A form of logical reasoning that begins with a generalization (premise), relates a specific fact to that generalization, and forms a conclusion that fits both. COMPARE induction.
An inference from a set of propositions, or premises, to another proposition, or conclusion, that must be true if the premises are true.
The process of reasoning in which we conclude from the general law or principle to a particular instance falling under the general law or principle.
The process of gaining knowledge independently of experience, through pure logical reasoning. This knowledge is deductive knowledge, or a priori knowledge. Of the spheres of human reasoning, only mathematics can truly be said to be deductive.
the conclusion or generalisation you come to after looking carefully at all the facts
The method of reasoning by which conclusions must follow from ceratin assumptions, principles, or concepts. If there are five people in a room, for example, one can deduce that there are also four; or if it is assumed that everything in nature exists for a purpose, then one can conclude that humans, too, exist for a purpose. Deductive reasoning proceeds from the general to the particular.
method out of rational logic to draw conclusions in rational logic. A deductive argument is a rational argument whose rational conclusions follow in rational logic necessarily from rational basics.
something that is inferred (deduced or entailed or implied); "his resignation had political implications"
reasoning from the general to the particular (or from cause to effect)
a deductively valid inference
an argument or theory starting with axioms or premises and leading to a conclusion
an argument supporting a remote or inferred assertion
an argument that produces valid conclusions according to the validity of argumenting
an argument whose Interpretant represents that it belongs to a general class of possible arguments precisely analogous which are such that in the long run of experience the greater part of those whose premisses are true will have true conclusions
a way of showing a deductive argument to be valid
One of the three formal logical processes that are postulated to affect grammar testing and use, it is most often associated with perscriptive or formal grammar anaylsis. Using a deduction, a speaker takes a rule (English plurals are formed by adding an ‘s' suffix to a singular noun), and a case (‘dog' is a singular English noun), then from these deduces the result (‘dogs' is the plural of ‘dog')
The type of argument or inference whereby the conclusion is claimed necessarily to follow from the premise.
Generally, the process of inferring necessary conclusions about particulars by reasoning general or universal premises.
arguing from a general principle-to a specific case. Opposite of induction which argues from specific cases or data to a general conclusion.
involves reasoning from the general to the particular; a deductive theory beings with a construct (theory), makes specific predictions about the construct, and then empirically tests the predictions.
Deduction is what you do when you know the principles of something, and deduce a particular case. For example, if you know the principles of arithmetic, you can deduce that 10023 + 61 = 10084, even if you have never seen this example before. Induction is the opposite process. See also abduction.
An argument that begins with a clearly stated claim, and then uses selected evidence to support that claim. See also induction.
A method of logical inference. Given a cause, deduction infers all logical effects that might arise as a consequence. See also: Inference, Abduction, Induction.
The process of deriving statements (called propositions) from a set of assumptions (called axioms). If all humans are mortal and Socrates is human, then it may be deduced that Socrates is mortal. Compare induction.
is a form of logical reasoning that begins with a general assertion and then presents specific details and example s in support of that generalization. Induction works in reverse by offering a number of example s and then concluding with a general truth or principle. Definition
Generally, reasoning from universals to particulars, wholes to parts. Deductive thinking is thinking within the confines of represented reality, namely the limits established by concepts. In this respect, the concept is the universal, it is the whole.
A form of logical reasoning by which, from a given set of facts (premises), certain consequences (conclusions) can be inferred. For example, if I know that on every occasion on which it rains the streets get wet, and that it is raining now, then I can deduce that the streets are now wet.
Reasoning from premises to a conclusion such that if the premises are true then the conclusion must also be true.
A system of logic, inference and conclusion drawn from examination of facts. Conclusions drawn from the general down to the specific.
the process of reasoning from premises to conclusions which are logically entailed by those premises. The conclusions of correct deductive inferences cannot possibly be false if the premises are true. See: What is Logic?". see also: induction
The method of proving an argument to be valid by means of logical rules. A deduction applies rules of Group I and Group II to the argument's premises, until it arrives at the conclusion.
To infer knowledge of an instance from its membership in a category or type. The process of using knowledge but not of creating it.
Reasoning based on general truths or certainties from which inferences can be drawn for particular situations. It may take the form of the syllogism IF and IF THEN , or of IF–THEN rules such as those used in expert systems. Compare induction.
Deduction infers information that is a logical consequence of the data.