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Ideas for 'fragments/reports', 'Logic in Mathematics' and 'The Secret Connexion'

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2 ideas

18. Thought / B. Mechanics of Thought / 5. Mental Files
We need definitions to cram retrievable sense into a signed receptacle [Frege]
     Full Idea: If we need such signs, we also need definitions so that we can cram this sense into the receptacle and also take it out again.
     From: Gottlob Frege (Logic in Mathematics [1914], p.209)
     A reaction: Has anyone noticed that Frege is the originator of the idea of the mental file? Has anyone noticed the role that definition plays in his account?
We use signs to mark receptacles for complex senses [Frege]
     Full Idea: We often need to use a sign with which we associate a very complex sense. Such a sign seems a receptacle for the sense, so that we can carry it with us, while being always aware that we can open this receptacle should we need what it contains.
     From: Gottlob Frege (Logic in Mathematics [1914], p.209)
     A reaction: This exactly the concept of a mental file, which I enthusiastically endorse. Frege even talks of 'opening the receptacle'. For Frege a definition (which he has been discussing) is the assigment of a label (the 'definiendum') to the file (the 'definiens').