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'Parmenides', 'The Upanishads' and 'The Evolution of Logic'
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18. Thought / D. Concepts / 3. Ontology of Concepts / c. Fregean concepts
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The Fregean concept of GREEN is a function assigning true to green things, and false to the rest [Hart,WD]
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18. Thought / D. Concepts / 5. Concepts and Language / a. Concepts and language
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Without speech we cannot know right/wrong, true/false, good/bad, or pleasant/unpleasant [Anon (Upan)]
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