A Manual of Logic: Deductive and InductiveM. Ogle and son, 1850 - 237 sider |
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Side x
... inference necessitated by the laws of thought . Logic has nothing to do with things as they exist really and in themselves , but only the forms of thought under which the mind conceives them . It is conversant solely about second , not ...
... inference necessitated by the laws of thought . Logic has nothing to do with things as they exist really and in themselves , but only the forms of thought under which the mind conceives them . It is conversant solely about second , not ...
Side 8
... inference is deduced.b The object of logic is to obviate these defects , by pre- scribing rules for our guidance alike in investigation and inference . a Mendosa collectio is remedied by the rules of syllogism and induction ; and here ...
... inference is deduced.b The object of logic is to obviate these defects , by pre- scribing rules for our guidance alike in investigation and inference . a Mendosa collectio is remedied by the rules of syllogism and induction ; and here ...
Side 101
... inference . They do not relate to the connection of the subject and the predicate , of the antecedent and consequent , as terms in thought , but as realities in existence ; they are metaphysical , not logical conditions . The ...
... inference . They do not relate to the connection of the subject and the predicate , of the antecedent and consequent , as terms in thought , but as realities in existence ; they are metaphysical , not logical conditions . The ...
Side 113
... inference no term can be changed from a particular to an universal ; in other words , that an argument a particulari ad universale is invalid ; for if any term is particular , a part of it only is said to agree or disagree with the ...
... inference no term can be changed from a particular to an universal ; in other words , that an argument a particulari ad universale is invalid ; for if any term is particular , a part of it only is said to agree or disagree with the ...
Side 120
... inferences or deductions which follow from the assumed truth or falsity of a premiss . It may be remarked , that , in reference to the doctrine of opposi- tion , the formal view may be easily maintained by expressing the canons or ...
... inferences or deductions which follow from the assumed truth or falsity of a premiss . It may be remarked , that , in reference to the doctrine of opposi- tion , the formal view may be easily maintained by expressing the canons or ...
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abstraction accidental accidents agree animal antecedent argument Aristotle asserts attribute cate categorical proposition Celarent cloth clusion common term conception conclusion consequent considered constitutes contradictory contraposition converse converted simply convertend copula Darii definition denotes differentia disjunctive disjunctive proposition disjunctive syllogism distributed divided division Dr Brown's Edition enthymeme essence excluded existence expressed extension fallacy false Ferio flowers fourth figure generalisation genus gisms Hence implied inductive inference infima judgment kinds Laws of Thought legitimate logical logicians major premiss major proposition major term matter means metaphysical middle term mind minor term modality moods nature negative proposition notion noun nouns substantive objects particular affirmative particular negative planet proprium reasoning reduced reducend relation rules second figure sense signifies simply convertible singular sion sorites species subaltern subject and predicate substance things third figure tion tive triangle true truth universal affirmative universal negatives universal proposition universal term virtue vols whole words
Populære avsnitt
Side 139 - Again ; the mathematical postulate, that " things which are equal to the same are equal to one another," is similar to the form of the syllogism in logic, which unites things agreeing in the middle term.
Side 46 - There are not some names which are exclusively genera, and others which are exclusively species or differentiae; but the same name is referred to one or another Predicable, according to the subject of which it is predicated on the particular occasion. Animal, for instance, is a genus with respect to Man or John ; a species with respect to substance or Being. The words genus, species, &c., are therefore relative terms ; they are...
Side 46 - It is to be remarked of these distinctions," says the author we are quoting, " that they express not what the predicate is in its own meaning, but what relation it bears to the subject of which it happens on the particular occasion to be predicated.
Side 201 - But Euathlus retorted this dilemma, thus : ' Either I shall gain the cause, or lose it : if I gain the cause, then nothing will be due to you, according to the sentence of the judge ; but if I lose the cause, nothing will be due to you...