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You have chosen 'Letters to Paul Pellison-Fontinier' by Gottfried Leibniz, 'Psychology from an empirical standpoint' by Franz Brentano and 'When Does a Life Begin?' by Michael Lockwood

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All the ideas for Theory of Logic, or select a subheading:

	A.	Overview of Logic
	B.	Logical Consequence
	C.	Ontology of Logic
	D.	Assumptions for Logic
	E.	Structures of Logic
	F.	Referring in Logic
	G.	Quantification
	H.	Proof Systems
	I.	Semantics of Logic
	J.	Model Theory in Logic
	K.	Features of Logics
	L.	Paradox