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SKCTI0N THE NATURE OF LOGIC PAOJ
Relation of Logic to other Knowledge
The Principle of Identity
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affirmative alternatives analogy analysis argon argument Aristotle arithmetical mean assertion assumed assumption attributes categorical categorical propositions categorical syllogism causal connection cause chemical classification colour conclusion connotation consequent contradictory contrapositive corpuscles definite denotation determined disjunctive proposition elements empirical generalisation enquiry enthymeme equal error essential established event evidence examination example existence experiment explanation expressed facts fallacy false formal genus give given Hence hypothesis hypothetical hypothetical syllogisms Ibid implies important induction inference instance investigation J. M. Keynes kind knowledge known light logical logicians major premise mathematics matter means method method of agreement minor Modus ponendo tollens Modus Tollens nature negative nitrogen objects observation Obverted occur particular phenomena phenomenon possible predicate principle probability properties proved reason reference regarded relation result rule scientific sense simple species statement suggested syllogism syllogistic term theory things thought tion true truth universal valid words worms