The Principles of Logic: For High Schools and Colleges |
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absurd affirmative animal argument attributes Cæsar categorical categorical proposition cause circle of latitude Classification clusion coextensive comprehension conceive conclusion contained contrary Definition denotes difference Dilemmatic Disjunctive Syllogisms distribute the predicate division earth Enthymeme Euathlus excluded expression extensive quantity extreme fallacy false Figure finite Formal Fallacies Hamilton harmony of thought Hence hypothetical Hypothetical Syllogisms illicit process implies the falsity implies the truth individual Induction and Analogy infer intersects intuitions invalid involves judgment knowledge Law of Contradictories laws of thought logical major premise major term Mathematical induction middle term mind minor term moon moral motion negative non-P non-S objects observed petitio principii phenomena polygon polytomy Prem principle prove quadrupeds Real induction reasoning reductio ad absurdum relation right angles Sophisms space is infinite species subject and predicate subordinate theological conceptions thing tion tive tower triangles true universal valid moods warrant whole