted or assessed according to strict principles of validity."Aristotle developed rules of logic that are still taught today."
"Our conclusions were based on logic and fact."
"Our conclusions were based on logic and fact."
Use (reason) to form a conclusion or make a decision."We must logic this problem out."
metaphysicsA branch of philosophy dealing with fundamental questions about the nature of reality that go beyond empirical science.
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The branch of philosophy that deals with the first principles of reality, including the relationship between mind and matter."Metaphysics includes many philosophical dilemmas such as 'Does God Exist?' and 'Is there life after death?'"
positivismA philosophical concept asserting that knowledge can only come from empirical observation and logical reasoning.
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A philosophical system recognizing only that which can be scientifically verified or which is capable of logical or mathematical proof, and therefore rejecting metaphysics."Positivism relies on observable, physical data, excluding subjective experience."