A Text-book of Deductive Logic: For the Use of Students

1st and 2nd 5th diagrams abstract terms affirmed or denied animal antecedent attribute connoted axioms belong called canons categorical syllogism circle clusion co-exists collection of attributes combination concept conclusion follows concrete consists contradictory contrapositive converse copula corresponding Deductive Logic definition differentia disjunctive proposition distributed division example existence expressed fallacy false falsity former genus gism given proposition gives rise Hamilton heat hypothetical proposition hypothetical syllogism Ignoratio Elenchi immediate inference implies individual thing Inductive Inductive Reasoning judgment latter logicians major premiss major term material bodies meaning men are mortal middle term Mill's minor term mortal negative not-A not-B not-P object of thought obverse particular perfect mood petitio principii phenomenon principles probability proved rational reasoning regarded relation represented second figure sensation sense signified Similarly singular sition species subalternation subject and predicate substance syllogistic rules third triangle true truth Ueberweg universal valid moods violated by inferring words