# What are examples of deductive reasoning?

Examples of deductive reasoning start from a general, factual premise and then progress to specifics that hold true based on the validity of the premise. The best examples use uncontested facts, such as the premise that all birds have wings. Deductive reasoning tells us that because all birds have wings, and a robin is a bird, then the robin has wings.

Deductive reasoning is a scientific method used to prove a hypothesis or deduct a truth based on logic. The process works only if the facts in the initial premise are sound and beyond debate. A major component of deductive reasoning is the assumption that if something is true for one member of a class or group, then the same thing is true for all members of that class. For example, if it is true that all normal dogs have four legs, and it is also true that a poodle is a dog, then a poodle has four legs. Likewise, because whales are warm-blooded, and orcas are whales, then orcas are warm-blooded. Deductive reasoning can also be applied to actions with a cause and effect. If Jennifer buys a pair of running shoes, and the shoes cost \$100, then Jennifer now has \$100 less in her bank account.

Q&A Related to "What are examples of deductive reasoning?"
 all flowers are fragrance. gumamela is a flower. therefore gumamela is fragrance. http://wiki.answers.com/Q/What_is_a_example_of_ded...
 Deductive reasoning is when someone logically figures out why something happens by following the information that they know to come up with the answer. http://www.ask.com/web-answers/Science/Mathematics...
 Here are some examples of deductive reasoning: All oranges are fruits. http://www.chacha.com/question/what-is-an-example-...
 Let me begin with 2 definitions: "In logic: [a deduction is an] inference in which a conclusion follows necessarily from one or more given premisses. An inference is "The http://answers.yahoo.com/question/index?qid=201201...
Top Related Searches
Explore this Topic
Deductive research is the type of social research based on deductive reasoning. Normally, it deals with starting with theories or generalizations, narrowing them ...
Inductive theory is comprised of predictions that are based on observations. Deductive theory, however, is based on reasoning from one or more premises to reach ...
Abstract reasoning is the process of generalising from concrete experiences and examples to larger, broader principles. It is a conceptual process by which concepts ...