## Textbook of logic |

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abstract actual already alternative proposition antecedent applied argument assert attributes called categorical propositions categorical syllogisms causal character classification complex conclusion Concomitant Variations connection consequent contradictory contrapositive converse correlation deductive deductive reasoning described dilemma disjunctive syllogism distinguished distributed distribution of terms equiangular equilateral Evolutionary Method example Exercises on Chapter explained expressed facts fallacy false Figure formal given proposition hypothesis hypothetical propositions identity immediate inference inductive methods instance inverse investigation judgments kind knowledge known Law of Contradiction Logic major premise major term means mediate inference merely Method of Difference middle term namely objects observed obtained obverse order in nature particular phenomena planets possible predicate premise is affirmative probability problem quantity question reasoning reference regarded relevant result scientific methods sense Similarly singular sometimes sub-classes symbolic theory things tion tive transitive relations triangles true type of proposition uniformities universal universe of discourse usually valid moods