"deductive argument" is correct and usable in written English.
You could use it when you are trying to explain a logical set of reasoning that leads to a valid conclusion. For example, "The philosopher provided a convincing deductive argument that all beings possess a moral obligation to help one another in times of need."
Syllogism, in logic, a valid deductive argument having two premises and a conclusion.
The theory of the syllogism (a valid deductive argument having two premises and a conclusion) is, however, developed, and much sophistication has been achieved in logical theory.
A good, or valid, deductive argument is one in which the conclusion follows from the premises one in which true premises would guarantee a true conclusion.
Jolley had assigned a short essay by Lewis Carroll, "What the Tortoise Said to Achilles," an imagined dialogue in which the Tortoise flummoxes Achilles by repeatedly refusing to accept what at first appears to be an easily justified deductive argument.
A deductive argument can be roughly characterized as one in which the claim is made that some proposition (the conclusion) follows with strict necessity from some other proposition or propositions (the premises)—i.e., that it would be inconsistent or self-contradictory to assert the premises but deny the conclusion.
If a deductive argument is to succeed in establishing the truth of its conclusion, two quite distinct conditions must be met: first, the conclusion must really follow from the premises i.e., the deduction of the conclusion from the premises must be logically correct and, second, the premises themselves must be true.
Formal logic, the abstract study of propositions, statements, or assertively used sentences and of deductive arguments.
Reasoning skills are often assessed through problems involving syllogisms, which are deductive arguments consisting of two premises and a conclusion.
The first model explains why people use an inductive, probabilistic reasoning process even when using ostensibly deductive arguments such as Modus Ponens and Modus Tollens.
Besides becoming better at formulating and evaluating deductive arguments, students will gain an understanding of central logical concepts such as validity, implication, consistency, equivalence, soundness, and completeness.
These simple arguments (deductive arguments can be infinitely more complex) illustrate two important features of deductive reasoning: it need not be about real things, and it can be applied to any subject matter whatsoever i.e., it is universal.
