tjohnson Posted July 2, 2007 Share Posted July 2, 2007 An idea;In light of more modern, general semantic, considerations, the 'law of thought' commonly expressed as A=A should be replaced with one such as this S(A)=S(A), in natural language. In mathematics, a=a is fine, but in non-mathematics we do not deal with objects directly, we only know them by their structure, hence the law should be modified to s(a)=s(a). So when one hears the saying 'you never step into the same river twice' this may be true but the important structural characteristics of that river can be the same for all practical purposes. Link to comment Share on other sites More sharing options...
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