Institutes of Logic

absolutely abstract actual affirmative animal antecedent applied Aristotle assertion attribute biped Boethius called cause common Comprehension conceived concept conclusion consciousness consequent contains contradiction contradictory contrary conversion copula definite deny determined disjunctive distinction doctrine Enthymeme essential exclusion existence experience expression Extension fact fallacy false Figure formal formal fallacies generalisation genus gism given ground Hamilton Hegel hypothetical immediate inference individual object Induction intuition judgment knowledge law of Identity law of Non-Contradiction laws of thought logical law logicians major premiss mark matter means middle term Mill moods nature necessarily necessary negation negative Non-Contradiction notion Occam opposition organised Organon particular phænomenon plant positive possible Prantl predicate principle properly proposition quantity reality reasoning recognised reference regarded relation rule sense simply singular Socrates speak species sphere subject and predicate sublate supposed Syllogism thing thought tion triangle true truth Ueberweg universal valid whole wholly words