Discussion: From individuals to ecosyste
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Catherine A. Toft; Marc Mangel
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Article
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1991
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Springer
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English
⚖ 847 KB
It is not necessary in any empirical sense to keep an elaborate logicomathematical system always apparent, any more than it is is necessary to 'keep a vacuum cleaner conspicuously in the middle of a room at all times. When a lot of irrelevant litter has accumulated the machine must be brought out, u