Combining Texts

You have chosen 'On the Nature of the Gods ('De natura deorum')' by M. Tullius Cicero, 'Why Propositions cannot be concrete' by Alvin Plantinga and 'Science and Method' by Henri Poincar

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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