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Dialectic in the Philosophy of Plato

Of the most fundamental concepts of the a philosophical system)) of Plato --in the vast sense of word, including ontology, epistemology, ethics and politics - is Dialectic . Plato borrowed this concept, as a method, from Socrates and developed it during his fifty years of philosophical investigations.At this paper we have a survey on the meanings of Dialectic, in Plato s system, as represented in his Dialogues and in his Seventh Letter.