| http://www.w3.org/ns/prov#value | - But after the division of labour had made everyone into a merchant and society into a commercial society, no one wanted to give up his products except in return for their equivalents; it thus became necessary, in order to determine this equivalent, to know the value of the thing received.' (Ganilh, 12, b.) [30] This means in other words that exchange did not stand still with the formal positing of
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