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Aristotle - The Organon - index for ANALYTICA POSTERIORA Book 2 Part 15

Identical and subordinate connexions

  
Paragraph 1 Some connexions that require proof are identical in that they possess an identical 'middle' e.g. a whole group might be proved through 'reciprocal replacement' - and of these one class are identical in genus, namely all those whose difference consists in their concerning different subjects or in their mode of manifestation.
Paragraph 2 Other connexions that require proof only differ in that the 'middle' of the one is subordinate to the 'middle' of the other.


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